aTYR PHARMA INC·4

Feb 4, 7:17 PM ET

Shukla Sanjay 4

4 · aTYR PHARMA INC · Filed Feb 4, 2026

Research Summary

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aTYR CEO Sanjay Shukla Receives RSU Shares, Sells 3,745

What Happened Sanjay Shukla, President, CEO and a director of aTYR PHARMA INC (ATYR), had 10,375 restricted stock units (RSUs) vest on Feb 3, 2026 and converted them into 10,375 common shares. Following the vesting, he sold 3,745 shares in an open-market transaction on Feb 4, 2026 at $0.98 per share for proceeds of $3,655 to satisfy tax withholding obligations.

Key Details

  • Transaction dates: RSU vesting/conversion recorded 2026-02-03; open-market sale 2026-02-04.
  • Shares acquired: 10,375 (conversion of vested RSUs). Acquisition price reported as $0.00 (typical for RSU vesting).
  • Shares sold: 3,745 at $0.98 each; total proceeds $3,655.
  • Reason for sale: Footnote states sale was to satisfy tax withholding on the partial vesting of RSUs.
  • RSU terms: These RSUs were granted on Feb 3, 2022, convert one-for-one to common stock, and vest in four equal annual installments beginning Feb 3, 2023 (fully vested Feb 3, 2026). They include accelerated vesting upon a change of control in certain circumstances.
  • Shares owned after transaction: Aggregate holdings not specified in the Form 4 filing.
  • Filing timeliness: Form filed on 2026-02-04 for a 2026-02-03 transaction — appears timely.

Context This was a standard RSU vesting event (an award converting to common stock) with a small portion sold immediately to cover taxes — a routine, non-speculative administrative sale. The conversion of RSUs is often reported as a derivative exercise/ conversion with $0 consideration because the award vests into shares rather than being purchased.

Insider Transaction Report

Form 4
Period: 2026-02-03
Shukla Sanjay
DirectorPresident and CEO
Transactions
  • Exercise/Conversion

    Common Stock

    [F1][F2]
    2026-02-03+10,375157,298 total
  • Sale

    Common Stock

    [F3]
    2026-02-04$0.98/sh3,745$3,655153,553 total
  • Exercise/Conversion

    Restricted Stock Unit

    [F2][F4]
    2026-02-0310,3750 total
    Common Stock (10,375 underlying)
Footnotes (4)
  • [F1]Represents shares acquired upon the vesting of restricted stock units (RSUs) granted to the Reporting Person on February 3, 2022.
  • [F2]Restricted stock units convert into common stock on a one-for-one basis.
  • [F3]Sale made by the Reporting Person to satisfy tax withholding obligations in connection with the partial vesting of RSUs granted on February 3, 2022.
  • [F4]The RSUs vest in four equal annual installments beginning on February 3, 2023, such that the RSUs fully vest on February 3, 2026. The RSUs are subject to accelerated vesting upon termination without cause upon a change of control of the Issuer.
Signature
/s/ Nancy E. Denyes, attorney-in-fact|2026-02-04

Documents

1 file
  • 4
    ownership.xmlPrimary

    4