X0306 4 2020-08-13 0 0001660334 Verrica Pharmaceuticals Inc. VRCA 0001709418 Stalfort Sean C/O VERRICA PHARMACEUTICALS INC. 10 NORTH HIGH STREET, SUITE 200 WEST CHESTER PA 19380 1 0 0 0 Common Stock 2020-08-13 4 P 0 15550 6.45 A 446410 D Common Stock 2020-08-14 4 P 0 15700 6.38 A 462110 D The price reported is a weighted average purchase price. The shares were purchased in multiple transactions at prices ranging from $6.24 to $6.55, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnotes (1) and (2). The price reported is a weighted average purchase price. The shares were purchased in multiple transactions at prices ranging from $6.08 to $6.65, inclusive. /s/ Mark Ballantyne, Attorney-in-Fact 2020-08-17