Wellington Management Group
ATYR

Wellington Management Group’s aTyr Pharma ATYR Stock Holding History

Wellington Management Group’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
-289,231
Closed -$209K – 2113
2025
Q3 		$209K Buy
289,231
+74,303
+35% +$337K ﹤0.01% 1944
2025
Q2 		$1.09M Buy
214,928
+46,186
+27% +$182K ﹤0.01% 1707
2025
Q1 		$510K Buy
+168,742
New +$615K ﹤0.01% 1819

Other funds holding ATYR

RA
Rosalind Advisors Toronto, Ontario, Canada $269M AUM 103.38% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $69.6B AUM 42.52% 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 $1.88T AUM 44.46% 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 $786B AUM 40.34% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Wellington Management Group's ATYR Position: Q4 2025 in Review

Wellington Management Group sold out of aTyr Pharma (ATYR) in Q4 2025, closing a stake of 289,231 shares — an estimated $209K sold.

Wellington Management Group first reported a position in ATYR in Q1 2025 and held it in 3 quarters. The position peaked at $1.09M in Q2 2025. 84 funds tracked by Wall St. Rank hold ATYR as of Q4 2025.

  • Wellington Management Group reported no remaining aTyr Pharma position as of Q4 2025 after selling out during the quarter.
  • Wellington Management Group sold 289,231 aTyr Pharma shares in Q4 2025, an estimated $209K.
  • Wellington Management Group first reported a position in aTyr Pharma in Q1 2025 and held it in 3 quarters.
  • Wellington Management Group's aTyr Pharma position peaked at $1.09M in Q2 2025.
  • 84 funds tracked by Wall St. Rank held aTyr Pharma as of Q4 2025.

Based on Wellington Management Group's 13F filing for Q4 2025, filed 17 Feb 2026.