X0306 4 2018-05-18 0000880242 BIOLARGO, INC. BLGO 0001663146 STROMMEN JACK B. 7108 31ST AVENUE NORTH MINNEAPOLIS MN 55427 1 Common Stock 2018-05-18 4 C 0 2201714 0.30 A 4308012 D Convertible Promissory Note 0.30 2018-05-18 4 C 0 650000 0.30 D 2015-10-08 2018-06-01 Common Stock 2166667 100000 I $100,000 convertible promissory note held through corporate entity of which Reporting Person is bene Shares were issued to Reporting Person in exchange for conversion of the promissory note reported as "disposed" in Table II, issued in exchange for a $650,000 investment in Issuer's 2015 Unit Offering, and include shares issued as payment of principal at $0.30 per share and accrued interest at $0.25 per share. Represents the conversion price set forth in the Convertible Promissory Note reported herein. Reporting Person elected to reduce conversion price of subject promissory note from $0.35 to $0.30 through the payment of $39,000. Upon reduction of conversion price to $0.30, number of shares of common stock underlying the note increased from 1,857,143 to 2,166,667. /s/ John R. Browning, Attorney in fact 2018-05-22