<SEC-DOCUMENT>0001140361-21-032461-index.html : 20210924
<SEC-HEADER>0001140361-21-032461.hdr.sgml : 20210924
<ACCEPTANCE-DATETIME>20210924160213
ACCESSION NUMBER:		0001140361-21-032461
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20210924
DATE AS OF CHANGE:		20210924

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:		211277260

	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>brhc10029248_424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: brhc10029248_424b3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image0.jpg
<TEXT>
Document 2 - file: image0.jpg

</DOCUMENT>
</SEC-DOCUMENT>