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Quantum-Si Inc
QSIAdd to Watchlist
0.890USD
-0.043-4.59%
Close 05/15, 16:00（ET）Quotes delayed by 15 min
193.83MMarket Cap
LossP/E TTM
More Details of Quantum-Si Inc Company
Quantum-SI Incorporated is a life sciences company. The Company has designed and developed a hardware, consumable and software solution to provide a solution for protein detection and analysis. It has developed a proprietary universal single-molecule detection platform enables Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins. Its launched product consists of Platinum, the Platinum Analysis Software and consumables. Its flagship protein sequencing instrument, Platinum, is designed to make the power of single-molecule detection and NGPS accessible. Platinum is designed to provide a streamlined workflow compared to legacy MS workflows. Platinum uses its proprietary semiconductor chip that leverages time-domain sequencing with an initial focus on NGPS for an unbiased view of the proteome.
Quantum-Si Inc Info
Ticker SymbolQSI
Company nameQuantum-Si Inc
IPO dateSep 04, 2020
CEOHawkins (Jeffrey Alan)
Number of employees143
Security typeOrdinary Share
Fiscal year-endSep 04
Address29 Business Park Drive
CityBRANFORD
Stock exchangeNASDAQ OMX - NASDAQ BASIC
CountryUnited States of America
Postal code06405
Phone12034587100
Websitehttps://www.quantum-si.com/
Ticker SymbolQSI
IPO dateSep 04, 2020
CEOHawkins (Jeffrey Alan)
Company Executives of Quantum-Si Inc
Name
Name/Position
Position
Shareholding
Change
Mr. Kevin L. Rakin
Mr. Kevin L. Rakin
Independent Director
Independent Director
2.92M
--
Dr. Christian LaPointe, Ph.D.
Dr. Christian LaPointe, Ph.D.
General Counsel, Corporate Secretary
General Counsel, Corporate Secretary
1.08M
+23.05%
Mr. Charles R. (Chuck) Kummeth
Mr. Charles R. (Chuck) Kummeth
Independent Non-Executive Chairman of the Board
Independent Non-Executive Chairman of the Board
855.00K
+58.48%
Mr. Todd C. Bennett
Mr. Todd C. Bennett
Chief Commercial Officer
Chief Commercial Officer
681.52K
-5.42%
Mr. Jeffrey Alan (Jeff) Hawkins
Mr. Jeffrey Alan (Jeff) Hawkins
President, Chief Executive Officer, Director
President, Chief Executive Officer, Director
671.56K
-24.93%
Mr. Jeffry R. (Jeff) Keyes
Mr. Jeffry R. (Jeff) Keyes
Chief Financial Officer, Treasurer
Chief Financial Officer, Treasurer
348.10K
-21.48%
Ms. Paula Dowdy
Ms. Paula Dowdy
Independent Director
Independent Director
216.03K
+75.43%
Ms. Ruth A. Fattori
Ms. Ruth A. Fattori
Independent Director
Independent Director
170.51K
--
Mr. Scott Mendel
Mr. Scott Mendel
Independent Director
Independent Director
141.84K
+66.67%
Mr. Amir Jafri
Mr. Amir Jafri
Independent Director
Independent Director
77.29K
+50.00%
View more
Name
Name/Position
Position
Shareholding
Change
Mr. Kevin L. Rakin
Mr. Kevin L. Rakin
Independent Director
Independent Director
2.92M
--
Dr. Christian LaPointe, Ph.D.
Dr. Christian LaPointe, Ph.D.
General Counsel, Corporate Secretary
General Counsel, Corporate Secretary
1.08M
+23.05%
Mr. Charles R. (Chuck) Kummeth
Mr. Charles R. (Chuck) Kummeth
Independent Non-Executive Chairman of the Board
Independent Non-Executive Chairman of the Board
855.00K
+58.48%
Mr. Todd C. Bennett
Mr. Todd C. Bennett
Chief Commercial Officer
Chief Commercial Officer
681.52K
-5.42%
Mr. Jeffrey Alan (Jeff) Hawkins
Mr. Jeffrey Alan (Jeff) Hawkins
President, Chief Executive Officer, Director
President, Chief Executive Officer, Director
671.56K
-24.93%
Mr. Jeffry R. (Jeff) Keyes
Mr. Jeffry R. (Jeff) Keyes
Chief Financial Officer, Treasurer
Chief Financial Officer, Treasurer
348.10K
-21.48%
Revenue Breakdown
Currency: USDUpdated: Mon, Apr 6
Currency: USDUpdated: Mon, Apr 6
FY2025
Relevant data have not been disclosed by the company yet.
By RegionUSD
Name
Revenue
Proportion
International
1.74M
71.31%
United states
699.00K
28.69%
By Business
By Region
Relevant data have not been disclosed by the company yet.
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%
Dividend
A total of
0.00
USD has been distributed in dividends over the past 5 years.
Date
Dividend
Record Date
Payment Date
Ex-dividend Date
No Data
Stock Splits
Date
Ex-dividend Date
Type
Ratio
No Data
Date
Ex-dividend Date
Type
Ratio
No Data
