QSI
insider transactionsQuantum-Si Inc — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 2 different insiders made open-market purchases in the last 365 days, totalling $564.4K.
Net shares · 365d
+46.4K
609.9K buy · 563.5K sell
Net value · 365d
-$165.2K
$564.4K in · $729.6K out
Sentiment · 365d
Net buying
44% buying · 56% selling
Open-market trades · 365d
33
609.9K buy · 563.5K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
Transactions · 365d
-
Buy·P
Director
$460.0K
500.0K sh · $0.92
Own +141%
-
Buy·P
Director
$104.4K
109.9K sh · $0.95
Own +69%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Mar 5, 2026 | Kummeth Charles R. | Buy P | 500.0K | $460.0K |
| Mar 5, 2026 | Dowdy Paula | Buy P | 109.9K | $104.4K |
Buy Sell Non-market (grant · exercise · gift)
About QSI insider trading
This page tracks insider transactions for Quantum-Si Inc (QSI) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.