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 		$199K Buy
37,900
+35,660
+1,592% +$226K ﹤0.01% 4113
2025
Q4 		$19.8K Buy
2,240
+7
+0.3% +$89 ﹤0.01% 6343
2025
Q3 		$29K Buy
2,233
+1,273
+133% +$15.7K ﹤0.01% 6400
2025
Q2 		$12K Sell
960
-1,133
-54% -$13.5K ﹤0.01% 6605
2025
Q1 		$21.1K Buy
2,093
+786
+60% +$9.54K ﹤0.01% 5784
2024
Q4 		$18.5K Buy
1,307
+54
+4% +$1.05K ﹤0.01% 5747
2024
Q3 		$28.6K Buy
+1,253
New +$25.3K ﹤0.01% 5025
2024
Q2 		– Sell
-387
Closed -$10.4K – 6690
2024
Q1 		$10.4K Buy
387
+234
+153% +$3.76K ﹤0.01% 5841
2023
Q4 		$2.02K Sell
153
-234
-60% -$2.52K ﹤0.01% 6816
2023
Q3 		$4.27K Buy
387
+234
+153% +$3.4K ﹤0.01% 6775
2023
Q2 		$2.9K Sell
153
-27
-15% -$327 ﹤0.01% 6951
2023
Q1 		$1.96K Sell
180
-1,133
-86% -$12.6K ﹤0.01% 6622
2022
Q4 		$10.4K Sell
1,313
-10,654
-89% -$122K ﹤0.01% 6011
2022
Q3 		$150K Sell
11,967
-2,440
-17% -$35.4K ﹤0.01% 4408
2022
Q2 		$236K Sell
14,407
-13,586
-49% -$214K ﹤0.01% 4135
2022
Q1 		$525K Sell
27,993
-14,474
-34% -$294K ﹤0.01% 3764
2021
Q4 		$1.02M Sell
42,467
-17,106
-29% -$626K ﹤0.01% 3343
2021
Q3 		$2.91M Sell
59,573
-122,647
-67% -$7.13M ﹤0.01% 2270
2021
Q2 		$17.3M Buy
182,220
+174,613
+2,295% +$9.24M 0.02% 716
2021
Q1 		$241K Buy
+7,607
New +$278K ﹤0.01% 4832

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.