Susquehanna International Group
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Susquehanna International Group’s Atossa Therapeutics ATOS Stock Holding History

Susquehanna International Group’s Portfolio ATOS Stock Details ATOS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-1,800
Closed -$23.5K – 12298
2025
Q3 		$23.5K Buy
+1,800
New +$22.2K ﹤0.01% 12024
2024
Q4 		– Sell
-24,047
Closed -$548K – 12149
2024
Q3 		$548K Buy
24,047
+2,687
+13% +$54.2K ﹤0.01% 8242
2024
Q2 		$381K Buy
21,360
+18,640
+685% +$412K ﹤0.01% 8912
2024
Q1 		$73.4K Sell
2,720
-1,800
-40% -$28.9K ﹤0.01% 11376
2023
Q4 		$59.7K Buy
4,520
+3,280
+265% +$35.4K ﹤0.01% 11642
2023
Q3 		$13.8K Sell
1,240
-3,527
-74% -$51.2K ﹤0.01% 11677
2023
Q2 		$90.1K Buy
4,767
+1,900
+66% +$23K ﹤0.01% 11026
2023
Q1 		$31K Sell
2,867
-9,673
-77% -$108K ﹤0.01% 11897
2022
Q4 		$99.7K Sell
12,540
-7,173
-36% -$82.4K ﹤0.01% 10963
2022
Q3 		$245K Sell
19,713
-714
-3% -$10.4K ﹤0.01% 10312
2022
Q2 		$334K Buy
20,427
+1,974
+11% +$31.1K ﹤0.01% 9278
2022
Q1 		$346K Sell
18,453
-18,434
-50% -$374K ﹤0.01% 9913
2021
Q4 		$885K Sell
36,887
-64,546
-64% -$2.36M ﹤0.01% 7606
2021
Q3 		$4.96M Buy
101,433
+880
+0.9% +$51.2K ﹤0.01% 3976
2021
Q2 		$9.53M Buy
100,553
+39,193
+64% +$2.07M ﹤0.01% 2992
2021
Q1 		$1.94M Buy
61,360
+58,473
+2,025% +$2.14M ﹤0.01% 6005
2020
Q4 		$41K Buy
+2,887
New +$66.8K ﹤0.01% 10792

Other funds holding ATOS

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

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

Susquehanna International Group sold out of Atossa Therapeutics (ATOS) in Q1 2026, closing a stake of 38,839 shares — an estimated $246K sold.

Susquehanna International Group first reported a position in ATOS in Q1 2018 and held it in 23 quarters. The position peaked at $16.4M in Q2 2021. 33 funds tracked by Wall St. Rank hold ATOS as of Q1 2026.

  • Susquehanna International Group reported no remaining Atossa Therapeutics position as of Q1 2026 after selling out during the quarter.
  • Susquehanna International Group sold 38,839 Atossa Therapeutics shares in Q1 2026, an estimated $246K.
  • Susquehanna International Group first reported a position in Atossa Therapeutics in Q1 2018 and held it in 23 quarters.
  • Susquehanna International Group's Atossa Therapeutics position peaked at $16.4M in Q2 2021.
  • 33 funds tracked by Wall St. Rank held Atossa Therapeutics as of Q1 2026.

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