X0708 D LIVE 0002154766 Horsley Bridge Growth 15, L.P. 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 415-986-7733 DELAWARE None None Limited Partnership true 2026 0002154770 Horsley Bridge Growth 15-A, L.P. 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 415-986-7733 DELAWARE None None Limited Partnership true 2026 N/A Horsley Bridge Partners LLC 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Managing General Partner of the Issuers N/A HB Growth 15, LLC 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Special General Partner of the Growth 15 Issuer N/A HB Growth 15-A, LLC 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Special General Partner of the Growth 15-A Issuer Du Chai 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Lance Cottrill 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Joshua Freeman 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Yi Sun 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Kathryn Mayne 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Kathleen Murphy 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Clara Vu 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Jon Roller 140 New Montgomery Street, Floor 16 San Francisco CA CALIFORNIA 94105 Executive Officer Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b 3C 3C.1 3C.7 false true false true false 0 475000000 0 475000000 Total Offering Amount and Total Amount Sold reflect aggregates between the Growth 15 Issuer, the Growth 15-A Issuer, and Horsley Bridge Growth 15 Feeder, L.P., a "feeder fund" of the Growth 15-A Issuer. false 0 0 0 0 true The Issue's Managing General Partner is entitled to a management fee payable by the Issuer. false Horsley Bridge Growth 15, L.P. /s/ Kathleen Murphy Kathleen Murphy Manager of the Managing General Partner of the Issuer 2026-09-15 Horsley Bridge Growth 15-A, L.P. /s/ Kathleen Murphy Kathleen Murphy Manager of the Managing General Partner of the Issuer 2026-09-15