Quantum-Si incorporated

NasdaqGM:QSI Stock Report

Market Cap: US$217.5m

Quantum-Si Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGM:QSI Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
21 Apr 26SellUS$167,541Jeffrey HawkinsIndividual167,424US$1.01
21 Apr 26SellUS$74,815Jeffry KeyesIndividual74,763US$1.01
23 Mar 26SellUS$19,906Jeffrey HawkinsIndividual23,777US$0.85
23 Mar 26SellUS$18,416John VieceliIndividual21,997US$0.85
23 Mar 26SellUS$10,012Christian LapointeIndividual11,959US$0.85
23 Mar 26SellUS$7,246Jeffry KeyesIndividual8,655US$0.85
05 Mar 26BuyUS$459,800Charles KummethIndividual500,000US$0.92
05 Mar 26BuyUS$104,450Paula DowdyIndividual109,890US$0.95
22 Dec 25SellUS$30,250Jeffrey HawkinsIndividual23,707US$1.28
22 Dec 25SellUS$11,008Jeffry KeyesIndividual8,627US$1.28
22 Dec 25SellUS$15,249Christian LapointeIndividual11,951US$1.28
22 Dec 25SellUS$27,979John VieceliIndividual21,927US$1.28
23 Sep 25SellUS$61,316Todd BennettIndividual36,964US$1.68
23 Sep 25SellUS$12,849Jeffry KeyesIndividual7,746US$1.68
23 Sep 25SellUS$32,655John VieceliIndividual19,686US$1.68
23 Sep 25SellUS$35,309Jeffrey HawkinsIndividual21,286US$1.68
23 Sep 25SellUS$17,796Christian LapointeIndividual10,728US$1.68
23 Jun 25SellUS$13,918Jeffry KeyesIndividual8,624US$1.61
23 Jun 25SellUS$19,280Christian LapointeIndividual11,946US$1.61
23 Jun 25SellUS$35,382John VieceliIndividual21,923US$1.61
23 Jun 25SellUS$38,257Jeffrey HawkinsIndividual23,705US$1.61

Insider Trading Volume

Insider Buying: QSI insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of QSI?
Owner TypeNumber of SharesOwnership Percentage
Private Companies872,3840.401%
Individual Insiders37,683,54817.3%
Institutions59,210,17627.2%
General Public119,994,05555.1%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 18.7%.

Top Shareholders

Top 25 shareholders own 41.01% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
15.5%
Jonathan Rothberg
33,644,178US$33.6m0%no data
6.16%
BlackRock, Inc.
13,414,949US$13.4m2.76%no data
3.22%
Vanguard Capital Management, LLC
7,021,907US$7.0m0%no data
3.16%
ARK Investment Management LLC
6,878,899US$6.9m-2.03%0.04%
2.02%
Amova Asset Management Co., Ltd.
4,391,666US$4.4m-6.38%no data
1.76%
Geode Capital Management, LLC
3,835,121US$3.8m-6.79%no data
1.73%
State Street Global Advisors, Inc.
3,770,689US$3.8m5.84%no data
1.05%
AQR Capital Management, LLC
2,292,290US$2.3m2,560%no data
0.78%
UBS Asset Management AG
1,702,527US$1.7m17.5%no data
0.7%
Vanguard Portfolio Management, LLC
1,520,646US$1.5m0%no data
0.67%
Susquehanna International Group, LLP
1,464,568US$1.5m-37.1%no data
0.58%
Northern Trust Global Investments
1,260,701US$1.3m-42.9%no data
0.55%
HighCape Partners Management, L.P.
1,200,000US$1.2m0%19.54%
0.51%
Vanguard Fiduciary Trust Company
1,117,252US$1.1m0.35%no data
0.39%
Charles Kummeth
855,000US$854.1k0%no data
0.34%
Fosun International Holdings Ltd.
743,935US$743.2k0%no data
0.31%
Todd Bennett
681,521US$680.8k0%no data
0.3%
Jeffrey Hawkins
659,939US$659.3k60.7%no data
0.22%
Christian Lapointe
479,888US$479.4k7.18%no data
0.21%
Charles Schwab Investment Management, Inc.
457,571US$457.1k-2.26%no data
0.19%
Teachers Insurance and Annuity Association-College Retirement Equities Fund
418,264US$417.9k0.93%no data
0.18%
XTX Markets Limited
389,254US$388.9k-15.7%0.01%
0.18%
BNY Asset Management
383,088US$382.7k-5.71%no data
0.16%
Invesco Capital Management LLC
359,022US$358.7k1.75%no data
0.16%
IEQ Capital, LLC
357,688US$357.3k0%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/06/19 17:17
End of Day Share Price 2026/06/18 00:00
Earnings2026/03/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Quantum-Si incorporated is covered by 3 analysts. 3 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Scott HenryAlliance Global Partners
Kyle MiksonCanaccord Genuity
Swayampakula RamakanthH.C. Wainwright & Co.