BZAI · Insider Trading
Blaize Holdings, Inc. Common Stock
Every open-market purchase and sale reported by BZAI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-13 | Stephen Paul Patak | Chief Revenue Officer | MIXED | +1,891 | −$177 |
| 2026-09-01 | Kimberly Peterson Evans | General Counsel | MIXED | +12,022 | −$3.30K |
| 2026-08-17 | Kurt J Lauk | Director | A | +618,556 deriv. | — |
| 2026-07-13 | Stephen Paul Patak | Chief Revenue Officer | MIXED | +1,891 | −$749 |
| 2026-07-09 | Lane Bess | Director | J | +2,000,000 | — |
| 2026-07-08 | Anthony Cannestra | Director | MIXED | — | −$39.00K |
| 2026-07-06 | Harminder Sehmi | Chief Financial Officer | Sell | −40,609 | −$55.63K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Lane Bess | Director | 14,446,783 | $2.75M |
| Harminder Sehmi | Chief Financial Officer | 259,773 | $49.43K |
| Kimberly Peterson Evans | General Counsel | 60,033 | $11.42K |
| Anthony Cannestra | Director | 50,000 | $9.52K |
| Stephen Paul Patak | Chief Revenue Officer | 6,891 | $1.31K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the BZAI quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.