AQR Capital Management
ATYR

AQR Capital Management’s aTyr Pharma ATYR Stock Holding History

AQR Capital Management’s Portfolio ATYR Stock Details ATYR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.56M Buy
2,610,548
+2,114,530
+426% +$1.38M ﹤0.01% 2773
2026
Q1 		$387K Sell
496,018
-273,802
-36% -$231K ﹤0.01% 3274
2025
Q4 		$603K Buy
+769,820
New +$632K ﹤0.01% 2816

Other funds holding ATYR

Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $69.6B AUM 42.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
KCM
Kalehua Capital Management Dallas, Texas $174M AUM
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

AQR Capital Management's ATYR Position: Q2 2026 in Review

AQR Capital Management increased its aTyr Pharma (ATYR) stake by 426% in Q2 2026, buying an estimated $1.38M and bringing the position to 2,610,548 shares worth $1.56M. The position accounts for ﹤0.01% of the portfolio, ranked #2773.

AQR Capital Management first reported a position in ATYR in Q4 2025 and has held it in 3 quarters since. 90 funds tracked by Wall St. Rank hold ATYR as of Q2 2026.

  • AQR Capital Management held 2,610,548 shares of aTyr Pharma worth $1.56M as of Q2 2026.
  • AQR Capital Management bought 2,114,530 aTyr Pharma shares in Q2 2026, an estimated $1.38M.
  • aTyr Pharma made up ﹤0.01% of AQR Capital Management's portfolio in Q2 2026, its #2773 holding.
  • AQR Capital Management first reported a position in aTyr Pharma in Q4 2025 and has held it in 3 quarters since.
  • 90 funds tracked by Wall St. Rank held aTyr Pharma as of Q2 2026.

Based on AQR Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.