Honest Company, Inc.

Item 5. Other Information.

Rule 10b5-1 Trading Arrangements and Non-Rule 10b5-1 Trading Arrangements

The table below shows the contracts, instructions or written plans adopted orterminated during the quarter ended September 30, 2025 providing for the purchase and/or sale of the Company's securities by the Company’s directors and officers (as defined in Rule 16a-1(f) under the Exchange Act):

(1) Contract, instruction or written plan intended to satisfy the affirmative defense conditions of Rule10b5-1(c) under the Exchange Act.

(2) Non-Rule Rule 10b5-1 trading arrangement as defined in Item 408(c) of Regulation S-K under the Exchange Act.

(3) The total shares to be sold cannot be determined at the date of this Quarterly Report as the planned sale amount for such officer is equal to a designated percentage of the net number of shares after a portion of the shares have been sold to cover withholding taxes from RSU vesting. The amount listed for such officer reflects the maximum number of shares available to be sold, which is the net number of shares after taxes, multiplied by the designated percentages set forth in such officer's respective 10b5-1 trading plan.

(4) Each Plan terminates on the earlier of: (i) the expiration date listed in the table above; (ii) the first date on which all trades set forth in the Plan have been executed; or (iii) such date the Plan is otherwise terminated according to its terms.

During the three months ended September 30, 2025, Curtiss Bruce, our Chief Financial Officer, entered into a sell-to-cover arrangement adopted pursuant to Rule 10b5-1 on August 24, 2025. The sell-to-cover arrangements adopted pursuant to Rule 10b5-1 authorized the pre-arranged sale of shares to satisfy tax withholding obligations of the Company arising exclusively from the vesting of time-vesting or performance-vesting restricted stock units and the related issuance of shares of Common Stock. The amount of shares of Common Stock to be sold to satisfy the Company’s tax withholding obligations under this arrangement is dependent on future events which cannot be known at this time, including the future trading price of Company shares. The expiration date relating to the arrangement is dependent on future events which cannot be known at this time, including the final vest date of the applicable time-vesting or performance-vesting restricted stock units and the officer’s termination of service.