X0306 4 2021-08-06 0001645842 Zymergen Inc. ZY 0001192752 PETERSON SANDRA E 5980 HORTON STREET, SUITE 105 EMERYVILLE CA 94608 true Common Stock 2021-08-06 4 A 0 24330 0 A 69119 D Represents restricted stock units that vest in full on the first annual anniversary of the Grant Date, subject to Reporting Person's continued service to the Board of Directors through the vesting date. /s/ Mina Kim, attorney-in-fact 2021-08-09