X0508 4 2025-12-31 0001784570 BETA Technologies, Inc. BETA 0002089966 Dunkiel Brian C/O BETA TECHNOLOGIES, INC. 1150 AIRPORT DRIVE SOUTH BURLINGTON VT 05403 false true false false SEE REMARKS false Class A common stock 2025-12-31 4 M false 6544 5.8218 A 76622 D Class A common stock 15692 I By Leslie J. Halperin Trust Exempt Fund Class A common stock 1500 I By Leslie J. Halperin Trust Employee Stock Option 5.8218 2025-12-31 4 M false 6544 0 D 2033-03-26 Class A Common Stock 6544 262799 D The reported securities include 33,125 shares of Class A common stock held by Brian Dunkiel and Leslie Halperin, tenants-by-the-entirety. The reporting person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. The reported options were granted on March 27, 2023, commenced vesting on January 27, 2023 with 1/8 vesting subject to a 6-month cliff and the remainder vesting ratably in 1/48 monthly installments thereafter, and will be fully vested on January 27, 2027. Chief Legal Officer, Vice President and Secretary /s/ Brian Dunkiel 2026-01-05