X0306 4 2020-03-31 0000880242 BIOLARGO, INC. BLGO 0001663146 STROMMEN JACK B. 7108 31ST AVENUE NORTH MINNEAPOLIS MN 55427 1 Option to Purchase Common Stock 0.17 2020-03-31 4 A 0 88235 A 2020-03-31 2030-03-31 Common stock 88235 573859 D This Option was issued to Reporting Person as payment for $15,000 in fees due to Reporting Person by Issuer in exchange for services on its board of directors for the most recently completed quarterly period, pursuant to the Issuer's 2018 Equity Incentive Plan. /s/ John R. Browning, Attorney-in-fact 2020-04-07