X0508 4 2024-12-23 0 0001820302 Bakkt Holdings, Inc. BKKT 0001870910 Alexander Karen C/O BAKKT HOLDINGS, INC. 10000 AVALON BOULEVARD, SUITE 1000 ALPHARETTE GA 30009 0 1 0 0 Chief Financial Officer 0 Class A Common Stock 2024-12-23 4 F 0 362 27.56 D 39637 D In connection with the vesting of restricted stock units on December 21, 2024, the issuer withheld Class A Common Stock that would otherwise have been issued to the reporting person to satisfy such person's tax withholding obligations. The number of shares withheld was determined based on the closing price per share of Class A Common Stock on December 20, 2024. Includes 32,666 shares of Class A Common Stock subject to RSUs and performance stock units that remain subject to vesting. /s/ Marc D'Annunzio Attorney-in-Fact for Karen Alexander 2024-12-26