Susquehanna International Group
ATYR

Susquehanna International Group’s aTyr Pharma ATYR Stock Holding History

Susquehanna International 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
2026
Q1 		$676K Buy
866,744
+102,001
+13% +$86.1K ﹤0.01% 8884
2025
Q4 		$599K Buy
764,743
+638,071
+504% +$524K ﹤0.01% 8376
2025
Q3 		$91.4K Sell
126,672
-127,346
-50% -$577K ﹤0.01% 11619
2025
Q2 		$1.29M Sell
254,018
-1,479,063
-85% -$5.82M ﹤0.01% 6798
2025
Q1 		$5.23M Buy
1,733,081
+945,239
+120% +$3.45M ﹤0.01% 3566
2024
Q4 		$2.85M Buy
787,842
+654,613
+491% +$1.98M ﹤0.01% 4571
2024
Q3 		$234K Buy
+133,229
New +$242K ﹤0.01% 10140
2023
Q3 		– Sell
-46,634
Closed -$101K – 13169
2023
Q2 		$101K Buy
+46,634
New +$102K ﹤0.01% 10943
2022
Q4 		– Sell
-45,542
Closed -$137K – 13886
2022
Q3 		$137K Sell
45,542
-997
-2% -$3.34K ﹤0.01% 11371
2022
Q2 		$132K Buy
+46,539
New +$168K ﹤0.01% 11192
2021
Q4 		– Sell
-81,781
Closed -$682K – 14051
2021
Q3 		$743K Buy
81,781
+70,942
+655% +$424K ﹤0.01% 8344
2021
Q2 		$53K Buy
+10,839
New +$46.2K ﹤0.01% 12285
2020
Q2 		– Sell
-10,268
Closed -$29K – 11078
2020
Q1 		$29K Buy
+10,268
New +$44.3K ﹤0.01% 9839
2019
Q1 		– Sell
-7,083
Closed -$49K – 9997
2018
Q4 		$49K Buy
7,083
+1,878
+36% +$15.7K ﹤0.01% 8490
2018
Q3 		$59K Buy
+5,205
New +$57K ﹤0.01% 8797
2017
Q2 		– Sell
-1,381
Closed -$68K – 9942
2017
Q1 		$68K Buy
+1,381
New +$63.1K ﹤0.01% 8519

Other funds holding ATYR

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
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Susquehanna International Group's ATYR Position: Q1 2026 in Review

Susquehanna International Group increased its aTyr Pharma (ATYR) stake by 13% in Q1 2026, buying an estimated $86.1K and bringing the position to 866,744 shares worth $676K. The position accounts for ﹤0.01% of the portfolio, ranked #8884.

Susquehanna International Group first reported a position in ATYR in Q1 2017 and has held it in 16 quarters since. The position peaked at $5.23M in Q1 2025. 111 funds tracked by Wall St. Rank hold ATYR as of Q1 2026.

  • Susquehanna International Group held 866,744 shares of aTyr Pharma worth $676K as of Q1 2026.
  • Susquehanna International Group bought 102,001 aTyr Pharma shares in Q1 2026, an estimated $86.1K.
  • aTyr Pharma made up ﹤0.01% of Susquehanna International Group's portfolio in Q1 2026, its #8884 holding.
  • Susquehanna International Group first reported a position in aTyr Pharma in Q1 2017 and has held it in 16 quarters since.
  • Susquehanna International Group's aTyr Pharma position peaked at $5.23M in Q1 2025.
  • 111 funds tracked by Wall St. Rank held aTyr Pharma as of Q1 2026.

Based on Susquehanna International Group's 13F filing for Q1 2026, filed 15 May 2026.