Insider · CIK 0002032947
John S. Vieceli
officer
Files at QSI (Quantum-Si Inc). First filing Dec 26, 2024, latest Dec 22, 2025.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 4
$0 bought, $102k sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
QSI: Quantum-Si Inc
QSIOct 9, 2026 · close 1.53
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 35Weak | Quantum-Si Inc | $28k 21,927 shares | -3% | +27% from low-70% from high | |
| 36Weak | Quantum-Si Inc | $33k 19,686 shares | -2% | +169% from low-60% from high | |
| 36Weak | Quantum-Si Inc | $35k 21,923 shares | -3% | +161% from low-62% from high | |
| 23Weak | Quantum-Si Inc | $5,570 4,306 shares | -3% | - |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 22, 2025 | QSI Quantum-Si Inc | SOpen-market sale Class A Common Stock | -21,927 | $1.28 | $28k | 800,973 | Dec 22, 2025 |
| Sep 22, 2025 | QSI Quantum-Si Inc | SOpen-market sale Class A Common Stock | -9,843 | $1.68 | $17k | 832,743 | Sep 24, 2025 |
| Sep 23, 2025 | QSI Quantum-Si Inc | SOpen-market sale Class A Common Stock | -9,843 | $1.64 | $16k | 822,900 | Sep 24, 2025 |
| Jun 23, 2025 | QSI Quantum-Si Inc | SOpen-market sale Class A Common Stock | -21,923 | $1.61 | $35k | 842,586 | Jun 24, 2025 |
| Dec 23, 2024 | QSI Quantum-Si Inc | SOpen-market sale Class A Common Stock | -4,306 | $1.29 | $5,570 | 160,493 | Dec 26, 2024 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.