Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MAIA Biotechnology, Inc.MAIA · Entity 6919 | Head of Finance | May 29, 2026 | June 01, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
MAIA Biotechnology, Inc.
Report date May 29, 2026 · Filed June 01, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Stock OptionsSEC Table II · derivative / convertible security · Conversion / exercise price $1.39 · Expires 2036-05-29 | Direct | 60,000 |
Reported balance
After 2026-05-29 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-05-29 · Grant · Acquired 60,000 · Balance 60,000 F1: The stock options, granted on May 29, 2026 pursuant to MAIA Biotechnology, Inc's 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary date of the grant and the remaining options to vest ratably monthly thereafter for 36 months. |
Filing footnotes · ownership attribution and instrument terms
F1: The stock options, granted on May 29, 2026 pursuant to MAIA Biotechnology, Inc's 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary date of the grant and the remaining options to vest ratably monthly thereafter for 36 months.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 29, 2026 Filed Jun 1, 2026 12:49 UTC | MAIA Biotechnology, Inc. MAIA · Entity 6919 | GrantStock Options · Derivative | 60,000 | $0.00 Strike: $1.39 | $0.00 |
DisclosureSEC source: 0001878313-26-000049 · form4.xml · derivative · entry 1 Himmelreich Jeffrey C · CIK 0002001189 · Head of Finance 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,000 Underlying: Common Stock · 60,000 shares Expires 2036-05-29 F1 · derivative.exercise_date: The stock options, granted on May 29, 2026 pursuant to MAIA Biotechnology, Inc's 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary date of the grant and the remaining options to vest ratably monthly thereafter for 36 months. Read SEC document |
| April 10, 2026 Filed Apr 14, 2026 12:42 UTC | MAIA Biotechnology, Inc. MAIA · Entity 6919 | GrantStock Options · Derivative | 30,000 | $0.00 Strike: $1.28 | $0.00 |
DisclosureSEC source: 0001878313-26-000044 · form4.xml · derivative · entry 1 Himmelreich Jeffrey C · CIK 0002001189 · Head of Finance 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,000 Underlying: Common Stock · 30,000 shares Expires 2036-04-10 F1 · derivative.exercise_date: The stock options, granted on April 10, 2026 pursuant to MAIA Biotechnology, Inc's 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary date of the grant and the remaining options to vest ratably monthly thereafter for 36 months. Read SEC document |
| May 14, 2025 Filed May 16, 2025 20:13 UTC | MAIA Biotechnology, Inc. MAIA · Entity 6919 | GrantStock Options · Derivative | 40,000 | $0.00 Strike: $1.76 | $0.00 |
DisclosureSEC source: 0001127602-25-014667 · form4.xml · derivative · entry 1 Himmelreich Jeffrey C · CIK 0002001189 · Head of Finance 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 40,000 Underlying: Common Stock · 40,000 shares Expires 2035-05-14 F1 · derivative.exercise_date: The stock options, granted on May 14, 2025 pursuant to MAIA Biotechnology, Inc.'s 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary of the date of the grant and the remaining options to vest ratably monthly thereafter for 36 months. Read SEC document |
| February 10, 2025 Filed Feb 12, 2025 21:09 UTC | MAIA Biotechnology, Inc. MAIA · Entity 6919 | GrantStock Options · Derivative | 10,000 | $0.00 Strike: $1.81 | $0.00 |
DisclosureSEC source: 0001127602-25-004347 · form4.xml · derivative · entry 1 Himmelreich Jeffrey C · CIK 0002001189 · Head of Finance 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,000 Underlying: Common Stock · 10,000 shares Expires 2035-02-10 F1 · derivative.exercise_date: The stock options, granted on February 10, 2025 pursuant to MAIA Biotechnology, Inc.'s 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary of the date of the grant and the remaining options to vest ratably monthly thereafter for 36 months. Read SEC document |
| April 26, 2024 Filed Apr 30, 2024 21:03 UTC | MAIA Biotechnology, Inc. MAIA · Entity 6919 | GrantStock Options · Derivative | 10,000 | $0.00 Strike: $2.94 | $0.00 |
DisclosureSEC source: 0001127602-24-013656 · form4.xml · derivative · entry 1 Himmelreich Jeffrey C · CIK 0002001189 · Head of Finance 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,000 Underlying: Common Stock · 10,000 shares Expires 2034-04-26 F1 · derivative.exercise_date: The stock options, granted on April 26, 2024 pursuant to MAIA Biotechnology, Inc.'s 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversay of the date of the grant and the remaining options to vest ratably monthly thereafter for 36 months. Read SEC document |
| January 24, 2024 Filed Jan 26, 2024 21:07 UTC | MAIA Biotechnology, Inc. MAIA · Entity 6919 | GrantStock Options · Derivative | 10,000 | $0.00 Strike: $1.41 | $0.00 |
DisclosureSEC source: 0001127602-24-002267 · form4.xml · derivative · entry 1 Himmelreich Jeffrey C · CIK 0002001189 · Head of Finance 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,000 Underlying: Common Stock · 10,000 shares Expires 2034-01-24 F1 · derivative.exercise_date: The stock options, granted on January 24, 2024 pursuant to MAIA Biotechnology, Inc.'s 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest on a 4-year vesting schedule, with 25% of the options to vest on the first anniversary of the date of the grant and the remaining options to vest ratably monthly thereafter for 36 months. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.