Ramiro Guerrero bought $184k of MAIA
director at MAIA Biotechnology, Inc.. 133,790 shares at an average of $1.38, traded Aug 26, 2026, filed Sep 1, 2026.
Score components
- +15RoleDirector
- +12Trade size$184k at market
- +6Relative to holdingsHoldings up 22%
- +8Price context53% below the 52-week high
- 0ClusterNo other insider buying within 14 days
- +5Repeat buying3 buys in 90 days
- -5Track recordMedian 6-month excess return -21% over 5 past buys
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001878313-26-000082, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 26, 2026 | POpen-market purchase Common Stock | +8,931 | $1.39 | $12k | 610,842 | 44 d ago |
| Aug 27, 2026 | POpen-market purchase Common Stock | +78,239 | $1.39 | $109k | 689,081 | 44 d ago |
| Aug 28, 2026 | POpen-market purchase Common Stock | +46,620 | $1.35 | $63k | 735,701 | 44 d ago |
Related signals
Other insiders at MAIA Biotechnology, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 54Moderate | MAIA Biotechnology, Inc. | Vlad Vitoc Chief Executive Officer | $100k 73,000 shares | +7% | |
| 46Moderate | MAIA Biotechnology, Inc. | Ramiro Guerrero director | $50k 37,595 shares | +5% | |
| 18Weak | MAIAbuy MAIA Biotechnology, Inc. | Ramiro Guerrero director | $2,386 1,794 shares | +0% | |
| 18Weak | MAIAbuy MAIA Biotechnology, Inc. | Ramiro Guerrero director | $16k 11,899 shares | +2% | |
| 38Weak | MAIA Biotechnology, Inc. | Sergei Gryaznov Chief Scientific Officer | $2,690 2,000 shares | +4% | |
| 46Moderate | MAIA Biotechnology, Inc. | Stan Smith director | $100k 75,000 shares | +5% | |
| 61Notable | MAIA Biotechnology, Inc. | Vlad Vitoc Chief Executive Officer | $101k 72,700 shares | +8% | |
| 10Weak | MAIAbuy MAIA Biotechnology, Inc. | Stan Smith director | $9,959 2,700 shares | +0% | |
| 51Moderate | MAIA Biotechnology, Inc. | Steven M Chaouki director | $50k 40,849 shares | +37% | |
| 51Moderate | MAIA Biotechnology, Inc. | Ngar Yee Louie director | $100k 81,699 shares | +7% |
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.