aTYR PHARMA INC — Director's Dealing 2019

May 10, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: aTYR PHARMA INC (LIFE)
CIK: 0001339970
Period of Report: 2019-05-08

Reporting Person: Hatfield Jeffrey S. (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-05-08	Stock Option (right to buy)	$0.5834	A	20000	Acquired	2029-05-08	Common Stock (20000)	Direct

Footnotes

F1: The option, granted pursuant to the Issuer's non-employee director compensation policy, vests in full on the earlier of (i) May 8, 2020 or (ii) the Issuer's 2020 Annual Meeting of Stockholders, subject to the Reporting Person's continued service on the Board of Directors.