<SEC-DOCUMENT>0001104659-21-094608-index.html : 20210722
<SEC-HEADER>0001104659-21-094608.hdr.sgml : 20210722
<ACCEPTANCE-DATETIME>20210722060250
ACCESSION NUMBER:		0001104659-21-094608
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		16
FILED AS OF DATE:		20210722
DATE AS OF CHANGE:		20210722

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Quantum-Si Inc
		CENTRAL INDEX KEY:			0001816431
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				851388175
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-257676
		FILM NUMBER:		211105897

	BUSINESS ADDRESS:	
		STREET 1:		530 OLD WHITFIELD STREET
		CITY:			GUILFORD
		STATE:			CT
		ZIP:			06437
		BUSINESS PHONE:		(203) 458-7100

	MAIL ADDRESS:	
		STREET 1:		530 OLD WHITFIELD STREET
		CITY:			GUILFORD
		STATE:			CT
		ZIP:			06437

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HighCape Capital Acquisition Corp.
		DATE OF NAME CHANGE:	20200629
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>tm2120157-6_424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: tm2120157-6_424b3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>lg_quantum-4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: lg_quantum-4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2120157d1-pht_dogma4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2120157d1-pht_dogma4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>tm2120157d1-pht_analys4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2120157d1-pht_analys4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>tm2120157d1-pht_legacy4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: tm2120157d1-pht_legacy4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>tm2120157d1-pht_lanch4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: tm2120157d1-pht_lanch4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>tm2120157d1-pht_carbon4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: tm2120157d1-pht_carbon4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>tm2120157d1-pc_blood4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: tm2120157d1-pc_blood4clr.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>tm2120157d1-pc_cell4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: tm2120157d1-pc_cell4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>tm2120157d1-pht_platinm4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: tm2120157d1-pht_platinm4clr.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>tm2120157d1-pht_wafer4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: tm2120157d1-pht_wafer4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>tm2120157d1-pht_cloud4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: tm2120157d1-pht_cloud4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>tm2120157d1-lc_inten4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: tm2120157d1-lc_inten4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>tm2120157d1-pht_zoome4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: tm2120157d1-pht_zoome4clr.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>tm2120157d1-pht_commer4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: tm2120157d1-pht_commer4clr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>tm2120157d1-pht_product4clr.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: tm2120157d1-pht_product4clr.jpg

</DOCUMENT>
</SEC-DOCUMENT>