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 Q1 2023?

95 institutional investors reported QSI - Quantum-Si Inc - Common Stock for Q1 2023. Use the holders table for investor-level position and value details.

Quantum-Si Inc - Common Stock (QSI)

CUSIP: 74765K105

Q1 2023 13F Holders as of 31 Mar 2023

Type / Class: Equity / Common Stock
Shares outstanding: 182,694,067
Total 13F shares: 43,470,316
Share change: -6,211,349
Total reported value: $76,438,490
Put/Call ratio: 46%
Price per share: $1.76
Number of holders: 95
Value change: -$11,104,148
Number of buys: 40
Number of sells: 46

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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Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

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

Newer quarter: Q2 2023
Previous quarter: Q4 2022

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
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
ARK Investment Management LLC	13F	Company	6.5%	11,856,184	$21,696,817	—	31 Dec 2022	13F
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	3.5%	6,461,509	$11,824,562	—	31 Dec 2022	13F
VANGUARD GROUP INC	13F	Company	2.7%	4,947,178	$9,053,335	—	31 Dec 2022	13F
GLENVIEW CAPITAL MANAGEMENT, LLC	13F	Company	2.3%	4,249,956	$7,777,419	—	31 Dec 2022	13F
SECURITY BENEFIT LIFE INSURANCE CO /KS/	13F	Company	2.3%	4,159,426	$7,611,750	—	31 Dec 2022	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
Foresite Capital Management IV, LLC	13F	Company	0.97%	1,771,249	$3,241,386	—	31 Dec 2022	13F
STATE STREET CORP	13F	Company	0.97%	1,767,729	$3,234,944	—	31 Dec 2022	13F
NOMURA HOLDINGS INC	13F	Company	0.96%	1,751,500	$3,175,000	—	31 Dec 2022	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.93%	1,694,944	$3,101,000	—	31 Dec 2022	13F
Sumitomo Mitsui Trust Group, Inc.	13F	Company	0.65%	1,186,120	$2,170,600	—	31 Dec 2022	13F
Amova Asset Management Americas, Inc.	13F	Company	0.65%	1,186,120	$2,146,877	—	31 Dec 2022	13F
Foresite Capital Management V, LLC	13F	Company	0.51%	924,379	$1,691,614	—	31 Dec 2022	13F
NORTHERN TRUST CORP	13F	Company	0.42%	771,007	$1,410,943	—	31 Dec 2022	13F
Fosun International Ltd	13F	Company	0.41%	743,935	$1,361,401	—	31 Dec 2022	13F
Rubric Capital Management LP	13F	Company	0.37%	672,385	$1,230,465	—	31 Dec 2022	13F
GUGGENHEIM CAPITAL LLC	13F	Company	0.34%	612,490	$1,120,857	—	31 Dec 2022	13F
Neumann Advisory Hong Kong Ltd	13F	Company	0.23%	427,631	$783,000	—	31 Dec 2022	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.22%	402,974	$737,442	—	31 Dec 2022	13F
Matthew Dyer	3/4/5	Chief Business Officer	— class O/S missing	333,393	$590,106	—	13 Jun 2022	3/4/5
Nuveen Asset Management, LLC	13F	Company	0.18%	320,303	$586,000	—	31 Dec 2022	13F
Bank of New York Mellon Corp	13F	Company	0.16%	295,654	$541,046	—	31 Dec 2022	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.13%	238,228	$435,957	—	31 Dec 2022	13F
Clearline Capital LP	13F	Company	0.12%	211,900	$387,777	—	31 Dec 2022	13F
Swiss National Bank	13F	Company	0.11%	201,900	$369,477	—	31 Dec 2022	13F
Cubist Systematic Strategies, LLC	13F	Company	0.09%	172,776	$316,180	—	31 Dec 2022	13F
CITADEL ADVISORS LLC	13F	Company	0.08%	144,784	$264,955	—	31 Dec 2022	13F
MORGAN STANLEY	13F	Company	0.08%	144,760	$264,910	—	31 Dec 2022	13F
RHUMBLINE ADVISERS	13F	Company	0.07%	134,614	$246,000	—	31 Dec 2022	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	— mixed-class rows	133,976 mixed-class rows	$221,244	—	31 Dec 2022	13F
GENERAL AMERICAN INVESTORS CO INC	13F	Company	0.07%	119,250	$218,228	—	31 Dec 2022	13F
D. E. Shaw & Co., Inc.	13F	Company	0.06%	113,514	$207,731	—	31 Dec 2022	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.06%	111,901	$204,778	—	31 Dec 2022	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.06%	109,039	$199,541	—	31 Dec 2022	13F
D.A. DAVIDSON & CO.	13F	Company	0.06%	105,000	$192,150	—	31 Dec 2022	13F
Squarepoint Ops LLC	13F	Company	0.05%	96,442	$176,489	—	31 Dec 2022	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.04%	77,937	$142,625	—	31 Dec 2022	13F
Westchester Capital Management, LLC	13F	Company	— mixed-class rows	151,562 mixed-class rows	$140,533	—	31 Dec 2022	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.04%	65,213	$119,340	—	31 Dec 2022	13F
Vikram Bajaj	3/4/5	Director	— class O/S missing	66,666	$117,999	—	16 Jun 2022	3/4/5
CREDIT SUISSE AG/	13F	Company	0.03%	56,221	$102,885	—	31 Dec 2022	13F
JPMORGAN CHASE & CO	13F	Company	0.03%	55,653	$102,000	—	31 Dec 2022	13F
BARCLAYS PLC	13F	Company	0.03%	54,285	$99,342	—	31 Dec 2022	13F
Ionic Capital Management LLC	13F	Company	— class O/S missing	347,264	$86,816	—	31 Dec 2022	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.03%	46,351	$85,000	—	31 Dec 2022	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.03%	46,200	$84,546	—	31 Dec 2022	13F
DEERFIELD MANAGEMENT COMPANY, L.P.	13F	Company	— class O/S missing	333,333	$83,333	—	31 Dec 2022	13F
AMERICAN INTERNATIONAL GROUP, INC.	13F	Company	0.02%	43,205	$79,065	—	31 Dec 2022	13F

Institutional Holders of Quantum-Si Inc - Common Stock (QSI) as of Q1 2023

As of 31 Mar 2023, Quantum-Si Inc - Common Stock (QSI) was held by 95 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 43,470,316 shares. The largest 10 holders included ARK Investment Management LLC, BlackRock Inc., VANGUARD GROUP INC, GLENVIEW CAPITAL MANAGEMENT, LLC, Foresite Capital Management IV, LLC, GEODE CAPITAL MANAGEMENT, LLC, STATE STREET CORP, Sumitomo Mitsui Trust Holdings, Inc., Nikko Asset Management Americas, Inc., and Foresite Capital Management V, LLC. This page lists 96 institutional shareholders reporting positions in this security for the Q1 2023 filing period.

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

Compare Q1 2023 vs Q4 2022 Across Filers

Q4 2022 holders

Q1 2023 holders

Holder diff

-3

Investor	Q4 2022 Shares	Q1 2023 Shares	Share Diff	Share Chg %	Q4 2022 Value $	Q1 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.