<SEC-DOCUMENT>0001104659-23-128362.txt : 20231222
<SEC-HEADER>0001104659-23-128362.hdr.sgml : 20231222
<ACCEPTANCE-DATETIME>20231221182347
ACCESSION NUMBER:		0001104659-23-128362
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20231222
DATE AS OF CHANGE:		20231221

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STANDARD BIOTOOLS INC.
		CENTRAL INDEX KEY:			0001162194
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				770513190
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-275533
		FILM NUMBER:		231506725

	BUSINESS ADDRESS:	
		STREET 1:		2 TOWER PLACE
		STREET 2:		SUITE 2000
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		6502666000

	MAIL ADDRESS:	
		STREET 1:		2 TOWER PLACE
		STREET 2:		SUITE 2000
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FLUIDIGM CORP
		DATE OF NAME CHANGE:	20011113
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>tm2333539d1_424b3.htm
<DESCRIPTION>424B3
<TEXT>
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; background-color: white"><B>Filed Pursuant to Rule
424(b)(3)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; background-color: white"><B>Registration Statement&nbsp;No.&nbsp;333-275533</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white"><I>Standard BioTools
Inc. (&ldquo;Standard BioTools&rdquo;) has filed a registration statement on Form&nbsp;S-4,&nbsp;as amended (File&nbsp;No.&nbsp;333-275533)&nbsp;(the
 &ldquo;Registration Statement&rdquo;), with the Securities and Exchange Commission (&ldquo;SEC&rdquo;) for the offering to which this
communication relates. The Registration Statement relates to an offering of securities of Standard BioTools to stockholders of Soma Logic,
Inc., a Delaware corporation (&ldquo;SomaLogic&rdquo;), in connection with the merger (the &ldquo;Merger&rdquo;) contemplated by that
certain Agreement and Plan of Merger (the &ldquo;Merger Agreement&rdquo;), dated as of October 4, 2023, by and among Standard BioTools,
SomaLogic and Martis Merger Sub, Inc. (&ldquo;Merger Sub&rdquo;), a direct, wholly-owned subsidiary of Standard BioTools. The prospectus
filed on Form 424B3 in connection with the Registration Statement consists of a joint proxy statement/prospectus dated December 1, 2023
(the &ldquo;Prospectus&rdquo;).</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white">The following information
supplements and updates the information contained in the Prospectus and should be read together with the Prospectus. A copy of the Prospectus
can be accessed through the following link:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white"><A HREF="http://www.sec.gov/Archives/edgar/data/1162194/000110465923122872/tm2327944-8_424b3.htm" STYLE="-sec-extract: exhibit">https://www.sec.gov/Archives/edgar/data/1162194/000110465923122872/tm2327944-8_424b3.htm</A></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 24.5pt; background-color: white"><I>Before you invest,
you should read the Prospectus and Registration Statement and other documents Standard BioTools has filed with the SEC for more complete
information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov.</I></P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt; background-color: white"><B>SUPPLEMENT
TO PROSPECTUS</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The following information supplements the joint
proxy statement/prospectus and should be read in conjunction with the joint proxy statement/prospectus, which should be read in its entirety.
All page&#160;references are to pages&#160;in the joint proxy statement/prospectus, and terms used below have the meanings set forth in
the joint proxy statement/prospectus. Without admitting in any way that the disclosures below are material or otherwise required by law,
SomaLogic and Standard BioTools make the following amended and supplemental disclosures. For clarity, new text within the amended or amended
and restated portions of the joint proxy statement/prospectus is indicated with bold, underlined text (e.g., <B><FONT STYLE="text-decoration: underline">bold, underlined text</FONT></B>)
and removed text is indicated with strikethrough text (e.g., <FONT STYLE="text-decoration: line-through">strikethrough text</FONT>)<I>.</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>Under the heading &#8220;Questions And Answers
About The Merger,&#8221; the Answer on pages&#160;3 and 4 to the Question &#8220;What constitutes a quorum for the Standard BioTools Special
Meeting?&#8221; is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>A:</B></FONT></TD><TD>A
                                            quorum will be present at the Standard BioTools Special Meeting if the holders of a majority
                                            of the shares of Standard BioTools capital stock issued and outstanding and entitled to vote
                                            as of 5:00 p.m.&#160;Eastern Time on November&#160;29, 2023, which is the record date of
                                            the Standard BioTools Special Meeting (the &#8220;Standard BioTools Record Date&#8221;),
                                            are present virtually at the Standard BioTools Special Meeting or represented by proxy. As
                                            of 5:00 p.m.&#160;Eastern Time on the Standard BioTools Record Date, there were <STRIKE>83,162,205</STRIKE><B><U>80,030,193
                                            </U></B>shares of Standard BioTools Common Stock and 255,559 shares of Standard BioTools&#8217;
                                            Series&#160;B Preferred Stock (consisting of Standard BioTools&#8217; Series&#160;B-1 preferred
                                            stock, par value $0.001 per share (the &#8220;Series&#160;B-1 Preferred Stock&#8221;), and
                                            Standard BioTools&#8217; Series&#160;B-2 preferred stock, par value $0.001 per share (the
                                            &#8220;Series&#160;B-2 Preferred Stock,&#8221; and together with the Series&#160;B-1 Preferred
                                            Stock, the &#8220;Series&#160;B Preferred Stock&#8221;)) issued and outstanding and entitled
                                            to vote. This means that at least <STRIKE>41,708,883</STRIKE><B><U>40,142,877 </U></B>shares
                                            of Standard BioTools capital stock must be represented by stockholders present virtually
                                            at the Standard BioTools Special Meeting or represented by proxy to have a quorum <B>(provided
                                            that in no event will shares of Standard BioTools&rsquo; capital stock representing less
                                            than one-third of the voting power of the outstanding Standard BioTools capital stock constitute
                                            a quorum)</B>.<B>&#8239;</B>Your shares will be counted towards the quorum if you submit
                                            a valid proxy or attend the Standard BioTools Special Meeting. Abstentions, if any, will
                                            be included in determining the number of shares present at the meeting for the purpose of
                                            determining the presence of a quorum. A failure to instruct your bank, broker or other nominee
                                            will result in your shares not being included in the calculation of the number of shares
                                            of Standard BioTools capital stock represented at the Standard BioTools Special Meeting for
                                            purposes of determining whether a quorum has been achieved. However, your Standard BioTools
                                            capital stock will be counted toward determining whether a quorum is present if you instruct
                                            your bank, broker or other nominee on how to vote your Standard BioTools capital stock with
                                            respect to one or more of the Standard BioTools Proposals.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;Prospectus Summary</I></B></FONT><B><I><FONT STYLE="background-color: white">&#8212;</FONT>Litigation Relating to the
Merger,&#8221; the last paragraph on page&#160;19 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">A complaint has been filed against Standard BioTools
and the members of the Standard BioTools Board for allegedly causing the filing with the SEC on November&#160;14, 2023 of a materially
deficient registration statement on Form&#160;S-4. <B><FONT STYLE="text-decoration: underline">A complaint has been filed against SomaLogic, the members of the SomaLogic Board,
Standard BioTools, and Casdin Capital LLC for allegedly causing the filing with the SEC on November&#160;14, 2023 of a materially deficient
registration statement on Form&#160;S-4. A</FONT></B>mong other remedies, the <FONT STYLE="text-decoration: line-through">plaintiff seeks</FONT><B><FONT STYLE="text-decoration: underline">plaintiffs in both suits
seek </FONT></B>to enjoin an upcoming stockholder vote on the proposed Merger. Additional lawsuits arising out of the Merger may be filed
in the future. For a more detailed description of litigation and related matters in connection with the Merger, see &#8220;<I>The Merger
 &#8212; Litigation Relating to the Merger</I>&#8221; beginning on page&#160;135 of this joint proxy statement/prospectus.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;Comparative Per Share Market Price And Dividend Information</I></B></FONT><B><I><FONT STYLE="background-color: white">&#8212;</FONT>Holders,&#8221;
the first paragraph on page&#160;30 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">As of 5:00 p.m.&#160;Eastern Time on the Standard
BioTools Record Date, <FONT STYLE="text-decoration: line-through">83,162,205</FONT><B><FONT STYLE="text-decoration: underline">80,030,193 </FONT></B>shares of Standard BioTools Common Stock, held by 77 holders
of record, and 255,559 shares of Series&#160;B Preferred Stock, held by four holders of record, were outstanding and entitled to vote
at the Standard BioTools Special Meeting. As of 5:00 p.m.&#160;Eastern Time on the SomaLogic Record Date, 188,679,133 shares of SomaLogic
Common Stock, held by 202 holders of record, were outstanding and entitled to vote at the SomaLogic Special Meeting.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>The first paragraph under the heading &#8220;Risk
Factors&#8212;Risks Related to the Merger&#8212;Litigation filed or that may be filed against SomaLogic, Standard BioTools, Merger Sub
and/or the members of the SomaLogic Board or the Standard BioTools Board could prevent or delay the consummation of the Merger.&#8221;
beginning on page&#160;34 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">A complaint has been filed against Standard BioTools
and the members of the Standard BioTools Board for allegedly causing the filing with the SEC on November&#160;14, 2023 of a materially
deficient registration statement on Form&#160;S-4. <B><FONT STYLE="text-decoration: underline">A complaint has been filed against SomaLogic, the members of the SomaLogic Board,
Standard BioTools, and Casdin Capital LLC for allegedly causing the filing with the SEC on November&#160;14, 2023 of a materially deficient
registration statement on Form&#160;S-4. A</FONT></B>mong other remedies, the <FONT STYLE="text-decoration: line-through">plaintiff seeks</FONT><B><FONT STYLE="text-decoration: underline">plaintiffs in both suits
seek </FONT></B>to enjoin an upcoming stockholder vote on the proposed Merger. Additional lawsuits arising out of the Merger may be filed
in the future. For a more detailed description of litigation and related matters in connection with the Merger, see &#8220;<I>The Merger&#8212;Litigation
Relating to the Merger</I>&#8221; beginning on page&#160;135 of this joint proxy statement/ prospectus.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
second risk factor under the heading &#8220;Risk Factors</I></B></FONT><B><I><FONT STYLE="background-color: white">&#8212;</FONT>Risks
Related to the Standard BioTools Capital Structure,&#8221; beginning on page&#160;44, is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>Holders of the Series&#160;B Preferred Stock
are entitled to vote with the holders of the Standard BioTools Common Stock with voting power measured in a manner related to the conversion
ratio of the shares of Series&#160;B Preferred Stock, and holders of our Series&#160;B Preferred Stock have rights to approve certain
actions. Holders of the Series&#160;B Preferred Stock may exercise influence over the combined company, including through the ability
of the holders of the Series&#160;B-1 Preferred Stock and the holders of the Series&#160;B-2 Preferred Stock to each designate a member
of the Standard BioTools Board<FONT STYLE="text-decoration: underline">, and the Series&#160;B Preferred Stock will be senior to the common stock of the combined company in
a <FONT STYLE="background-color: white">voluntary or involuntary liquidation, dissolution or winding up of the affairs of the combined
company and will have put rights in connection with a future change of control of the combined company</FONT>.</FONT></I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Holders of the Series&#160;B Preferred Stock are
generally entitled to vote with the holders of the Standard BioTools Common Stock on all matters submitted for a vote of holders of the
Standard BioTools Common Stock (voting together with the holders of Standard BioTools Common Stock as one class) with voting power measured
in a manner related to the conversion ratio of the shares of Series&#160;B Preferred Stock, subject to certain voting limitations as described
in the applicable Certificate of Designations. Additionally, the consent of the holders of at least 60% of the shares of Series&#160;B
Preferred Stock is required for, among other things, (i)&#160;amendments to the Standard BioTools certificate of incorporation or bylaws
that have an adverse effect on the rights, preferences, privileges or voting powers of the Series&#160;B Preferred Stock and (ii)&#160;issuances
by Standard BioTools of securities that are senior to, or equal in priority with, the Series&#160;B Preferred Stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Additionally, pursuant to the Certificates of Designations
for the Series&#160;B Preferred Stock, the holders of a majority of the outstanding Series&#160;B-1 Preferred Stock and the holders of
a majority of the outstanding Series&#160;B-2 Preferred Stock each have the right to nominate and elect one member to the Standard BioTools
Board at each annual meeting of the stockholders of Standard BioTools or at any special meeting called for the purpose of electing directors,
for so long as the Casdin Preferred Percentage or Viking Preferred Percentage (each as defined in the applicable Certificate of Designations),
as applicable, is equal to or greater than 7.5%. Such directors are not subject to the classified board of directors provisions of the
Standard BioTools certificate of incorporation and are entitled to serve on committees of the Standard BioTools Board, subject to applicable
law and Nasdaq rules. Notwithstanding the fact that all directors will be subject to fiduciary duties to Standard BioTools and to applicable
law, the interests of the directors designated by the holders of Series&#160;B Preferred Stock may differ from the interests of the Standard
BioTools security holders as a whole or of our other directors.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">These significant stockholders may be able to determine
or significantly influence matters requiring stockholder approval. The interests of significant stockholders may not always coincide with
the interests of Standard BioTools or the interests of other stockholders. The Certificates of Designations for the Series&#160;B Preferred
Stock also provide that for so long as the Casdin Preferred Percentage or Viking Preferred Percentage, as applicable, is equal to or greater
than 7.5%, the director designated by the holders of the Series&#160;B-1 Preferred Stock or the Series&#160;B-2 Preferred Stock, as applicable,
will have certain consent rights over, among other things: (i)&#160;any increase in the number of directors on the Standard BioTools Board
beyond seven; (ii)&#160;the hiring, promotion, demotion, or termination of the Standard BioTools Chief Executive Officer; (iii)&#160;entering
into or modifying (including by waiver) any transaction, agreement or arrangement with any Related Person (as defined in the Certificates
of Designations for the Series&#160;B Preferred Stock), subject to certain exceptions; (iv)&#160;any voluntary petition under any applicable
federal or state bankruptcy or insolvency law effected by Standard BioTools; (v)&#160;any change in the principal business of Standard
BioTools or entry by Standard BioTools into any material new line of business; and (vi)&#160;for a period of three years after the closing
date of the private placement issuance to the holders of the Series&#160;B Preferred Stock, (A)&#160;any acquisition (including by merger,
consolidation or acquisition of stock or assets) of any assets, securities or property of any other person or (B)&#160;any sale, lease,
license, transfer or other disposition of any assets of Standard BioTools or any of its subsidiaries, in each case, other than acquisitions
or dispositions of inventory or equipment in the ordinary course of business consistent with past practice, for consideration in excess
of $50,000,000 in the aggregate in any six-month period.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">As a result <B><FONT STYLE="text-decoration: underline">of the consent rights of the
director designated by the holders of the Series&#160;B-1 Preferred Stock and Series&#160;B-2 Preferred Stock that remain in place for
so long as the Casdin Preferred Percentage or Viking Preferred Percentage, as applicable, is equal to or greater than 7.5%,</FONT></B> the
holders of the Series&#160;B Preferred Stock have the ability to influence the outcome of <FONT STYLE="text-decoration: line-through">certain</FONT><B><FONT STYLE="text-decoration: underline">the </FONT></B>matters
affecting governance and capitalization of the combined company <B><FONT STYLE="text-decoration: underline">that are subject to those consent rights.</FONT></B> The obligations
to the holders of the Series&#160;B Preferred Stock could also limit the ability to obtain additional financing or increase borrowing
costs, which could have an adverse effect on the financial condition of the combined company.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">In addition, the Series&#160;B Preferred
Stock will have a senior liquidation preference to the combined company's common stock in the event of a voluntary or involuntary liquidation,
dissolution or winding up of the affairs of the Company and will retain the right to require redemption of the Series&#160;B-1 Preferred
Stock and Series&#160;B-2 Preferred Stock, respectively, in the event of a &#8220;Change of Control&#8221; as defined in the Certificates
of Designations of the Series&#160;B Preferred Stock, which could have an adverse effect on the value of the combined company&#8217;s
common stock in certain sale transactions at valuations that are less than the conversion price of the Series&#160;B Preferred Stock.
Beginning on April&#160;4, 2027, the combined company will be able to convert the Series&#160;B Preferred Stock into common stock if the
trading price of the common stock exceeds $8.50 per share for at least 20 consecutive trading days.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><FONT STYLE="text-decoration: underline">See
 &#8220;<I>Description of Capital Stock</I></FONT></B></FONT><B><FONT STYLE="text-decoration: underline"><I>&#8212;Preferred Stock</I>&#8221; for additional information regarding
the Series&#160;B Preferred Stock, including its liquidation preference and rights upon a Change of Control.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Standard BioTools Special Meeting</I></B></FONT><B><I><FONT STYLE="background-color: white">&#8212;</FONT>Record
Date for the Standard BioTools Special Meeting and Quorum<FONT STYLE="background-color: white">&#8212;</FONT>Record Date,&#8221; the last
paragraph of page&#160;55 and the first paragraph of page&#160;56 are amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Only holders of record of Standard BioTools Common
Stock, Standard BioTools&#8217; Series&#160;B-1 preferred stock (the &#8220;Series&#160;B-1 Preferred Stock&#8221;) and Standard BioTools&#8217;
Series&#160;B-2 preferred stock (the &#8220;Series&#160;B-2 Preferred Stock,&#8221; and together with the Series&#160;B-1 Preferred Stock,
the &#8220;Series&#160;B Preferred Stock&#8221;) as of 5:00 p.m.&#160;Eastern Time on November&#160;29, 2023, the record date for the
Standard BioTools Special Meeting, will be entitled to notice of, and to vote at, the Standard BioTools Special Meeting or any postponements
or adjournments thereof. Each share of Standard BioTools Common Stock entitles the holder thereof to cast one vote on each matter that
comes before the Standard BioTools Special Meeting. Each holder of Series&#160;B-1 Preferred Stock or Series&#160;B-2 Preferred Stock
is entitled to the number of votes per share of Series&#160;B-1 Preferred Stock and Series&#160;B-2 Preferred Stock calculated in accordance
with the Certificates of Designations filed herewith as Exhibits 3.6 and 3.7, respectively. As described elsewhere in this joint proxy
statement/ prospectus, the holders of the Series&#160;B Preferred Stock are subject to contractual Voting Thresholds, limiting each to
approximately <FONT STYLE="text-decoration: line-through">24,028,166</FONT><B><FONT STYLE="text-decoration: underline">23,404,895 </FONT></B>voting shares, meaning the holders of the Series&#160;B-1 Preferred
Stock collectively and the holders of the Series&#160;B-2 Preferred Stock collectively each have approximately 15% of the voting power
as of the Standard BioTools Record Date.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">As of the Standard BioTools Record Date, there
were <FONT STYLE="text-decoration: line-through">83,162,205</FONT><B><FONT STYLE="text-decoration: underline">80,030,193 </FONT></B>shares of Standard BioTools Common Stock and 255,559 shares of Series&#160;B
Preferred Stock outstanding and entitled to vote at the Standard BioTools Special Meeting. On an as converted basis, the latter equals
75,164,397 shares of Standard BioTools Common Stock, which means there is a total number of possible voting shares equal to <FONT STYLE="text-decoration: line-through">158,326,602</FONT><B><FONT STYLE="text-decoration: underline">155,194,590
</FONT></B>shares as of the Standard BioTools Record Date.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>The paragraph under the heading &#8220;The
Standard BioTools Special Meeting&#8212;Record Date for the Standard BioTools Special Meeting and Quorum&#8212;Quorum&#8221; on page 56
is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In order for business to be conducted at the Standard
BioTools Special Meeting, a quorum must be present. A quorum will be present at the Standard BioTools Special Meeting if the holders of
a majority of the shares of Standard BioTools capital stock issued and outstanding and entitled to vote as of the close of business on
the Standard BioTools Record Date are present virtually at the Standard BioTools Special Meeting or represented by proxy <FONT STYLE="text-decoration: underline"><B>(provided
that in no event will shares of Standard BioTools&#8217; capital stock representing less than one-third of the voting power of the outstanding
Standard BioTools capital stock constitute a quorum)</B></FONT>. Abstentions (Standard BioTools shares for which proxies have been received
but for which the holders have abstained from voting or as to which the holder attends the Standard BioTools Special Meeting but does
not vote) will be counted as present and entitled to vote for purposes of determining a quorum. A failure to instruct your bank, broker
or other nominee will result in your shares not being included in the calculation of the number of shares of Standard BioTools capital
stock represented at the Standard BioTools Special Meeting for purposes of determining whether a quorum has been achieved. However, your
shares of Standard BioTools capital stock will be counted toward determining whether a quorum is present if you instruct your bank, broker
or other nominee on how to vote your shares of Standard BioTools capital stock with respect to one or more of the Standard BioTools Proposals.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>Under the heading &#8220;The Merger,&#8221;
the section entitled &#8220;Background of the Merger,&#8221; beginning on page&#160;76 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Background of the Merger</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><I>The following chronology summarizes the key
events that led to the signing of the Merger Agreement. This chronology does not catalogue every interaction of or among members of the
Standard BioTools Board or SomaLogic Board, members of Standard BioTools management or SomaLogic management, Standard BioTools&#8217;
or SomaLogic&#8217;s financial or legal advisors or any other person.</I></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Each of the Standard BioTools Board and the SomaLogic
Board, together with members of their respective management teams, regularly reviews and assesses the performance, future growth prospects,
business plans and overall strategic direction of Standard BioTools and SomaLogic, respectively, and considers a variety of strategic
alternatives that may be available to Standard BioTools and SomaLogic, respectively, including continuing to pursue each respective company&#8217;s
strategy as a standalone company or pursuing potential strategic transactions with third parties, in each case with the goal of maximizing
stockholder value.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">As discussed in greater detail below, with the
commencement of discussions of any specific transaction, each company considered whether any potential conflicts of interest might exist
among any board members and took appropriate corporate governance steps to enhance and protect the independence of deliberations by the
board of directors of the companies involved, including the recusal of board members and the establishment of independent transaction
committees. This includes the process described below relating to Casdin Capital, LLC (together with its affiliated entities, &#8220;Casdin
Capital&#8221;) as a stockholder in each company and Eli Casdin, as Casdin Capital&#8217;s founder and Chief Investment Officer and a
member of the board of directors of each company, that was followed in discussions between Standard BioTools and SomaLogic through the
announcement of a definitive agreement on October&#160;4, 2023.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">In connection with its establishment of appropriate
corporate governance steps to enhance and protect the independence of deliberations by the SomaLogic Board and SomaLogic Transaction Committee
(as defined below), the SomaLogic Board was aware of the business relationships between members of the SomaLogic Board, Casdin Capital
and Eli Casdin, which the SomaLogic Board did not consider to represent a conflict of interest with respect to the Merger, including the
following:</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Symbol; font-size: 10pt">&#183;</FONT></TD><TD><B><FONT STYLE="text-decoration: underline">Tom Carey, a member of the SomaLogic Board and a member of the SomaLogic Transaction Committee, (i)&#160;is the founder of Perspective
Group, an executive search firm that operates within the life sciences industry from which Mr.&#160;Carey has retired, which has performed
work for clients in which Casdin Capital is or was an investor; and (ii)&#160;previously served on the board of directors of Exact Sciences
Corporation where Mr.&#160;Casdin also served. Casdin Capital owns a 0.25% equity interest in Exact Sciences, but Mr.&#160;Carey was not
a member of that company&#8217;s board at the time of Mr.&#160;Carey&#8217;s election to the SomaLogic Board, having previously resigned
from the board of directors of Exact Sciences when his term expired on June&#160;30, 2021;</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Symbol; font-size: 10pt">&#183;</FONT></TD><TD><B><FONT STYLE="text-decoration: underline">Troy Cox, a member of the SomaLogic Board and a member of the SomaLogic Transaction Committee, (i)&#160;served on the board
of CM Life Sciences II, the special purpose acquisition company that completed a business combination with SomaLogic (and of which Eli
Casdin was a founder) and, in connection with his service, received 25,000 &#8220;founder shares&#8221; in CM Life Sciences II and purchased
50,000 additional shares of common stock and private placement warrants for an additional 166,666 shares of common stock, as part of the
PIPE transaction completed with the business combination transaction; (ii)&#160;previously served as a member of the board and Chief Executive
Officer of Foundation Medicine Inc. (a company in which Casdin Capital had previously invested but was no longer an investor at the time
of Mr.&#160;Cox&#8217;s election to the SomaLogic Board); (iii)&#160;currently serves as a member of the board of LetsGetChecked, a virtual
care company in which Casdin Capital is an investor and on whose board of directors Mr.&#160;Casdin serves; and (iv)&#160;had previously
made a $1,000,000 investment in Casdin Capital;</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Symbol; font-size: 10pt">&#183;</FONT></TD><TD><B><FONT STYLE="text-decoration: underline">Kathy Hibbs, a member of the SomaLogic Board, is the Chief Administrative Officer of 23andMe, a publicly traded company in which
Casdin Capital had previously invested in an amount equal to approximately 1.3% of its outstanding common stock (but in which it maintained
no ownership at the time of Ms.&#160;Hibbs&#8217; election to the SomaLogic Board);</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Symbol; font-size: 10pt">&#183;</FONT></TD><TD><B><FONT STYLE="text-decoration: underline">Tycho Peterson, a member of the SomaLogic Board and a member of the SomaLogic Transaction Committee, is the Chief Financial
Officer of Adaptive Biotechnologies, a publicly traded company in which Casdin Capital invested following the execution of the Merger
Agreement, and owned approximately 1.0% of the outstanding shares as of November&#160;14, 2023; and</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Symbol; font-size: 10pt">&#183;</FONT></TD><TD><B><FONT STYLE="text-decoration: underline"><B>Jason Ryan, the Chairman of the SomaLogic Board and a member of
the SomaLogic Transaction Committee, serves as Executive Chairman of GeneDx Holdings Corp., a publicly traded company in which Casdin
Capital is a significant stockholder (beneficially owning approximately 12.1% as of April 17, 2023 (the date reported in this company&#8217;s
most recent proxy statement, and based on information in such proxy statement)) and on whose board of directors (and compensation committee
of the board of directors) Mr. Casdin serves. In 2022, Mr. Ryan received compensation from GeneDx Holdings Corp. for his service as Executive
Chairman consisting of $618,923 of cash compensation, options and restricted stock units for GeneDx common stock having fair values on
the date of grant of $876,649 and $1,658,374, respectively (with the fair value of stock options calculated using the Black-Scholes option
pricing model), and $39,515 of other compensation. In 2023, Mr. Ryan received an award of restricted stock units, with a grant date value
of approximately $433,000 based on the closing price of the stock on the date of grant. A portion of the restricted stock units were forfeited
because they were subject to performance conditions that were not achieved. In addition. Mr. Ryan (i) serves as a member of the board
of directors of Singular Genomics, in which Casdin Capital is an investor, (ii) previously served as the Chief Financial Officer and Chief
Operating Officer of Magenta Therapeutics, a biotechnology company in which Casdin Capital had previously invested, but in which it maintained
no investment at the time of Mr. Ryan&#8217;s election to the SomaLogic Board; and (iii) previously served as the Chief Financial Officer
of Foundation Medicine Inc., a biotechnology company in which Casdin Capital had previously invested, and which was acquired by Roche
in 2018.</B></FONT></B></TD></TR></TABLE>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">None of the other members of the SomaLogic
Board had any relationships with Casdin Capital other than its investment in SomaLogic.</FONT></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In August&#160;2021, the SomaLogic Board engaged
Cowen and Company, LLC (&#8220;Cowen&#8221;) to assist in a review of potential acquisitions and financing alternatives available to SomaLogic
(the &#8220;2021-2022 SomaLogic Strategic Review&#8221;).</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;1, 2021, SomaLogic completed
a business combination transaction with CM Life Sciences II, a special purpose acquisition company (the &#8220;SomaLogic SPAC Transaction&#8221;).
Following the closing of the SomaLogic SPAC Transaction, and as part of its stated strategy, SomaLogic continued to actively explore strategic
transaction opportunities to scale and expand its business with the assistance of Cowen <B><FONT STYLE="text-decoration: underline">in light of SomaLogic&#8217;s view of the
importance of scale in the life sciences tools industry.</FONT></B> As part of the 2021-2022 SomaLogic Strategic Review, Cowen contacted
six potential strategic parties, including Standard BioTools, to discuss their interest in potential strategic transactions with SomaLogic,
including financing alternatives and the acquisition of, or a merger with, SomaLogic. In addition to the discussions in June&#160;2022
described below, following the closing of the SomaLogic SPAC Transaction, SomaLogic had preliminary discussions with Standard BioTools
(which was then called Fluidigm Corporation) to ascertain each party&#8217;s interest in exploring a potential strategic transaction,
but these discussions did not result in any proposals for a transaction. As part of those discussions, SomaLogic and Fluidigm Corporation
entered into a mutual confidential disclosure agreement on February&#160;14, 2022. This mutual confidential disclosure agreement did not
include a standstill provision.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">From time to time following the SomaLogic SPAC
Transaction, the SomaLogic Board utilized a transaction committee of the SomaLogic Board (the &#8220;SomaLogic Transaction Committee&#8221;)
to review potential strategic opportunities, including the 2021-2022 SomaLogic Strategic Review. The composition of the SomaLogic Transaction
committee changed over time as the composition of the SomaLogic Board changed (including as described below). The SomaLogic Board did
not delegate any authority to approve a transaction to the SomaLogic Transaction Committee and the members of the SomaLogic Transaction
Committee did not receive additional compensation for their service on the SomaLogic Transaction Committee<B><FONT STYLE="text-decoration: underline">. Eli Casdin served on
the SomaLogic Transaction Committee during this period (and until SomaLogic received the June&#160;16 Proposal, as defined below), but
recused himself from any discussions related to Standard BioTools.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In April&#160;2022, Standard BioTools (previously
known as Fluidigm Corporation) embarked on a strategic restructuring of the company. The restructuring involved a $250 million Series&#160;B
Convertible Preferred Stock investment (the &#8220;2022 Standard BioTools Investment&#8221;) from entities affiliated with Viking Global
Investors LP (&#8220;Viking&#8221;) and Casdin Capital LLC, the appointment of an experienced executive leadership team, led by President
and Chief Executive Officer Michael Egholm, Ph.D., former Chief Technology Officer of Danaher Life Sciences, and the implementation of
a strategy focused on unlocking value in the highly fragmented life science tools space at scale. Specifically, since the completion of
this restructuring, Standard BioTools has focused on, among other matters, actively pursuing business development opportunities in the
life sciences industry with an objective to leverage its management expertise and operating discipline to drive value creation for stockholders.
For a discussion of Standard BioTools&#8217; business strategies, see &#8220;<I>The Merger &#8212; Standard BioTools&#8217; Reasons for
the Merger; Recommendation of the Standard BioTools Board</I>&#8221; below.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">During 2022, consistent with its business strategy,
Standard BioTools engaged in outreach and preliminary discussions with third parties about potential strategic acquisitions by Standard
BioTools. This outreach was directed at a range of companies in the life sciences tools sector, including private companies and public
companies, that could potentially complement Standard BioTools&#8217; business and align with its growth-focused strategy, including SomaLogic.
This process was overseen by a special advisory committee of the Standard BioTools Board, formed on May&#160;3, 2022, and consisting of
the directors Martin Madaus, Frank Witney, Bill Colston and Mr.&#160;Casdin. The special advisory committee&#8217;s mandate was initially
to oversee and negotiate the terms of a proposed transaction with a specific company (which was not SomaLogic). Subsequently, the work
of the special advisory committee became more general, consisting of assisting Standard BioTools management in evaluating and negotiating
preliminary terms of potential strategic opportunities generally. Most of this outreach was conducted by Standard BioTools&#8217; internal
business development team, but some outreach was assisted by Centerview Partners LLC (&#8220;Centerview&#8221;) as financial advisor to
Standard BioTools. Centerview was chosen to assist Standard BioTools given its expertise and experience with similar transactions and
industry knowledge, as well as its familiarity with Standard BioTools. As a result of this outreach, in 2022, Standard BioTools entered
into 16 confidential disclosure agreements, including with SomaLogic, as described below. Of these 16 confidential disclosure agreements,
only two (including the confidential disclosure agreement with SomaLogic) contained a standstill provision. Such standstill provisions
(1)&#160;were mutual or binding only on Standard BioTools, (2)&#160;were for a duration of either 12 or 24 months and (3)&#160;terminated
if, among other things, the party able to enforce the standstill entered into an agreement providing for a change of control transaction
with a third party. One of these standstill provisions (not with SomaLogic) was subject to a &#8220;don&#8217;t ask, don&#8217;t waive&#8221;
provision. Initial mutual management presentations were held and preliminary business due diligence was conducted with respect to each
party, including SomaLogic on August&#160;8, 2022 as described below. As a result, in the fourth quarter of 2022, Standard BioTools sent
written non-binding indications of interest to three of these companies (none of which was SomaLogic). Each of these indications of interest
was highly preliminary and involved a proposed acquisition using shares of Standard BioTools common stock or a combination of shares of
Standard BioTools common stock and cash. Two of the indications of interest did not result in further discussions. One of the companies
that was sent an indication of interest was subsequently acquired by another company and Standard BioTools engaged in preliminary discussions
with the successor entity thereof in 2023, as referenced below. A more detailed description of the interactions between Standard BioTools
and SomaLogic in 2022 is set forth below.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On June&#160;23, 2022, Dr.&#160;Egholm and Roy
Smythe, then-Chief Executive Officer of SomaLogic, held an introductory call to discuss potential interest in exploring a combination
of Standard BioTools and SomaLogic. On July&#160;12, 2022, Standard BioTools and SomaLogic entered into a new mutual confidential disclosure
agreement to facilitate the exchange of diligence information. This mutual confidential disclosure agreement contained a standstill provision
that (1)&#160;was binding only on Standard BioTools, (2)&#160;was for a duration of 12 months, (3)&#160;would terminate if, among other
things, SomaLogic entered into an agreement providing for a change of control transaction with a third party and (4)&#160;was not subject
to a &#8220;don&#8217;t ask, don&#8217;t waive&#8221; provision.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The discussions between SomaLogic and Standard
BioTools progressed through initial business due diligence, including a preliminary meeting on August&#160;8, 2022 at SomaLogic&#8217;s
headquarters in Boulder, Colorado and a subsequent meeting on October&#160;3, 2022 in San Diego, California. <B><FONT STYLE="text-decoration: underline">Eli Casdin recused
himself from all deliberations of the SomaLogic Transaction Committee related to Standard BioTools during this period. The other members
of the SomaLogic Transaction Committee oversaw the diligence process and attended the foregoing meetings. I</FONT></B>n November&#160;2022,
these preliminary discussions were terminated without any specific valuation or other terms being proposed or any written non-binding
indication of interest being delivered.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In addition to the preliminary meetings with Standard
BioTools, as part of the 2021-2022 SomaLogic Strategic Review, SomaLogic also entered into a mutual confidential disclosure agreement
with a party referred to as Counterparty A on September&#160;27, 2022 in order to discuss a potential combination with Counterparty A.
This mutual confidential disclosure agreement did not include a standstill provision. Other than Standard BioTools and Counterparty A,
no parties entered into confidential disclosure agreements or expressed interest in a potential strategic transaction with SomaLogic,
and no substantive discussions emerged regarding potential transactions from the 2021-2022 SomaLogic Strategic Review. After reviewing
the results of the outreach and the discussions with Standard BioTools and Counterparty A and the lack of any proposal for a strategic
transaction, the SomaLogic Board decided to pause its exploration of strategic initiatives with Cowen in December&#160;2022 <B><FONT STYLE="text-decoration: underline">and
focus attention on implementing a cost savings plan.</FONT></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On March&#160;28, 2023, SomaLogic announced the
appointment of Mr.&#160;Taich as interim Chief Executive Officer, the resignation of Dr.&#160;Smythe as Chief Executive Officer and as
a member of the SomaLogic Board, the retirement of two independent members of the SomaLogic Board and the addition of four new independent
members of the SomaLogic Board. <B><FONT STYLE="text-decoration: underline">The SomaLogic Board utilized the services of Mr.&#160;Carey (who had previously retired from, and
no longer retained an ownership interest in, Perspective Group) in connection with its identification of the four new independent members.
A</FONT></B>s part of the nomination process for the new directors, the SomaLogic Board determined that each of the new directors was independent
under relevant laws, regulations and listing standards.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">During 2023, Standard BioTools continued, pursuant
to its business strategy, to actively explore other strategic opportunities with a range of companies, including private companies and
public companies, in the life sciences tools sector that Standard BioTools assessed could potentially complement Standard BioTools&#8217;
business and align with its growth-focused strategy, including SomaLogic. As a result, in 2023, Standard BioTools&#8217; entered into
nine confidential disclosure agreements, including a new agreement with SomaLogic, as described below, of which three (including the confidential
disclosure agreement with SomaLogic) contained a standstill provision on terms consistent with the description above (unless otherwise
specified below). Initial mutual management presentations were held, and preliminary business due diligence was conducted with respect
to each party. As a result, in the first, second and third quarters of 2023, Standard BioTools sent written non-binding indications of
interest to five companies (including SomaLogic, as described further below). Each of these indications of interest was highly preliminary
and involved a proposed acquisition using shares of Standard BioTools common stock or a combination of shares of Standard BioTools common
stock and cash. None of these indications of interest resulted in further discussions, except with respect to SomaLogic, as described
below in more detail.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In April&#160;2023, the SomaLogic Transaction Committee,
then consisting of Jason Ryan, Tom Carey, Troy Cox, Tycho Peterson and Mr.&#160;Casdin, reconvened to review SomaLogic&#8217;s past strategic
discussions and outreach, and to oversee any future strategic process and review of strategic alternatives with a focus on strategic alternatives
that would increase scale and the diversity of products and lead to enhanced operating efficiencies that would result in an accelerated
path to profitability.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On April&#160;28, 2023, Dr.&#160;Egholm, Mr.&#160;Kim
and Mr.&#160;Taich held a telephone call in which Dr.&#160;Egholm and Mr.&#160;Kim congratulated Mr.&#160;Taich on his appointment as
Interim Chief Executive Officer. The parties also had a high-level discussion as to whether there might be mutual interest in a potential
combination of the two companies.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In early May&#160;2023, SomaLogic engaged Perella
Weinberg Partners LP (&#8220;PWP&#8221;) to assist in a new review of potential strategic initiatives, based on its qualifications, expertise,
reputation, and its knowledge of SomaLogic&#8217;s business and the industry in which it operates. As described below, following the receipt
of the June&#160;16 Proposal (as defined below), PWP contacted 16 parties, at the direction of the SomaLogic Transaction Committee, to
ascertain their interest in a potential strategic transaction with SomaLogic, as described below.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On May&#160;15, 2023, at the direction of Standard
BioTools&#8217; independent directors, Centerview contacted PWP to discuss whether SomaLogic would be interested in reviving the prior
discussions between SomaLogic and Standard BioTools regarding a potential combination of the two companies. Centerview and PWP held a
further call on May&#160;16, 2023 to discuss a potential combination.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">During May&#160;and early June&#160;2023, the management
teams of each company maintained informal discussions with each other, including the periodic involvement of representatives of PWP and
Centerview, to further explore the strategic rationale of a potential combination.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On June&#160;6, 2023, the SomaLogic Board held
a regularly scheduled board meeting <B><FONT STYLE="text-decoration: underline">(which Eli Casdin attended),</FONT></B> with members of SomaLogic senior management and representatives
of PWP, SomaLogic&#8217;s outside legal counsel, Fenwick&#160;&amp; West LLP (&#8220;Fenwick&#8221;), and Boston Consulting Group (&#8220;BCG&#8221;)
in attendance. At this meeting, the SomaLogic Board and representatives of PWP discussed SomaLogic&#8217;s potential strategic alternatives
and the challenges to SomaLogic&#8217;s growth and profitability resulting from its current lack of scale and dependence on its proteomics
analysis platform. A further description of such challenges are included in the section of this joint proxy statement/prospectus captioned
 &#8220;<I>The Merger &#8212; SomaLogic&#8217;s Reasons for the Merger; Recommendation of the SomaLogic Board</I>&#8221;. In addition,
members of SomaLogic senior management and BCG reviewed, and the SomaLogic Board discussed, <FONT STYLE="text-decoration: line-through">an updated</FONT><B><FONT STYLE="text-decoration: underline">a proposed
 &#8220;base case&#8221;</FONT></B> long-range financial plan through 2027 <FONT STYLE="text-decoration: line-through">(the &#8220;SomaLogic Forecast&#8221;) </FONT>that had
been prepared by SomaLogic management<B><FONT STYLE="text-decoration: underline">, along with different scenarios based on alternative operating expense assumptions</FONT>.<FONT STYLE="text-decoration: line-through">,
</FONT></B><FONT STYLE="text-decoration: line-through">as described in the section of this joint proxy statement/prospectus captioned &#8220;<I>The Merger &#8212; Summary
of Certain SomaLogic Unaudited Prospective Financial Information</I>&#8221;</FONT><B><FONT STYLE="text-decoration: underline">. The SomaLogic Board discussed this proposed
forecast, and asked SomaLogic management to continue work refining it.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">With the commencement of substantive discussions
between Standard BioTools and SomaLogic in 2023 through the announcement of a definitive agreement on October&#160;4, 2023, the Standard
BioTools Board and the SomaLogic Board, each after considering relevant factors and after discussion, independently implemented the following
corporate governance measures to enhance and protect the independence of deliberations by the boards of directors of both companies given
Casdin Capital and Mr.&#160;Casdin&#8217;s relationships with both Standard BioTools and SomaLogic, as described herein. Specifically,
(1)&#160;Mr.&#160;Casdin would be excluded from any board meetings, board deliberations and board communications at both companies that
addressed the potential transaction, (2)&#160;each of Standard BioTools and SomaLogic separately established independent board transaction
committees (which excluded Mr.&#160;Casdin) to oversee such process, as described further below, and (3)&#160;an appropriate recusal process
would be utilized with respect to any ultimate board vote by either side, if the potential transaction were to progress to such a point.
In addition, Mr.&#160;Casdin agreed to waive his right to notice of any board meeting or to receive information relating to any proposed
transaction from either Standard BioTools, SomaLogic or representatives of either party. These measures were in place with respect to
all the board meetings, board deliberations and board communications (including committees of the board) at both companies described below,
unless otherwise noted. For a summary description of Casdin Capital&#8217;s and Mr.&#160;Casdin&#8217;s relationship as a stockholder,
including as a holder of Series&#160;B-1 Preferred Stock, and as a member of the board of directors of each company, see &#8220;<I>The
Merger &#8212; Interests of Standard BioTools Directors and Executive Officers in the Merger &#8212; Relationships with Casdin Capital</I>&#8221;
beginning on page&#160;124 of this joint proxy statement/prospectus.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On June&#160;16, 2023, Standard BioTools management,
after discussion with members of the Standard BioTools Board, delivered to SomaLogic a written preliminary, non-binding indication of
interest outlining the terms of a proposed all-stock business combination (the &#8220;June&#160;16 Proposal&#8221;). The June&#160;16
Proposal proposed a transaction pursuant to which Standard BioTools would issue shares of its Common Stock to SomaLogic equityholders
based on a fixed exchange ratio equal to between 1.2600 and 1.5200 shares of Standard BioTools Common Stock for each share of SomaLogic
Common Stock, resulting in a post-closing ownership split of approximately 36% to 40% for Standard BioTools stockholders and 60% to 64%
for SomaLogic stockholders on a fully diluted basis (including the Series&#160;B Preferred Stock on an as-converted basis and the settlement
of Standard BioTools&#8217; convertible notes on a &#8220;net basis&#8221; with cash being paid for the principal amount). The June&#160;16
Proposal implied a price per share to SomaLogic stockholders of between $2.92 and $3.50, which represented a premium of approximately
0% to 20% based on SomaLogic&#8217;s 10-day volume weighted average price (&#8220;VWAP&#8221;) as of June&#160;15, 2023 (which was $2.92),
the last trading day prior to Standard BioTools&#8217; delivery of the June&#160;16 Proposal. The June&#160;16 Proposal also proposed
a period of exclusive negotiations. Mr.&#160;Casdin was recused from all discussions regarding the June&#160;16 Proposal, which were conducted
by the independent members of the Standard BioTools Board and, from and after July&#160;7, 2023, by the Standard BioTools Transaction
Committee, as described below.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on June&#160;16, 2023, Standard BioTools and
SomaLogic entered into a new mutual confidential disclosure agreement on the same terms as their prior confidential disclosure agreement,
except with a mutual one-year standstill provision commencing on the date thereof that would terminate if, among other things, either
party entered into an agreement providing for a change of control transaction with a third party, and having other standstill terms consistent
with the prior confidential disclosure agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In June&#160;2023, following the receipt of the
June&#160;16 Proposal, Mr.&#160;Casdin ceased to be a member of the SomaLogic Transaction Committee and had no further involvement with
the SomaLogic Transaction Committee. The SomaLogic Board believed that the members of the SomaLogic Transaction Committee did not have
any relationships that would represent a conflict of interest with respect to a potential transaction with Standard BioTools.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on June&#160;16, 2023, members of the SomaLogic
Transaction Committee met, with Mr.&#160;Taich and representatives of PWP and Fenwick in attendance, to review the June&#160;16 Proposal.
The members of the SomaLogic Transaction Committee then requested that PWP prepare a financial review of the June&#160;16 Proposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On June&#160;21, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, and discussed the June&#160;16
Proposal. PWP reviewed the June&#160;16 Proposal, including its terms and rationale, the trading prices of SomaLogic&#8217;s Common Stock
and Standard BioTools&#8217; Common Stock, and the pro forma financial contribution of the two parties to the combined company based on
recent historical results. The SomaLogic Transaction Committee discussed the increased scale and cost synergies that could be realized
by the combined company and potential value creation that may result from the combination of the two parties. The SomaLogic Transaction
Committee discussed the ownership of Series&#160;B Preferred Stock of Standard BioTools by Casdin Capital and Viking, and each of their
Series&#160;B Put Rights. The SomaLogic Transaction Committee and representatives of PWP then discussed other parties that might be interested
in an acquisition of, or merger with, SomaLogic. Following discussion, the SomaLogic Transaction Committee directed PWP to contact Centerview
to facilitate exploration of a potential transaction with Standard BioTools, and to indicate to Centerview that SomaLogic would need to
complete diligence on Standard BioTools&#8217; financial position and forecast, synergy expectations and other aspects of the proposed
transaction prior to engaging in a substantive discussion regarding the material terms of the transaction, including the exchange ratio.
In addition, the SomaLogic Transaction Committee directed PWP to inform Centerview that SomaLogic would not agree to exclusivity and would
only explore a potential transaction that would not cause the Series&#160;B Put Right to become exercisable in the proposed transaction.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On June&#160;22, 2023, representatives of PWP informed
representatives of Centerview that SomaLogic would be willing to explore a potential transaction but would need to complete diligence
on Standard BioTools&#8217; financial position and forecast, synergy expectations and other aspects of the proposed transaction prior
to engaging in a substantive discussion regarding the material terms of the transaction, including the exchange ratio. Representatives
of PWP also indicated to representatives of Centerview that SomaLogic would not agree to exclusivity, and that SomaLogic would only explore
a potential transaction that would not cause the Series&#160;B Put Right to become exercisable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On June&#160;24, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, to discuss the June&#160;16
Proposal and the status of discussions with Standard BioTools. A representative of Fenwick reviewed the terms of the Series&#160;B Preferred
Stock and the transaction structure proposed in the June&#160;16 Proposal, noting that the Series&#160;B Put Right would only be exercisable
in a transaction that constituted a &#8220;Change of Control&#8221; as defined in the Certificates of Designations of the Series&#160;B
Preferred Stock, and discussing the applicability of that definition to the transaction proposed by Standard BioTools. Representatives
of PWP then discussed financial aspects of the June&#160;16 Proposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July&#160;6, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, to discuss the status
of discussions and due diligence with Standard BioTools, as well as SomaLogic&#8217;s preparations for a management presentation to Standard
BioTools. The SomaLogic Transaction Committee and representatives of PWP also discussed additional potential counterparties to contact
to explore interest in a potential transaction with SomaLogic, and the SomaLogic Transaction Committee directed PWP to contact 16 parties
that were identified at this meeting. PWP identified such parties based on its industry knowledge and expertise. Representatives of PWP
then left the meeting, and the SomaLogic Transaction Committee discussed the terms proposed by PWP for its engagement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Beginning on July&#160;7, 2023, PWP contacted these
potential strategic counterparties.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July&#160;7, 2023, the Standard BioTools Board
formed a new transaction committee (the &#8220;Standard BioTools Transaction Committee&#8221;) in furtherance of the corporate governance
measures already implemented and to provide an additional layer of oversight to the transaction process and an added resource for the
Standard BioTools management team. The Standard BioTools Transaction Committee consisted of Fenel Eloi, Martin Madaus and Frank Witney.
Mr.&#160;Casdin was not made a member of the Standard BioTools Transaction Committee. The members of the Standard BioTools Transaction
Committee did not have any relationships that would represent a conflict of interest with respect to a potential transaction with SomaLogic.
The Standard BioTools Transaction Committee was empowered to review and evaluate any potential transaction, to negotiate the terms of
the proposed transaction and to make a recommendation to the Standard BioTools Board with respect thereto. The Standard BioTools Board
did not delegate any authority to approve a transaction to the Standard BioTools Transaction Committee.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">During the second week of July&#160;2023, reciprocal
management presentations occurred between Standard BioTools and SomaLogic, with representatives of PWP and Centerview in attendance. <FONT STYLE="text-decoration: line-through">Specifically,
on</FONT><B><FONT STYLE="text-decoration: underline">On </FONT></B>July&#160;10, 2023, members of Standard BioTools management, including Dr.&#160;Egholm, Mr.&#160;Kim and Jeff
Black (Standard BioTools&#8217; Chief Financial Officer), provided an overview of Standard BioTools, including Standard BioTools&#8217;
current business operations and financial forecast to members of SomaLogic management, including Mr.&#160;Taich and Jason Ryan, Chairman
of the SomaLogic Board. <FONT STYLE="text-decoration: line-through">On July&#160;12, 2023, members of SomaLogic management, including Mr.&#160;Taich and Chairman Ryan, gave
an overview of SomaLogic, including SomaLogic&#8217;s business, operations, management team, technology, intellectual property and the
SomaLogic Forecast, to members of Standard BioTools management, including Dr.&#160;Egholm,Mr.&#160;Kim and Mr.&#160;Black.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July&#160;11, 2023, the SomaLogic Board
met (with Mr.&#160;Casdin participating for a portion of the meeting) with members of SomaLogic senior management and
representatives of PWP and Fenwick in attendance. During this meeting, the SomaLogic Board reviewed <B><FONT STYLE="text-decoration: underline">an
updated version of a long-range financial plan through 2027 (</FONT></B>the <B><FONT STYLE="text-decoration: underline">&#8220;</FONT></B>SomaLogic
Forecast<B><FONT STYLE="text-decoration: underline">&#8221;) that had been prepared by SomaLogic management, as described in the
section of this joint proxy statement/prospectus captioned &#8220;<I>The Merger &#8212; Summary of Certain SomaLogic Unaudited
Prospective Financial Information</I>&#8221;. This updated version reflected (i)&#160;changes in revenue growth assumptions,
providing for increased revenue in 2025 and 2026 and decreased revenue in 2024 and 2027 as compared to the proposed forecast
reviewed at the June&#160;6, 2023 meeting of the SomaLogic Board (and a compound annual growth rate of 23% over the five year period
as compared to 25% in the June&#160;6  forecast), (ii)&#160;increased margins due to a shift in revenue mix and increased
reliance on OEM partners, (iii)&#160;reduced operating expenses from 2024 through 2027, and (iv)&#160;increases in free cash flow in
each year. The somewhat reduced revenue reflected the reduced expenditures on operating expenses, which (together with the improved
margins) more than offset the effect of the reduced revenue, leading to increased profitability, generating positive free cash flow
by 2026, while the  forecast reviewed at the June&#160;6 meeting reflected negative free cash flow in each year through 2027.
This review was </FONT></B>followed by a closed board session from which Mr.&#160;Casdin was recused. During this closed board
session, the SomaLogic Transaction Committee members and representatives of PWP provided an update regarding the status of
discussions with Standard BioTools and the results of ongoing outreach to other potential counterparties.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">On July&#160;12, 2023, members of SomaLogic
management, including Mr.&#160;Taich and Chairman Ryan, gave an overview of SomaLogic, including SomaLogic&#8217;s business, operations,
management team, technology, intellectual property and the SomaLogic Forecast, to members of Standard BioTools management, including Dr.&#160;Egholm,
Mr.&#160;Kim and Mr.&#160;Black.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Between July&#160;12, 2023 and August&#160;2023,
members of Standard BioTools and SomaLogic management continued to discuss business diligence matters and synergy opportunities of a potential
combination.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July&#160;17, 2023, SomaLogic executed a mutual
confidential disclosure agreement with a party referred to as Counterparty B. This mutual confidential disclosure agreement included a
one-year mutual standstill provision that would terminate if, among other things, either party entered into an agreement providing for
a change of control transaction with a third party. The standstill was not subject to a &#8220;don&#8217;t ask, don&#8217;t waive&#8221;
provision. The standstill terminated upon the execution of the Merger Agreement between SomaLogic and Standard BioTools.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July&#160;19, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, and reviewed the status
of due diligence related to Standard BioTools, as well as interactions with other potential counterparties for a transaction. Mr.&#160;Taich
also noted that SomaLogic had engaged BCG and DeciBio Consulting to conduct a due diligence review of Standard BioTools&#8217; intellectual
property and technology. Representatives of PWP also reviewed with the SomaLogic Transaction Committee the status of PWP&#8217;s outreach
to other potential transaction counterparties, noting that a meeting was scheduled for July&#160;20, 2023 with Counterparty B and a call
was being scheduled with a party referred to as Counterparty C.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on July&#160;19, 2023, Chairman Ryan spoke
with the Chief Executive Officer of Counterparty A to discuss interest on the part of Counterparty A in a potential transaction, and the
Chief Executive Officer of Counterparty A indicated that Counterparty A was not interested in pursuing a potential transaction.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on July&#160;20, 2023, members of SomaLogic
senior management and representatives of PWP met with representatives of Counterparty B, and discussed SomaLogic&#8217;s business, operations,
management team, technology, intellectual property and the SomaLogic Forecast. On July&#160;27, 2023, Counterparty B indicated to PWP
that it would not propose an acquisition and was primarily interested in a minority investment as Counterparty B did not believe SomaLogic&#8217;s
financial profile would support a full acquisition of SomaLogic by Counterparty B.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July&#160;27, 2023, Mr.&#160;Taich held a call
with Counterparty C to discuss interest on the part of Counterparty C in a potential strategic transaction. Counterparty C indicated that
it was not interested in pursuing a potential strategic transaction as Counterparty C was focused on continuing its operations as an independent
company.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July&#160;28, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. Representatives of PWP
presented a preliminary financial analysis of the transaction proposed in the June&#160;16 Proposal and a sensitivity analysis based on
different growth scenarios for each company, and discussed potential synergies that might result from a combination with Standard BioTools,
and the SomaLogic Transaction Committee discussed the Standard BioTools Forecast.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on July&#160;28, 2023, representatives of
SomaLogic management, members of the SomaLogic Transaction Committee, representatives of PWP and BCG met with representatives of Standard
BioTools management to discuss Standard BioTools&#8217; financial performance in the second quarter of 2023 and certain other commercial
and financial diligence matters pertaining to Standard BioTools.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;1, 2023, the Standard BioTools Board
held a virtual meeting, in which members of Standard BioTools management and representatives of Centerview and Standard BioTools&#8217;
outside legal counsel, Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. (&#8220;Mintz&#8221;), discussed the status of the SomaLogic
proposal and other potential opportunities. Representatives from Mintz reiterated the fiduciary duties of directors under Delaware law
in the context of a strategic transaction, including the SomaLogic proposal, and the corporate governance practices being followed, as
described above.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;2, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, and reviewed the status
of due diligence conducted by SomaLogic with respect to Standard BioTools. PWP then reviewed the outreach to potential transaction counterparties,
providing an update on the 16 different counterparties, including Counterparty B and Counterparty C and the 14 other counterparties, including
parties referred to as Counterparty E, Counterparty F, and Counterparty G. Representatives of PWP noted that Counterparty B indicated
an interest in reviewing SomaLogic&#8217;s technology, but that Counterparty B&#8217;s interest was in a potential minority investment
and not an acquisition. Representatives of PWP also noted that Counterparty E and Counterparty F had not followed up to indicate interest
in exploring a transaction after PWP&#8217;s outreach. Representatives of PWP noted that Counterparty G was interested in an investment,
but not an acquisition, Counterparty A was not interested in pursuing a potential transaction and that there was no interest in discussions
from the remaining nine counterparties. Representatives of PWP also discussed each of the 16 potential counterparties from a strategic,
financial and potential synergy perspective. Other than as noted elsewhere, none of the potential counterparties contacted by PWP entered
into a confidential disclosure agreement in connection with this outreach.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;9, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. Representatives of PWP
reviewed with the SomaLogic Transaction Committee a preliminary financial analysis of the proposed transaction contemplated by the June&#160;16
Proposal and a sensitivity analysis based on different growth scenarios for each of SomaLogic and Standard BioTools.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Between August&#160;9 and
August&#160;12, 2023, representatives of PWP and Fenwick worked with members of the SomaLogic Transaction Committee to develop a counterproposal
to Standard BioTools&#8217; June&#160;16 Proposal, with a focus on the proposed exchange ratio, board composition and treatment of the
Series&#160;B Put Right.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;10, 2023, representatives of SomaLogic
management and Standard BioTools management held a call with representatives of PWP and Centerview in attendance, to discuss potential
synergies. The parties discussed potential revenue and cost synergies, cross-selling opportunities, customer base overlap, Standard BioTools&#8217;
global footprint, product pipeline synergies and other potential synergies.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;11, 2023, the SomaLogic Board met,
with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. Chairman Ryan reviewed the June&#160;16
Proposal with the SomaLogic Board. In addition, Chairman Ryan discussed SomaLogic&#8217;s due diligence with respect to Standard BioTools&#8217;
technology. Mr.&#160;Taich then discussed the strategic rationale for a business combination between SomaLogic and Standard BioTools.
This strategic rationale is described in further detail in the section of this joint proxy statement/prospectus captioned &#8220;<I>The
Merger &#8212; SomaLogic&#8217;s Reasons for the Merger; Recommendation of the SomaLogic Board</I>&#8221;. Representatives of PWP then
reviewed a preliminary financial analysis of the proposed transaction, as well as a preliminary analysis of the pro forma financial contribution
of the two parties to the combined company based on recent historical and projected results, a sensitivity analysis based on different
growth scenarios for each company and an illustrative analysis comparing the value to SomaLogic stockholders of the combined company (giving
effect to anticipated synergies) to SomaLogic on a standalone basis, under different revenue growth scenarios for each of Standard BioTools
and SomaLogic. Representatives of PWP and Mr.&#160;Taich then reviewed the outreach that had been conducted to other parties to assess
their potential interest in a transaction with SomaLogic, and the responses received from these parties. PWP noted 16 potential counterparties
were contacted about their interest in exploring a potential transaction with SomaLogic, of which 11 had declined to engage in discussions.
As of August&#160;11, 2023 four remaining potential counterparties had not yet confirmed or declined interest in discussions (though those
parties ultimately did not express interest in discussions). Counterparty B had engaged in discussions with SomaLogic with respect to
exploring a potential transaction but had previously indicated such interest was primarily in a minority investment<B><FONT STYLE="text-decoration: underline">, which the SomaLogic
Board did not consider to be in the best interests of SomaLogic or its stockholders given SomaLogic&#8217;s existing cash resources and
market valuation, which would make a minority investment unnecessary and dilutive, and the fact that a minority investment would not address
SomaLogic&#8217;s goal of increasing its scale, diversifying its services and products, and achieving synergies and operating improvements.</FONT></B>
The SomaLogic Board then discussed a potential counterproposal to the June&#160;16 Proposal in which Standard BioTools would issue 1.5200
shares of Standard BioTools Common Stock in exchange for each share of SomaLogic&#8217;s Common Stock (the high end of the range proposed
by Standard BioTools in the June&#160;16 Proposal). During an executive session in which no member of SomaLogic management was present,
the SomaLogic Board discussed governance and management considerations for the combined company, including the proposed composition of
the board of directors of the combined company, and the potential roles of Mr.&#160;Taich and of Shane Bowen in the combined company.
The SomaLogic Board then discussed the impact of the proposed merger on SomaLogic&#8217;s employees, including the effect of the proposed
transaction under SomaLogic&#8217;s employee change of control arrangements. Following further discussion, the SomaLogic Board directed
representatives of PWP to communicate to Standard BioTools that SomaLogic would be willing to further engage in discussions for a potential
transaction on revised terms of a fixed exchange ratio equal 1.5200 shares of Standard BioTools Common Stock for each share of SomaLogic
Common Stock (the high end of the range proposed by Standard BioTools in the June&#160;16 Proposal).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;12, 2023, representatives of PWP
contacted representatives of Centerview to present a counterproposal to the June&#160;16 Proposal (the &#8220;August&#160;12 Proposal&#8221;).
The August&#160;12 Proposal provided for (1)&#160;a fixed exchange ratio of 1.5200 shares of Standard BioTools Common Stock for each share
of SomaLogic Common Stock, resulting in a post-closing ownership split of approximately 36% for Standard BioTools stockholders and 64%
for SomaLogic stockholders on a fully diluted basis, (2)&#160;a combined company board consisting of seven members, with three directors
designated by Standard BioTools and four directors (including the Chairperson) designated by SomaLogic, (3)&#160;an executive team to
be led by Dr.&#160;Egholm serving as Chief Executive Officer and Mr.&#160;Black serving as Chief Financial Officer of the combined company
and (4)&#160;the removal of the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transactions. The August&#160;12 Proposal
implied a price per share to SomaLogic stockholders of $3.89, which represented a premium of approximately 67% based on SomaLogic&#8217;s
10-day VWAP as of August&#160;9, 2023. Representatives of Centerview indicated that Standard BioTools would review the proposal but would
need to complete additional due diligence before engaging in negotiations regarding the proposed exchange ratio.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;17, 2023, the Standard BioTools
Transaction Committee held a virtual meeting, in which members of Standard BioTools management, Carlos Paya, M.D., Ph.D., the Chairman
of the Board, and representatives of Centerview discussed the status of the SomaLogic proposal, including due diligence and other business
matters. <FONT STYLE="text-decoration: line-through">The</FONT><B><FONT STYLE="text-decoration: underline">Based on the results of its financial diligence and the relative movements in share prices of SomaLogic
and Standard BioTools, the </FONT></B>Standard BioTools <B><FONT STYLE="text-decoration: underline">Transaction </FONT></B>Committee resolved to make a counterproposal to SomaLogic
consisting of the following: (1)&#160;a fixed exchange ratio of 0.8469 shares of Standard BioTools Common Stock for each share of SomaLogic
Common Stock, resulting in a post-closing ownership split of approximately 50% for Standard BioTools&#8217; stockholders and 50% for SomaLogic&#8217;s
stockholders on a fully diluted basis, (2)&#160;a combined company board consisting of seven members, with three directors designated
by Standard BioTools (one of whom would serve as Chairperson and one of whom would be the Series&#160;B-2 Preferred Stock director designated
by Viking), three directors designated by SomaLogic and one director designated in accordance with the existing Series&#160;B-1 Certificate
of Designations, (3)&#160;Dr.&#160;Egholm would serve as Chief Executive Officer and Mr.&#160;Black would serve as Chief Financial Officer
of the combined company and (4)&#160;the retention of the Series&#160;B Put Right under its existing terms (the &#8220;August&#160;17
Proposal&#8221;). The August&#160;17 Proposal implied a price per share of $2.30, which represented a premium of approximately 9% based
on SomaLogic&#8217;s 10-day VWAP as of August&#160;17, 2023.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Following the meeting, at the direction of the
Standard BioTools Transaction Committee, representatives of Centerview held a telephone call with representatives of PWP to convey the
terms of the August&#160;17 Proposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;18, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, to review the August&#160;17
Proposal. After discussion, the SomaLogic Transaction Committee determined that the August&#160;17 Proposal did not provide sufficient
value to the SomaLogic stockholders, and instructed PWP to communicate to Standard BioTools, through Centerview, that SomaLogic would
not be willing to proceed with a transaction at the reduced exchange ratio proposed in the August&#160;17 Proposal and that, while SomaLogic
remained ready to engage if Standard BioTools were to propose improved terms, SomaLogic would pursue other strategic alternatives.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;18, 2023, representatives of PWP
spoke by telephone with representatives of Centerview and, as directed by the SomaLogic Transaction Committee, informed the representatives
of Centerview that the August&#160;17 Proposal was unacceptable to SomaLogic, and did not make a counterproposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;19, 2023, at the direction of Standard
BioTools management following discussion with members of the Standard BioTools Transaction Committee, representatives of Centerview contacted
representatives of PWP to convey an updated proposal from Standard, which increased the proposed exchange ratio to 0.9000 shares of Standard
BioTools Common Stock for each share of SomaLogic Common Stock, resulting in a post-closing ownership split of approximately 48% for Standard
BioTools&#8217; stockholders and 52% for SomaLogic&#8217;s stockholders on a fully diluted basis (the &#8220;August&#160;19 Proposal&#8221;).
The August&#160;19 Proposal implied a price per share of $2.42, which represented a premium of approximately 20% based on SomaLogic&#8217;s
10-day VWAP as of August&#160;18, 2023. Representatives of PWP promptly conveyed the August&#160;19 Proposal to members of SomaLogic senior
management and members of the SomaLogic Transaction Committee.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The SomaLogic Transaction Committee met again on
August&#160;23 and August&#160;25, 2023, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance,
to review the status of interactions with Standard BioTools. During the August&#160;25, 2023 meeting, representatives of PWP reviewed
a preliminary financial analysis of the August&#160;19 Proposal, as well as a sensitivity analysis based on different growth scenarios
for each company. PWP also reviewed an illustrative analysis comparing the value to SomaLogic stockholders of the combined company (giving
effect to anticipated synergies) to SomaLogic on a standalone basis, under different revenue growth scenarios for each of Standard BioTools
and SomaLogic. The SomaLogic Transaction Committee determined at each meeting not to engage in further discussions with Standard BioTools
on the basis of the August&#160;19 Proposal. Given the foregoing, <B><FONT STYLE="text-decoration: underline">at the meeting on August&#160;25, 2023, t</FONT></B>he SomaLogic
Transaction Committee and members of SomaLogic management discussed the viability of<B><FONT STYLE="text-decoration: underline">, and risks associated with, </FONT></B>a hypothetical
scenario for SomaLogic&#8217;s operations <B><FONT STYLE="text-decoration: underline">that was under development by SomaLogic management at the direction of the SomaLogic Board,</FONT></B>
including significant restructuring and reductions in expenses, de-prioritization of new product development, and increased reliance on
the collaboration with Illumina.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;28, 2023, representatives of Centerview
contacted representatives of PWP to inquire about the status of SomaLogic&#8217;s consideration of the August&#160;19 Proposal. Representatives
of PWP informed representatives of Centerview that the parties remained too far apart on the exchange ratio to continue working together
on a potential transaction.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Later that day, Dr.&#160;Egholm and Chairman Ryan
spoke by telephone about the status of the August&#160;19 Proposal. Chairman Ryan indicated to Dr.&#160;Egholm that SomaLogic and Standard
BioTools remained too far apart on the exchange ratio and that as a result, SomaLogic would not engage in further discussions with Standard
BioTools on the basis of the August&#160;19 Proposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On August&#160;29, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. The SomaLogic Transaction
Committee discussed a hypothetical scenario for SomaLogic&#8217;s operations in the event that it remained an independent company and
did not complete a transaction with Standard BioTools or any another counterparty<FONT STYLE="text-decoration: line-through">.</FONT> <B><FONT STYLE="text-decoration: underline">and provided feedback to SomaLogic
management on that scenario.</FONT></B> The SomaLogic Transaction Committee also reconfirmed its desire to not engage in further discussions
with Standard BioTools on the basis of the August&#160;19 Proposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;1, 2023, the SomaLogic Compensation
Committee met, with members of SomaLogic senior management and representatives of Fenwick and Pearl Meyers&#160;&amp; Partners LLC in
attendance. The SomaLogic Compensation Committee discussed, among other things, the change in control benefits for the SomaLogic executive
team.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On September&#160;6, 2023,
Dr.&#160;Egholm and Chairman Ryan spoke again by telephone regarding the terms of a potential transaction. Chairman Ryan again conveyed
to Dr.&#160;Egholm that that the August&#160;19 Proposal did not provide sufficient value to SomaLogic stockholders.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;7, 2023, the Standard BioTools
Transaction Committee held a virtual meeting, in which members of Standard BioTools management and Chairman Paya discussed the status
of the August&#160;19 Proposal. Following the meeting, Dr.&#160;Egholm spoke by telephone with Chairman Ryan to deliver a revised proposal,
as authorized by the Standard BioTools Transaction Committee, providing for a fixed exchange ratio of 1.0700 shares of Standard BioTools
Common Stock for each share of SomaLogic Common Stock, resulting in a post-closing ownership split of approximately 44% for Standard BioTools
stockholders and 56% for SomaLogic stockholders on a fully diluted basis and a combined company board and management composition consistent
with the August&#160;17 Proposal (the &#8220;September&#160;7 Proposal&#8221;). The September&#160;7 Proposal implied a price per share
of $3.22 for SomaLogic, which represented a premium of approximately 46% based on SomaLogic&#8217;s 10-day VWAP as of September&#160;6,
2023.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Later in the day on September&#160;7, 2023, following
the receipt of the September&#160;7 Proposal, the SomaLogic Transaction Committee met, with members of SomaLogic senior management and
representatives of PWP and Fenwick in attendance, to review the September&#160;7 Proposal. During the meeting, representatives of PWP
provided a preliminary financial analysis of the September&#160;7 Proposal. Following discussion, the SomaLogic Transaction Committee
directed Chairman Ryan to engage in negotiations with Dr.&#160;Egholm regarding the September&#160;7 Proposal and to negotiate the best
exchange ratio available (but no less than that proposed in the September&#160;7 Proposal) and reach agreement that a SomaLogic designee
would serve as the Chairperson of the combined board of directors.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Later that day, Chairman Ryan telephoned Dr.&#160;Egholm
to deliver a revised proposal consisting of the following: (1)&#160;a fixed exchange ratio of 1.11 shares of Standard BioTools Common
Stock for each share of SomaLogic Common Stock, resulting in a post-closing ownership split (based on each company&#8217;s capitalization
as of such date) of approximately 44% for Standard BioTools stockholders and 56% for SomaLogic stockholders on a fully diluted basis,
(2)&#160;the combined company&#8217;s board would consist of seven members, with three directors designated by each of Standard BioTools
(including the Series&#160;B-2 Preferred Stock director designated by Viking) and SomaLogic, and one director designated in accordance
with the existing Series&#160;B-1 Certificate of Designations, (3)&#160;one of SomaLogic&#8217;s designees would serve as the Chairperson
of the combined board of directors and (4)&#160;Dr.&#160;Egholm would serve as Chief Executive Officer and Mr.&#160;Black would serve
as Chief Financial Officer of the combined company (the &#8220;September&#160;7 Counterproposal&#8221;). The September&#160;7 Counterproposal
implied a price per share of $3.34 for SomaLogic, which represented a premium of approximately 51% based on SomaLogic&#8217;s 10-day VWAP
as of September&#160;6, 2023.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;8, 2023, Standard BioTools management
presented the September&#160;7 Counterproposal to the Standard BioTools Transaction Committee. The committee evaluated the September&#160;7
Counterproposal and, after discussing the financial and other terms of the September&#160;7 Counterproposal, the risks and benefits to
Standard BioTools and its stockholders of entering into a transaction with SomaLogic on the terms of the September&#160;7 Counterproposal
and considerations described under &#8220;<I>The Merger &#8212; Standard BioTools&#8217; Reasons for the Merger; Recommendation of the
Standard BioTools Board</I>&#8221; below, the committee recommended that Standard BioTools management pursue the negotiation of a transaction
with SomaLogic on the terms of the September&#160;7 Counterproposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;8, 2023, the SomaLogic Board
met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. Mr.&#160;Casdin had been provided
prior notice of, and the agenda for, this meeting, having been scheduled previously to discuss SomaLogic&#8217;s financial planning, but
did not participate in this meeting in light of its changed focus to be on the September&#160;7 Counterproposal. Mr.&#160;Taich presented
to the SomaLogic Board a draft of a hypothetical scenario for SomaLogic&#8217;s operations in the event that it remained an independent
company including significant restructuring and reductions in expenses, de-prioritization of new product development, and increased <B><FONT STYLE="text-decoration: underline">reliance
on the collaboration with Illumina. The SomaLogic Board discussed the assumptions underlying that hypothetical scenario, as well as the
risks associated with implementing it, including the risk that expense reductions would lead to a reduction in revenue and the risk of
</FONT></B>reliance on <FONT STYLE="text-decoration: line-through">the</FONT><B><FONT STYLE="text-decoration: underline">a single </FONT></B>collaboration <FONT STYLE="text-decoration: line-through">with Illumina.</FONT><B><FONT STYLE="text-decoration: underline">partner. The SomaLogic
Board did not believe this scenario to be attainable, or a viable basis for planning, as it reflected continued revenue growth notwithstanding
these cost reduction measures (albeit at a slower rate than the SomaLogic Forecast, with revenue growing at a compound annual growth rate
of 18% over the five year period). As a result, this hypothetical scenario was not further developed by SomaLogic management, or utilized
by the SomaLogic Board in its review and evaluation of the Merger. PWP was asked not to utilize this hypothetical scenario in its ultimate
analysis or its opinion. This hypothetical forecast is described in more detail in the section of this joint proxy statement/prospectus
captioned &#8220;<I>The Merger &#8212; Summary of Certain SomaLogic Unaudited Prospective Financial Information</I>&#8221;. </FONT></B>Representatives
of PWP then reviewed a preliminary financial analysis of the proposed transaction, as well as a sensitivity analysis based on different
growth scenarios for each company. The SomaLogic Board and representatives of PWP then discussed an illustrative analysis comparing the
value to SomaLogic stockholders of the combined company (giving effect to anticipated synergies) to SomaLogic on a standalone basis, under
different revenue growth scenarios for each of Standard BioTools and SomaLogic. In addition, representatives of PWP discussed the negotiations
that had occurred with Standard BioTools with respect to the proposed exchange ratio for the transaction as well as the other terms of
the September&#160;7 Counterproposal. The SomaLogic board also discussed the terms of the Series&#160;B Preferred Stock, including the
Series&#160;B Put Right. In addition, representatives of PWP reviewed with the SomaLogic Board the status of the outreach that had been
conducted to other potentially interested parties. As part of this update, the representatives of PWP noted that the four potential counterparties
from which PWP had not received a response as of the August&#160;11, 2023 board meeting had since confirmed that they were not interested
in a potential transaction. Representatives of PWP then left the meeting and a representative of Fenwick reviewed the fiduciary duties
of the SomaLogic Board in evaluating the proposed transaction with Standard BioTools. The SomaLogic Board discussed the potential risks
and benefits of the proposed transaction compared to SomaLogic&#8217;s stand-alone prospects and the impact of the proposed transaction
on SomaLogic&#8217;s employees, including the effect of the merger under SomaLogic&#8217;s employee change of control arrangements. The
SomaLogic Board directed SomaLogic management to pursue the negotiation of a transaction with Standard BioTools on the terms of the September&#160;7
Counterproposal. The SomaLogic Board also discussed the role of Cowen in the transaction, who, from time to time during August&#160;and
September&#160;2023, had discussions with members of SomaLogic senior management and members of the SomaLogic Transaction Committee regarding
the negotiations with Standard BioTools and the potential benefits of the proposed transaction with Standard BioTools, and authorized
SomaLogic to enter into a new engagement letter with Cowen reflecting this role.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Later in the day on September&#160;8, 2023, representatives
of Mintz and Fenwick met to discuss transaction planning and related workstreams. Representatives of Mintz informed representatives of
Fenwick that they were preparing a draft merger agreement for the proposed transaction. Representatives of Fenwick and Mintz also discussed
the potential process for the proposed transaction.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on September&#160;8, 2023, PWP and SomaLogic
entered into an engagement letter confirming the terms on which PWP was acting as financial advisor to SomaLogic.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Between September&#160;12, 2023 and September&#160;20,
2023, Standard BioTools and SomaLogic management and advisors to each company conducted site visits of SomaLogic&#8217;s research and
development, manufacturing and operations facility in Boulder, Colorado and Standard BioTools&#8217; research and development, manufacturing
and operations facilities in South San Francisco, California and Markham, Ontario, Canada and discussed, among other things, additional
synergy opportunities.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;13, 2023, Mintz sent an initial
draft of the merger agreement to Fenwick, consistent with the September&#160;7 Counterproposal and containing other terms customary for
similar transactions. The initial draft merger agreement provided for customary fiduciary rights of each company&#8217;s board of directors
to consider and react to any &#8220;Superior Proposal&#8221; received on an unsolicited basis following the execution of a definitive
merger agreement, subject to compliance with standard notice and informational rights. However, it required that the proposed transaction
be brought to the respective stockholders at a special meeting of stockholders for their consideration and for a vote of approval or not,
regardless of whether either board had exercised its right to change its recommendation on fiduciary grounds for a &#8220;Superior Proposal&#8221;
or an &#8220;Intervening Event&#8221;, as defined in the merger agreement (the &#8220;Force the Vote Provision&#8221;). The initial draft
merger agreement also contemplated the receipt of customary voting agreements supporting the proposed transaction from each company&#8217;s
executive officers and directors, Viking in its capacity as a stockholder of Standard BioTools, Casdin Capital in its capacity as a stockholder
in each company and Mr.&#160;Casdin individually in his capacity as a director of each company. The initial draft of the merger agreement
also proposed a termination fee payable by each party under certain customary circumstances in an amount equal to 4% of the applicable
party&#8217;s equity value.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;17, 2023, Fenwick sent to Mintz
a revised draft of the merger agreement. Among other revisions, the revised draft proposed a requirement to obtain an amendment to the
Series&#160;B-1 Certificate of Designations and the Series&#160;B-2 Certificate of Designations to remove the Series&#160;B Put Right
for any &#8220;Change of Control&#8221; transaction. The revised draft of the merger agreement also included obligations for Standard
BioTools to provide for equal treatment of Standard BioTools and SomaLogic employees following the closing and a termination fee under
certain customary circumstances in the amount of 3.5% of the applicable party&#8217;s equity value.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Beginning on September&#160;20, 2023, the respective
representatives and advisors of each of Standard BioTools and SomaLogic were granted access to the other company&#8217;s electronic data
room and commenced their confirmatory due diligence review. From September&#160;20, 2023 through October&#160;3, 2023, members of Standard
BioTools and SomaLogic management and each company&#8217;s respective representatives and advisors continued discussions, negotiations
and diligence surrounding the potential transaction and its terms, including meetings and telephone calls to discuss potential synergies,
commercial relationships, regulatory matters, intellectual property and due diligence matters and the composition of the management team
of the combined company. During this time, each of Standard BioTools and SomaLogic continued to make information available for the other
party in their respective electronic data rooms.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;20, 2023, Mintz sent to Fenwick
a revised draft of the merger agreement addressing many of the revisions requested by Fenwick but excluding the requirement that Standard
BioTools obtain from each of Casdin Capital and Viking an amendment of the Series&#160;B-1 Certificate of Designations and the Series&#160;B-2
Certificate of Designations to remove the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transaction. The revised draft
proposed a termination fee under certain specified circumstances of 3.9% of the applicable party&#8217;s equity value.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;21, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, and discussed the status
of due diligence and merger agreement negotiations, including the Series&#160;B Put Right and the revised draft of the merger agreement
received on September&#160;20, 2023. The members of SomaLogic senior management then left the meeting, and the SomaLogic Transaction Committee
discussed the role of members of SomaLogic senior management at the combined company, and the effect of the merger under SomaLogic&#8217;s
employee change of control arrangements.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;22, 2023, the Standard BioTools
Board held a virtual meeting, in which members of Standard BioTools management and representatives of Centerview and Mintz discussed the
status of the proposed transaction with SomaLogic. Members of Standard BioTools management and representatives of Centerview and Mintz
provided updates about the proposed transaction, including with respect to the companies&#8217; respective due diligence processes and
findings, the strategic fit of the two companies&#8217; business and technology, status of legal documentation and material terms, preparation
of transaction announcement communications and related matters. The Standard BioTools Board instructed management and its advisors to
continue discussions with SomaLogic concerning the proposed transaction.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;22, 2023, Mintz and Fenwick met
to discuss the September&#160;20 draft of the merger agreement, during which Fenwick proposed that the Force the Vote Provision in the
merger agreement be replaced with the right for either party to terminate the merger agreement in order to enter into a definitive agreement
for a Superior Proposal that did not result from a breach of the non-solicitation provisions of the merger agreement (the &#8220;Fiduciary
Termination Right&#8221;). Mintz and Fenwick also discussed whether Standard BioTools would be required to obtain from Casdin Capital
and Viking an amendment to the Series&#160;B-1 Certificate of Designations and the Series&#160;B-2 Certificate of Designations to remove
the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transaction and the termination fee payable under certain customary
circumstances.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Beginning on September&#160;25, 2023 representatives
of SomaLogic and Standard BioTools discussed the potential roles of Mr.&#160;Taich and Mr.&#160;Bowen in the combined company and negotiated
the terms of such roles through October&#160;1, 2023.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;25, 2023, representatives of
Mintz held a telephone call with the legal representatives of Casdin Capital. Given that Mr.&#160;Casdin had been excluded from the process,
including board meetings and updates, for corporate governance reasons, the purpose of the discussion was to confidentially inform Casdin
Capital&#8217;s legal representatives that the Standard BioTools Board was close to being in a position to approve a definitive merger
agreement with SomaLogic. Several corporate governance matters would need to be addressed in advance of any such approval. First, pursuant
to the Series&#160;B-1 Certificate of Designations, the consent of the Series&#160;B-1 Preferred Stock director (Mr.&#160;Casdin) was
required for such a transaction. For corporate governance reasons, the parties discussed the possibility of Casdin Capital formally waiving
the consent of the Series&#160;B-1 Preferred Stock director, thereby enabling Mr.&#160;Casdin to recuse himself from such vote. Second,
Mintz notified the legal representatives of Casdin Capital that the draft merger agreement contemplated obtaining customary voting agreements
supporting the transaction from Casdin Capital in its capacity as a stockholder in each company and Mr.&#160;Casdin individually in his
capacity as a director of each company. Third, Mintz relayed the position of SomaLogic that it was seeking to require Standard BioTools
to obtain from both Casdin Capital and Viking an agreement to amend the Series&#160;B-1 Certificate of Designations and the Series&#160;B-2
Certificate of Designations to remove the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transactions. The foregoing
discussion was had pursuant to the terms of an existing confidentiality agreement between Standard BioTools and Casdin Capital.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on September&#160;25, 2023, representatives
of Mintz held a telephone call with a legal representative of Viking to confidentially inform Viking that the Standard BioTools Board
was close to being in a position to approve a definitive merger agreement with SomaLogic. Mintz similarly notified Viking that the merger
agreement contemplated delivery by Viking, in its capacity as a stockholder of Standard BioTools, of a customary voting agreements supporting
the transaction and that SomaLogic was seeking an agreement from both Casdin Capital and Viking to amend the Series&#160;B-1 Certificate
of Designations and the Series&#160;B-2 Certificate of Designations to remove the Series&#160;B Put Right for any &#8220;Change of Control&#8221;
transactions. The foregoing discussion was had pursuant to the terms of an existing confidentiality agreement between Standard BioTools
and Viking.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On September&#160;25, 2023,
Fenwick sent to Mintz a revised draft of the merger agreement, which, among other changes, replaced the agreement&#8217;s Force the Vote
Provision with the Fiduciary Termination Right and proposed to remove the Series&#160;B Put Right for any &#8220;Change of Control&#8221;
transaction, and a termination fee under certain customary circumstances in the amount of 3.6% of the applicable party&#8217;s equity
value.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">From September&#160;26, 2023 until October&#160;3,
2023, Standard BioTools and SomaLogic, through their representatives at Mintz and Fenwick, respectively, negotiated the potential terms
of voting agreements with Casdin Capital and Viking. These agreements would obligate a holder of shares of capital stock of either company
to, among things, votes such shares in favor of the transaction and against competing proposals, and were being sought from the executive
officers, directors and affiliated stockholders of each company. During the first week of October&#160;2023, Casdin Capital informed Standard
BioTools and SomaLogic that neither it nor Mr.&#160;Casdin would enter into voting agreements with either company.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">During this same period, Standard BioTools and
SomaLogic, through their representatives at Mintz and Fenwick, respectively, continued discussions with legal representatives of Casdin
Capital and Viking regarding SomaLogic&#8217;s request that Casdin Capital and Viking both agree to remove the Series&#160;B Put Right
for any &#8220;Change of Control&#8221; transaction. On or about September&#160;27, 2023, legal representatives of Casdin Capital notified
Mintz that Casdin Capital would not agree to remove Casdin Capital&#8217;s Series&#160;B Put Right for any &#8220;Change of Control&#8221;
transaction. On or about September&#160;27, 2023, legal representatives of Viking notified Mintz that Viking would not agree to remove
Viking&#8217;s Series&#160;B Put Right for any &#8220;Change of Control&#8221; transaction.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;27, 2023, the SomaLogic Transaction
Committee met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance, and discussed the status
of due diligence and merger agreement negotiations, including the rejection by the holders of the Series&#160;B Preferred Stock of SomaLogic&#8217;s
request that such holders agree to remove the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transactions.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Between September&#160;28 and October&#160;1, 2023,
representatives of Fenwick and members of the SomaLogic Transaction Committee discussed whether SomaLogic could proceed with the proposed
transaction without the removal of the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transaction. On October&#160;1,
2023, a representative of Fenwick indicated to legal representatives of Casdin Capital that, while SomaLogic was considering whether it
could accept this position, SomaLogic would nonetheless request an acknowledgment from Casdin Capital and Viking that the Series&#160;B
Put Right would not be triggered by the proposed transaction, which acknowledgment Casdin Capital and Viking provided in writing to the
companies prior to the execution of the merger agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;28, 2023, Mintz sent to Fenwick
a revised draft of the merger agreement, which, among other changes, restored the Force the Vote Provision and proposed a compromise on
the size of the termination fee under certain customary circumstances of 3.75% of the applicable party&#8217;s equity value.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Representatives of Fenwick met later in the day
with Chairman Ryan to review key issues in the revised merger agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On September&#160;29, 2023, Fenwick sent to Mintz
a revised draft of the merger agreement. The revised draft of the merger agreement accepted the proposed termination fee under certain
specified circumstance of 3.75% of the applicable party&#8217;s equity value.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October&#160;1, 2023, Mintz sent to Fenwick
a revised draft merger agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October&#160;1, 2023, the SomaLogic Board met,
with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. Prior to the meeting, SomaLogic management
circulated to the SomaLogic Board the draft merger agreement and the related ancillary documents, including a summary of the material
terms of the proposed transaction. Chairman Ryan reviewed with the SomaLogic Board the status of negotiations between SomaLogic and Standard
BioTools and the due diligence conducted by SomaLogic and its representatives, including the review conducted by BCG and DeciBio Consulting
of Standard BioTools&#8217; intellectual property and technology. Representatives of PWP then reviewed with the SomaLogic Board the history
of the negotiations with Standard BioTools, reviewed a preliminary financial analysis of the proposed exchange ratio based on the SomaLogic
Forecast and a sensitivity analysis based on different growth scenarios for each company and discussed cost synergies that might be realized
as a result of the proposed transaction. In addition, representatives of PWP discussed the impact of the conversion terms of Standard&#8217;s
Series&#160;B Preferred Stock on the pro forma combined capitalization of the combined company. Mr.&#160;Taich and Chairman Ryan then
reviewed with the SomaLogic Board the preliminary third quarter financial results for each of SomaLogic and Standard BioTools. The SomaLogic
Board and representatives of Fenwick discussed the rejection by the holders of the Series&#160;B Preferred Stock of SomaLogic&#8217;s
request that such holders remove the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transactions, and discussed whether
SomaLogic could proceed with the proposed transaction without the removal of that right, and the SomaLogic Board determined that SomaLogic
could so proceed. A representative of Fenwick reviewed the fiduciary duties of the SomaLogic Board in connection with the proposed transaction
and discussed with the SomaLogic Board the terms of the draft merger agreement and draft voting agreements, indicating that an open issue
remained with respect to the inclusion of the Fiduciary Termination Right, and the SomaLogic Board directed representatives of Fenwick
to insist on the inclusion of such a provision. Representatives of Fenwick noted that Casdin Capital is a significant stockholder of each
of SomaLogic and Standard BioTools and the recusals described elsewhere herein to ensure the independence of deliberations. A representative
of Fenwick described a memorandum that PWP had provided to SomaLogic indicating that within the preceding three years, PWP had not been
engaged to provide advisory services to, nor received compensation from, SomaLogic or Standard BioTools (or Casdin Capital, Viking or
any of their respective portfolio companies), although a representative of PWP indicated that PWP anticipated that it may be engaged to
provide financial advisory services to a company that is controlled by Casdin Capital for which PWP may receive compensation. <FONT STYLE="text-decoration: line-through">Following
input by each</FONT><B><FONT STYLE="text-decoration: underline">Each </FONT></B>director <B><FONT STYLE="text-decoration: underline">then discussed the relationships, if any, between such director, Mr.&#160;Casdin
and Casdin Capital, which are described above, and, following the disclosure and consideration of the matters disclosed,</FONT></B> the SomaLogic
Board confirmed its view that none of the directors other than Mr.&#160;Casdin had a conflict of interest in respect of the proposed transaction.
<B><FONT STYLE="text-decoration: underline">After the Merger was announced, PWP was engaged to provide financial services to the company referenced during the October&#160;1
meeting. PWP expects to receive a customary fee should a transaction be consummated. Such fee will not exceed the fee PWP expects to receive
for its engagement as a financial advisor to SomaLogic in connection with the Merger. I</FONT></B>n addition, the SomaLogic Board reviewed
the corporate governance process followed by SomaLogic through its negotiations with Standard BioTools.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Following the meeting of the SomaLogic Board on
October&#160;1, 2023, representatives of Fenwick met with representatives of Mintz and insisted on the Fiduciary Termination Right. Fenwick
then sent a revised draft of the merger agreement reflecting the inclusion of the Fiduciary Termination Right, and representatives of
Fenwick and Mintz negotiated a proposed final version of the merger agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On the afternoon of October&#160;2, 2023, Standard
BioTools management circulated to the Standard BioTools Board the draft merger agreement and the related ancillary documents, including
a detailed summary memorandum of the material terms of the proposed transaction. Thereafter, on the afternoon of October&#160;2, 2023,
the Standard BioTools Board held a virtual meeting, together with members of Standard BioTools management and representatives of Mintz
and Centerview in attendance. The purpose was to present for approval the final terms of the merger agreement, subject to confirmation
of the timing of the SomaLogic Board approval. Representatives of Centerview reviewed with the Standard BioTools Board Centerview&#8217;s
financial analysis of the exchange ratio, and rendered to the Standard BioTools Board a preliminary oral opinion, at the request of the
Standard BioTools Board, that, as of such date and based upon and subject to various assumptions made, procedures followed, matters considered,
and qualifications and limitations upon the review undertaken in preparing its Fairness Opinion, the exchange ratio provided for pursuant
to the merger agreement was fair, from a financial point of view, to Standard BioTools. Centerview also reviewed for the Standard BioTools
Board its standard relationship disclosures, which had been provided in writing to Standard BioTools on September&#160;28, 2023, including
Centerview&#8217;s provision of financial advisory services to Casdin Capital as well as Viking in 2022 in connection with the 2022 Standard
BioTools Investment, which the Standard BioTools Board had previously determined would not impact Centerview&#8217;s ability to provide
independent advice with regard to the proposed transaction. The members of the Standard BioTools Board asked questions and discussed that
the matters to be voted on by the Standard BioTools Board included the adoption of the merger agreement and all other agreements, instruments,
certificates and documents required to be delivered in connection therewith, in each case substantially in the form presented to the Standard
BioTools Board, and the consummation of the transactions contemplated thereby, including the Standard BioTools Share Issuance and the
Standard BioTools Charter Amendment. Additionally, the Standard BioTools Board confirmed the terms of, and Standard BioTools entered into,
an engagement letter with Centerview to formalize the terms of Centerview&#8217;s ongoing engagement. The Standard BioTools Board concluded
to reconvene as necessary for formal approval.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October&#160;2, 2023, the SomaLogic Board met,
with members of SomaLogic senior management and representatives of Fenwick in attendance. Prior to the meeting, SomaLogic management circulated
to the SomaLogic Board the draft merger agreement and the related ancillary documents. Mr.&#160;Bowen (SomaLogic&#8217;s Chief Technology
Officer) provided the SomaLogic Board with his assessment of Standard BioTools&#8217; intellectual property and technology and the opportunities
for Standard BioTools&#8217; products. The SomaLogic Board then discussed the proposed transaction, and a representative of Fenwick informed
the SomaLogic Board that Casdin Capital had indicated that neither it nor Mr.&#160;Casdin would sign a voting agreement with respect to
the shares of SomaLogic or Standard BioTools capital stock held by them. Representatives of Fenwick also informed the SomaLogic Board
that Standard BioTools had accepted the inclusion of the Fiduciary Termination Provision.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Later on October&#160;2, the SomaLogic Board met
again, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. Representatives of Fenwick reviewed
with the SomaLogic Board the terms of the Series&#160;B Preferred Stock and noted that the proposed transaction would not constitute a
 &#8220;Change of Control&#8221; that would cause the Series&#160;B Put Right to become exercisable, but that Casdin Capital and Viking
had indicated that they would not remove the Series&#160;B Put Right for any &#8220;Change of Control&#8221; transaction. The SomaLogic
Board and representatives of Fenwick then discussed the implications of proceeding with the proposed transaction without a voting agreement
from Casdin Capital.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October&#160;3, the SomaLogic Board met, with
members of SomaLogic senior management and representatives of Fenwick and PWP in attendance. Chairman Ryan provided an update on the status
of negotiations with Standard BioTools.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On the morning of October&#160;4, 2023, Casdin
Capital delivered the Series&#160;B-1 director consent waiver to Standard BioTools. Immediately thereafter, the Standard BioTools Board
reconvened for a virtual meeting together with members of Standard BioTools management. Representatives of Centerview and Mintz were also
present. Representatives from Mintz again reiterated the fiduciary duties of the Standard BioTools Board. Representatives of Centerview
reviewed its updated financial analysis as presented at the October&#160;2, 2023 meeting of the Standard BioTools Board to reflect the
additional day of trading since the last meeting. The closing trading price of SomaLogic Common Stock on October&#160;3, 2023 was $2.30
and the 1.11 exchange ratio represented premium of approximately 30% to that price which would result in a post-closing ownership split
(based on each company&#8217;s capitalization as of such date) of approximately 43.20% for Standard BioTools stockholders and 56.80% for
SomaLogic stockholders on a fully diluted basis. At the request of the Standard BioTools Board, Centerview then delivered its oral opinion,
which was subsequently confirmed by delivery of a written opinion dated October&#160;4, 2023, that, as of such date and based on and subject
to various assumptions made, procedures followed, matters considered, and qualifications and limitations upon the review undertaking in
preparing its Fairness Opinion, the exchange ratio provided for pursuant to the merger agreement was fair, from a financial point of view,
to Standard BioTools. Following discussion, at the recommendation of the Standard BioTools Transaction Committee, the Standard BioTools
Board (other than Mr.&#160;Casdin who was not in attendance and had recused himself from the meeting), among other things, (1)&#160;determined
that the terms of the merger agreement and the Standard BioTools Share Issuance were fair to, and in the best interests of, Standard BioTools
and its stockholders, (2)&#160;approved and declared advisable, among other matters, the merger agreement, the Standard BioTools Share
Issuance, the Standard BioTools Charter Amendment and the other transactions contemplated by the merger agreement, (3)&#160;directed that
the Standard BioTools Share Issuance and the Standard BioTools Charter Amendment proposals, among other matters, be submitted to the Standard
BioTools stockholders for approval and (4)&#160;recommended that the Standard BioTools stockholders approve, among other matters, the
Standard BioTools Share Issuance and the Standard BioTools Charter Amendment.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">For more information about Centerview&#8217;s opinion,
see the section entitled &#8220;<I>The Merger &#8212; Opinion of Standard BioTools Financial Advisor</I>&#8221; beginning on page&#160;101
of this joint proxy statement/prospectus.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Also on the morning of October&#160;4, 2023, the
SomaLogic Board met, with members of SomaLogic senior management and representatives of PWP and Fenwick in attendance. The SomaLogic Board
discussed the proposed merger agreement and factors that the members of the SomaLogic Board considered in forming their view that SomaLogic&#8217;s
entry into the merger agreement was advisable, fair and in the best interests of SomaLogic and its stockholders, as described further
under the heading &#8220;<I>The Merger &#8212; SomaLogic&#8217;s Reasons for the Merger; Recommendation of the SomaLogic Board</I>&#8221;.
Representatives of Fenwick reviewed with the SomaLogic Board the resolutions proposed to be adopted by the SomaLogic Board at the meeting.
Representatives of PWP then reviewed with the SomaLogic Board PWP&#8217;s financial analyses, based on the SomaLogic Forecast, of the
exchange ratio which would result in a post-closing ownership split (based on each company&#8217;s capitalization as of such date) of
approximately 43.20% for Standard BioTools stockholders and 56.80% for SomaLogic stockholders on a fully diluted basis. In addition, representatives
of PWP reviewed the share price performance of SomaLogic and Standard BioTools during various periods compared to the exchange ratio and
reviewed an illustrative analysis comparing the value to SomaLogic stockholders of the combined company (giving effect to anticipated
synergies) to SomaLogic on a standalone basis, under different revenue growth scenarios for each of Standard BioTools and SomaLogic. Representatives
of PWP then rendered to the SomaLogic Board an oral opinion that, as of October&#160;4, 2023, and based upon and subject to the various
qualifications, assumptions, limitations and other matters set forth in the Fairness Opinion, the merger consideration to be received
by the holders of SomaLogic Common Stock (other than Standard, Casdin Capital and each of their respective affiliates) in the proposed
Merger pursuant to the Merger Agreement was fair, from a financial point of view, to the holders of SomaLogic Common Stock (other than
Standard, Casdin Capital and each of their respective affiliates). The oral opinion of PWP was subsequently confirmed by the delivery
of a written opinion delivered after the meeting, dated October&#160;4, 2023.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">For more information about PWP&#8217;s opinion,
see the section entitled &#8220;&#8212; <I>Opinion of SomaLogic&#8217;s Financial Advisor</I>&#8221; beginning on page&#160;113 of this
joint proxy statement/prospectus.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The SomaLogic Board then unanimously (other than
Mr.&#160;Casdin who was not in attendance and had recused himself from the meeting): (1)&#160;determined that the terms of the Merger
Agreement and the transactions contemplated by the Merger Agreement, including the Merger are advisable, fair to and in the best interests
of SomaLogic and its stockholders, (2)&#160;approved the Merger Agreement and the transactions contemplated by the Merger Agreement, including
the Merger, and declared the Merger Agreement advisable, (3)&#160;recommended that the SomaLogic stockholders adopt the Merger Agreement,
(4)&#160;directed that the Merger Agreement be submitted for consideration by the SomaLogic stockholders at the SomaLogic Special Meeting
and (5)&#160;deemed the closing of the transaction to be a &#8220;Change of Control&#8221; under SomaLogic&#8217;s Key Employee Severance
Plan such that the participants under the Key Employee Severance Plan will be eligible to receive the benefits in connection with a Change
of Control Termination in the event of a termination of employment, as described in the section of this joint proxy statement/prospectus
captioned &#8220;<I>The Merger &#8212; Interests of SomaLogic Directors and Executive Officers in the Merger &#8212; Employment and Severance
Agreements &#8212; SomaLogic Key Employee Severance Plan.</I>&#8221;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On the morning of October&#160;4, 2023, following
the Standard BioTools Board meeting and the SomaLogic Board meeting, Standard BioTools and SomaLogic executed the merger agreement. Voting
agreements were executed by Standard BioTools&#8217; and SomaLogic&#8217; respective directors (excluding Mr.&#160;Casdin) and officers
and Viking in its capacity as a stockholder of Standard BioTools.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Before the opening of Nasdaq trading on October&#160;4,
2023, Standard BioTools and SomaLogic issued a joint press release announcing entry into the Merger Agreement and held a joint conference
call to discuss the Merger.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On October&#160;19, 2023,
Standard BioTools and SomaLogic each filed their respective Premerger Notification and Report Forms under the HSR Act for review in connection
with the transactions contemplated by the merger agreement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Merger</I></B></FONT><B><I><FONT STYLE="background-color: white">&#8212;</FONT>SomaLogic&#8217;s Reasons for the
Merger; Recommendation of the SomaLogic Board,&#8221; the bulleted list on page&#160;98 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Symbol">&#183;</FONT></TD><TD><I>Potential Benefits of an Investment in the Combined Company: </I>The potential benefits to SomaLogic stockholders of the increased
scale and complementary products and customer bases of the combined company, including the following:</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD><I>Depth and experience of leadership team</I>: the fact that the combined company will be led by an experienced Board of Directors
and leadership team that leverages the deep expertise within both organizations, including Standard BioTools&#8217; Chief Executive Officer
and Chief Financial Officer who will have the same roles in the combined company;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD><I>Complementary <B><FONT STYLE="text-decoration: underline">and diversified </FONT></B>products and operations</I>: the fact that SomaLogic&#8217;s business and operations
complement those of Standard BioTools and that the transaction will create a combined company with a broader, more diverse portfolio of
life science tools, including a suite of three complementary, high throughput and data quality proteomic solutions;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
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end markets, and the potential for the combined company to become a leading provider of differentiated multi-omics tools for both biopharma
and academic customers, with products distributed in approximately 50 countries;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD><I>Cross-selling opportunities</I>: the potential for the combined company&#8217;s growth to benefit cross- selling opportunities,
with SomaLogic&#8217;s presence in the biopharmaceutical research setting and Standard BioTools&#8217; academic research footprint complementing
each other;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD><I>Cost synergies and operating efficiencies</I>: the anticipated cost synergies and operating efficiency resulting from the elimination
of redundant general and administrative costs, consolidation of manufacturing and integration of Standard BioTools&#8217; large-enterprise
operating expertise, and from the increased scale of the combined company; <FONT STYLE="text-decoration: line-through">and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD><I><FONT STYLE="text-decoration: line-through">Potential for accelerated path to profitability</FONT><B><FONT STYLE="text-decoration: underline">Increased Scale Leading to Accelerated Path to Profitability</FONT></B></I><B><FONT STYLE="text-decoration: underline">:</FONT></B>
the SomaLogic Board&#8217;s belief that the combined company&#8217;s <FONT STYLE="text-decoration: line-through">path to profitability will be accelerated by the </FONT>increased
scale <FONT STYLE="text-decoration: line-through">of</FONT><B><FONT STYLE="text-decoration: underline">will lead to more efficient allocation of infrastructure and administrative costs across </FONT></B>the combined
company <B><FONT STYLE="text-decoration: underline">and reduce dependence on individual revenue sources, accelerating the combined company&#8217;s path to profitability and
market positioning in respect of larger competitors; and</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD><B><I><FONT STYLE="text-decoration: underline">Diversified sources of revenue</FONT></I><FONT STYLE="text-decoration: underline">: the fact that the combined company would have a more diversified revenue base
that will be less concentrated than SomaLogic would have on a standalone basis.</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Symbol">&#183;</FONT></TD><TD><I>Challenges and Risks Faced by SomaLogic on a Standalone Basis. </I>The potential challenges facing SomaLogic if it were to continue
on a standalone basis, including:</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD>the anticipated need for SomaLogic to make significant investments in continued research and development of new products and services,
which may not be successful and the potential need to raise additional capital to fund commercialization plans for services and products,
expand investments in research and development and commercialize new products and applications;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
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academic, governmental and other research institutions and any reduction in spending could limit demand for our services and products
and adversely affect SomaLogic&#8217;s business, results of operations, financial conditions and prospects; <FONT STYLE="text-decoration: line-through">and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
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partnership with Illumina<B><FONT STYLE="text-decoration: underline">; and</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

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cuts and workforce reduction) and grow its revenue base to achieve increases in equity value, and the recognition that the needed reduction
in cash expenditures would severely hamper SomaLogic&#8217;s ability to increase its revenue.</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>Under the heading &#8220;The Merger&#8212;SomaLogic&#8217;s
Reasons for the Merger; Recommendation of the SomaLogic Board,&#8221; the following was added following the second bullet on page&#160;101,
as potential risks weighed by the SomaLogiBoard in entering into the Merger Agreement:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
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its operations and opportunities, and the return to common stockholders in the event of a change of control of the combined company at
a price lower than the preferred stock conversion price;</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Merger&#8212;Summary of Centerview Financial Analysis&#8212;</I></B></FONT><B><I>Standalone Standard BioTools Financial
Analysis&#8212; Selected Comparable Public Companies Analysis,&#8221; the first table on page&#160;105 is replaced with the following:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&#160;</P>

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  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><FONT STYLE="text-decoration: underline">Note: Negative EV / Revenue multiples not included in average
and median.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Merger&#8212;Summary of Centerview Financial Analysis&#8212;</I></B></FONT><B><I>Standalone Standard BioTools Financial
Analysis&#8212; Selected Comparable Public Companies Analysis,&#8221; the third full paragraph on page&#160;105 is amended and restated
as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Centerview applied the Standard BioTools EV / revenue
multiple reference range to Standard BioTools&#8217; calendar year 2024 estimated revenue, as set forth in the Standard BioTools Forecasts,
to derive a range of implied enterprise values for Standard BioTools. Centerview added to the range of implied enterprise values <B><FONT STYLE="text-decoration: underline">$61
million to $66 million, </FONT></B>the value of Standard BioTools&#8217; net cash and cash equivalents as of August&#160;31, 2023, <B><FONT STYLE="text-decoration: underline">which
includes the implied settlement value of the 2019 Convertible Notes, a</FONT></B>s set forth in the Standard BioTools Internal Data, to derive
a range of implied equity values for Standard BioTools. Centerview then divided these implied equity values by <B><FONT STYLE="text-decoration: underline">approximately 163
million, </FONT></B>the number of fully-diluted shares of Standard BioTools Common Stock as of September&#160;27, 2023, including Standard
BioTools&#8217; Series&#160;B preferred stock on an as- converted basis, as set forth in the Standard BioTools Internal Data, to derive
a range of implied values per share of Standard BioTools Common Stock. The results of this analysis are summarized below:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
second paragraph under the heading &#8220;The Merger&#8212;Summary of Centerview Financial Analysis&#8212;</I></B></FONT><B><I>Standalone
Standard BioTools Financial Analysis&#8212;Discounted Cash Flow Analysis,&#8221; on pages&#160;105 and 106 is amended and restated as
follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In performing this analysis, Centerview calculated
the estimated present value of the unlevered free cash flows of Standard BioTools reflected in the Standard BioTools Forecasts for the
last four months ending December&#160;31, 2023 and the years ending December&#160;31, 2024 through December&#160;31, 2033. The terminal
value of Standard BioTools at the end of the forecast period was estimated by Centerview using an exit-basedEV / adjusted EBITDA multiple
of 18.0x to 22.0x as applied to adjusted EBITDA (excluding stock-based compensation) of Standard BioTools for the year ending December&#160;31,
2033. The unlevered free cash flows (including the terminal value) of Standard BioTools during the forecast period were discounted to
present value using discount rates ranging from 15.0% to 18.0%, with this range determined based on Centerview&#8217;s analysis of Standard
BioTools&#8217; weighted average cost of capital. Based on its discounted cash flow analysis, Centerview then calculated a range of implied
enterprise values of Standard BioTools. When calculating this range, Centerview added <B><FONT STYLE="text-decoration: underline">$41 million to $66 million, </FONT></B>Standard
BioTools&#8217; net cash and cash equivalents as of August&#160;31, 2023, <B><FONT STYLE="text-decoration: underline">which includes the implied settlement value of the 2019
Convertible Notes, a</FONT></B>s set forth in the Standard BioTools Internal Data, to derive a range of implied equity values of Standard
BioTools. Centerview then divided this range of implied equity values by <B><FONT STYLE="text-decoration: underline">approximately 163 million, </FONT></B>the number of fully-diluted
shares of Standard BioTools Common Stock as of September&#160;27, 2023, including Standard BioTools&#8217; Series&#160;B preferred stock
on an as-converted basis, as set forth in the Standard BioTools Internal Data, to derive a range of implied values per share of Standard
BioTools Common Stock as of August&#160;31, 2023 of $2.90 to$4.20. Centerview then compared the results of this analysis to the closing
price of shares of Standard BioTools Common Stock on October&#160;3, 2023 of $2.70.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
third paragraph and subsequent table under the heading &#8220;The Merger&#8212;Summary of Centerview Financial Analysis&#8212;</I></B></FONT><B><I>Standalone
Company Financial Analysis&#8212; Selected Comparable Public Companies Analysis,&#8221; on page&#160;106 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Using publicly available information obtained from
SEC filings, publicly available Wall Street research, other publicly available information and closing stock prices as of October&#160;3,
2023, as well as the SomaLogic Forecasts, Centerview calculated, for each selected comparable company, and for SomaLogic, multiples including
the EV / revenue multiple. The multiples for the selected comparable companies are <FONT STYLE="text-decoration: line-through">shown below:</FONT><B><FONT STYLE="text-decoration: underline">in the table above.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
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  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left">&#160;</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-decoration: line-through; width: 10%; text-align: right">3.9x</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left">&#160;</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%">&#160;</TD>
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  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Merger&#8212;Summary of Centerview Financial Analysis&#8212;</I></B></FONT><B><I>Standalone Company Financial Analysis&#8212;
Selected Comparable Public Companies Analysis,&#8221; the last paragraph on page&#160;106 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Centerview applied the SomaLogic EV / revenue multiple
reference range to SomaLogic&#8217;s calendar year 2024 estimated revenue, as set forth in the SomaLogic Forecasts, to derive a range
of implied enterprise values for SomaLogic. Centerview added to the range of implied enterprise values <B><FONT STYLE="text-decoration: underline">$455 million, </FONT></B>the
value of SomaLogic&#8217;s net cash and cash equivalents as of August&#160;31, 2023, as set forth in the SomaLogic Internal Data, to derive
a range of implied equity values for SomaLogic. Centerview then divided these implied equity values by <B><FONT STYLE="text-decoration: underline">approximately 193 million,
</FONT></B>the number of fully-diluted shares of SomaLogic Common Stock as of September&#160;27, 2023, as set forth in the SomaLogic Internal
Data, to derive a range of implied values per share of Company Common Stock. The results of this analysis are summarized below:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
paragraph under the heading &#8220;The Merger&#8212;Summary of Centerview Financial Analysis&#8212;</I></B></FONT><B><I>Standalone Company
Financial Analysis&#8212;Discounted Cash Flow Analysis,&#8221; on page&#160;107 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Centerview also performed a discounted cash flow
analysis of SomaLogic. In performing this analysis, Centerview calculated the estimated present value of the unlevered free cash flows
of SomaLogic reflected in the SomaLogic Forecasts for the last four months ending December&#160;31, 2023 and the years ending December&#160;31,
2024 through December&#160;31, 2033. The terminal value of SomaLogic at the end of the forecast period was estimated by Centerview using
an exit-based EV / adjusted EBITDA multiple of 18.0x to 22.0x as applied to adjusted EBITDA (excluding stock-based compensation) of <FONT STYLE="text-decoration: line-through">Standard
BioTools</FONT><B><FONT STYLE="text-decoration: underline">SomaLogic </FONT></B>for the year ending December&#160;31, 2033. The unlevered free cash flows (including the terminal
value) of SomaLogic during the forecast period were discounted to present value using discount rates ranging from 15.0% to 18.0%, with
this range determined based on Centerview&#8217;s analysis of SomaLogic&#8217;s weighted average cost of capital. Based on its discounted
cash flow analysis, Centerview then calculated a range of implied enterprise values of SomaLogic. When calculating this range, Centerview
added <B><FONT STYLE="text-decoration: underline">$455 million, </FONT></B>the value of SomaLogic&#8217;s net cash and cash equivalents as of August&#160;31, 2023, as set forth
in the SomaLogic Internal Data, to derive a range of implied equity values of SomaLogic. Centerview then divided this range of implied
equity values by <B><FONT STYLE="text-decoration: underline">approximately 193 million, </FONT></B>the number of fully-diluted shares of Company Common Stock as of September&#160;27,
2023, as set forth in the SomaLogic Internal Data, to derive a range of implied values per share of Company Common Stock as of August&#160;31,
2023 of $2.90 to $3.80. Centerview then compared the results of this analysis to the closing price of shares of Company Common Stock on
October&#160;3, 2023 of $2.30.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>Under the heading &#8220;The Merger&#8212;Summary
of PWP&#8217;s Analyses&#8212;Selected Publicly-Traded Companies Analysis,&#8221; the first table on page&#160;117 is amended and restated
as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
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    <TD STYLE="font: bold 10pt Times New Roman, Times, Serif; text-align: left">&#160;</TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif; text-align: right">2.0x</TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif; text-align: left">&#160;</TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif">&#160;</TD>
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Devices Inc.</FONT></TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif">&#160;</TD>
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  </TABLE>


<P STYLE="margin: 0">&#160;</P>

<P STYLE="margin: 0"></P>

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<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">(1)&#160;Nautilus Biotechnology,&#160;Inc. is pre-revenue in 2023.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><B><FONT STYLE="text-decoration: underline">(2)&#160;Enterprise Values, 2023E and
2024E revenues are represented in millions of U.S. dollars.</FONT></B></P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&#160;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>Under the heading &#8220;The Merger&#8212;
Summary of PWP&#8217;s Analyses&#8212;Discounted Cash Flow Analysis,&#8221; the bulleted list on page&#160;118 is amended and restated
as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD>calculated the present value of the estimated standalone unlevered free cash flows (calculated as net operating profit after tax,
plus depreciation and amortization, minus capital expenditures, and adjusting for changes in net working capital and certain other cash
flow items set forth in the SomaLogic Forecasts and Standard BioTools Forecasts) that each of SomaLogic and Standard BioTools was forecasted
to generate for 2023E through 2033E using discount rates ranging from 12.5% to 13.5% for Standard BioTools and 14.75% to 18.25% for SomaLogic,
in each case based on estimates of the weighted average cost of capital of each company <B><FONT STYLE="text-decoration: underline">as derived using the Capital Asset Pricing
Model (&#8220;CAPM&#8221;);</FONT></B> <FONT STYLE="text-decoration: line-through">and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #231f20"><FONT STYLE="font-family: Symbol">&#183;</FONT></FONT></TD><TD>adding terminal values of each of Standard BioTools and SomaLogic using perpetuity growth rates ranging from 2.5% to 3.5% for Standard
BioTools and 4.0% to 5.0% for SomaLogic and the <FONT STYLE="text-decoration: line-through">same discount rates for each of</FONT><B><FONT STYLE="text-decoration: underline">weighted average cost of capital
ranges for each as set forth above. The terminal values in 2033 were calculated $889 &#8211; $1,284 million for </FONT></B>SomaLogic and
<B><FONT STYLE="text-decoration: underline">$1,530 -$1,867 million for S</FONT></B>tandard BioTools <FONT STYLE="text-decoration: line-through">as set forth above.</FONT><B><FONT STYLE="text-decoration: underline">;</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Symbol; font-size: 10pt">&#183;</FONT></TD><TD><B><FONT STYLE="text-decoration: underline">for the purposes of calculating SomaLogic&#8217;s implied equity value per share PWP assumed that SomaLogic had approximately
$458 million in cash and equivalents, zero debt, $2 million in net non-operating liabilities and approximately 188.7193 million common
shares outstanding, 2.7 million restricted stock units and 25.7 million options with a weighted average exercise price of $5.33 outstanding.
Diluted shares were calculated using the treasury stock method for options based on implied equity values per share implied; and</FONT></B></TD></TR></TABLE>

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<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Symbol; font-size: 10pt">&#183;</FONT></TD><TD><B><FONT STYLE="text-decoration: underline">for the purposes of calculating Standard BioTools&#8217; implied equity value per share, PWP assumed that Standard BioTools
had $132 million in cash and equivalents, $66 million in debt (including $55 million of debt convertible to equity at $2.90 per share
and $0.6 million of debt convertible to equity at $55.94 per share), 75.2 million Series&#160;B Convertible Preferred Stock units with
a $3.40 per unit liquidation preference and approximately 79.5 million common shares outstanding, 7.6 million restricted and performance
stock units and 9.2 million options with a weighted average exercise price of $3.63 outstanding. Diluted shares were calculated using
the treasury stock method for options and convertible debt based and the Series&#160;B Convertible Preferred Stock was incorporated at
the greater of its liquidation preference or as converted value in determining implied equity value per share.</FONT></B></TD></TR></TABLE>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Merger&#8212;Summary of PWP&#8217;s Analyses&#8212;</I></B></FONT><B><I> Additional Financial Analyses&#8212; Research
Analyst Price Targets,&#8221; the last paragraph on page&#160;119 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">For the information of the SomaLogic Board and
for reference purposes only, PWP observed the most recent publicly available price targets <B><FONT STYLE="text-decoration: underline">on FactSet Research Systems </FONT></B>for
SomaLogic and Standard BioTools Common Stock published by all Wall Street research analysts. PWP assumed that such price targets reflected
each research analyst&#8217;s estimate of the 12-month future public market trading price per share of SomaLogic Common Stock and Standard
BioTools Common Stock and discounted them to present value using a discount rate of approximately 16.50% for SomaLogic Common Stock and
13.00% for Standard BioTools Common Stock, which rates reflect the midpoints of SomaLogic&#8217;s and Standard BioTools&#8217; weighted
average cost of capital, respectively, as derived using the Capital Asset Pricing Model as of October&#160;2, 2023. PWP noted that the
analysts&#8217; discounted price targets for all Wall Street research analysts ranged from $2.15 to $6.06 per share for SomaLogic Common
Stock and was $3.58 per share for Standard BioTools Common Stock. The price targets published by Wall Street research analysts do not
necessarily reflect current market trading prices for shares of SomaLogic Common Stock or Standard BioTools Common Stock and these estimates
are subject to uncertainties, including the future financial performance of SomaLogic and Standard BioTools and future financial market
conditions.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
second paragraph under the heading &#8220;The Merger&#8212;Summary of PWP&#8217;s Analyses&#8212;</I></B></FONT><B><I>General&#8221; on
page&#160;121 is amended and restated as follows:</I></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PWP
and its affiliates also engage in securities trading and brokerage, asset management activities, equity research and other financial services.
Except in connection with its engagement as financial advisor to SomaLogic in connection with the Merger, during the two-year period prior
to the date of the opinion, no material relationship existed between PWP and its affiliates, on the one hand, and Standard BioTools, SomaLogic,
Casdin or any of their respective affiliates, on the other hand, pursuant to which compensation was received by PWP or its affiliates.
<FONT STYLE="text-decoration: line-through">Notwithstanding the foregoing, it is currently expected that </FONT>PWP</FONT> <FONT STYLE="text-decoration: line-through">may become</FONT> <B><FONT STYLE="text-decoration: underline">has been </FONT></B>engaged
to provide financial advisory services to a company that is controlled by Casdin for which PWP <FONT STYLE="text-decoration: line-through">may</FONT><B><FONT STYLE="text-decoration: underline">expects to </FONT></B>receive
<FONT STYLE="text-decoration: line-through">compensation</FONT><B><FONT STYLE="text-decoration: underline">a customary fee should a transaction be consummated. Such fee will not exceed the fee PWP expects to
receive for its engagement as a financial advisor to SomaLogic in connection with the Merger. PWP previously disclosed this potential
engagement in its opinion that was delivered to the SomaLogic Board on October&#160;4, 2023.</FONT></B> In the ordinary course of its business
activities, PWP and its affiliates may at any time hold long or short positions, and may trade or otherwise effect transactions, for its
own account or the accounts of customers or clients, in (1)&#160;debt, equity or other securities (or related derivative securities) or
financial instruments (including bank loans or other obligations) of SomaLogic, Standard BioTools or any of their respective affiliates
and (2)&#160;any currency or commodity that may be material to the parties or otherwise involved in the Merger and/or the other matters
contemplated by the Merger Agreement.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Merger&#8212;</I></B></FONT><B><I> Summary of Certain SomaLogic Unaudited Prospective Financial Information,&#8221;
the paragraph above the table on page&#160;123 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table presents summary selected unaudited financial information for SomaLogic for the calendar years 2023 through 2033 prepared
by SomaLogic management in connection with SomaLogic&#8217;s evaluation of the Merger, with the years 2028 through 2033 based on the forecast
through 2027 prepared by SomaLogic management, and an extrapolation of those trends through 2033 based on the long term rates as directed
by SomaLogic management<B><FONT STYLE="text-decoration: underline">, and is a summary of the SomaLogic Forecast referred to under the caption &#8220;<I>&#8212; Background of
the Merger</I>&#8221; beginning on page&#160;76 of this joint proxy statement/prospectus</FONT></B></FONT><B><FONT STYLE="text-decoration: underline"> (</FONT></B>dollars in millions):</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;The Merger&#8212;</I></B></FONT><B><I> Summary of Certain SomaLogic Unaudited Prospective Financial Information,&#8221;
the following was added below the table on page&#160;123:</I></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">In addition, at meetings of the SomaLogic
Board on September&#160;8, 2023, and at meetings of the SomaLogic Transaction Committee on August&#160;25 and 29, 2023, the SomaLogic
Board and the SomaLogic Transaction Committee, respectively, discussed a draft of a hypothetical scenario for SomaLogic&#8217;s operations
through 2027 in the event that it remained an independent company including significant restructuring and reductions in expenses, de-prioritization
of new product development, and increased reliance on the collaboration with Illumina.The SomaLogic Board did not believe this scenario
to be attainable or a viable basis for planning, as it reflected continued revenue growth notwithstanding these cost reduction measures
(albeit at a slower rate than unaudited financial projections set forth above) with revenue growing at a compound annual growth rate of
18% over the five year period). As a result, this hypothetical scenario was not further developed by SomaLogic management, nor provided
to Standard BioTools or any other parties, nor utilized by the SomaLogic Board in its review and evaluation of the Merger.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">In connection with SomaLogic&#8217;s consideration
of the Merger, SomaLogic management also developed an adjusted set of Standard BioTools projections for the calendar years 2023 through
2033, which are presented in the following table (the &#8220;SomaLogic Management Adjusted Standard BioTools Projections&#8221;). The
SomaLogic Management Adjusted Standard BioTools Projections were based on certain financial information provided to SomaLogic management
by Standard BioTools for the calendar years 2023 through 2027, which SomaLogic management then adjusted to reflect assumptions around
growth and margins beyond the 2027 years provided by Standard BioTools (dollars in millions):</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

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  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(1)</B></FONT></TD><TD><B><FONT STYLE="text-decoration: underline">Earnings before interest and taxes (&#8220;EBIT&#8221;), as presented herein, reflects gross profit, less operating expenses.</FONT></B></TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="text-decoration: underline double; font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(2)</B></FONT></TD><TD><B><FONT STYLE="text-decoration: underline">Unlevered Free Cash Flow, as presented herein, is a non-GAAP financial measure that reflects EBIT, less tax expense, plus depreciation,
less capital expenditures, less changes in working capital and other adjustments to exclude certain non-cash items.</FONT></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">Additionally, in view of complexities and
uncertainties in projecting tax expense and net operationg loss utilization, as well as assessing potential limitations for each company,
as a simplifying assumption SomaLogic management assumed that each company would continue to not incur tax expense during the ten-year
projections horizon as a result of continued future net operating loss generation and existing attributes. At the direction of SomaLogic&#8217;s
senior management, PWP&#8217;s financial analysis reflected an assumption that each company would be fully taxable after year ten in determining
terminal values.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Under
the heading &#8220;</I></B></FONT><B><I>The Merger&#8212;Interests of Standard BioTools Directors and Executive Officers in the Merger&#8212;Relationships
with Casdin Capital,&#8221; the last paragraph on page&#160;124 is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Standard
BioTools. </I></FONT>Both Casdin Capital and Viking (including through their respective affiliated entities) hold Series&#160;B Preferred
Stock of Standard BioTools. Casdin Capital holds Series&#160;B-1 Preferred Stock that has voting power equal to approximately 15% of the
combined Standard BioTools Common Stock and Series&#160;B Preferred Stock voting power as a single class (after giving effect to a &#8220;voting
blocker&#8221; provision in the Series&#160;B-1 Preferred Stock Certificate of Designations), and approximately <FONT STYLE="text-decoration: line-through">24.3</FONT><B><FONT STYLE="text-decoration: underline">24.2%</FONT></B>
of the combined Standard BioTools Common Stock and Series&#160;B Preferred Stock voting power as a single class in the event that Casdin
Capital were to exercise its rights to eliminate this &#8220;voting blocker&#8221; (as it is entitled to do upon advance notice pursuant
to the Series&#160;B-1 Preferred Stock Certificate of Designations). The same provision exists for the Series&#160;B-2 Preferred Stock
with respect to Viking. Further, subject to maintaining certain minimum ownership levels, the Series&#160;B-1 Certificate of Designations
and the Series&#160;B-2 Certificate of Designations allow each of Casdin Capital and Viking to designate one director to the Standard
BioTools Board, and each such director is entitled to consent rights over certain actions, including an M&amp;A transaction like the proposed
transaction between Standard BioTools and SomaLogic. The Series&#160;B-1 director is Mr.&#160;Casdin. The Series&#160;B-1 Preferred Stock
and Series&#160;B-2 Preferred Stock also have a right to require redemption of the Series&#160;B-1 Preferred Stock and Series&#160;B-2
Preferred Stock, respectively, in the event of a &#8220;Change of Control&#8221; as defined in the Certificates of Designations of the
Series&#160;B Preferred Stock (the &#8220;Series&#160;B Put Right&#8221;). For more information about the rights of the Series&#160;B-1
Preferred Stock and Series&#160;B-2 Preferred Stock, see the section entitled &#8220;<I>Description of Capital Stock</I>&#8221; beginning
on page&#160;179 of this joint proxy statement/prospectus.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><I>The section &#8220;The Merger&#8212;Litigation
Relating to the Merger,&#8221; beginning on page&#160;135, is amended to insert the following paragraph following the first paragraph
of the section:</I></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><B><FONT STYLE="text-decoration: underline">On December&#160;14, 2023, two purported SomaLogic
stockholders filed a complaint against SomaLogic, the members of the SomaLogic Board, Standard BioTools, and Casdin Capital LLC in the
Court of Chancery for the State of Delaware. The complaint asserts claims for breach of fiduciary duty and aiding and abetting breach
of fiduciary duty, including because the defendants allegedly caused the filing with the SEC on November&#160;14, 2023 of a materially
deficient registration statement on Form&#160;S-4. Among other remedies, the plaintiffs seek to enjoin an upcoming stockholder vote on
the proposed Merger. SomaLogic and Standard BioTools are reviewing the complaint and have not yet formally responded to it.</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I><FONT STYLE="text-decoration: underline">T</FONT></I></B></FONT><B><I>he
second paragraph in the section &#8220;The Merger&#8212;Litigation Relating to the Merger,&#8221; on page&#160;135, is amended and restated
as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">SomaLogic also has received correspondence from
law firms claiming to represent other purported stockholders making similar demands relating to alleged material deficiencies in the registration
statement on Form&#160;S-4. SomaLogic also has received <FONT STYLE="text-decoration: line-through">two</FONT><B><FONT STYLE="text-decoration: underline">four </FONT></B>demand letters from purported stockholders
seeking inspection of SomaLogic&#8217;s books and records pursuant to Section&#160;220 of the DGCL.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>On
page&#160;179, the paragraph under the heading &#8220;</I></B></FONT><B><I>Description of Capital Stock&#8212;Authorized Capital Shares&#8221;
is amended and restated as follows:</I></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The Standard BioTools authorized capital stock
consists of 400,000,000 shares of Standard BioTools Common Stock and 10,000,000 shares of Series&#160;B Preferred Stock. Out of the Series&#160;B
Preferred Stock, as of the Standard BioTools Record Date, 128,267 shares have been designated Series&#160;B-1 Preferred Stock and 128,267
shares have been designated Series&#160;B-2 Preferred Stock. As the Standard BioTools Record Date, there were <FONT STYLE="text-decoration: line-through">83,162,205</FONT><B><FONT STYLE="text-decoration: underline">80,030,193
</FONT></B>shares of Standard BioTools Common Stock outstanding, 127,780 shares of Series&#160;B-1 Preferred Stock outstanding and 127,779
shares of Series&#160;B-2 Preferred Stock outstanding.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>On
page&#160;180, the first paragraph under the heading &#8220;</I></B></FONT><B><I>Description of Capital Stock&#8212;Preferred Stock&#8212;Series&#160;B-1
Preferred Stock&#8212;Conversion and Redemption Rights&#8221; is amended and restated as follows:</I></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Subject to certain limitations contained in the
Series&#160;B-1 Certificate of Designations, <B><FONT STYLE="text-decoration: underline">each share of t</FONT></B>he Series&#160;B-1 Preferred Stock is convertible at the option
of the holders thereof at any time into a number of shares of Standard BioTools Common Stock equal to the Conversion Rate (as defined
in the Series&#160;B-1 Certificate of Designations)<B><FONT STYLE="text-decoration: underline">, which is equal to <FONT STYLE="background-color: white">294.1176 shares of
Standard BioTools Common Stock per share of Series&#160;B-1 Preferred Stock, equivalent to a conversion price of $3.40</FONT>, subject
to certain adjustments.</FONT></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>On
page&#160;183, the first paragraph under the heading &#8220;</I></B></FONT><B><I>Description of Capital Stock&#8212;Preferred Stock&#8212;Series&#160;B-2
Preferred Stock&#8212;Conversion and Redemption Rights&#8221; is amended and restated as follows:</I></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Subject to certain limitations contained in the
Series&#160;B-2 Certificate of Designations, <B><FONT STYLE="text-decoration: underline">each share of t</FONT></B>he Series&#160;B-2 Preferred Stock is convertible at the option
of the holders thereof at any time into a number of shares of Standard BioTools Common Stock equal to the Conversion Rate (as defined
in the Series&#160;B-2 Certificate of Designations), <FONT STYLE="text-decoration: line-through">in each case</FONT><B><FONT STYLE="text-decoration: underline">which is equal to 294.1176 shares of Standard
BioTools Common Stock per share of Series&#160;B-2 Preferred Stock, equivalent to a conversion price of $3.40, </FONT></B>subject to certain
adjustments, provided that Viking and its affiliates shall not be permitted to voluntarily convert shares of its Series&#160;B-2 Preferred
Stock if, as a result of such conversion, Viking, together with its affiliates, would beneficially own more than 9.5% of the total number
of shares of Standard BioTools Common Stock issued and outstanding after giving effect to such conversion (the &#8220;Cap&#8221;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>On
page&#160;187, the text in the &#8220;</I></B></FONT><B><I>Comparision of Stockholder Rights&#8221; table under the &#8220;Rights of Standard
BioTools Stokcholders&#8221; column, on the &#8220;Outstanding Capital Stock&#8221; row, is amended and restated as follows:</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">As of the Standard BioTools Record Date, Standard
BioTools had <FONT STYLE="text-decoration: line-through">83,162,205</FONT><B><FONT STYLE="text-decoration: underline">80,030,193 </FONT></B>shares of Standard BioTools Common Stock issued and outstanding, 127,780
shares of Series&#160;B-1 Preferred Stock issued and outstanding and 127,779 shares of Series&#160;B-2 Preferred Stock issued and outstanding.</P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><B>Additional Information and Where to Find
It</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">In connection with the Merger and required
stockholder approval, Standard BioTools filed with the SEC the Registration Statement, which was declared effective by the SEC on December&nbsp;1,
2023. The Registration Statement includes a definitive joint proxy statement of Standard BioTools and SomaLogic and also constitutes a
final prospectus of Standard BioTools. The definitive joint proxy statement was mailed or otherwise made available to stockholders of
Standard BioTools and SomaLogic on or about December&nbsp;4, 2023. Standard BioTools&rsquo; and SomaLogic&rsquo;s stockholders are urged
to carefully read the joint proxy statement/prospectus (including all amendments, supplements and any documents incorporated by reference
therein) and other relevant materials filed or to be filed with the SEC and in their entirety because they contain important information
about the Merger and the parties to the Merger. Investors and stockholders may obtain free copies of these documents and other documents
filed with the SEC at its website at http://www.sec.gov. In addition, investors may obtain free copies of the documents filed with the
SEC by Standard BioTools at http://investors.standardbio.com or contacting Standard BioTools&rsquo; Investor Relations department at investors@standardbio.com
or at https://investors.somalogic.com or by contacting SomaLogic Investor Relations at investors@somalogic.com.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><B>Participants in the Solicitation</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">Standard BioTools, SomaLogic and each of their
respective executive officers and directors may be deemed to be participants in the solicitation of proxies from Standard BioTools&rsquo;
stockholders with respect to the Merger. Information about Standard BioTools&rsquo; directors and executive officers, including their
ownership of Standard BioTools&rsquo; securities, is set forth in the joint proxy statement/prospectus, Standard BioTools&rsquo; proxy statement for its 2023 Annual Meeting of Stockholders, which was filed with the SEC on April&nbsp;28, 2023, Current Reports on Form&nbsp;8-K,
which were filed with the SEC on May&nbsp;3, 2023, May&nbsp;15, 2023, June&nbsp;16, 2023 and July&nbsp;28, 2023, and Standard BioTools&rsquo;
other filings with the SEC. Information concerning SomaLogic&rsquo;s directors and executive officers, including their ownership of SomaLogic
securities, is set forth in the joint proxy statement/prospectus, SomaLogic&rsquo;s proxy statement for its 2023 Annual Meeting of Stockholders, which was filed with the SEC on April&nbsp;25, 2023, Current Reports on Form&nbsp;8-K, which were filed with the SEC on June&nbsp;6, 2023,
as amended on June&nbsp;14, 2023, June&nbsp;9, 2023, October&nbsp;4, 2023 and December 12, 2023, and SomaLogic&rsquo;s other filings with
the SEC. Investors may obtain more detailed information regarding the direct and indirect interests of Standard BioTools and its respective
executive officers and directors in the Merger, which may be different than those of Standard BioTools&rsquo; stockholders generally,
by reading the definitive proxy statements regarding the Merger, which have been filed with the SEC. These documents are available free
of charge at the SEC&rsquo;s website at www.sec.gov, at http://investors.standardbio.com or by contacting Standard BioTools&rsquo; Investor
Relations department at investors@standardbio.com or at https://investors.somalogic.com or by contacting SomaLogic Investor Relations
at investors@somalogic.com.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><B>No Offer or Solicitation</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">This supplement and the information contained
herein shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities
in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities
laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section&nbsp;10
of the Securities Act of 1933, as amended.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><B>Forward-Looking Statements</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">This supplement contains &ldquo;forward-looking
statements&rdquo; within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements are based upon current plans,
estimates and expectations of the management of Standard BioTools and SomaLogic that are subject to various risks and uncertainties that
could cause actual results to differ materially from such statements, many of which are beyond the control of Standard BioTools and SomaLogic.
All statements other than statements of historical fact (including statements containing the words &ldquo;believes,&rdquo; &ldquo;plans,&rdquo;
 &ldquo;anticipates,&rdquo; &ldquo;expects,&rdquo; &ldquo;estimates&rdquo; and similar expressions) are statements that could be deemed
forward-looking statements, although not all forward-looking statements contain these identifying words. Readers should not place undue
reliance on these forward-looking statements. Forward-looking statements may include statements regarding the expected timing of the closing
of the Merger; the ability of the parties to complete the Merger considering the various closing conditions; and any assumptions underlying
any of the foregoing. Statements regarding future events are based on the parties&rsquo; current expectations and are necessarily subject
to associated risks related to, among other things, (i)&nbsp;the risk that the Merger may not be completed in a timely manner or at all,
which may adversely affect Standard BioTools&rsquo; and SomaLogic&rsquo;s businesses and the price of their respective securities; (ii)&nbsp;uncertainties
as to the timing of the consummation of the Merger and the potential failure to satisfy the conditions to the consummation of the Merger,
including obtaining stockholder and regulatory approvals; (iii)&nbsp;the Merger may involve unexpected costs, liabilities or delays; (iv)&nbsp;the
effect of the announcement, pendency or completion of the Merger on the ability of Standard BioTools or SomaLogic to retain and hire key
personnel and maintain relationships with customers, suppliers and others with whom Standard BioTools or SomaLogic does business, or on
Standard BioTools&rsquo; or SomaLogic&rsquo;s operating results and business generally; (v)&nbsp;Standard BioTools&rsquo; or SomaLogic&rsquo;s
respective businesses may suffer as a result of uncertainty surrounding the Merger and disruption of management&rsquo;s attention due
to the Merger; (vi)&nbsp;the outcome of any legal proceedings related to the Merger or otherwise, or the impact of the Merger thereupon;
(vii)&nbsp;Standard BioTools or SomaLogic may be adversely affected by other economic, business and/or competitive factors, (viii)&nbsp;the
occurrence of any event, change or other circumstances that could give rise to the termination of the Merger agreement and the Merger;
(ix)&nbsp;restrictions during the pendency of the Merger that may impact Standard BioTools&rsquo; or SomaLogic&rsquo;s ability to pursue
certain business opportunities or strategic transactions; (x)&nbsp;the risk that Standard BioTools or SomaLogic may be unable to obtain
governmental and regulatory approvals required for the Merger, or that required governmental and regulatory approvals may delay the consummation
of the Merger or result in the imposition of conditions that could reduce the anticipated benefits from the Merger or cause the parties
to abandon the Merger; (xi)&nbsp;risks that the anticipated benefits of the Merger or other commercial opportunities may otherwise not
be fully realized or may take longer to realize than expected; (xii)&nbsp;the impact of legislative, regulatory, economic, competitive
and technological changes; (xiii)&nbsp;risks relating to the value of the Standard BioTools shares to be issued in the Merger; (xiv)&nbsp;the
risk that post-closing integration of the Merger may not occur as anticipated or the combined company may not be able to achieve the benefits
expected from the Merger, as well as the risk of potential delays, challenges and expenses associated with integrating the combined company&rsquo;s
existing businesses; (xv)&nbsp;exposure to inflation, currency rate and interest rate fluctuations, as well as fluctuations in the market
price of Standard BioTools&rsquo; and SomaLogic&rsquo;s traded securities; (xvi)&nbsp;the lingering effects of the COVID-19 pandemic on
Standard BioTools&rsquo; and SomaLogic&rsquo;s industry and individual companies, including on counterparties, the supply chain, the execution
of research and development programs, access to financing and the allocation of government resources; (xvii)&nbsp;the ability of Standard
BioTools or SomaLogic to protect and enforce intellectual property rights; and (xviii)&nbsp;the unpredictability and severity of catastrophic
events, including, but not limited to, acts of terrorism or outbreak of war or hostilities, as well as Standard BioTools&rsquo; and SomaLogic&rsquo;s
response to any of the aforementioned factors. Therefore, actual results may differ materially and adversely from those expressed in any
forward-looking statements. For information regarding other related risks, see the &ldquo;Risk Factors&rdquo; section of Standard BioTools&rsquo;
most recent quarterly report on Form&nbsp;10-Q filed with the SEC on November&nbsp;7, 2023, on its most recent annual report on Form&nbsp;10-K filed with the SEC on March&nbsp;14, 2023 and in Standard BioTools&rsquo; other filings with the SEC, as well as the &ldquo;Risk Factors&rdquo;
section of SomaLogic&rsquo;s most recent quarterly report on Form&nbsp;10-Q filed with the SEC on November&nbsp;8, 2023, on its most recent
annual report on Form&nbsp;10-K filed with the SEC on March&nbsp;28, 2023 and in SomaLogic&rsquo;s other filings with the SEC. The risks
and uncertainties described above and in the SEC filings cited above are not exclusive and further information concerning Standard BioTools
and SomaLogic and their respective businesses, including factors that potentially could materially affect their respective businesses,
financial conditions or operating results, may emerge from time to time. Readers are urged to consider these factors carefully in evaluating
these forward-looking statements, and not to place undue reliance on any forward-looking statements. Any such forward-looking statements
represent management&rsquo;s reasonable estimates and beliefs as of the date of this supplement. While Standard BioTools and SomaLogic
may elect to update such forward-looking statements at some point in the future, they disclaim any obligation to do so, other than as
may be required by law, even if subsequent events cause their views to change.</P>

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