BETA Technologies, Inc.

Trading Arrangements

On June 25, 2026, The Godric’s Hollow Trust, an entity affiliated with Kyle Clark, the Company’s Chief Executive Officer and President, entered into a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. The trading plan provides for the potential sale of up to 350,000 shares of Class A common stock, subject to certain conditions, from September 24, 2026 through November 11, 2026 (after the completion or expiration of the earlier-commencing arrangements previously disclosed in the Company’s Quarterly Report on Form 10-Q for the three months ended March 31, 2026).

On June 29, 2026, Sean Donovan, the Company’s Chief Operating Officer, entered into a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. Mr. Donovan’s trading plan provides for the potential sale of up to 65,465 shares of Class A common stock, including upon the vesting of RSUs and PSUs and net of any shares sold to satisfy applicable tax-withholding obligations, subject to certain conditions, from on or about September 28, 2026 through December 31, 2026.

During the three months ended June 30, 2026, no other director or officer of BETA adopted, modified, orterminated any Rule 10b5-1 trading arrangement or any non-Rule 10b5-1 trading arrangement, as each term is defined in Item 408(a) and (c) of Regulation S-K.