Two Sigma Securities
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Two Sigma Securities’s aTyr Pharma ATYR Stock Holding History

Two Sigma Securities’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
Q1 		– Sell
-975
Closed -$30.5K – 2308
2025
Q4 		$30.5K Buy
+975
New +$32K ﹤0.01% 1122
2025
Q2 		– Sell
-298
Closed -$36K – 2195
2025
Q1 		$36K Buy
+298
New +$43.5K 0.01% 1031
2024
Q4 		– Sell
-325
Closed -$22.9K – 3438
2024
Q3 		$22.9K Buy
+325
New +$23.7K ﹤0.01% 2477
2024
Q2 		– Sell
-437
Closed -$34.1K – 3797
2024
Q1 		$34.1K Buy
+437
New +$30.5K ﹤0.01% 2616
2023
Q3 		– Sell
-300
Closed -$25.9K – 3577
2023
Q2 		$25.9K Buy
+300
New +$26.2K ﹤0.01% 2475
2019
Q3 		– Sell
-41
Closed -$9K – 2529
2019
Q2 		$9K Buy
+41
New +$11.1K ﹤0.01% 2001
2018
Q4 		– Sell
-18
Closed -$8K – 2930
2018
Q3 		$8K Buy
+18
New +$7.88K ﹤0.01% 2504

Other funds holding ATYR

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
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
GSA Capital Partners
GSA Capital Partners London, United Kingdom $1.59B AUM 39.8% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Two Sigma Securities's ATYR Position: Q1 2026 in Review

Two Sigma Securities sold out of aTyr Pharma (ATYR) in Q1 2026, closing a stake of 975 shares — an estimated $30.5K sold.

Two Sigma Securities first reported a position in ATYR in Q3 2018 and held it in 7 quarters. The position peaked at $36K in Q1 2025. 109 funds tracked by Wall St. Rank hold ATYR as of Q1 2026.

  • Two Sigma Securities reported no remaining aTyr Pharma position as of Q1 2026 after selling out during the quarter.
  • Two Sigma Securities sold 975 aTyr Pharma shares in Q1 2026, an estimated $30.5K.
  • Two Sigma Securities first reported a position in aTyr Pharma in Q3 2018 and held it in 7 quarters.
  • Two Sigma Securities's aTyr Pharma position peaked at $36K in Q1 2025.
  • 109 funds tracked by Wall St. Rank held aTyr Pharma as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.