Quantum-Si Inc

QSI
As of the close on Sep 25, 2026
Price
$0.83
Market cap
$166M
P/E (diluted TTM)
—
The fourth quarter's per-share figure could not be confirmed from the annual report
EPS (TTM)
—
The fourth quarter's per-share figure could not be confirmed from the annual report
Dividend yield
—
Dividend records do not yet cover the latest payments

Figures shown here come from public SEC filings. Dates beside each section show the available history.

How Quantum-Si Inc Makes Money

Follow each dollar of revenue through to what shareholders keep.

From revenue to net income

Pick a year or quarter. Each band's width is its dollar amount.

Source: Quantum-Si Inc — 10-Q filed Aug 13, 2026

Financial Summary

Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.

Loading financial history…

SEC filings supply these figures; updates after the dates shown are not included. This page includes 5 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jun 24, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.

Ownership

Who holds the shares, as reported in SEC ownership filings.

Reported 13F positions

Each row shows what a filer reported for one date, not a current position. The link opens that filing.

Filer Report date Shares Value Filing
Stratos Wealth Advisors, LLC 2026-03-31 15,036 $11.6K SEC filing
TD Waterhouse Canada Inc. 2026-03-31 300 $224 SEC filing
DEUTSCHE BANK AG\ 2026-03-31 119,028 $91.7K SEC filing
PINNEY & SCOFIELD, INC. 2026-03-31 3,680 $2.85K SEC filing
Sterling Capital Management LLC 2026-03-31 5,672 $4.39K SEC filing
JONES FINANCIAL COMPANIES LLLP 2026-03-31 109,900 $84K SEC filing
DLK Investment Management, LLC 2026-03-31 16,750 $13K SEC filing
STATE STREET CORP 2026-03-31 3,770,689 $2.92M SEC filing
OSAIC HOLDINGS, INC. 2026-03-31 7,970 $6.14K SEC filing
SG Americas Securities, LLC 2026-03-31 33,677 Not shown SEC filing
Amova Asset Management Americas, Inc. 2026-03-31 4,391,666 $3.43M SEC filing
ROTHSCHILD INVESTMENT LLC 2026-03-31 1,688 $1.31K SEC filing
MERCER GLOBAL ADVISORS INC /ADV 2026-03-31 55,195 $42.7K SEC filing
CIBC Bancorp USA Inc. 2026-03-31 208,510 $161K SEC filing
HOLLENCREST CAPITAL MANAGEMENT 2026-03-31 40,111 $31K SEC filing
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 2026-03-31 457,571 $354K SEC filing
Focus Partners Advisor Solutions, LLC 2026-03-31 16,473 $12.8K SEC filing
NEW YORK STATE COMMON RETIREMENT FUND 2026-03-31 26,084 $20.2K SEC filing
Capital Investment Advisory Services, LLC 2026-03-31 20,000 $15.5K SEC filing
Kovack Advisors, Inc. 2026-03-31 30,000 $19.7K SEC filing
  • Each value is checked against Quantum-Si Inc's share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
  • Value not shown for 1 row: the filed value is about 1,000 times too small for the share count at Quantum-Si Inc's share price.

120 filers have only one report here.

Unusually large insider trades

Each trade is compared with the other insider trades of the same kind in the same security among Quantum-Si Inc's recent filings on file. Size alone is context, not a prediction or evidence of improper trading.

  • 2026-04-21 · Hawkins Jeffrey Alan: Larger than 54 of the 59 other insider sales of Class A Common Stock on file. SEC filing
  • 2026-04-20 · Hawkins Jeffrey Alan: Larger than 54 of the 59 other insider sales of Class A Common Stock on file. SEC filing
  • 2026-03-05 · Kummeth Charles R.: Larger than all 12 other insider purchases of Class A Common Stock on file. SEC filing
  • 2024-12-27 · ROTHBERG JONATHAN M: Larger than 58 of the 59 other insider sales of Class A Common Stock on file. SEC filing
  • 2024-12-27 · ROTHBERG JONATHAN M: Larger than all 59 other insider sales of Class A Common Stock on file. SEC filing
  • 2024-08-09 · Kummeth Charles R.: Larger than 11 of the 12 other insider purchases of Class A Common Stock on file. SEC filing
  • 2022-12-15 · RAKIN KEVIN: Larger than 56 of the 59 other insider sales of Class A Common Stock on file. SEC filing
  • 2022-01-10 · Stark John VIII: Larger than 57 of the 59 other insider sales of Class A Common Stock on file. SEC filing

Independent insiders buying near the same time

  • 2026-03-05–2026-03-05: 2 event(s) across 2 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing )
  • 2024-08-09–2024-08-12: 5 event(s) across 4 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing , filing )
  • 2024-03-14–2024-03-15: 2 event(s) across 2 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing )

Purchases & sales (open market or private)

SecurityCodePriceFiling
2026-06-23LaPointe Christian · GC & Corp. SecretaryClass A Common StockS — Open market or private sale−7,7940.90SEC filing
2026-06-23Vieceli John S. · Chief Product OfficerClass A Common StockS — Open market or private sale−15,1120.90SEC filing
2026-06-23Keyes Jeffry R. · Chief Financial OfficerClass A Common StockS — Open market or private sale−4,1170.90SEC filing
2026-06-23Hawkins Jeffrey Alan · President & CEOClass A Common StockS — Open market or private sale−11,3110.90SEC filing
2026-06-22LaPointe Christian · GC & Corp. SecretaryClass A Common StockS — Open market or private sale−7,7940.96SEC filing
2026-06-22Hawkins Jeffrey Alan · President & CEOClass A Common StockS — Open market or private sale−11,3100.96SEC filing
2026-06-22Keyes Jeffry R. · Chief Financial OfficerClass A Common StockS — Open market or private sale−4,1160.96SEC filing
2026-06-22Vieceli John S. · Chief Product OfficerClass A Common StockS — Open market or private sale−15,1110.96SEC filing

Showing 8 of 20 rows

Grants, exercises, tax & gifts

SecurityCodeFiling
2026-05-18Dowdy Paula · DirectorStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing
2026-05-18ROTHBERG JONATHAN M · Director, 10% ownerStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing
2026-05-18Makes Brigid · DirectorStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing
2026-05-18RAKIN KEVIN · DirectorStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing
2026-05-18Jafri Amir · DirectorStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing
2026-05-18Kenny John P. · DirectorStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing
2026-05-18Fattori Ruth A · DirectorStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing
2026-05-18Kummeth Charles R. · DirectorStock Option (right to buy)A — Grant, award, or other acquisition+251,185SEC filing

Showing 8 of 11 rows

Other activity

SecurityCodeFiling
2022-12-20RAKIN KEVIN · DirectorClass A Common StockJ — Other acquisition or disposition−601,000SEC filing

Showing 1 of 1 rows

These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.