X0407 4 2023-05-11 0 0001902314 M-tron Industries, Inc. MPTI 0001233348 GABELLI MARC 2525 SHADER RD ORLANDO FL 32804 1 0 0 0 0 Common Stock 2023-05-11 4 A 0 1266 11.85 A 41556 D Common Stock 382151 I Shares held by a Ltd. Partnership These shares are beneficially owned by Venator Merchant Fund, L.P. ("Venator Fund") and Venator Global LLC ("Venator Global"). Venator Global, which is the sole general partner of Venator Fund, is deemed to have beneficial ownership of the securities owned by Venator Fund. Marc Gabelli is the President of Venator Fund. Shares issued for Annual Director Grant /s/ Marc Gabelli 2023-05-15