X0306 4 2018-06-29 0000880242 BIOLARGO, INC. BLGO 0001663146 STROMMEN JACK B. 7108 31ST AVENUE NORTH MINNEAPOLIS MN 55427 1 Common Stock 2018-06-29 4 C 0 7532 0.37 A 4315544 I Securities acquired held through wholly owned single member limited liability company. Option to Purchase Common Stock 0.43 2018-06-29 4 A 0 34884 A 2018-06-29 2028-06-29 Common stock 34884 92800 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 three months ended June 30, 2018, pursuant to the Issuer's 2018 Equity Incentive Plan. Shares were issued as payment of quarterly interest due on a convertible promissory note issued to Reporting Person in Issuer's Spring 2018 Unit Offering. Price per share was calculated using the average closing price of Issuer's common stock for the 20 business days preceding the interest due date. /s/ John R. Browning, Attorney in fact 2018-07-03