Insider Tracker SEC Form 4 insider trades

out of date Data may be out of date: the last update was 2026-10-20 15:31 UTC. Filings accepted by the SEC since then are not shown yet.

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MAIA

MAIA Biotechnology, Inc.

60
Insider Score Band 60–79

Research score, not a recommendation.

Total bought$1.5M15 Form 4 purchases
Distinct insiders10open-market buyers
Lead insiderVitoc VladCEO
Cluster window2022-07-28 → 2022-09-19closed

Market data

Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.

–

partial data Price history is incomplete; missing inputs count as neutral in the score.

Why this score

Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.

Breadth number & diversity of participating insiders
100%
Seniority executive rank of buyers (CEO/CFO/Director)
85%
Commitment purchase size relative to company & holdings
50%
Context buying into stock weakness signals conviction
50%
Timing coordinated purchases within a tight window
91%
Routine-purchase discount × 1.00
Company-type / offering discount × 0.53
Net insider selling penalty − 0

Why are they buying?

No explanation has been generated for this cluster. The filings in the table below are the primary evidence.

Stock Price & Insider Purchase History

Daily close price with open-market insider purchases plotted over time

Loading price history…

Transactions

15 Form 4 trades · 10 insiders Sign in to download CSV
Purchases in this cluster, grouped by insider, largest first
Date Insider Role Shares Price Value Flags Filing
2022-08-01 → 2022-09-19 Smith Stan 27 purchases with a 63-day result · median -20.4% Director 202,700 $4.98 avg $1.0M
offering
2022-08-01 Smith Stan 200,000 $5.00 $1.0M
offering
SEC filing for Smith Stan (opens in a new tab)
2022-09-19 Smith Stan 2,700 $3.69 $10.0K
SEC filing for Smith Stan (opens in a new tab)
2022-07-28 → 2022-09-13 Guerrero Ramiro 13 purchases with a 63-day result · median -27.2% Director 38,082 $4.49 avg $171.0K
offering
2022-07-28 Guerrero Ramiro 9,000 $4.00 $36.0K
SEC filing for Guerrero Ramiro (opens in a new tab)
2022-08-01 Guerrero Ramiro 20,000 $5.00 $100.0K
offering
SEC filing for Guerrero Ramiro (opens in a new tab)
2022-08-30 Guerrero Ramiro 283 $3.97 $1.1K
SEC filing for Guerrero Ramiro (opens in a new tab)
2022-09-13 Guerrero Ramiro 8,799 $3.85 $33.9K
SEC filing for Guerrero Ramiro (opens in a new tab)
2022-08-01 Louie Ngar Yee history of Louie Ngar Yee's purchases Director 20,000 $5.00 $100.0K
offering
SEC filing for Louie Ngar Yee (opens in a new tab)
2022-08-01 Vitoc Vlad 14 purchases with a 63-day result · median -32.6% CEO 16,000 $5.00 avg $80.0K
offering
2022-08-01 Vitoc Vlad 10,000 $5.00 $50.0K
offering
SEC filing for Vitoc Vlad (opens in a new tab)
2022-08-01 Vitoc Vlad 6,000 $5.00 $30.0K
offering
SEC filing for Vitoc Vlad (opens in a new tab)
2022-08-01 Vlad Laurentiu history of Vlad Laurentiu's purchases Director 5,000 $5.00 $25.0K
offering
SEC filing for Vlad Laurentiu (opens in a new tab)
2022-08-01 MCGUIRE JOSEPH F history of MCGUIRE JOSEPH F's purchases CFO 5,000 $5.00 $25.0K
offering
SEC filing for MCGUIRE JOSEPH F (opens in a new tab)
2022-08-01 CHAOUKI STEVEN M history of CHAOUKI STEVEN M's purchases Director 5,000 $5.00 $25.0K
offering
SEC filing for CHAOUKI STEVEN M (opens in a new tab)
2022-08-01 Gryaznov Sergei history of Gryaznov Sergei's purchases Other C-suite 3,000 $5.00 $15.0K
offering
SEC filing for Gryaznov Sergei (opens in a new tab)
2022-08-01 Obrocea Mihail history of Obrocea Mihail's purchases Other C-suite 1,000 $5.00 $5.0K
offering
SEC filing for Obrocea Mihail (opens in a new tab)
2022-08-01 Luput Cristian 9 purchases with a 63-day result · median -46.8% Director 500 $5.00 $2.5K
offering
SEC filing for Luput Cristian (opens in a new tab)
Total $1.5M

Other buying runs at MAIA

A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.

After this run became a cluster: 21 days -27.7%63 days -30.4%126 days -25.8%

Other insider buying runs at this company, newest first, with the return against the benchmark that followed
Window Insiders Total Score 21 days63 days126 days Status
2026-06-01 3 $204.3K 66 +0.2%-8.1%– active
2025-11-21 → 2025-12-22 5 $423.8K 69 +17.4%+28.7%+1.3% closed
2024-11-01 4 $584.3K 56 -41.4%-38.9%-22.9% closed
2024-03-14 5 $529.7K 60 +34.9%+149.4%+84.7% closed
2022-12-20 → 2023-05-18 6 $801.8K 53 +1.4%-11.3%-50.0% closed