Jane Street
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Jane Street’s Atossa Therapeutics ATOS Stock Holding History

Jane Street’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
Q2 		$109K Buy
+56,602
New +$258K ﹤0.01% 10542
2026
Q1 		– Sell
-16,400
Closed -$145K – 11535
2025
Q4 		$145K Buy
16,400
+5,571
+51% +$70.4K ﹤0.01% 9959
2025
Q3 		$141K Sell
10,829
-19,753
-65% -$244K ﹤0.01% 9933
2025
Q2 		$381K Buy
+30,582
New +$366K ﹤0.01% 7422
2025
Q1 		– Sell
-8,447
Closed -$120K – 9390
2024
Q4 		$120K Sell
8,447
-682
-7% -$13.3K ﹤0.01% 8685
2024
Q3 		$208K Sell
9,129
-8,210
-47% -$166K ﹤0.01% 8595
2024
Q2 		$309K Buy
17,339
+14,735
+566% +$326K ﹤0.01% 7750
2024
Q1 		$70.3K Buy
+2,604
New +$41.8K ﹤0.01% 8664
2023
Q4 		– Sell
-1,153
Closed -$12.7K – 9160
2023
Q3 		$12.7K Sell
1,153
-4,105
-78% -$59.6K ﹤0.01% 8360
2023
Q2 		$99.4K Buy
5,258
+3,754
+250% +$45.5K ﹤0.01% 8003
2023
Q1 		$16.4K Sell
1,504
-1,421
-49% -$15.8K ﹤0.01% 8680
2022
Q4 		$23.2K Buy
2,925
+2,185
+295% +$25.1K ﹤0.01% 8574
2022
Q3 		$9K Sell
740
-4,546
-86% -$66K ﹤0.01% 9365
2022
Q2 		$86K Sell
5,286
-2,611
-33% -$41.1K ﹤0.01% 8717
2022
Q1 		$148K Sell
7,897
-1,369
-15% -$27.8K ﹤0.01% 9238
2021
Q4 		$222K Sell
9,266
-5,383
-37% -$197K ﹤0.01% 8661
2021
Q3 		$716K Sell
14,649
-73,594
-83% -$4.28M ﹤0.01% 6596
2021
Q2 		$8.37M Buy
88,243
+81,922
+1,296% +$4.34M ﹤0.01% 1926
2021
Q1 		$200K Buy
+6,321
New +$231K ﹤0.01% 8268
2019
Q1 		– Sell
-1,489
Closed -$23K – 4979
2018
Q4 		$23K Sell
1,489
-84
-5% -$1.66K ﹤0.01% 4780
2018
Q3 		$41K Buy
+1,573
New +$51.4K ﹤0.01% 4939
2018
Q2 		– Sell
-74
Closed -$6K – 4946
2018
Q1 		$6K Buy
+74
New +$6.89K ﹤0.01% 4724
2013
Q4 		– Sell
-8
Closed -$128K – 2317
2013
Q3 		$128K Buy
+8
New +$105K ﹤0.01% 2512

Other funds holding ATOS

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Jane Street's ATOS Position: Q2 2026 in Review

Jane Street opened a new position in Atossa Therapeutics (ATOS) in Q2 2026: 56,602 shares worth $109K. The stake represents ﹤0.01% of the portfolio and ranks #10542 among its holdings. This is a return to the name: Jane Street previously reported a position in ATOS as recently as Q4 2025.

Jane Street first reported a position in ATOS in Q3 2013 and has held it in 23 quarters since. The position peaked at $8.37M in Q2 2021. 31 funds tracked by Wall St. Rank hold ATOS as of Q2 2026.

  • Jane Street held 56,602 shares of Atossa Therapeutics worth $109K as of Q2 2026.
  • Atossa Therapeutics was a new Jane Street position in Q2 2026.
  • Atossa Therapeutics made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10542 holding.
  • Jane Street first reported a position in Atossa Therapeutics in Q3 2013 and has held it in 23 quarters since.
  • Jane Street's Atossa Therapeutics position peaked at $8.37M in Q2 2021.
  • 31 funds tracked by Wall St. Rank held Atossa Therapeutics as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.