X0508 4 2023-11-15 1 0001530979 Honest Company, Inc. HNST 0001493921 Institutional Venture Management XIII, LLC 3000 SAND HILL ROAD, BUILDING 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001493922 Institutional Venture Partners XIII, L.P. 3000 SAND HILL ROAD, BUILDING 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001300134 Chaffee Todd C 3000 SAND HILL ROAD, BUILDING 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001140932 FOGELSONG NORMAN A 3000 SAND HILL ROAD, BUILDING 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001299975 Harrick Stephen J 3000 SAND HILL ROAD, BUILDING 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001359524 Miller J Sanford 3000 SAND HILL ROAD, BUILDING 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001299965 Phelps Dennis B 3000 SAND HILL ROAD, BUILDING 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0 Common Stock 2023-11-15 4 S 0 236747 1.53 D 9487703 I By Institutional Venture Partners XIII, L.P. Common Stock 2023-11-16 4 S 0 124287 1.43 D 9363416 I By Institutional Venture Partners XIII, L.P. Common Stock 77733 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.50 to $1.57 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares are held of record by Institutional Venture Partners XIII, L.P. ("IVP XIII"). Institutional Venture Management XIII, LLC ("IVM XIII") is the general partner of IVP XIII. Todd C. Chaffee, Norman A. Fogelsong, Stephen J. Harrick, J. Sanford Miller and Dennis B. Phelps, Jr. as the managing directors of IVM XIII, may be deemed to have shared voting and dispositive power with respect to the shares held by IVP XIII. Each of IVM XIII and the managing directors disclaims beneficial ownership of the securities reported herein, except to the extent of its or his respective pecuniary interest therein. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.42 to $1.51 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares are held of record or beneficially by IVM XIII. Todd C. Chaffee, Norman A. Fogelsong, Stephen J. Harrick, J. Sanford Miller and Dennis B. Phelps, Jr. as the managing directors of IVM XIII, may be deemed to have shared beneficial ownership with respect to the shares held of record or beneficially by IVM XIII. Each of the foregoing entities and individuals disclaims beneficial ownership of the securities reported herein, except to the extent of its or his respective pecuniary interest therein. Institutional Venture Management XIII, LLC By: /s/ Tracy Hogan,Attorney-In-Fact 2023-11-16 Institutional VenturePartners XIII, L.P. By: Institutional Venture Management XIII, LLC,its General Partner By: /s/Tracy Hogan, Attorney-In-Fact 2023-11-16 /s/ Tracy Hogan, Attorney-In-Fact Todd C. Chaffee 2023-11-16 /s/ Tracy Hogan, Attorney-In-Fact Norman A. Fogelsong 2023-11-16 /s/ Tracy Hogan, Attorney-In-Fact Stephen J. Harrick 2023-11-16 /s/ Tracy Hogan, Attorney-In-Fact J. Sanford Miller 2023-11-16 /s/ Tracy Hogan, Attorney-In-Fact Dennis B. Phelps 2023-11-16