X0306 4 2021-05-07 0 0001530979 Honest Company, Inc. HNST 0001700539 Liew Jeremy 12130 MILLENNIUM DRIVE, SUITE 500 LOS ANGELES CA 90094 1 0 0 0 Common Stock 2021-05-07 4 C 0 546874 A 546874 I By Lightspeed Venture Partners Select, L.P. Common Stock 2021-05-07 4 C 0 64882 A 611756 I By Lightspeed Venture Partners Select, L.P. Common Stock 2021-05-07 4 S 0 82648 16.00 D 529108 I By Lightspeed Venture Partners Select, L.P. Series C Preferred Stock 2021-05-07 4 C 0 517420 0.00 D Common Stock 546874 0 I By Lightspeed Venture Partners Select, L.P. Series E Preferred Stock 2021-05-07 4 C 0 64882 0.00 D Common Stock 64882 0 I By Lightspeed Venture Partners Select, L.P. The shares of Series C Preferred Stock converted into shares of Common Stock on a 1-for-1.056925 basis immediately prior to the closing of the Issuer's initial public offering, and had no expiration date. Shares held by Lightspeed Venture Partners Select, L.P. ("Lightspeed Select"). Lightspeed General Partner Select, L.P. ("LGP Select") is the general partner of Lightspeed Select. Lightspeed Ultimate General Partner Select, Ltd. ("LUGP Select") is the general partner of LGP Select. Barry Eggers, Jeremy Liew, Ravi Mhatre and Peter Nieh are the directors of LUGP Select and share voting and dispositive power with respect to the shares held by Lightspeed Select. LGP Select, LUGP Select and Messrs. Eggers, Liew, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed Select, except to the extent of their respective pecuniary interests therein. The shares of Series E Preferred Stock converted into shares of Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering, and had no expiration date. /s/ Brendan Sheehey, Attorney-in-Fact 2021-05-10