X0306 4 2019-05-30 0 0001419041 Tocagen Inc TOCA 0001352620 Hasnain Faheem C/O TOCAGEN INC. 4242 CAMPUS POINT COURT, SUITE 500 SAN DIEGO CA 92121 1 0 0 0 Common Stock 2019-05-30 4 P 0 38860 4.5912 A 241717 I By Faheem Hasnain and Marie Hasnain Co-Trustees of the Hasnain Revocable Trust,dtd February 19, 2010 Common Stock 2019-05-30 4 P 0 3890 5.299 A 245607 I By Faheem Hasnain and Marie Hasnain Co-Trustees of the Hasnain Revocable Trust,dtd February 19, 2010 Common Stock 2019-05-30 4 P 0 250 5.1495 A 245857 I By Faheem Hasnain and Marie Hasnain Co-Trustees of the Hasnain Revocable Trust,dtd February 19, 2010 The weighted average purchase price for the transaction reported was $4.5912, and the range of prices were between $4.22 and $5.00. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased at each separate price will be provided. The weighted average purchase price for the transaction reported was $5.2990, and the range of prices were between $5.29 and $5.30. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased at each separate price will be provided. /s/ Mark Foletta, Attorney-in-Fact 2019-06-03