aTyr Pharma, Inc. (ATYR)
Nasdaq: ATYR · Biological Products, (No Diagnostic Substances) · San Diego, CA · filing with the SEC since 2005
Who owns aTyr Pharma, Inc.
As filed with the SECHolders of 5% or more
1
Federated Hermes, Inc. holds 5.06% of COMMON STOCK, as its SCHEDULE 13G/A filed Oct 7, 2026 says.
Directors and officers
10
report now, of 30 people on the record since 2015. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Federated Hermes, Inc.
SCHEDULE 13G/A · filed Oct 7, 2026 · COMMON STOCK · 8.68% in Jul 8, 2026
Point72 Asset Management, L.P.
SCHEDULE 13G/A · filed May 15, 2025 · Common Stock, par value $0.001 per share · reported falling below 5%
Fmr LLC
SCHEDULE 13G/A · filed Aug 6, 2026 · COMMON STOCK · reported falling below 5%, from 6.1% in Jun 5, 2026
Blackrock, Inc.
SCHEDULE 13G/A · filed Jul 27, 2026 · Common Stock · reported falling below 5%, from 6.5% in Jul 17, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%, from 5.23% in Jul 29, 2025
What ATYR reports owning in othersstakes of 5% or more, and other ties
aTyr Pharma, Inc. reports no stake in another company in the record.
Insider tradesForm 4
3sales
3purchases
0sales on a scheduled plan
3people selling
$0sold, in dollars
$1.0Mbought, in dollars
Open-market trades on Form 4 from Oct 1, 2025 to Oct 1, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 1, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window4 of 31 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Schimmel Paul | director | 0 | $0 | 0 | 3 | $1.0M |
| Shukla Sanjay | President and CEO | 1 | $0 | 0 | 0 | $0 |
| Broadfoot Jill Marie | Chief Financial Officer | 1 | $0 | 0 | 0 | $0 |
| Krueger Nancy | General Counsel | 1 | $0 | 0 | 0 | $0 |