Group One Trading
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Group One Trading’s Atossa Therapeutics ATOS Stock Holding History

Group One Trading’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
2026
Q1 		$3.2K Buy
609
+165
+37% +$1.04K ﹤0.01% 6903
2025
Q4 		$3.93K Buy
+444
New +$5.61K ﹤0.01% 7281
2025
Q3 		– Sell
-13
Closed -$161 – 8381
2025
Q2 		$160 Sell
13
-3,734
-100% -$44.6K ﹤0.01% 7761
2025
Q1 		$37.8K Buy
3,747
+2,852
+319% +$34.6K ﹤0.01% 5372
2024
Q4 		$12.7K Buy
+895
New +$17.5K ﹤0.01% 5976
2024
Q3 		– Sell
-1,613
Closed -$32.6K – 6622
2024
Q2 		$28.8K Sell
1,613
-5,501
-77% -$122K ﹤0.01% 4952
2024
Q1 		$192K Sell
7,114
-569
-7% -$9.14K ﹤0.01% 3596
2023
Q4 		$101K Sell
7,683
-1,033
-12% -$11.1K ﹤0.01% 4462
2023
Q3 		$96.3K Buy
8,716
+3,740
+75% +$54.3K ﹤0.01% 4494
2023
Q2 		$94K Buy
4,976
+707
+17% +$8.57K ﹤0.01% 4692
2023
Q1 		$46.4K Sell
4,269
-4,875
-53% -$54.4K ﹤0.01% 4905
2022
Q4 		$72.5K Buy
9,144
+7,668
+520% +$88.1K ﹤0.01% 4708
2022
Q3 		$18K Buy
+1,476
New +$21.4K ﹤0.01% 6122
2021
Q3 		– Sell
-109,633
Closed -$6.38M – 8150
2021
Q2 		$10.4M Buy
+109,633
New +$5.8M 0.01% 1048
2021
Q1 		– Sell
-7
Closed -$256 – 7550
2020
Q4 		$0 Sell
7
-60
-90% -$1.39K ﹤0.01% 6469
2020
Q3 		$2K Sell
67
-13
-16% -$624 ﹤0.01% 5804
2020
Q2 		$5K Buy
80
+47
+142% +$1.67K ﹤0.01% 5346
2020
Q1 		$1K Hold
33
– – ﹤0.01% 5047
2019
Q4 		$1K Hold
33
– – ﹤0.01% 4961
2019
Q3 		$1K Buy
33
+26
+371% +$823 ﹤0.01% 4970
2019
Q2 		$0 Buy
+7
New +$280 ﹤0.01% 4924

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 $5.72T AUM 30.48% 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 $2.9T AUM 29.55% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Group One Trading's ATOS Position: Q1 2026 in Review

Group One Trading increased its Atossa Therapeutics (ATOS) stake by 37% in Q1 2026, buying an estimated $1.04K and bringing the position to 609 shares worth $3.2K. The position accounts for ﹤0.01% of the portfolio, ranked #6903.

Group One Trading first reported a position in ATOS in Q2 2019 and has held it in 21 quarters since. The position peaked at $10.4M in Q2 2021. 33 funds tracked by Wall St. Rank hold ATOS as of Q1 2026.

  • Group One Trading held 609 shares of Atossa Therapeutics worth $3.2K as of Q1 2026.
  • Group One Trading bought 165 Atossa Therapeutics shares in Q1 2026, an estimated $1.04K.
  • Atossa Therapeutics made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #6903 holding.
  • Group One Trading first reported a position in Atossa Therapeutics in Q2 2019 and has held it in 21 quarters since.
  • Group One Trading's Atossa Therapeutics position peaked at $10.4M in Q2 2021.
  • 33 funds tracked by Wall St. Rank held Atossa Therapeutics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.