- Type / Class
- Equity / Common Stock
- Shares outstanding
- 182,694,067
- Total 13F shares
- 64,302,080
- Share change
- +6,647,772
- Total reported value
- $126,030,953
- Put/Call ratio
- 137%
- Price per share
- $1.96
- Number of holders
- 131
- Value change
- +$13,332,090
- Number of buys
- 69
- Number of sells
- 48
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?
Open the full security ownership history page.
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These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.
- Back to full security ownership history for the broader multi-quarter picture.
- Latest 13F filings for newly reported positions across managers.
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Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
Recent filing periods for CUSIP 74765K105:
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 | |
| James B. Tananbaum |
3/4/5
|
Director |
—
class O/S missing
|
8,424,317
|
$14,911,041 | — | 10 Jun 2021 | |
| ARK Investment Management LLC |
13D/G
13F
|
Company |
4.8%
|
7,809,337
|
$11,792,099 | -$1,365,288 | 31 May 2025 | |
| BlackRock, Inc. |
13F
|
Company |
5.2%
|
9,440,243
|
$11,328,290 | — | 31 Mar 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
3.8%
|
6,892,862
|
$8,271,435 | — | 31 Mar 2025 | |
| Amova Asset Management Americas, Inc. |
13D/G
13F
|
Nikko Asset Management Americas, Inc. · Company |
4.8%
|
5,965,208
|
$7,217,902 | $0 | 31 Dec 2024 | |
| Sumitomo Mitsui Trust Group, Inc. |
13D/G
13F
|
Company |
4.8%
|
5,965,208
|
$7,217,902 | $0 | 31 Dec 2024 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
2.2%
|
3,934,285
|
$4,721,142 | — | 31 Mar 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.6%
|
2,994,888
|
$3,594,615 | — | 31 Mar 2025 | |
| John Viii Stark |
3/4/5
|
Chief Executive Officer, Director |
—
class O/S missing
|
1,977,368
|
$3,499,941 | — | 10 Jan 2022 | |
| STATE STREET CORP |
13F
|
Company |
1.3%
|
2,454,106
|
$2,944,927 | — | 31 Mar 2025 | |
| Kevin Rakin |
3/4/5
|
Director |
—
mixed-class rows
|
1,346,607
mixed-class rows
|
$1,476,819 | — | 19 May 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.56%
|
1,022,118
|
$1,226,541 | — | 31 Mar 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.48%
|
871,756
|
$1,046,107 | — | 31 Mar 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.45%
|
816,975
|
$980,370 | — | 31 Mar 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.44%
|
796,930
|
$956,316 | — | 31 Mar 2025 | |
| Fosun International Ltd |
13F
|
Company |
0.41%
|
743,935
|
$892,722 | — | 31 Mar 2025 | |
| Matthew Dyer |
3/4/5
|
Chief Business Officer |
—
class O/S missing
|
333,393
|
$590,106 | — | 13 Jun 2022 | |
| UBS Group AG |
13F
|
Company |
0.25%
|
449,682
|
$539,619 | — | 31 Mar 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.24%
|
441,314
|
$529,577 | — | 31 Mar 2025 | |
| XTX Topco Ltd |
13F
|
Company |
0.2%
|
368,968
|
$442,762 | — | 31 Mar 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.2%
|
367,444
|
$440,933 | — | 31 Mar 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.17%
|
319,100
|
$382,920 | — | 31 Mar 2025 | |
| Knollwood Investment Advisory, LLC |
13F
|
Company |
0.16%
|
300,000
|
$360,000 | — | 31 Mar 2025 | |
| Grace Johnston |
3/4/5
|
Chief Commercial Officer |
—
class O/S missing
|
295,940
|
$353,915 | — | 21 Jun 2024 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.16%
|
294,906
|
$353,887 | — | 31 Mar 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.16%
|
287,488
|
$344,985 | — | 31 Mar 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.13%
|
246,192
|
$295,000 | — | 31 Mar 2025 | |
| Green Alpha Advisors, LLC |
13F
|
Company |
0.13%
|
244,067
|
$292,880 | — | 31 Mar 2025 | |
| Pathstone Holdings, LLC |
13F
|
Company |
0.12%
|
214,309
|
$257,171 | — | 31 Mar 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.11%
|
196,100
|
$235,320 | — | 31 Mar 2025 | |
| Ruth A. Fattori |
3/4/5
|
Director |
—
mixed-class rows
|
296,607
mixed-class rows
|
$206,319 | — | 19 May 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.08%
|
149,973
|
$179,962 | — | 31 Mar 2025 | |
| Scott Mendel |
3/4/5
|
Director |
—
mixed-class rows
|
267,938
mixed-class rows
|
$171,630 | — | 19 May 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.08%
|
138,498
|
$166,198 | — | 31 Mar 2025 | |
| GUGGENHEIM CAPITAL LLC |
13F
|
Company |
0.07%
|
129,021
|
$154,825 | — | 31 Mar 2025 | |
| Shay Capital LLC |
13F
|
Company |
0.07%
|
128,500
|
$154,200 | — | 31 Mar 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.07%
|
120,888
|
$145,065 | — | 31 Mar 2025 | |
| John P. Kenny |
3/4/5
|
Director |
—
mixed-class rows
|
240,380
mixed-class rows
|
$138,284 | — | 19 May 2025 | |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
|
Company |
—
class O/S missing
|
333,333
|
$133,333 | — | 31 Mar 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.06%
|
110,180
|
$132,216 | — | 31 Mar 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.06%
|
108,174
|
$130,000 | — | 31 Mar 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.06%
|
103,657
|
$124,388 | — | 31 Mar 2025 | |
| Vikram Bajaj |
3/4/5
|
Director |
—
class O/S missing
|
66,666
|
$117,999 | — | 16 Jun 2022 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.05%
|
96,042
|
$115,251 | — | 31 Mar 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.05%
|
92,875
|
$111,450 | — | 31 Mar 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.05%
|
88,495
|
$106,194 | — | 31 Mar 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.05%
|
84,459
|
$101,351 | — | 31 Mar 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.05%
|
83,333
|
$100,000 | — | 31 Mar 2025 | |
| Jefferies Financial Group Inc. |
13F
|
Company |
0.05%
|
83,031
|
$99,637 | — | 31 Mar 2025 |
Institutional Holders of Quantum-Si Inc - Common Stock (QSI) as of Q2 2025
As of 30 Jun 2025,
Quantum-Si Inc - Common Stock (QSI) was held by
131 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
64,302,080 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD GROUP INC, ARK Investment Management LLC, Sumitomo Mitsui Trust Group, Inc., Nikko Asset Management Americas, Inc., MILLENNIUM MANAGEMENT LLC, GEODE CAPITAL MANAGEMENT, LLC, STATE STREET CORP, NORTHERN TRUST CORP, and Nuveen, LLC.
This page lists
133
institutional shareholders reporting positions in this security
for the Q2 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
132
Q2 2025 holders
131
Holder diff
-1
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 Value $ | Q2 2025 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.
An asterisk sign (*) next to the price indicates that the price is likely invalid.