Quantum-Si Inc - COM CL A (QSI)

CUSIP: 74765K105

Q3 2025 13F Holders as of 30 Sep 2025

Holder snapshot 7 signals
Share change
+68,696
Put/Call ratio
57%
SEC-reported price per share
$1.41
Number of holders
120
Value change
-$423,140
Number of buys
52
Open additional details 1 more signal available
Number of sells
62
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
19,937,500

Security key

74765K105

Report period

Q3 2025

Institutions

120

Top holders

10

Ownership snapshot

Top reported holders of QSI - Quantum-Si Inc - COM CL A (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Amova Asset Management Am...
Disclosed value leader
2012 JMR Trust Common LLC
Comparable rows
4/15
Latest evidence
30 Jun 2025
13F 13D/G 3/4/5 Lead comparable stake: 4.8% 11 rows are not safely comparable across share classes. 13D/G row: Amova Asset Management Americas, Inc. Showing 1-6 of 15 holder rows.

Quick read

Amova Asset Management Americas, Inc. leads the comparable SEC ownership view at 4.8%.

4 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Amova Asset Management Americas, Inc.'s linked filing trail.
Comparable ownership Top 4
Amova Asset Management Americas, ... 4.8%
Sumitomo Mitsui Trust Group, Inc. 4.8%
VANGUARD GROUP INC 4.8%
ARK Investment Management LLC 4.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Amova Asset Management Americas, Inc.
13F 13D/G
Company · Nikko Asset Management Americas, Inc.
4.8%
Reported 13D/G · 31 Dec 2024
$11,017,754
5,621,303 shares
— 30 Jun 2025
Sumitomo Mitsui Trust Group, Inc.
13F 13D/G
Company
4.8%
Reported 13D/G · 31 Dec 2024
$11,017,754
5,621,303 shares
— 30 Jun 2025
VANGUARD GROUP INC
13F 13D/G
Company · The Vanguard Group
4.8%
Reported 13D/G · 30 Sep 2025
$16,992,535
8,669,661 shares
— 30 Jun 2025
ARK Investment Management LLC
13F 13D/G
Company
4.8%
Reported 13D/G · 31 May 2025
$15,603,043
7,960,736 shares
— 30 Jun 2025
2012 JMR Trust Common LLC
3/4/5
10%+ Owner
—
denominator unverified
$22,089,791
12,480,108 shares
— 10 Jun 2021
4C Holdings I, LLC
3/4/5
10%+ Owner
—
denominator unverified
—
17,943,750 shares
— 10 Jun 2021
How to read this table

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.

13F holder rows

Institutional holders as of Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
120
Shares
64,444,810
Rows available
120
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

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 change Value Chg %

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

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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