ATYR aTYR PHARMA INC: institutional ownership and insider trading
94 funds reported holding $28.1M of aTYR PHARMA INC in their latest 13F filings; in Q2 2026 funds net sold $10.3M, with 16 new positions and 35 funds selling out; over the last 12 months insiders bought $50.0K and sold $6.29K on the open market.
ATYR revenue and earnings
- Quarter ended Jun 30, 2026: revenue n/a, net income −$10.3M, EPS -0.11
- Quarter ended Mar 31, 2026: revenue n/a, net income −$10.8M, EPS -0.11
- Quarter ended Dec 31, 2025: revenue $0, net income −$14.0M, EPS -0.15
- Quarter ended Sep 30, 2025: revenue $190K, net income −$25.7M, EPS -0.26
Famous investors holding ATYR
- Ken Griffin (Citadel Advisors): $924K, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $743K, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $392K, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $98.6K, 0.0% of the portfolio
Largest institutional holders of ATYR
- FEDERATED HERMES, INC. (FHI) — $5.08M
- VANGUARD GROUP INC — $3.89M
- VANGUARD CAPITAL MANAGEMENT LLC — $2.27M
- GSA CAPITAL PARTNERS LLP — $2.06M
- AQR CAPITAL MANAGEMENT LLC — $1.56M
- FMR LLC — $1.47M
- JANE STREET GROUP, LLC — $1.14M
- BlackRock, Inc. (BLK) — $1.09M
- Kalehua Capital Management LLC — $1.07M
- CITADEL ADVISORS LLC — $924K
Recent ATYR insider trades
- May 27, 2026: Schimmel Paul bought 100,000 shares ($50.0K)
- Feb 4, 2026: Denyes Nancy sold 1,118 shares ($1.10K)
- Feb 4, 2026: Broadfoot Jill Marie sold 1,558 shares ($1.53K)
- Feb 4, 2026: Shukla Sanjay sold 3,745 shares ($3.67K)
5%+ owners
- Federated Hermes, Inc.: 5.1% (Schedule 13G/A, filed Oct 7, 2026)
Who owns the most ATYR stock?
The largest institutional holders of aTYR PHARMA INC in the latest 13F filings are FEDERATED HERMES, INC. (FHI) ($5.08M), VANGUARD GROUP INC ($3.89M), VANGUARD CAPITAL MANAGEMENT LLC ($2.27M).
Are insiders buying or selling ATYR?
Over the last 12 months insiders bought $50.0K and sold $6.29K of aTYR PHARMA INC stock on the open market (SEC Form 4).
Which famous investors own ATYR?
Ken Griffin, Two Sigma, Izzy Englander, Renaissance Technologies.