X0609 4 2026-06-05 0001409970 Happen, Inc. HAPN 0001644258 Selleck Erin false C/O HAPPEN, INC. 88 KEARNY ST., SUITE 600 SAN FRANCISCO CA 94108 1 1 Common Stock 2026-06-05 4 S 0 2391 17.40 D 81157 D Common Stock 13715 D This transaction was effected pursuant to a Rule 10b5-1 trading plan. Represents the unvested portion of the annual non-employee director equity award of Restricted Stock Units ("RSUs") made under the Issuer's 2014 Equity Incentive Plan. Each RSU represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's common stock. The RSUs will vest quarterly over a one-year period beginning on June 2, 2026, subject to continued service through each vesting date. /s/ Bhavit Sheth, attorney-in-fact 2026-08-27