What does CUSIP 74765K105 represent in this 13F holders report?

CUSIP 74765K105 is the security identifier for QSI - Quantum-Si Inc - Common Stock used to aggregate holder disclosures.

How many institutions held QSI - Quantum-Si Inc - Common Stock in Q3 2023?

94 institutional investors reported QSI - Quantum-Si Inc - Common Stock for Q3 2023. Use the holders table for investor-level position and value details.

Quantum-Si Inc - Common Stock (QSI)

CUSIP: 74765K105

Q3 2023 13F Holders as of 30 Sep 2023

Type / Class: Equity / Common Stock
Shares outstanding: 182,694,067
Total 13F shares: 54,518,149
Share change: +10,678,962
Total reported value: $90,500,891
Put/Call ratio: 43%
Price per share: $1.66
Number of holders: 94
Value change: +$17,074,897
Number of buys: 52
Number of sells: 31

Quarterly Holders Quick Answers

What is CUSIP 74765K105?
CUSIP 74765K105 identifies QSI - Quantum-Si Inc - Common Stock in SEC institutional holdings data.

Need full ownership history?
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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2023
Previous quarter: Q2 2023

Recent filing periods for CUSIP 74765K105:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of QSI - Quantum-Si Inc - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
ARK Investment Management LLC	13F	Company	7%	12,754,531	$22,830,610	—	30 Jun 2023	13F
2012 JMR Trust Common LLC	3/4/5	10%+ Owner	— class O/S missing	12,480,108	$22,089,791	—	10 Jun 2021	3/4/5
James B. Tananbaum	3/4/5	Director	— class O/S missing	8,424,317	$14,911,041	—	10 Jun 2021	3/4/5
BlackRock Finance, Inc.	13F	Company	3.9%	7,101,978	$12,712,540	—	30 Jun 2023	13F
VANGUARD GROUP INC	13F	Company	2.8%	5,155,004	$9,227,456	—	30 Jun 2023	13F
GLENVIEW CAPITAL MANAGEMENT, LLC	13F	Company	1.3%	2,415,990	$4,324,622	—	30 Jun 2023	13F
STATE STREET CORP	13F	Company	1.1%	2,083,293	$3,729,094	—	30 Jun 2023	13F
John Viii Stark	3/4/5	Chief Executive Officer, Director	— class O/S missing	1,977,368	$3,499,941	—	10 Jan 2022	3/4/5
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1%	1,858,730	$3,327,126	—	30 Jun 2023	13F
Sumitomo Mitsui Trust Group, Inc.	13F	Company	0.89%	1,626,985	$2,912,303	—	30 Jun 2023	13F
Amova Asset Management Americas, Inc.	13F	Company	0.89%	1,626,985	$2,896,033	—	30 Jun 2023	13F
Foresite Capital Management V, LLC	13F	Company	0.51%	924,404	$1,654,683	—	30 Jun 2023	13F
DEERFIELD MANAGEMENT COMPANY, L.P.	13F	Company	— mixed-class rows	1,130,833 mixed-class rows	$1,504,225	—	30 Jun 2023	13F
NORTHERN TRUST CORP	13F	Company	0.43%	778,842	$1,394,127	—	30 Jun 2023	13F
Fosun International Ltd	13F	Company	0.41%	743,935	$1,331,644	—	30 Jun 2023	13F
GUGGENHEIM CAPITAL LLC	13F	Company	0.39%	709,035	$1,269,172	—	30 Jun 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.26%	466,070	$834,265	—	30 Jun 2023	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.2%	356,700	$638,493	—	30 Jun 2023	13F
Bank of New York Mellon Corp	13F	Company	0.19%	355,764	$636,818	—	30 Jun 2023	13F
Matthew Dyer	3/4/5	Chief Business Officer	— class O/S missing	333,393	$590,106	—	13 Jun 2022	3/4/5
Knollwood Investment Advisory, LLC	13F	Company	0.16%	300,000	$537,000	—	30 Jun 2023	13F
Nuveen Asset Management, LLC	13F	Company	0.16%	289,181	$517,634	—	30 Jun 2023	13F
MORGAN STANLEY	13F	Company	0.14%	263,097	$470,944	—	30 Jun 2023	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.14%	261,577	$468,223	—	30 Jun 2023	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.12%	223,256	$400,000	—	30 Jun 2023	13F
Clearline Capital LP	13F	Company	0.12%	211,900	$379,301	—	30 Jun 2023	13F
Neumann Advisory Hong Kong Ltd	13F	Company	0.11%	192,857	$345,000	—	30 Jun 2023	13F
Invesco Ltd.	13F	Company	0.1%	177,947	$318,525	—	30 Jun 2023	13F
RHUMBLINE ADVISERS	13F	Company	0.08%	138,752	$248,366	—	30 Jun 2023	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.07%	125,243	$224,185	—	30 Jun 2023	13F
D.A. DAVIDSON & CO.	13F	Company	0.07%	125,000	$223,750	—	30 Jun 2023	13F
GENERAL AMERICAN INVESTORS CO INC	13F	Company	0.07%	119,250	$213,458	—	30 Jun 2023	13F
CITADEL ADVISORS LLC	13F	Company	0.06%	107,111	$191,729	—	30 Jun 2023	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.05%	93,182	$166,796	—	30 Jun 2023	13F
Shay Capital LLC	13F	Company	0.05%	83,698	$149,819	—	30 Jun 2023	13F
JPMORGAN CHASE & CO	13F	Company	0.04%	81,925	$146,646	—	30 Jun 2023	13F
Westchester Capital Management, LLC	13F	Company	— mixed-class rows	151,562 mixed-class rows	$136,861	—	30 Jun 2023	13F
Vikram Bajaj	3/4/5	Director	— class O/S missing	66,666	$117,999	—	16 Jun 2022	3/4/5
DEUTSCHE BANK AG\	13F	Company	0.03%	62,087	$111,135	—	30 Jun 2023	13F
UBS Group AG	13F	Company	0.03%	61,986	$110,955	—	30 Jun 2023	13F
MetLife Investment Management, LLC	13F	Company	0.03%	53,683	$96,093	—	30 Jun 2023	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.03%	51,579	$92,326	—	30 Jun 2023	13F
BARCLAYS PLC	13F	Company	0.03%	49,777	$89,100	—	30 Jun 2023	13F
MANUFACTURERS LIFE INSURANCE COMPANY, THE	13F	Company	0.03%	49,008	$87,724	—	30 Jun 2023	13F
AMERICAN INTERNATIONAL GROUP, INC.	13F	Company	0.03%	48,349	$86,545	—	30 Jun 2023	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.03%	47,381	$85,000	—	30 Jun 2023	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.03%	45,740	$81,875	—	30 Jun 2023	13F
Man Group plc	13F	Company	0.02%	44,653	$79,929	—	30 Jun 2023	13F
XTX Topco Ltd	13F	Company	0.02%	44,168	$79,061	—	30 Jun 2023	13F
VOYA INVESTMENT MANAGEMENT LLC	13F	Company	0.02%	41,741	$74,716	—	30 Jun 2023	13F

Institutional Holders of Quantum-Si Inc - Common Stock (QSI) as of Q3 2023

As of 30 Sep 2023, Quantum-Si Inc - Common Stock (QSI) was held by 94 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 54,518,149 shares. The largest 10 holders included ARK Investment Management LLC, Sumitomo Mitsui Trust Holdings, Inc., Nikko Asset Management Americas, Inc., BlackRock Inc., VANGUARD GROUP INC, STATE STREET CORP, GEODE CAPITAL MANAGEMENT, LLC, NORTHERN TRUST CORP, Fosun International Ltd, and GUGGENHEIM CAPITAL LLC. This page lists 95 institutional shareholders reporting positions in this security for the Q3 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders

Q3 2023 holders

Holder diff

Investor	Q2 2023 Shares	Q3 2023 Shares	Share Diff	Share Chg %	Q2 2023 Value $	Q3 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.