Northwestern Mutual Wealth Management
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Northwestern Mutual Wealth Management’s Atossa Therapeutics ATOS Stock Holding History

Northwestern Mutual Wealth Management’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 		$242 Buy
46
+13
+39% +$82 ﹤0.01% 3919
2025
Q4 		$295 Buy
+33
New +$417 ﹤0.01% 3772
2021
Q4 		– Sell
-6
Closed – – 3129
2021
Q3 		$0 Buy
+6
New +$349 ﹤0.01% 3001

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

Northwestern Mutual Wealth Management's ATOS Position: Q1 2026 in Review

Northwestern Mutual Wealth Management increased its Atossa Therapeutics (ATOS) stake by 39% in Q1 2026, buying an estimated $82 and bringing the position to 46 shares worth $242. The position accounts for ﹤0.01% of the portfolio, ranked #3919.

Northwestern Mutual Wealth Management first reported a position in ATOS in Q3 2021 and has held it in 3 quarters since. The position peaked at $295 in Q4 2025. 33 funds tracked by Wall St. Rank hold ATOS as of Q1 2026.

  • Northwestern Mutual Wealth Management held 46 shares of Atossa Therapeutics worth $242 as of Q1 2026.
  • Northwestern Mutual Wealth Management bought 13 Atossa Therapeutics shares in Q1 2026, an estimated $82.
  • Atossa Therapeutics made up ﹤0.01% of Northwestern Mutual Wealth Management's portfolio in Q1 2026, its #3919 holding.
  • Northwestern Mutual Wealth Management first reported a position in Atossa Therapeutics in Q3 2021 and has held it in 3 quarters since.
  • Northwestern Mutual Wealth Management's Atossa Therapeutics position peaked at $295 in Q4 2025.
  • 33 funds tracked by Wall St. Rank held Atossa Therapeutics as of Q1 2026.

Based on Northwestern Mutual Wealth Management's 13F filing for Q1 2026, filed 7 May 2026.