Other Information
−Removed: During the period covered by this report, our Chief Financial Officer and General Counsel adopted a contract, instructions or written plans for the sale of our securities as noted below:
−Removed: Trading Arrangement
−Removed: Total Shares Authorized
−Removed: Name and Title
−Removed: Non-Rule 10b5 -1**
−Removed: to be Sold***
−Removed: Chief Financial Officer
−Removed: General Counsel
−Removed: _______________
−Removed: Intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act.
−Removed: "Non-Rule 10b5-1 trading arrangement” as defined in Item 408(c) of Regulation S-K under the Exchange Act.
−Removed: Represents the maximum number of shares that may be sold pursuant to the 10b5-1 trading arrangement.
−Removed: The number of shares sold is dependent on the satisfaction of certain conditions as set forth in the written plan and the satisfaction of applicable vesting conditions of equity awards.
−Removed: These shares would be sold through option exercises pursuant to employee stock option grants.
+Added: Our officers (as defined in Rule 16a-1(f) under the Exchange Act) have historically entered into sell-to-cover arrangements pursuant to Rule 10b5-1 authorizing the pre-arranged sale of shares to satisfy our tax withholding obligations arising exclusively from the vesting of time-vesting or performance-vesting restricted stock units and the related issuance of shares.
+Added: The amount of shares to be sold to satisfy our tax withholding obligations under these arrangements has been dependent on future events which cannot be known in advance, including the future trading price of our shares.
+Added: The expiration date relating to these arrangements has been dependent on future events which cannot be known in advance, including the final vest date of the applicable time-vesting or performance-vesting restricted stock units and the officer’s termination of service.
Index to Exhibits
14 unchanged sentences
April 27, 2015
−Removed: 2015 Stock Option Plan and Incentive Plan, as amended
2022 Inducement Plan, as amended
−Removed: Filed herewith
+Added: August 7, 2025
Certification of Principal Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
18 unchanged sentences
aTyr Pharma, Inc.
−Removed: August 7, 2025
+Added: November 6, 2025
/s/ Sanjay S.
5 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.