<SEC-DOCUMENT>0001104659-19-050494.txt : 20190918
<SEC-HEADER>0001104659-19-050494.hdr.sgml : 20190918
<ACCEPTANCE-DATETIME>20190918090955
ACCESSION NUMBER:		0001104659-19-050494
CONFORMED SUBMISSION TYPE:	FWP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190918
DATE AS OF CHANGE:		20190918

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PTC THERAPEUTICS, INC.
		CENTRAL INDEX KEY:			0001070081
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				043416587
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		FWP
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-220151
		FILM NUMBER:		191098422

	BUSINESS ADDRESS:	
		STREET 1:		100 CORPORATE COURT
		CITY:			SOUTH PLAINFIELD
		STATE:			NJ
		ZIP:			07080-2449
		BUSINESS PHONE:		9082227000

	MAIL ADDRESS:	
		STREET 1:		100 CORPORATE COURT
		CITY:			SOUTH PLAINFIELD
		STATE:			NJ
		ZIP:			07080-2449

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PTC THERAPEUTICS INC
		DATE OF NAME CHANGE:	19980909

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PTC THERAPEUTICS, INC.
		CENTRAL INDEX KEY:			0001070081
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				043416587
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		FWP

	BUSINESS ADDRESS:	
		STREET 1:		100 CORPORATE COURT
		CITY:			SOUTH PLAINFIELD
		STATE:			NJ
		ZIP:			07080-2449
		BUSINESS PHONE:		9082227000

	MAIL ADDRESS:	
		STREET 1:		100 CORPORATE COURT
		CITY:			SOUTH PLAINFIELD
		STATE:			NJ
		ZIP:			07080-2449

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PTC THERAPEUTICS INC
		DATE OF NAME CHANGE:	19980909
</SEC-HEADER>
<DOCUMENT>
<TYPE>FWP
<SEQUENCE>1
<FILENAME>a19-18683_4fwp.htm
<DESCRIPTION>FWP
<TEXT>


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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Filed Pursuant to Rule&nbsp;433</font></p>
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Issuer Free Writing Prospectus dated September&nbsp;18, 2019</font></p>
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Relating to Preliminary Prospectus Supplement dated September&nbsp;17, 2019</font></p>
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registration Statement No.&nbsp;333-220151</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PTC THERAPEUTICS,&nbsp;INC.</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">2,475,248 Shares of Common Stock</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">The following information relates only to the common stock of the Issuer described below and should be read together with the preliminary prospectus supplement dated </font></i><a href="http://www.sec.gov/Archives/edgar/data/1070081/000104746919005269/a2239710z424b5.htm"><i>September&nbsp;17, 2019</i></a><i> and the accompanying prospectus dated </i><a href="http://www.sec.gov/Archives/edgar/data/1070081/000104746917005377/a2233080zs-3asr.htm"><i>August&nbsp;24, 2017</i></a><i>, including the documents incorporated by reference therein. The following information supplements and updates the information contained in the preliminary prospectus supplement and accompanying prospectus.</i></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Issuer:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">PTC Therapeutics,&nbsp;Inc., a Delaware   corporation</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Ticker / Exchange:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">PTCT / The Nasdaq Global Select Market</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Title of Securities:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Common stock, par value $0.001 per share, of the   Issuer (&#147;Common Stock&#148;)</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Size:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Approximately $100.0 million (or approximately $115.0   million if the underwriter exercises its option to purchase additional shares   in full).</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Shares Offered and Sold:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2,475,248 shares of Common Stock (or 2,846,535   shares of Common Stock if the underwriter exercises its option to purchase   additional shares in full) (the &#147;Shares&#148;).</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Last Reported Sale Price of   Common Stock on The Nasdaq Global Select Market on September&nbsp;17, 2019:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$43.32</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Price to Public:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$40.40 per share</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Pricing Date:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">September&nbsp;18, 2019</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Trade Date:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">September&nbsp;18, 2019</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Settlement Date:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">September&nbsp;20, 2019</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">CUSIP:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">69366J200</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Concurrent Convertible Note   Offering:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Concurrently with this offering of common stock,   we are offering to persons reasonably believed to be qualified institutional   buyers, pursuant to an offering memorandum in a separate private offering   exempt from registration under Rule&nbsp;144A of the Securities Act of 1933,   as amended, $250,000,000 aggregate principal amount of our 1.50% Convertible   Senior Notes due 2026 (the &#147;2026 notes&#148;), or a total of $287,500,000   aggregate principal amount of notes if the initial purchaser in the   concurrent Convertible Note Offering exercises in full its option to purchase   additional notes (the &#147;Convertible Note Offering&#148;). The 2026 notes will   initially be convertible into 19.0404 shares of common stock per $1,000   principal amount of notes (subject to adjustment in certain circumstances),   which represents an initial conversion price of approximately $52.52 per   share of common stock. Upon conversion of a 2026 note, we will satisfy our   conversion obligation by paying or delivering, as the case may be, cash,   shares of our common stock or a combination of cash and shares of our common   stock, at our election. We cannot assure you that the concurrent Convertible   Note Offering will be completed or, if completed, on what terms it will be   completed. The offering of Shares hereby is not contingent upon the   consummation of the concurrent Convertible Note Offering, and the concurrent   Convertible Note Offering is not contingent upon the consummation of the   offering of Shares hereby.</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in .25in .0001pt 0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Sole Bookrunning Manager:</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Credit Suisse Securities (USA) LLC</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">The Issuer has filed a registration statement (including a prospectus dated August&nbsp;24, 2017 and a preliminary prospectus supplement dated September&nbsp;17, 2019) with the Securities and Exchange Commission, or SEC, for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement, the preliminary prospectus supplement and other documents the Issuer has filed with the SEC for more complete information about the Issuer and this offering. You may get these documents for free by visiting the SEC&#146;s website at&nbsp;www.sec.gov. Copies of the prospectus and the preliminary prospectus supplement may be obtained by contacting: Credit Suisse Securities (USA) LLC at Credit Suisse Prospectus Department, Eleven Madison Avenue, New York, New York 10010, 1-800-221-1037, e-mail: newyork.prospectus@credit-suisse.com.</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Any disclaimers or other notices that may appear below are not applicable to this communication and should be disregarded. Such disclaimers or other notices were automatically generated as a result of this communication being sent via Bloomberg or another email system.</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">2<a name="PB_2_132617_9420"></a></p>
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