X0609 4 2026-03-27 0 0001820302 Bakkt, Inc. BKKT 0001871559 D'Annunzio Marc false C/O BAKKT, INC. 1 LIBERTY ST FL 3 STE 305-306 NEW YORK NY 10006 0 1 0 0 General Counsel and Secretary 1 Class A Common Stock 2026-03-27 4 S 0 6422 8.55 D 111411 D Class A Common Stock 2026-03-30 4 S 0 5342 7.0788 D 106069 D Represents sale to cover tax obligations associated with the vesting of restricted stock units. Includes 30,622 shares of Class A Common Stock subject to restricted stock units and performance stock units awards that remain subject to vesting. Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $6.8900 to $7.8899, inclusive. For all transactions reported in this Form 4 utilizing a weighted-average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The sales were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 09/10/2025. /s/ Marc D'Annunzio 2026-03-31