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Quantum-Si Inc
QSIAdd to Watchlist
0.712USD
-0.008-1.06%
Close 07-31 16:00（ET）Quotes delayed by 15 min
155.13MMarket Cap
LossP/E TTM
Shareholding Stats
Updated: Thu, May 14
Updated: Thu, May 14
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
Rothberg (Jonathan M)
6.93%
BlackRock Institutional Trust Company, N.A.
6.11%
Vanguard Capital Management, LLC
3.55%
ARK Investment Management LLC
3.48%
Amova Asset Management Co., Ltd.
2.22%
Other
77.71%
Shareholders
Shareholders
Proportion
Rothberg (Jonathan M)
6.93%
BlackRock Institutional Trust Company, N.A.
6.11%
Vanguard Capital Management, LLC
3.55%
ARK Investment Management LLC
3.48%
Amova Asset Management Co., Ltd.
2.22%
Other
77.71%
Shareholder Types
Shareholders
Proportion
Investment Advisor
19.34%
Individual Investor
10.68%
Investment Advisor/Hedge Fund
8.71%
Hedge Fund
2.40%
Research Firm
1.37%
Holding Company
0.38%
Venture Capital
0.23%
Bank and Trust
0.14%
Pension Fund
0.04%
Other
56.71%
Institutional Shareholding
Updated: Wed, Apr 1
Updated: Wed, Apr 1
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2026Q1
278
73.37M
37.10%
+9.69M
2025Q4
253
61.41M
31.40%
+1.24M
2025Q3
250
58.86M
30.10%
+4.27M
2025Q2
270
77.82M
42.65%
-708.03K
2025Q1
278
76.41M
46.71%
+317.44K
2024Q4
271
68.59M
42.10%
-6.57M
2024Q3
252
70.04M
55.68%
-7.45M
2024Q2
247
70.14M
56.56%
-4.69M
2024Q1
255
69.57M
56.30%
-9.44M
2023Q4
250
68.72M
56.32%
-9.91M
View more
Shareholder Activity
Name
Shares Held
Proportion
Change
Chg %
Date
Rothberg (Jonathan M)
13.73M
7.02%
--
--
Sep 09, 2025
BlackRock Institutional Trust Company, N.A.
10.47M
5.36%
+478.27K
+4.79%
Sep 30, 2025
ARK Investment Management LLC
7.62M
3.9%
-336.69K
-4.23%
Sep 30, 2025
Amova Asset Management Co., Ltd.
5.22M
2.67%
-403.80K
-7.18%
Sep 30, 2025
Geode Capital Management, L.L.C.
3.75M
1.92%
+299.43K
+8.68%
Sep 30, 2025
State Street Investment Management (US)
2.82M
1.44%
+61.05K
+2.21%
Sep 30, 2025
Rakin (Kevin L)
2.92M
1.49%
+6.84K
+0.23%
Mar 03, 2025
Citadel Advisors LLC
2.68M
1.36%
+2.27M
+557.44%
Dec 31, 2025
Susquehanna International Group, LLP
2.04M
1.04%
+1.06M
+106.99%
Sep 30, 2025
View more
Related ETFs
Updated: Tue, Dec 2
Updated: Tue, Dec 2
Name
Proportion
ARK Genomic Revolution ETF
1.37%
Vanguard US Momentum Factor ETF
0.07%
iShares Micro-Cap ETF
0.06%
iShares Russell 2000 Value ETF
0.02%
Invesco RAFI US 1500 Small-Mid ETF
0.02%
Global X Russell 2000 ETF
0.01%
ProShares Hedge Replication ETF
0.01%
Proshares Ultra Russell 2000
0.01%
Invesco Russell 2000 Dynamic Multifactor ETF
0.01%
iShares Russell 2000 ETF
0.01%
View more
ARK Genomic Revolution ETF
Proportion1.37%
Vanguard US Momentum Factor ETF
Proportion0.07%
iShares Micro-Cap ETF
Proportion0.06%
iShares Russell 2000 Value ETF
Proportion0.02%
Invesco RAFI US 1500 Small-Mid ETF
Proportion0.02%
Global X Russell 2000 ETF
Proportion0.01%
ProShares Hedge Replication ETF
Proportion0.01%
Proshares Ultra Russell 2000
Proportion0.01%
Invesco Russell 2000 Dynamic Multifactor ETF
Proportion0.01%
iShares Russell 2000 ETF
Proportion0.01%