MarketPeel
Insider Trading Intelligence
SG

Sergei Gryaznov

MAIA
CHIEF SCIENTIFIC OFFICER · MAIA BIOTECHNOLOGY, INC. · CIK 0001913228
FILING MIX · LIFETIME87%/13%
BUYS
13
SELLS
2
TOTAL VALUE
$54.0K
COMPANIES
1
ACTIVE SINCE
Aug 2022
HOLDINGS NOW
46,511
AVG SELL PX
TRADE KIND
SHOWING 15 / 15
Trades · vs SPY
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Performance · forward returns vs SPY
1 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Sergei Gryaznov, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d1+0.00%-45.51%+0.54%-46.05%-46.05%
14d1+0.00%-36.67%+4.40%-41.07%-41.07%
30d1+0.00%-48.33%-3.79%-44.54%-44.54%
60d1+0.00%-57.69%-12.69%-45.00%-45.00%
90d1+0.00%-53.20%-5.59%-47.61%-47.61%
180d1+0.00%-42.50%-0.38%-42.12%-42.12%
1y1+0.00%-71.92%+12.94%-84.87%-84.87%
2y1+0.00%-58.59%+38.19%-96.78%-96.78%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
MAIA · 46,511 shares · as of Jun 1, 2026
0100,000200,000300,000400,0002023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 13 buys / 2 sellsCOVERAGE · 16 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASE
Chief Scientific Officer
2,000$1.35$2.7K46,511Jun 1, 2026Jun 2, 2026View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
400,000400,000May 29, 2026Jun 1, 2026View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
400,000400,000Apr 10, 2026Apr 14, 2026View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
200,000200,000May 14, 2025May 15, 2025View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
200,000200,000Feb 10, 2025Feb 11, 2025View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
141,000141,000Apr 26, 2024Apr 30, 2024View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
100,000100,000Jan 24, 2024Jan 26, 2024View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
75,98275,982May 31, 2023Jun 5, 2023View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
100,000100,000Mar 8, 2023Mar 10, 2023View →
MAIA
MAIA BIOTECHNOLOGY, INC.
SALE
Chief Scientific Officer
10,00040,000Dec 7, 2022Dec 8, 2022View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASE
Chief Scientific Officer
10,000$1.83$18.3K44,511Dec 7, 2022Dec 8, 2022View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
100,000100,000Sep 16, 2022Sep 20, 2022View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASE
Chief Scientific Officer
10,000$1.80$18.0K34,511Aug 24, 2022Aug 25, 2022View →
MAIA
MAIA BIOTECHNOLOGY, INC.
SALE
Chief Scientific Officer
10,00048,000Aug 24, 2022Aug 25, 2022View →
MAIA
MAIA BIOTECHNOLOGY, INC.
PURCHASE
Chief Scientific Officer
3,000$5.00$15.0K24,511Aug 1, 2022Aug 2, 2022View →
Other insiders · MAIA
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About this filer
CIK 0001913228
ROLE
Chief Scientific Officer
PRIMARY
MAIA
COMPANIES
1
ACTIVE SINCE
Aug 2022
MARKETPEEL · /INSIDER/0001913228DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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