Quantum Si Inc QSI

QSI Quotes by TradingView
Institutional shares held 52.5 Million
1.32M calls
610K puts
Total value of holdings $64.6M
$1.62M calls
$750K puts
Market Cap $137M
119,433,000 Shares Out.
Institutional ownership 43.97%
# of Institutions 137

Quarterly Institutional Activity in QSI

Shares Bought
Shares Sold
View Transactions

Top Institutions Holding QSI

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Latest Institutional Activity in QSI

Top Purchases

Q1 2025
Green Alpha Advisors, LLC Shares Held: 244K ($281K)
85.2K Shares purchased
53.64% Added
Q1 2025
Hbw Advisory Services LLC Shares Held: 24.2K ($27.9K)
24.2K Shares purchased
New Holding
Q1 2025
Ballew Advisors, Inc Shares Held: 10K ($11.5K)
10K Shares purchased
New Holding
Q1 2025
Fny Investment Advisers, LLC Shares Held: 4K ($4.6K)
4K Shares purchased
New Holding
Q1 2025
Rhumbline Advisers Shares Held: 150K ($172K)
1.03K Shares purchased
0.69% Added
View All Buyers

Top Sells

Q1 2025
Sg Americas Securities, LLC Shares Held: 40.1K ($46.1K)
27.5K Shares sold
40.7% Reduced
Q1 2025
Capital Advisors, Ltd. LLC Shares Held: 60 ($69)
501 Shares sold
89.3% Reduced
Q4 2024
Ark Investment Management LLC Shares Held: 8.85M ($10.2M)
2.99M Shares sold
25.28% Reduced
Q4 2024
Sumitomo Mitsui Trust Holdings, Inc. Shares Held: 5.97M ($6.86M)
1.58M Shares sold
20.97% Reduced
Q4 2024
Nikko Asset Management Americas, Inc. Shares Held: 5.97M ($6.86M)
1.56M Shares sold
20.76% Reduced
View All Sellers

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.

QSI Chart by TradingView
QSI Fundamental Data by TradingView

Insider Transactions at QSI

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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 General Counsel & Corp. Secr.
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 General Counsel & Corp. Secr.
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
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
Aug 09 2024
Jeffry R. Keyes Chief Financial Officer
BUY
Open market or private purchase
Direct
50,000 +10.06%
$0 $0.87 P/Share
Aug 09 2024
Christian La Pointe General Counsel & Corp. Secr.
BUY
Open market or private purchase
Direct
25,000 +4.19%
$0 $0.86 P/Share
Aug 09 2024
Jeffrey Alan Hawkins President & CEO
BUY
Open market or private purchase
Direct
25,000 +2.43%
$0 $0.85 P/Share
Jun 24 2024
Grace Johnston Chief Commercial Officer
SELL
Open market or private sale
Direct
3,169 -1.06%
$3,169 $1.2 P/Share
View All Transactions

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
3.56M Shares
From 6 Insiders
Open market or private sale 3.56M shares

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P - Open market or private purchase×
S - Open market or private sale×
V - Transaction voluntarily reported earlier than required×
A - Grant, award, or other acquisition×
D - Sale (or disposition) back to the issuer×
F - Payment of exercise price or tax liability×
I - Discretionary transaction×
M - Exercise of conversion of derivative security×
C - Conversion of derivative security×
E - Expiration of short derivative position×
H - Expiration (or cancellation) of long derivative position with value received×
O - Exercise of out-of-the-money derivative securities×
X - Exercise of in-the-money or at-the-money derivatives securities×
G - Bona fide gift×
L - Small Acquisition×
W - Acquisition or disposition by will or laws×
Z - Deposit into or withdrawal from voting trust×
J - Other acquisition or disposition×
K - Transaction in equity swap or similar instrument×
U - Disposition due to a tender of shares in a change of control transaction×
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