Sergei Gryaznov insider trades: MAIA Biotechnology (MAIA) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Sergei reports to the SEC
Open-market buys and sales
2 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 1, 2026 | MAIA | ↑ Buy | 2,000 | $1.34 | $3K | Direct | Jun 2, 2026 (1d) |
| Aug 1, 2022 | MAIA | ↑ Buy | 3,000 | $5.00 | $15K | Direct | Aug 2, 2022 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MAIA insiders
Open-market trades in the last 12 months
About Sergei Gryaznov's insider trades
Sergei Gryaznov is Chief Scientific Officer at MAIA Biotechnology (MAIA). Since Aug 1, 2022, Sergei has reported 2 open-market purchases worth $18K and no sales on SEC Form 4. In the last 12 months: 1 buy ($3K).
Their filings also include grants and awards (9 filings), option exercises (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 MAIA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.