X0609 4 2026-08-05 0000100378 TWIN DISC INC TWIN 0001226982 BATTEN JOHN H false TWIN DISC, INC. 222 EAST ERIE ST., SUITE 400 MILWAUKEE WI 53202 1 1 1 President and CEO 0 COMMON STOCK 2026-08-05 4 F 0 15479 23.336 D 459955 D COMMON STOCK 2026-08-05 4 A 0 78693 24.01 A 538648 D COMMON STOCK 2026-08-05 4 F 0 36986 24.01 D 501662 D COMMON STOCK 2026-08-05 4 A 0 18756 24.01 A 520418 D COMMON STOCK 2457.2354 I 401(k) COMMON STOCK 160019 I As Trustee COMMON STOCK 201156 I As Trustee COMMON STOCK 115456 I As Trustee COMMON STOCK 114976 I As Trustee COMMON STOCK 106744 I As Trustee Represents shares of common stock withheld by the issuer to satisfy tax obligations in connection with the vesting of restricted stock granted to the Reporting Person pursuant to Rule 16b-3(d). Vesting of Performance Stock for no cash consideration pursuant to the Twin Disc, Incorporated 2021 Long-Term Incentive Compensation Plan. Represents shares of common stock withheld by the issuer to satisfy tax obligations in connection with the vesting of performance stock granted to the Reporting Person pursuant to Rule 16b-3(d). Award of Restricted Stock for no cash consideration pursuant to the Twin Disc, Incorporated 2021 Omnibus Incentive Plan. Grant will vest 100% on 8/5/2029. As trustee of Michael E. Batten Marital Trust. As trustee of Michael E. Batten Family Trust. As trustee of Elizabeth Batten Stribney Trust. As trustee of Timothy Michael Batten Trust. As trustee of Louise Vemet Batten Grantor Trust. /s/ John H. Batten 2026-08-07