X0508 4 2025-01-17 0002035149 Flowco Holdings Inc. FLOC 0001503168 Lambert Joel Christian C/O FLOWCO HOLDINGS INC. 1300 POST OAK BLVD., SUITE 450 HOUSTON TX 77056 true SVP, Gen'l Counsel & Secretary false Class A Common Stock 2025-01-17 4 A 0 12500 0 A 12500 D Class A Common Stock 2025-01-17 4 P 0 4300 24 A 16800 D Represents restricted stock units ("RSUs") that vest on the third anniversary of the grant date, with accelerated vesting following a change in control of the Issuer. Each RSU represents a contingent right to receive one share of Class A Common Stock. /s/ Joel Lambert 2025-01-22