Quantum-Si Inc. (QSI)
Nasdaq · Measuring & Controlling Devices, Nec · Manufacturing · CIK 1816431 · fiscal year ends in Dec
Closing price $1.45 on 30 Oct 2026; 52-week range $0.70 to $2.15.
Key figures
The last twelve months reported, with the latest price and balance sheet.
- Revenue, last twelve months
- $1.6M
- Revenue growth
- -53.0%
- Net income, last twelve months
- -$98.5M
- Earnings per share
- -$0.46
- Gross margin
- 35.0%
- Operating margin
- -6887.8%
- Net margin
- -6138.3%
- Return on equity
- -54.7%
- Market value
- $317.4M
- Cash
- $23.7M
- Debt
- $0
- Debt to equity
- 0.00
- Shares outstanding
- 218.9M
Financial statements
Revenue, profit and cash flow by fiscal year, each year linked to its annual report.
| Fiscal year | Year end | Revenue | Operating income | Net income | EPS | Free cash flow | Filing |
|---|---|---|---|---|---|---|---|
| FY2025 | 31 Dec 2025 | $2.4M | -$116.1M | -$101.3M | -$0.51 | -$97.2M | 10-K filed 3 Mar 2026 |
| FY2024 | 31 Dec 2024 | $3.1M | -$108.6M | -$101.0M | -$0.71 | -$92.4M | 10-K filed 3 Mar 2025 |
| FY2023 | 31 Dec 2023 | $1.1M | -$111.2M | -$96.0M | -$0.68 | -$98.5M | 10-K filed 29 Feb 2024 |
| FY2022 | 31 Dec 2022 | $0 | -$123.8M | -$132.4M | -$0.95 | -$101.3M | 10-K filed 29 Feb 2024 |
| FY2021 | 31 Dec 2021 | $0 | -$96.9M | -$95.0M | -$1.19 | -$72.6M | 10-K filed 29 Feb 2024 |
By quarter
| Quarter | Quarter end | Revenue | Net income | EPS |
|---|---|---|---|---|
| Q2 FY2026 | 30 Jun 2026 | $344.0K | -$23.5M | -$0.11 |
| Q1 FY2026 | 31 Mar 2026 | $258.0K | -$21.7M | -$0.10 |
| Q4 FY2025 | 31 Dec 2025 | $451.0K | -$17.6M | -$0.08 |
| Q3 FY2025 | 30 Sep 2025 | $552.0K | -$35.7M | -$0.17 |
| Q2 FY2025 | 30 Jun 2025 | $591.0K | -$28.8M | -$0.16 |
| Q1 FY2025 | 31 Mar 2025 | $842.0K | -$19.2M | -$0.11 |
| Q4 FY2024 | 31 Dec 2024 | $1.2M | -$33.1M | -$0.23 |
| Q3 FY2024 | 30 Sep 2024 | $787.0K | -$25.3M | -$0.18 |
Revenue by segment
As the company reports it in the segment note of its annual report.
By product, FY2025
| Segment | Revenue | Share |
|---|---|---|
| Product | $2.3M | 93.8% |
| Service | $150.0K | 6.2% |
By region, FY2025
| Segment | Revenue | Share |
|---|---|---|
| International | $1.7M | 71.3% |
| United States | $699.0K | 28.7% |
Company events
The newest 8-K filings of 95 held.
| Filed | Form | Event | Items |
|---|---|---|---|
| 15 Oct 2026 | 8-K | Other events | 8.01, 9.01 |
| 8 Oct 2026 | 8-K | Investor update | 7.01, 9.01 |
| 29 Sep 2026 | 8-K | Investor update | 7.01, 9.01 |
| 13 Aug 2026 | 8-K | Results | 2.02, 9.01 |
| 24 Jul 2026 | 8-K | Delisting notice | 3.01 |
| 24 Jun 2026 | 8-K | Material agreement, New debt | 1.01, 2.03, 9.01 |
| 15 May 2026 | 8-K | Shareholder vote | 5.07 |
| 7 May 2026 | 8-K | Results | 2.02, 9.01 |
| 3 Mar 2026 | 8-K | Results | 2.02, 9.01 |
| 29 Dec 2025 | 8-K | Investor update | 7.01, 9.01 |
| 20 Nov 2025 | 8-K | Investor update | 7.01, 9.01 |
| 5 Nov 2025 | 8-K | Results | 2.02, 9.01 |
Every filing
The newest filings with the SEC of 205 held.
| Filed | Form | Period |
|---|---|---|
| 15 Oct 2026 | 8-K | 14 Oct 2026 |
| 8 Oct 2026 | 8-K | 8 Oct 2026 |
| 29 Sep 2026 | 8-K | 28 Sep 2026 |
| 13 Aug 2026 | 10-Q | 30 Jun 2026 |
| 13 Aug 2026 | 8-K | 13 Aug 2026 |
| 24 Jul 2026 | 8-K | 23 Jul 2026 |
| 24 Jun 2026 | 8-K | 18 Jun 2026 |
| 10 Jun 2026 | 25-NSE | – |
| 22 May 2026 | SD | – |
| 15 May 2026 | 8-K | 15 May 2026 |
| 7 May 2026 | 10-Q | 31 Mar 2026 |
| 7 May 2026 | 8-K | 7 May 2026 |
Insider trades
Form 4 trades by officers, directors and 10% owners, last 12 months.
| Traded | Insider | Type | Shares | Price | Value | Held after | Form 4 |
|---|---|---|---|---|---|---|---|
| 22 Sep 2026 | Hawkins Jeffrey Alan, President & CEO | Sale outside a trading plan | 9,709 | $0.76 | $7.4K | 3,639,950 | 23 Sep 2026 |
| 22 Sep 2026 | Keyes Jeffry R., Chief Financial Officer | Sale outside a trading plan | 2,493 | $0.76 | $1.9K | 1,716,684 | 23 Sep 2026 |
| 22 Sep 2026 | Lapointe Christian, GC & Corp. Secretary | Sale outside a trading plan | 4,721 | $0.76 | $3.6K | 1,167,913 | 23 Sep 2026 |
| 21 Sep 2026 | Hawkins Jeffrey Alan, President & CEO | Sale outside a trading plan | 20,143 | $0.76 | $15.2K | 3,649,659 | 23 Sep 2026 |
| 21 Sep 2026 | Keyes Jeffry R., Chief Financial Officer | Sale outside a trading plan | 5,172 | $0.76 | $3.9K | 1,719,177 | 23 Sep 2026 |
| 21 Sep 2026 | Lapointe Christian, GC & Corp. Secretary | Sale outside a trading plan | 9,795 | $0.76 | $7.4K | 1,172,634 | 23 Sep 2026 |
| 23 Jun 2026 | Lapointe Christian, GC & Corp. Secretary | Sale outside a trading plan | 7,794 | $0.90 | $7.0K | 1,182,429 | 24 Jun 2026 |
| 23 Jun 2026 | Keyes Jeffry R., Chief Financial Officer | Sale outside a trading plan | 4,117 | $0.90 | $3.7K | 1,724,349 | 24 Jun 2026 |
| 23 Jun 2026 | Vieceli John S., Chief Product Officer | Sale outside a trading plan | 15,112 | $0.90 | $13.6K | 1,140,434 | 24 Jun 2026 |
| 23 Jun 2026 | Hawkins Jeffrey Alan, President & CEO | Sale outside a trading plan | 11,311 | $0.90 | $10.2K | 3,669,802 | 24 Jun 2026 |
| 22 Jun 2026 | Lapointe Christian, GC & Corp. Secretary | Sale outside a trading plan | 7,794 | $0.96 | $7.5K | 1,190,223 | 24 Jun 2026 |
| 22 Jun 2026 | Keyes Jeffry R., Chief Financial Officer | Sale outside a trading plan | 4,116 | $0.96 | $3.9K | 1,728,466 | 24 Jun 2026 |
Planned insider sales
Form 144 notices, filed when the sell order goes to the broker.
| Filed | Seller | Shares | Value | Planned sale |
|---|---|---|---|---|
| 23 Sep 2026 | Keyes Jeffry R., Officer | 7,665 | $5.8K | 21 Sep 2026 |
| 23 Sep 2026 | LaPointe Christian, Officer | 14,516 | $11.0K | 21 Sep 2026 |
| 23 Sep 2026 | Hawkins Jeffrey Alan, Officer, Director | 29,852 | $22.6K | 21 Sep 2026 |
| 24 Jun 2026 | Keyes Jeffry R., Officer | 8,233 | $7.6K | 22 Jun 2026 |
| 24 Jun 2026 | LaPointe Christian, Officer | 15,588 | $14.5K | 22 Jun 2026 |
| 24 Jun 2026 | Hawkins Jeffrey Alan, Officer, Director | 22,621 | $21.0K | 22 Jun 2026 |
| 24 Jun 2026 | Vieceli John S., Officer | 30,223 | $28.1K | 22 Jun 2026 |
| 22 Apr 2026 | Keyes Jeffry R., Officer | 74,763 | $74.8K | 20 Apr 2026 |
| 22 Apr 2026 | Hawkins Jeffrey Alan, Officer, Director | 167,424 | $167.5K | 20 Apr 2026 |
| 24 Mar 2026 | Keyes Jeffry R., Officer | 8,655 | $7.2K | 20 Mar 2026 |
Large holders
Schedule 13D and 13G filings by holders of more than 5% of the voting shares.
| Filed | Holder | Schedule | Stake | Shares |
|---|---|---|---|---|
| 28 Aug 2026 | ROTHBERG JONATHAN M | 13D amended | 100% | 19.9M |
| 29 Jul 2026 | BlackRock, Inc. | 13G amended | 2.3% | 4.6M |
Short interest
Shares sold short and not yet bought back, on each FINRA settlement date.
| Settlement | Shares short | Change | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 13.2M | +11.64% | 1 |
| 30 Sep 2026 | 11.8M | -9.32% | 2.46 |
| 15 Sep 2026 | 13.0M | -9.68% | 10.32 |
| 31 Aug 2026 | 14.4M | +1.2% | 4.78 |
| 14 Aug 2026 | 14.3M | -7.42% | 4.68 |
| 31 Jul 2026 | 15.4M | +9.12% | 5.91 |
| 15 Jul 2026 | 14.1M | -18.79% | 4.24 |
| 30 Jun 2026 | 17.4M | -22.72% | 2.72 |
Funds that hold it
From each fund's latest Form 13F.
182 funds held it at 30 Jun 2026: 63 added and 56 trimmed in the quarter. The largest:
| Fund | Shares | Value | Change in the quarter |
|---|---|---|---|
| Vanguard Capital Management LLC | 7,578,208 | $6.7M | +556,301 |
| ARK Investment Management LLC | 7,167,738 | $6.3M | +288,839 |
| BlackRock, Inc. | 5,225,352 | $4.6M | -8,189,597 |
| Amova Asset Management Americas, Inc. | 3,885,230 | $3.5M | -506,436 |
| Sumitomo Mitsui Trust Group, Inc. | 3,885,230 | $3.4M | -506,436 |
| Millennium Management LLC | 3,131,726 | $2.8M | +3,131,726 |
| UBS Group AG | 2,561,897 | $2.3M | +859,370 |
| AQR Capital Management LLC | 2,348,665 | $2.1M | -43,514 |
| Geode Capital Management, LLC | 2,236,526 | $2.0M | -1,598,595 |
| Jane Street Group, LLC | 2,142,735 | $1.9M | +2,142,735 |
Peers
Companies in the same industry.
- Thermo Fisher Scientific Inc. (TMO): revenue $47.4B, market value $258.2B
- Rockwell Automation, Inc. (ROK): revenue $9.0B, market value $48.5B
- Trimble Inc. (TRMB): revenue $3.8B, market value $15.1B
- Onto Innovation Inc. (ONTO): revenue $1.1B, market value $9.9B
- Mirion Technologies, Inc. (MIR): revenue $1.1B, market value $4.5B