X0306 4 2016-08-18 0 0001469443 Arcadia Biosciences, Inc. RKDA 0001640691 Lu Zhongjin C/O ARCADIA BIOSCIENCES, INC. 202 COUSTEAU PLACE, SUITE 105 DAVIS CA 95618 0 1 0 0 VP Product Development Common Stock 17101 D Stock Option (right to buy) 2.14 2016-08-18 4 A 0 50000 0.00 A 2017-08-18 2026-08-17 Common Stock 50000 50000 D Reflects the purchase of (i) 750 shares of the Issuer's common stock on 2/1/16 at a per share purchase price of $2.54, and (ii) 1,591 shares of the Issuer's common stock at a per share purchase price of $2.07, each pursuant to participation in the Issuer's 2015 Employee Stock Purchase Plan. The option vests as to 25% of the award on the first anniversary of the date of the award (or August 18, 2017) and the remaining 75% thereafter vests in 36 equal installments beginning August 31, 2017 and continuing on the last day of each of the next 35 months, with the last vesting to occur on July 31, 2020. Zhongjin Lu, Ph.D., by Attorney-in-Fact, Wendy Neal 2016-08-22