X0306 4 2018-05-02 0000880242 BIOLARGO, INC. BLGO 0001663146 STROMMEN JACK B. 7108 31ST AVENUE NORTH MINNEAPOLIS MN 55427 1 Common Stock 2018-05-02 4 C 0 1450400 0.25 A 2106298 D Convertible Promissory Note 0.25 2018-05-02 4 C 0 250000 0.25 D 2015-09-09 2018-06-01 Common Stock 1000000 750000 D Convertible Promissory Note 0.25 2018-05-02 4 C 0 100000 0.25 D 2015-08-26 2018-06-01 Common Stock 400000 750000 D Shares were issued to Reporting Person in exchange for conversion of promissory notes issued in exchange for $350,000 of investments in Issuer's 2015 Unit Offering, and include shares issued as payment of both principal and accrued interest oustanding. Represents the conversion price set forth in the Convertible Promissory Note reported herein. Includes two investments into Issuer's "unit" securities offerings in the aggregate amount. /s/ John R. Browning, Attorney in fact 2018-05-04