Quantum Si Inc QSI
Institutional shares held
55.8 Million
597K
calls
1.07M
puts
Total value of holdings
$102M
$1.09M
calls
$1.94M
puts
Market Cap
$217M
119,433,000
Shares Out.
Institutional ownership
46.73%
# of Institutions
148
We take great care to ensure that the data presented and summarized in this overview for Quantum-Si Inc is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding QSI
View all-
Cathie Wood Ark Investment Management LLC | St. Petersburg, Fl8.71MShares$15.9 Million0.11% of portfolio
-
Black Rock Inc. New York, NY7MShares$12.7 Million0.0% of portfolio
-
Vanguard Group Inc Valley Forge, PA6.89MShares$12.5 Million0.0% of portfolio
-
Sumitomo Mitsui Trust Holdings, Inc.5.81MShares$10.6 Million0.01% of portfolio
-
Nikko Asset Management Americas, Inc.5.81MShares$10.6 Million0.09% of portfolio
-
Israel Englander Millennium Management LLC | New York, Ny3.93MShares$7.16 Million0.0% of portfolio
-
Geode Capital Management, LLC Boston, MA2.99MShares$5.45 Million0.0% of portfolio
-
State Street Corp Boston, MA2.45MShares$4.47 Million0.0% of portfolio
-
Northern Trust Corp Chicago, IL1.02MShares$1.86 Million0.0% of portfolio
-
Jim Simons Renaissance Technologies LLC | New York, Ny872KShares$1.59 Million0.0% of portfolio
Latest Institutional Activity in QSI
Top Purchases
Top Sells
About QSI
Quantum-Si incorporated, a life sciences company, develops a single molecule detection platform for sample preparation and sequencing. It offers a proprietary single molecule detection platform for use in semiconductor industry to field proteomics to enable next generation protein sequencing. The company was incorporated in 2013 is based in Guilford, Connecticut.
Insider Transactions at QSI
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Jun 23
2025
|
John S. Vieceli Chief Product Officer |
SELL
Open market or private sale
|
Direct |
21,923
-2.54%
|
$21,923
$1.61 P/Share
|
|
Jun 23
2025
|
Jeffrey Alan Hawkins President & CEO |
SELL
Open market or private sale
|
Direct |
23,705
-0.9%
|
$23,705
$1.61 P/Share
|
|
Jun 23
2025
|
Christian La Pointe GC & Corp. Secretary |
SELL
Open market or private sale
|
Direct |
11,946
-1.21%
|
$11,946
$1.61 P/Share
|
|
Jun 23
2025
|
Jeffry R. Keyes Chief Financial Officer |
SELL
Open market or private sale
|
Direct |
8,624
-0.73%
|
$8,624
$1.61 P/Share
|
|
Mar 21
2025
|
Jeffrey Alan Hawkins President & CEO |
SELL
Open market or private sale
|
Direct |
23,707
-0.89%
|
$23,707
$1.39 P/Share
|
|
Mar 21
2025
|
Christian La Pointe GC & Corp. Secretary |
SELL
Open market or private sale
|
Direct |
4,896
-0.5%
|
$4,896
$1.39 P/Share
|
|
Mar 21
2025
|
Jeffry R. Keyes Chief Financial Officer |
SELL
Open market or private sale
|
Direct |
8,626
-0.72%
|
$8,626
$1.39 P/Share
|
|
Mar 21
2025
|
John S. Vieceli Chief Product Officer |
SELL
Open market or private sale
|
Direct |
4,317
-0.5%
|
$4,317
$1.39 P/Share
|
|
Mar 12
2025
|
Jeffrey Alan Hawkins President & CEO |
BUY
Grant, award, or other acquisition
|
Direct |
1,666,666
+38.43%
|
-
|
|
Mar 12
2025
|
John S. Vieceli Chief Product Officer |
BUY
Grant, award, or other acquisition
|
Direct |
708,333
+44.91%
|
-
|
|
Mar 12
2025
|
Todd C. Bennett Chief Commercial Officer |
BUY
Grant, award, or other acquisition
|
Direct |
208,333
+22.48%
|
-
|
|
Mar 12
2025
|
Jeffry R. Keyes Chief Financial Officer |
BUY
Grant, award, or other acquisition
|
Direct |
750,000
+38.52%
|
-
|
|
Mar 12
2025
|
Christian La Pointe GC & Corp. Secretary |
BUY
Grant, award, or other acquisition
|
Direct |
416,666
+29.66%
|
-
|
|
Dec 27
2024
|
Jonathan M Rothberg |
SELL
Open market or private sale
|
Indirect |
3,506,267
-21.25%
|
$10,518,801
$3.7 P/Share
|
|
Dec 23
2024
|
John S. Vieceli Chief Product Officer |
SELL
Open market or private sale
|
Direct |
4,306
-2.61%
|
$4,306
$1.29 P/Share
|
|
Sep 24
2024
|
John S. Vieceli Chief Product Officer |
SELL
Open market or private sale
|
Direct |
2,117
-1.27%
|
$0
$0.93 P/Share
|
|
Sep 23
2024
|
John S. Vieceli Chief Product Officer |
SELL
Open market or private sale
|
Direct |
2,192
-1.3%
|
$0
$0.95 P/Share
|
|
Sep 17
2024
|
Todd C. Bennett Chief Commercial Officer |
BUY
Grant, award, or other acquisition
|
Direct |
510,152
+50.0%
|
-
|
|
Aug 12
2024
|
Charles R. Kummeth |
BUY
Open market or private purchase
|
Direct |
31,100
+8.05%
|
$0
$0.89 P/Share
|
|
Aug 09
2024
|
Charles R. Kummeth |
BUY
Open market or private purchase
|
Direct |
138,900
+30.01%
|
$0
$0.87 P/Share
|
Last 12 Months Summary
Buy / Acquisition
4.53M
Shares
From
9
Insiders
| Open market or private purchase | 270K shares |
|---|---|
| Grant, award, or other acquisition | 4.26M shares |
Sell / Disposition
3.62M
Shares
From
5
Insiders
| Open market or private sale | 3.62M shares |
|---|