State of Wisconsin Investment Board
ATYR

State of Wisconsin Investment Board’s aTyr Pharma ATYR Stock Holding History

State of Wisconsin Investment Board’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
2025
Q4 		– Sell
-438,262
Closed -$316K – 2596
2025
Q3 		$316K Buy
+438,262
New +$1.99M ﹤0.01% 2086

Other funds holding ATYR

RA
Rosalind Advisors Toronto, Ontario, Canada $249M AUM 80.12% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

State of Wisconsin Investment Board's ATYR Position: Q4 2025 in Review

State of Wisconsin Investment Board sold out of aTyr Pharma (ATYR) in Q4 2025, closing a stake of 438,262 shares — an estimated $316K sold.

State of Wisconsin Investment Board first reported a position in ATYR in Q3 2025 and held it in 1 quarter. The position peaked at $316K in Q3 2025. 84 funds tracked by Wall St. Rank hold ATYR as of Q4 2025.

  • State of Wisconsin Investment Board reported no remaining aTyr Pharma position as of Q4 2025 after selling out during the quarter.
  • State of Wisconsin Investment Board sold 438,262 aTyr Pharma shares in Q4 2025, an estimated $316K.
  • State of Wisconsin Investment Board first reported a position in aTyr Pharma in Q3 2025 and held it in 1 quarter.
  • State of Wisconsin Investment Board's aTyr Pharma position peaked at $316K in Q3 2025.
  • 84 funds tracked by Wall St. Rank held aTyr Pharma as of Q4 2025.

Based on State of Wisconsin Investment Board's 13F filing for Q4 2025, filed 17 Feb 2026.