As of the latest Form 4 filed Jun 24, 2026.
What QuantumSi Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 20 most recent filings for QSI.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-24 | 2026-06-23 | LaPointe Christian GC & Corp. Secretary | SSale | −7.79K | $0.90 | $7.01K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-23 | Keyes Jeffry R. Chief Financial Officer | SSale | −4.12K | $0.90 | $3.70K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-23 | Vieceli John S. Chief Product Officer | SSale | −15.1K | $0.90 | $13.6K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-23 | Hawkins Jeffrey Alan President & CEO | SSale | −11.3K | $0.90 | $10.2K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | LaPointe Christian GC & Corp. Secretary | SSale | −7.79K | $0.96 | $7.46K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | Keyes Jeffry R. Chief Financial Officer | SSale | −4.12K | $0.96 | $3.94K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | Vieceli John S. Chief Product Officer | SSale | −15.1K | $0.96 | $14.5K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | Hawkins Jeffrey Alan President & CEO | SSale | −11.3K | $0.96 | $10.8K | No | Form 4 ↗ |
| 2026-04-22 | 2026-04-21 | Keyes Jeffry R. Chief Financial Officer | SSale | −37.4K | $1.00 | $37.2K | No | Form 4 ↗ |
| 2026-04-22 | 2026-04-21 | Hawkins Jeffrey Alan President & CEO | SSale | −83.7K | $1.00 | $83.3K | No | Form 4 ↗ |
| 2026-04-22 | 2026-04-20 | Keyes Jeffry R. Chief Financial Officer | SSale | −37.4K | $1.01 | $37.6K | No | Form 4 ↗ |
| 2026-04-22 | 2026-04-20 | Hawkins Jeffrey Alan President & CEO | SSale | −83.7K | $1.01 | $84.2K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-23 | Keyes Jeffry R. Chief Financial Officer | SSale | −4.42K | $0.83 | $3.66K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-23 | LaPointe Christian GC & Corp. Secretary | SSale | −6.11K | $0.83 | $5.05K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-23 | Vieceli John S. Chief Product Officer | SSale | −11.2K | $0.83 | $9.29K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-23 | Hawkins Jeffrey Alan President & CEO | SSale | −12.1K | $0.83 | $10.0K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-20 | Keyes Jeffry R. Chief Financial Officer | SSale | −4.23K | $0.85 | $3.59K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-20 | LaPointe Christian GC & Corp. Secretary | SSale | −5.85K | $0.85 | $4.96K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-20 | Vieceli John S. Chief Product Officer | SSale | −10.8K | $0.85 | $9.13K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-20 | Hawkins Jeffrey Alan President & CEO | SSale | −11.6K | $0.85 | $9.86K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also QSI’s full analysis or the market-wide insider trading feed. The tabs above jump to QSI’s other SEC data.
Source: SEC Form 4 filings for QSI, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.