X0508 4 2025-11-24 0001878313 MAIA Biotechnology, Inc. MAIA 0001913199 Smith Stan 444 WEST LAKE STREET, SUITE 1700 CHICAGO IL 60606 1 0 Common Stock 2025-11-24 4 P 0 10000 .99 A 1334289 I See Footnote Common Stock 2025-11-25 4 P 0 15000 .98 A 1349289 I See Footnote The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9675 to $0.9899, 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. These securities are beneficially owned by Mr. Smith through The Stan V. Smith Trust Dated 1993. The price reported is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.9550 to $1.05, 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. /s/ Stan V. Smith 2025-11-26