Vitoc Vlad

SEC source: 0001878313-26-000087 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,049,121

SEC source: 0001878313-26-000062 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 976,121

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.3634 to $1.4150, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001878313-26-000053 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 800,000

Underlying: Common Stock · 800,000 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.

SEC source: 0001878313-26-000047 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 800,000

Underlying: Common Stock · 800,000 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.

SEC source: 0001878313-25-000056 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 881,421

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.1283 to $1.1416, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001878313-25-000059 · form4a.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 903,421

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.1283 to $1.1416, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

F3 · balance_after: The original Form 4 filed on December 1, 2025 had the incorrect total share balance owned by Vlad Vitoc. This Amended Form 4 is now reflecting the correct share balance owned.

SEC source: 0001878313-25-000056 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 853,421

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.0145 to $1.0587, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001878313-25-000059 · form4a.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 853,421

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $1.0145 to $1.0587, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001878313-25-000047 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 831,421

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9606 to $0.9745, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001878313-25-000060 · form4a.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 831,421

SEC source: 0001878313-25-000040 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 820,921

SEC source: 0001878313-25-000040 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 810,921

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9128 to $0.9235, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-25-014670 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400,000

Underlying: Common Stock · 400,000 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.

SEC source: 0001127602-25-004348 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 400,000

Underlying: Common Stock · 400,000 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.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 12

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 41,253

Underlying: Common Stock · 41,253 shares

Expires 2033-05-31

F11 · kind: This transaction involves the reporting person's gift of 41,253 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on May 31, 2023) under the Company's 2021 Stock Option Plan to the Lidia Maria Vitoc 2024 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child. The reporting person disclaims beneficial ownership of these securities held by his daughter.

F12 · ownership.nature: These securities are held by Lidia Maria Vitoc 2024 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child. The reporting person disclaims beneficial ownership of these securities held by his daughter.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 11

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 41,253 shares

Expires 2033-05-30

F11 · kind: This transaction involves the reporting person's gift of 41,253 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on May 31, 2023) under the Company's 2021 Stock Option Plan to the Lidia Maria Vitoc 2024 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child. The reporting person disclaims beneficial ownership of these securities held by his daughter.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 10

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 41,253

Underlying: Common Stock · 41,253 shares

Expires 2033-05-31

F9 · kind: This transaction involves the reporting person's gift of 41,253 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on May 31, 2023) under the Company's 2021 Stock Option Plan to the Maia Laetitia Cristian Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

F10 · ownership.nature: These securities are held by Maia Laetitia Cristian Vitoc 2022 MAIA Irrevocable Trust for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 9

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,253

Underlying: Common Stock · 41,253 shares

Expires 2033-05-30

F9 · kind: This transaction involves the reporting person's gift of 41,253 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on May 31, 2023) under the Company's 2021 Stock Option Plan to the Maia Laetitia Cristian Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 8

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 41,254

Underlying: Common Stock · 41,254 shares

Expires 2033-05-30

F7 · kind: This transaction involves the reporting person's gift of 41,254 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on May 31, 2023) under the Company's 2021 Stock Option Plan) to the Leia Violeta Ioana Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

F8 · ownership.nature: These securities are held by Leia Violeta Ioana Vitoc 2022 MAIA Irrevocable Trust for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 7

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,506

Underlying: Common Stock · 41,254 shares

Expires 2033-05-30

F7 · kind: This transaction involves the reporting person's gift of 41,254 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on May 31, 2023) under the Company's 2021 Stock Option Plan) to the Leia Violeta Ioana Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 6

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 19,982

Underlying: Common Stock · 19,982 shares

Expires 2030-04-01

F5 · kind: This transaction involves the reporting person's gift of 19,982 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on April 30, 2020) under the Company's 2018 Stock Option Plan to the Maia Laetitia Cristian Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

F6 · ownership.nature: These securities are held by Maia Laetitia Cristian Vitoc 2022 MAIA Irrevocable Trust for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 5

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,555

Underlying: Common Stock · 19,982 shares

Expires 2030-04-01

F5 · kind: This transaction involves the reporting person's gift of 19,982 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on April 30, 2020) under the Company's 2018 Stock Option Plan to the Maia Laetitia Cristian Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 4

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 19,982

Underlying: Common Stock · 19,982 shares

Expires 2030-04-01

F3 · kind: This transaction involves the reporting person's gift of 19,982 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on April 30, 2020) under the Company's 2018 Stock Option Plan to the Lidia Maria Vitoc 2024 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child. The reporting person disclaims beneficial ownership of these securities held by his daughter.

F4 · ownership.nature: These securities are held by Lidia Maria Vitoc 2024 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child. The reporting person disclaims beneficial ownership of these securities held by his daughter.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 3

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,537

Underlying: Common Stock · 19,982 shares

Expires 2030-04-01

F3 · kind: This transaction involves the reporting person's gift of 19,982 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on April 30, 2020) under the Company's 2018 Stock Option Plan to the Lidia Maria Vitoc 2024 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child. The reporting person disclaims beneficial ownership of these securities held by his daughter.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 19,981

Underlying: Common Stock · 19,981 shares

Expires 2030-04-01

F1 · kind: This transaction involves the reporting person's gift of 19,981 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on April 30, 2020) under the Company's 2018 Stock Option Plan to the Leia Violeta Ioana Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

F2 · ownership.nature: These securities are held by Leia Violeta Ioana Vitoc 2022 MAIA Irrevocable Trust for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-026731 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149,519

Underlying: Common Stock · 19,981 shares

Expires 2030-04-01

F1 · kind: This transaction involves the reporting person's gift of 19,981 shares of MAIA Biotechnology, Inc.'s (the "Company") common stock held in options granted (which options fully vested on April 30, 2020) under the Company's 2018 Stock Option Plan to the Leia Violeta Ioana Vitoc 2022 MAIA Irrevocable Trust, for the benefit of Mr. Vitoc's child, for which Mr. Vitoc's spouse serves as the trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001127602-24-013654 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 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.

SEC source: 0001127602-24-002270 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 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.

SEC source: 0001127602-23-017884 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,760

Underlying: Common Stock · 123,760 shares

Expires 2032-05-30

F1 · derivative.exercise_date: The stock options, granted on May 31, 2023 pursuant to MAIA Biotechnology, Inc's 2021 Equity Incentive Plan, representing the right to buy shares of common stock, vest 100% on the date of the grant and are exercisable beginning as of that date.

SEC source: 0001127602-23-013819 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 809,121

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $2.49 to $2.50, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-012463 · form4.xml · nonDerivative · entry 3

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 805,121

F2 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F4 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.53 to $3.60, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-012463 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 804,196

F2 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F3 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.45 to $3.60, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-011737 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 802,821

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F3 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.44 to $3.48, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-011737 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 801,326

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.41 to $3.43, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-009532 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 801,121

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.20 to $4.22, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-009770 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires 2033-03-08

F1 · derivative.exercise_date: The stock options, granted on March 8, 2023 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 grant and the remaining options to vest ratably monthly thereafter for 36 months.

SEC source: 0001127602-23-009392 · form4.xml · nonDerivative · entry 3

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 799,540

F2 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F4 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.21 to $4.25, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-009392 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 798,101

F2 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F3 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.23 to $4.25, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-008972 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 797,557

F1 · shares: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F3 · shares: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.39 to $4.50, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-008972 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 795,159

F1 · shares: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · shares: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.41 to $4.50, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-008066 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 795,114

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F3 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.43 to $4.50, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-008066 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 794,832

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.43 to $4.50, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-006340 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 793,557

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.24 to $4.25, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-005727 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 793,484

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

SEC source: 0001127602-23-005727 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 793,474

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

SEC source: 0001127602-23-005033 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 793,464

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.20 to $4.25, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-001010 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 793,121

F1 · shares: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · shares: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.59 to $3.75, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-000224 · form4.xml · nonDerivative · entry 2

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 791,855

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $3.51 to $3.70, inclusive. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, to any security holder of the Issuer, or to the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above.

SEC source: 0001127602-23-000224 · form4.xml · nonDerivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 789,531

F1 · price: The purchases reported in this Form 4 were automatically effected pursuant to a previously executed purchasing plan for Mr. Vitoc that is intended to comply with Rule 10b5-1(c) promulgated under the Securities Exchange Act of 1934, as amended.

SEC source: 0001127602-22-022739 · form4.xml · derivative · entry 1

Vitoc Vlad · CIK 0001913257 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires 2032-09-16

F1 · derivative.exercise_date: The stock options, granted on September 16, 2022 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 grant and the remaining options to vest ratably monthly thereafter for 36 months.