Charles R. Kummeth insider trades: Quantum-Si (QSI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Charles reports to the SEC
Open-market buys and sales
23 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 5, 2026 | QSI | ↑ Buy | 500,000 | $0.92 | $460K | Direct | Mar 9, 2026 (4d) |
| Aug 12, 2024 | QSI | ↑ Buy | 170,000 | $0.87 | $148K | Direct | Aug 13, 2024 (1d) |
| Jul 21, 2023 | TECH | ↓ Sell | 80,000 | $88.36 | $7.1M | Direct | Jul 25, 2023 (4d) |
| Jun 7, 2023 | TECH | ↓ Sell | 322 | $83.00 | $27K | Direct | Jun 9, 2023 (2d) |
| Jun 7, 2022 | TECH | ↓ Sell | 5,104 | $365.00 | $1.9M | Direct | Jun 9, 2022 (2d) |
| Jun 18, 2021 | TECH | ↓ Sell | 12,498 | $449.67 | $5.6M | Direct | Jun 21, 2021 (3d) |
| Jun 14, 2021 | TECH | ↓ Sell | 7,481 | $449.15 | $3.4M | Direct | Jun 16, 2021 (2d) |
| Jan 15, 2021 | TECH | ↓ Sell | 20,000 | $344.00 | $6.9M | Direct | Jan 20, 2021 (5d) |
| Dec 7, 2020 | TECH | ↓ Sell | 5,000 | $308.00 | $1.5M | Direct | Dec 9, 2020 (2d) |
| Jan 6, 2020 | TECH | ↓ Sell | 10,276 | $217.28 | $2.2M | Direct | Jan 8, 2020 (2d) |
| Jan 3, 2020 | TECH | ↓ Sell | 27,842 | $218.30 | $6.1M | Direct | Jan 6, 2020 (3d) |
| Dec 24, 2019 | TECH | ↓ Sell | 1,130 | $222.12 | $251K | Direct | Dec 27, 2019 (3d) |
| Dec 20, 2019 | TECH | ↓ Sell | 5,767 | $222.06 | $1.3M | Direct | Dec 23, 2019 (3d) |
| Dec 20, 2019 | TECH | ↓ Sell | 5,767 | $222.06 | $1.3M | Direct | Dec 23, 2019 (3d) |
| Dec 10, 2019 | TECH | ↓ Sell | 703 | $222.01 | $156K | Direct | Dec 12, 2019 (2d) |
| Nov 29, 2019 | TECH | ↓ Sell | 11,872 | $222.13 | $2.6M | Direct | Dec 2, 2019 (3d) |
| Sep 9, 2019 | TECH | ↑ Buy | 100 | $185.00 | $19K | By Step-Daughter | Sep 11, 2019 (2d) |
| Sep 9, 2019 | TECH | ↑ Buy | 100 | $185.00 | $19K | By Step-Son | Sep 11, 2019 (2d) |
| Jul 10, 2019 | TECH | ↓ Sell | 16,969 | $213.12 | $3.6M | Direct | Jul 12, 2019 (2d) |
| Jul 9, 2019 | TECH | ↓ Sell | 33,031 | $212.60 | $7.0M | Direct | Jul 10, 2019 (1d) |
| Jun 7, 2018 | TECH | ↓ Sell | 8,000 | $160.00 | $1.3M | Direct | Jun 8, 2018 (1d) |
| Nov 19, 2014 | SPA | ↑ Buy | 2,000 | $23.50 | $47K | Direct | Nov 20, 2014 (1d) |
| Mar 28, 2013 | SPA | ↑ Buy | 2,000 | $13.34 | $27K | Direct | Apr 4, 2013 (7d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other QSI insiders
Open-market trades in the last 12 months
About Charles R. Kummeth's insider trades
Charles R. Kummeth is an insider at Quantum-Si (QSI). Since Mar 28, 2013, Charles has reported 6 open-market purchases worth $719K and 17 sales worth $52.2M on SEC Form 4. In the last 12 months: 1 buy ($460K).
Their filings also include grants and awards (37 filings), option exercises (30 filings), shares withheld for taxes (16 filings), shares returned to the company (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every QSI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.