Paul Schimmel - Oct 8, 2025 Form 4 Insider Report for aTYR PHARMA INC (ATYR)

Role
Director
Signature
/s/ Nancy E. Denyes, as Attorney-in-Fact
Stock symbol
ATYR
Transactions as of
Oct 8, 2025
Transactions value $
$911,801
Form type
4
Date filed
10/9/2025, 06:30 PM
Previous filing
May 2, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SCHIMMEL PAUL Director C/O ATYR PHARMA, INC., 10240 SORRENTO VALLEY ROAD, SUITE 300, SAN DIEGO /s/ Nancy E. Denyes, as Attorney-in-Fact 2025-10-09 0001236447

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ATYR Common Stock Purchase $612K +682K +165.12% $0.90 1.1M Oct 8, 2025 See Footnote F1, F2
transaction ATYR Common Stock Purchase $299K +318K +29.04% $0.94 1.41M Oct 9, 2025 See Footnote F2, F3
holding ATYR Common Stock 8.89K Oct 8, 2025 Direct
holding ATYR Common Stock 679K Oct 8, 2025 See Footnote F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents weighted average price for the shares. The shares were purchased at prices ranging from $0.8536 to $0.95 per share. The reporting person will provide to the Securities and Exchange Commission staff, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares purchased at each separate price.
F2 These shares are owned directly by Paul Schimmel Prototype PSP, Paul Schimmel Trustee, FBO Paul Schimmel. The Reporting Person is the sole owner of the Paul Schimmel Prototype PSP, Paul Schimmel Trustee, FBO Paul Schimmel.
F3 Represents weighted average price for the shares. The shares were purchased at prices ranging from $0.93 to $0.95 per share. The reporting person will provide to the Securities and Exchange Commission staff, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares purchased at each separate price.
F4 These shares are owned directly by Schimmel Revocable Trust U/A Dtd 9/6/2000. The Reporting Person and his spouse are trustees of the Schimmel Revocable Trust U/A Dtd 9/6/2000.