Simplex Trading
ATYR

Simplex Trading’s aTyr Pharma ATYR Stock Holding History

Simplex Trading’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 		$92.1K Sell
154,200
-1,300
-0.8% -$849 ﹤0.01% 5654
2026
Q1 		$121K Sell
155,500
-7,800
-5% -$6.58K ﹤0.01% 4860
2025
Q4 		$128K Sell
163,300
-244,500
-60% -$201K ﹤0.01% 4721
2025
Q3 		$294K Buy
407,800
+157,800
+63% +$715K ﹤0.01% 4489
2025
Q2 		$1.27M Buy
250,000
+218,500
+694% +$860K ﹤0.01% 2532
2025
Q1 		$95K Buy
31,500
+28,700
+1,025% +$105K ﹤0.01% 5110
2024
Q4 		$10K Buy
+2,800
New +$8.48K ﹤0.01% 7228
2023
Q3 		– Sell
-49,500
Closed -$106K – 10045
2023
Q2 		$106K Buy
49,500
+46,000
+1,314% +$100K ﹤0.01% 5018
2023
Q1 		$7K Buy
3,500
+600
+21% +$1.31K ﹤0.01% 7859
2022
Q4 		$6K Sell
2,900
-500
-15% -$1.18K ﹤0.01% 7989
2022
Q3 		$10K Sell
3,400
-6,000
-64% -$20.1K ﹤0.01% 8279
2022
Q2 		$26K Sell
9,400
-5,900
-39% -$21.3K ﹤0.01% 7313
2022
Q1 		$81K Buy
15,300
+5,600
+58% +$31.7K ﹤0.01% 6456
2021
Q4 		$72K Buy
9,700
+4,500
+87% +$37.6K ﹤0.01% 6743
2021
Q3 		$26K Sell
5,200
-100
-2% -$598 ﹤0.01% 8212
2021
Q2 		$25K Buy
+5,300
New +$22.6K ﹤0.01% 8404

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
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 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

Simplex Trading's ATYR Position: Q2 2026 in Review

Simplex Trading sold out of aTyr Pharma (ATYR) in Q2 2026, closing a stake of 1,335 shares — an estimated $872 sold.

Simplex Trading first reported a position in ATYR in Q4 2018 and held it in 11 quarters. The position peaked at $292K in Q1 2025. 90 funds tracked by Wall St. Rank hold ATYR as of Q2 2026.

  • Simplex Trading reported no remaining aTyr Pharma position as of Q2 2026 after selling out during the quarter.
  • Simplex Trading sold 1,335 aTyr Pharma shares in Q2 2026, an estimated $872.
  • Simplex Trading first reported a position in aTyr Pharma in Q4 2018 and held it in 11 quarters.
  • Simplex Trading's aTyr Pharma position peaked at $292K in Q1 2025.
  • 90 funds tracked by Wall St. Rank held aTyr Pharma as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.