Security key
74765K105
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 182,694,067
- Total 13F shares
- 64,444,810
- Share change
- +68,696
- Total reported value
- $90,874,495
- Put/Call ratio
- 57%
- Price per share
- $1.41
- Number of holders
- 120
- Value change
- -$423,140
- Number of buys
- 52
- Number of sells
- 62
Report period
Q3 2025
Institutions
120
Top holders
10
QSI full security history
Newer quarter: Q4 2025
Previous quarter: Q2 2025
Quantum-Si Inc SEC filings
Quantum-Si Inc company facts
Broader feeds
Reporting periods
Holder history for CUSIP 74765K105
Recent filing periods:
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 first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings 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 |
|---|---|---|---|---|---|---|---|---|
| Ph.D. Jonathan M. Rothberg |
13D/G
|
ROTHBERG JONATHAN M. |
100%
|
19,937,500
|
$23,326,875 | $0 | 09 Sep 2025 | |
| Amova Asset Management Americas, Inc. |
13F
13D/G
|
Company · Nikko Asset Management Americas, Inc. |
4.8%
from 13D/G
|
5,621,303
|
$11,017,754 | — | 30 Jun 2025 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
13D/G
|
Company |
4.8%
from 13D/G
|
5,621,303
|
$11,017,754 | — | 30 Jun 2025 | |
| VANGUARD GROUP INC |
13F
13D/G
|
Company · The Vanguard Group |
4.8%
from 13D/G
|
8,669,661
|
$16,992,535 | — | 30 Jun 2025 | |
| ARK Investment Management LLC |
13F
13D/G
|
Company |
4.8%
from 13D/G
|
7,960,736
|
$15,603,043 | — | 30 Jun 2025 | |
| Todd C. Bennett |
3/4/5
|
Chief Commercial Officer |
0.37%
|
681,521
|
$1,114,286 | -$61,316 | 22 Sep 2025 | |
| BlackRock, Inc. |
13F
|
Company |
5.9%
|
10,848,142
|
$21,262,359 | — | 30 Jun 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
2.1%
|
3,779,259
|
$7,407,348 | — | 30 Jun 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.9%
|
3,447,738
|
$6,758,956 | — | 30 Jun 2025 | |
| STATE STREET CORP |
13F
|
Company |
1.5%
|
2,756,437
|
$5,402,617 | — | 30 Jun 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.3%
|
2,289,456
|
$4,487,334 | — | 30 Jun 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.62%
|
1,126,084
|
$2,207,125 | — | 30 Jun 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.54%
|
986,084
|
$1,932,725 | — | 30 Jun 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.49%
|
894,100
|
$1,752,436 | — | 30 Jun 2025 | |
| UBS Group AG |
13F
|
Company |
0.43%
|
789,570
|
$1,547,557 | — | 30 Jun 2025 | |
| Fosun International Ltd |
13F
|
Company |
0.41%
|
743,935
|
$1,458,113 | — | 30 Jun 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.31%
|
564,442
|
$1,106,306 | — | 30 Jun 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.31%
|
558,307
|
$1,094,282 | — | 30 Jun 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.26%
|
465,999
|
$913,358 | — | 30 Jun 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.25%
|
460,289
|
$902,000 | — | 30 Jun 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.24%
|
431,447
|
$845,636 | — | 30 Jun 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.19%
|
352,732
|
$691,353 | — | 30 Jun 2025 | |
| Knollwood Investment Advisory, LLC |
13F
|
Company |
0.16%
|
300,000
|
$588,000 | — | 30 Jun 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.16%
|
289,913
|
$568,230 | — | 30 Jun 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.16%
|
284,363
|
$557,000 | — | 30 Jun 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.15%
|
272,180
|
$533,473 | — | 30 Jun 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.13%
|
239,001
|
$468,442 | — | 30 Jun 2025 | |
| Green Alpha Advisors, LLC |
13F
|
Company |
0.12%
|
228,348
|
$447,562 | — | 30 Jun 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.12%
|
223,100
|
$437,276 | — | 30 Jun 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.11%
|
203,967
|
$399,766 | — | 30 Jun 2025 | |
| Pathstone Holdings, LLC |
13F
|
Company |
0.11%
|
198,798
|
$389,644 | — | 30 Jun 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.11%
|
196,100
|
$384,356 | — | 30 Jun 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.11%
|
195,450
|
$383,082 | — | 30 Jun 2025 | |
| GROUP ONE TRADING LLC |
13F
|
Company |
0.07%
|
134,632
|
$263,879 | — | 30 Jun 2025 | |
| Shay Capital LLC |
13F
|
Company |
0.07%
|
129,631
|
$254,077 | — | 30 Jun 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.07%
|
121,703
|
$238,538 | — | 30 Jun 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.07%
|
120,506
|
$237,000 | — | 30 Jun 2025 | |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd |
13F
|
Company |
0.06%
|
116,828
|
$228,983 | — | 30 Jun 2025 | |
| SIMPLEX TRADING, LLC |
13F
|
Company |
0.06%
|
105,534
|
$206,000 | — | 30 Jun 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.06%
|
101,716
|
$199,363 | — | 30 Jun 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.05%
|
98,532
|
$193,123 | — | 30 Jun 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.05%
|
89,200
|
$174,832 | — | 30 Jun 2025 | |
| INTECH INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.05%
|
88,497
|
$173,454 | — | 30 Jun 2025 | |
| AlphaCore Capital LLC |
13F
|
Company |
0.05%
|
83,950
|
$164,542 | — | 30 Jun 2025 | |
| Sculptor Capital LP |
13F
|
Company |
0.04%
|
78,200
|
$153,272 | — | 30 Jun 2025 | |
| MetLife Investment Management, LLC |
13F
|
Company |
0.04%
|
77,316
|
$151,539 | — | 30 Jun 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.04%
|
77,215
|
$151,341 | — | 30 Jun 2025 | |
| EWA, LLC |
13F
|
Company |
0.04%
|
68,200
|
$133,672 | — | 30 Jun 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.04%
|
66,656
|
$130,646 | — | 30 Jun 2025 | |
| AXQ CAPITAL, LP |
13F
|
Company |
0.03%
|
57,000
|
$111,720 | — | 30 Jun 2025 |
Institutional Holders of Quantum-Si Inc - Common Stock (QSI) as of Q3 2025
As of 30 Sep 2025,
Quantum-Si Inc - Common Stock (QSI) was held by
120 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
64,444,810 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD GROUP INC, ARK Investment Management LLC, Amova Asset Management Americas, Inc., Sumitomo Mitsui Trust Group, Inc., GEODE CAPITAL MANAGEMENT, LLC, STATE STREET CORP, MILLENNIUM MANAGEMENT LLC, NORTHERN TRUST CORP, and SUSQUEHANNA INTERNATIONAL GROUP, LLP.
This page lists
121
institutional shareholders reporting positions in this security
for the Q3 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
131
Q3 2025 holders
120
Holder diff
-11
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 Value $ | Q3 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.