aTYR PHARMA INC — Director's Dealing 2021

May 25, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: aTYR PHARMA INC (LIFE)
CIK: 0001339970
Period of Report: 2021-05-21

Reporting Person: Zaknoen Sara (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-21	Stock Option (right to buy)	$4.45	A	2285	Acquired	2031-05-21	Common Stock (2285)	Direct

Footnotes

F1: The shares subject to this option shall vest and become exercisable in 36 equal monthly installments beginning June 21, 2021, such that this option will be fully exercisable on May 21, 2024, subject to the recipient's continued service on the Issuer's Board of Directors.