Jill Marie Broadfoot - 03 Feb 2026 Form 4 Insider Report for aTYR PHARMA INC (ATYR)

Reporting relationship: Chief Financial Officer
Issuer ticker: ATYR
Reported as of: 03 Feb 2026
Net transaction value: -$1,521
SEC form: 4
Accepted by SEC: 04 Feb 2026, 19:15:03 UTC
Prior SEC filing: 09 Jan 2026
Next SEC filing: 24 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Nancy E. Denyes, attorney-in-fact

Key filing fact

Jill Marie Broadfoot filed Form 4 for aTYR PHARMA INC (ATYR) on 04 Feb 2026.

Key facts

This page summarizes Jill Marie Broadfoot's Form 4 filing for aTYR PHARMA INC (ATYR).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 04 Feb 2026, 19:15.

Change

Previous filing in this sequence was filed on 09 Jan 2026.
Current net transaction value: -$1,521.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001305178 Primary reporting owner

Broadfoot Jill Marie

Relationship: Chief Financial Officer
Address: 10240 SORRENTO VALLEY ROAD, SUITE 300, SAN DIEGO
Signature: /s/ Nancy E. Denyes, attorney-in-fact
Signature date: 04 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATYR transaction

Common Stock

Options Exercise

Transaction value
Shares: +3,750
Change %: +11%
Price
Shares after: 38,854
Date: 03 Feb 2026
Ownership: Direct
Footnotes: F1, F2

ATYR transaction

Common Stock

Sale

Transaction value: $1,521
Shares: -1,558
Change %: -4%
Price: $0.9760
Shares after: 37,296
Date: 04 Feb 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ATYR transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value: $0
Shares: -3,750
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 03 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 3,750
Exercise price
Footnotes: F2, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Represents shares acquired upon the vesting of restricted stock units (RSUs) granted to the Reporting Person on February 3, 2022.

Footnote F2

Restricted stock units convert into common stock on a one-for-one basis.

Footnote 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.

Footnote 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.