X0508 4 2024-02-22 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 2024-02-22 4 F 0 29577 0.955 D 346443 D In connection with the vesting of restricted stock units on February 13, 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 February 13, 2024. Includes 224,118 shares of Class A Common Stock subject to restricted stock units awards that remain subject to vesting. /s/ Marc D'Annunzio Attorney-in-Fact for Karen Alexander 2024-02-26