MAIA Biotechnology, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Smith Stan | — | Purchase | 1,862 | $3.43 | $6,387 | 542,390 | Mar 22, 2023 |
| Smith Stan | — | Purchase | 3,006 | $3.28 | $9,860 | 536,334 | Mar 21, 2023 |
| Guerrero Ramiro | — | Purchase | 1,333 | $3.64 | $4,852 | 301,709 | Mar 16, 2023 |
| Luput Cristian | — | Purchase | 5,382 | $3.99 | $21,474 | 289,068 | Mar 13, 2023 |
| Guerrero Ramiro | — | Purchase | 1,057 | $3.98 | $4,207 | 299,933 | Mar 10, 2023 |
| Smith Stan | — | Purchase | 3,582 | $4.03 | $14,435 | 533,328 | Mar 9, 2023 |
| Luput Cristian | — | Purchase | 627 | $4.22 | $2,646 | 281,572 | Mar 9, 2023 |
| Smith Stan | — | Purchase | 1,961 | $4.23 | $8,295 | 526,670 | Mar 8, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 1,581 | $4.21 | $6,656 | 801,121 | Mar 8, 2023 |
| Luput Cristian | — | Purchase | 527 | $4.24 | $2,234 | 279,257 | Mar 7, 2023 |
| Guerrero Ramiro | — | Purchase | 871 | $4.25 | $3,702 | 298,876 | Mar 6, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 1,439 | $4.24 | $6,101 | 799,540 | Mar 6, 2023 |
| Smith Stan | — | Purchase | 4,594 | $4.39 | $20,168 | 524,709 | Mar 3, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 45 | $4.42 | $199 | 795,159 | Mar 3, 2023 |
| Smith Stan | — | Purchase | 23 | $4.41 | $101 | 517,606 | Mar 1, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 282 | $4.48 | $1,263 | 795,114 | Feb 28, 2023 |
| Smith Stan | — | Purchase | 1,619 | $4.48 | $7,253 | 517,385 | Feb 27, 2023 |
| Smith Stan | — | Purchase | 1,073 | $4.48 | $4,807 | 515,547 | Feb 21, 2023 |
| Guerrero Ramiro | — | Purchase | 10 | $4.25 | $43 | 297,474 | Feb 17, 2023 |
| Smith Stan | — | Purchase | 62 | $4.25 | $264 | 514,171 | Feb 17, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 73 | $4.25 | $310 | 793,557 | Feb 17, 2023 |
| Luput Cristian | — | Purchase | 76 | $4.24 | $322 | 278,730 | Feb 16, 2023 |
| Luput Cristian | — | Purchase | 14 | $4.25 | $60 | 278,586 | Feb 15, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 10 | $4.25 | $43 | 793,484 | Feb 15, 2023 |
| Smith Stan | — | Purchase | 10 | $4.25 | $43 | 514,109 | Feb 14, 2023 |
| Smith Stan | — | Purchase | 337 | $4.25 | $1,432 | 513,901 | Feb 10, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 343 | $4.24 | $1,454 | 793,464 | Feb 10, 2023 |
| Smith Stan | — | Purchase | 9 | $4.25 | $38 | 513,337 | Jan 26, 2023 |
| Luput Cristian | — | Purchase | 504 | $3.88 | $1,956 | 278,572 | Jan 13, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 1,266 | $3.68 | $4,659 | 793,121 | Jan 4, 2023 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 410 | $3.50 | $1,435 | 789,531 | Jan 3, 2023 |
| Smith Stan | — | Purchase | 500 | $3.50 | $1,750 | 513,328 | Dec 29, 2022 |
| Smith Stan | — | Purchase | 1,266 | $3.41 | $4,317 | 511,357 | Dec 27, 2022 |
| Smith Stan | — | Purchase | 981 | $3.45 | $3,384 | 509,487 | Dec 22, 2022 |
| Smith Stan | — | Purchase | 4,048 | $3.53 | $14,289 | 507,376 | Dec 21, 2022 |
| Gryaznov Sergei | Chief Scientific Officer | Option Exercise | 10,000 | $1.83 | $18,300 | 44,511 | Dec 7, 2022 |
| Guerrero Ramiro | — | Purchase | 8,799 | $3.85 | $33,875 | 297,464 | Sep 13, 2022 |
| Guerrero Ramiro | — | Purchase | 283 | $3.97 | $1,125 | 288,665 | Aug 30, 2022 |
| Gryaznov Sergei | Chief Scientific Officer | Option Exercise | 10,000 | $1.80 | $18,000 | 34,511 | Aug 24, 2022 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 10,000 | $5.00 | $50,000 | 210,000 | Aug 1, 2022 |
| Guerrero Ramiro | — | Purchase | 9,000 | $4.00 | $36,000 | 268,382 | Aug 1, 2022 |
| Vlad Laurentiu | — | Purchase | 5,000 | $5.00 | $25,000 | 376,933 | Aug 1, 2022 |
| Luput Cristian | — | Purchase | 500 | $5.00 | $2,500 | 278,068 | Aug 1, 2022 |
| MCGUIRE JOSEPH F | Chief Financial Officer | Purchase | 5,000 | $5.00 | $25,000 | 5,000 | Aug 1, 2022 |
| Vitoc Vlad | Chief Executive Officer | Purchase | 6,000 | $5.00 | $30,000 | 789,121 | Aug 1, 2022 |
| Gryaznov Sergei | Chief Scientific Officer | Purchase | 3,000 | $5.00 | $15,000 | 24,511 | Aug 1, 2022 |
| CHAOUKI STEVEN M | — | Other | 8,000 | — | — | 54,250 | Aug 1, 2022 |
| Obrocea Mihail | Chief Medical Officer | Purchase | 1,000 | $5.00 | $5,000 | 27,100 | Aug 1, 2022 |
| Louie Ngar Yee | — | Purchase | 20,000 | $5.00 | $100,000 | 928,584 | Aug 1, 2022 |
| Smith Stan | — | Other | 7,200 | — | — | 503,328 | Aug 1, 2022 |