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
2022
Q2 		– Sell
-1,160
Closed -$22K – 9623
2022
Q1 		$22K Sell
1,160
-4,193
-78% -$85.2K ﹤0.01% 9906
2021
Q4 		$128K Sell
5,353
-4,374
-45% -$160K ﹤0.01% 9103
2021
Q3 		$476K Sell
9,727
-73,000
-88% -$4.25M ﹤0.01% 7364
2021
Q2 		$7.84M Buy
82,727
+77,474
+1,475% +$4.1M ﹤0.01% 2006
2021
Q1 		$166K Buy
+5,253
New +$192K ﹤0.01% 8395

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.