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 		$22.1K Sell
4,200
-287
-6% -$1.82K ﹤0.01% 5898
2025
Q4 		$39.7K Sell
4,487
-6,766
-60% -$85.6K ﹤0.01% 5784
2025
Q3 		$146K Buy
11,253
+1,580
+16% +$19.5K ﹤0.01% 4985
2025
Q2 		$120K Buy
9,673
+4,980
+106% +$59.5K ﹤0.01% 4805
2025
Q1 		$47.4K Sell
4,693
-180
-4% -$2.19K ﹤0.01% 5208
2024
Q4 		$69K Sell
4,873
-394
-7% -$7.69K ﹤0.01% 4819
2024
Q3 		$120K Sell
5,267
-2,733
-34% -$55.2K ﹤0.01% 4022
2024
Q2 		$143K Sell
8,000
-787
-9% -$17.4K ﹤0.01% 3673
2024
Q1 		$237K Sell
8,787
-13,306
-60% -$214K ﹤0.01% 3411
2023
Q4 		$292K Buy
22,093
+11,306
+105% +$122K ﹤0.01% 3529
2023
Q3 		$119K Buy
10,787
+134
+1% +$1.94K ﹤0.01% 4293
2023
Q2 		$201K Buy
10,653
+586
+6% +$7.11K ﹤0.01% 3919
2023
Q1 		$109K Sell
10,067
-45,613
-82% -$509K ﹤0.01% 4234
2022
Q4 		$441K Buy
55,680
+900
+2% +$10.3K ﹤0.01% 3157
2022
Q3 		$685K Sell
54,780
-2,587
-5% -$37.6K ﹤0.01% 2925
2022
Q2 		$938K Sell
57,367
-17,006
-23% -$268K ﹤0.01% 2815
2022
Q1 		$1.4M Sell
74,373
-95,054
-56% -$1.93M ﹤0.01% 2756
2021
Q4 		$4.07M Sell
169,427
-51,713
-23% -$1.89M ﹤0.01% 1891
2021
Q3 		$10.8M Sell
221,140
-32,667
-13% -$1.9M 0.01% 1010
2021
Q2 		$24.1M Buy
253,807
+118,967
+88% +$6.3M 0.03% 531
2021
Q1 		$4.27M Buy
+134,840
New +$4.93M 0.01% 1685
2020
Q4 		– Sell
-60
Closed -$2K – 6468
2020
Q3 		$2K Hold
60
– – ﹤0.01% 5803
2020
Q2 		$3K Buy
+60
New +$2.13K ﹤0.01% 5477

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.