X0306 4 2020-06-18 0 0001006028 PURE BIOSCIENCE, INC. PURE 0001623609 Lee Tom Y 1807 SAN GABRIEL BLVD. SAN GABRIEL CA 91776 1 1 0 0 Chief Executive Officer Common Stock 2020-06-18 4 P 0 30000 1.7499 A 4594523 D Common Stock 2020-06-19 4 P 0 10000 1.85 A 4604523 D Common Stock 2020-06-22 4 P 0 13124 1.72 A 4617647 D Common Stock 24134173 I By Plum Investments, L.P. Common Stock 1000000 I By Kamika Shay Lee Trust Dated July 1, 2019 Common Stock 1000000 I By Karissa Shay Lee Trust Dated July 1, 2019 Common Stock 1000000 I By Tessa Melody Shin Trust Dated February 12, 2020 Common Stock 717665 I By wife This transaction was executed in multiple purchases through a purchase order executed by a broker-dealer at prices ranging from $1.62 to $1.83. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. This transaction was executed in multiple purchases through a purchase order executed by a broker-dealer at prices ranging from $1.61 to $1.82. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Mr. Lee is the general partner of Plum Investments, L.P., and has ultimate voting and investment control over the shares held by Plum Investments, L.P. Mr. Lee is a trustee of the Kamika Shay Lee Trust Dated July 1, 2019, Karissa Shay Lee Trust Dated July 1, 2019 and Tessa Melody Shin Trust Dated February 12, 2020 and has voting and dispositive power with respect to these shares /s/ Tom Lee 2020-06-22