- Type / Class
- Equity / Common Stock
- Shares outstanding
- 182,694,067
- Total 13F shares
- 44,270,353
- Share change
- +44,245,462
- Total reported value
- $533,450,402
- Put/Call ratio
- 24%
- Price per share
- $12.26
- Number of holders
- 70
- Value change
- +$533,145,402
- Number of buys
- 68
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.
Related Filing Research
- Latest 13F filings for newly reported positions.
- Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
- Latest 10-Q/10-K reports for financial context tied to this issuer.
- Recent insider transactions for executive and insider activity.
- SEC investors directory and top value investors for manager drilldown.
- Back to full security ownership history.
Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
- Newer quarter: Q3 2021
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 | |
| 4C Holdings I, LLC |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
17,943,750
|
— | — | 10 Jun 2021 |
Institutional Holders of Quantum-Si Inc - Common Stock (QSI) as of Q2 2021
As of 30 Jun 2021,
Quantum-Si Inc - Common Stock (QSI) was held by
70 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
44,270,353 shares.
The largest 10 holders included
GLENVIEW CAPITAL MANAGEMENT, LLC, Foresite Capital Management IV, LLC, ARK Investment Management LLC, Alyeska Investment Group, L.P., MILLENNIUM MANAGEMENT LLC, Capital International Investors, Foresite Capital Management V, LLC, PRICE T ROWE ASSOCIATES INC /MD/, Farallon Capital Management LLC, and Redmile Group, LLC.
This page lists
70
institutional shareholders reporting positions in this security
for the Q2 2021 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2021 vs Q4 2025 Across Filers
Q4 2025 holders
132
Q2 2021 holders
70
Holder diff
-62
| Investor | Q4 2025 Shares | Q2 2021 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q2 2021 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.