Morgan Stanley’s Atossa Therapeutics ATOS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$85.2K Buy
16,202
+12,102
+295% +$76.6K ﹤0.01% 6226
2025
Q4
$36.3K Sell
4,100
-3,390
-45% -$42.9K ﹤0.01% 6527
2025
Q3
$97.4K Sell
7,490
-3,237
-30% -$40K ﹤0.01% 6164
2025
Q2
$134K Sell
10,727
-8,219
-43% -$98.3K ﹤0.01% 6026
2025
Q1
$191K Sell
18,946
-11,200
-37% -$136K ﹤0.01% 5745
2024
Q4
$427K Sell
30,146
-355
-1% -$6.93K ﹤0.01% 5491
2024
Q3
$695K Buy
30,501
+91
+0.3% +$1.84K ﹤0.01% 5241
2024
Q2
$543K Sell
30,410
-20,618
-40% -$456K ﹤0.01% 5255
2024
Q1
$1.38M Buy
51,028
+35,721
+233% +$574K ﹤0.01% 4797
2023
Q4
$202K Buy
15,307
+5,323
+53% +$57.4K ﹤0.01% 5944
2023
Q3
$110K Sell
9,984
-3,075
-24% -$44.6K ﹤0.01% 5853
2023
Q2
$247K Buy
13,059
+1,675
+15% +$20.3K ﹤0.01% 5548
2023
Q1
$124K Sell
11,384
-1,529
-12% -$17.1K ﹤0.01% 5928
2022
Q4
$102K Buy
12,913
+659
+5% +$7.57K ﹤0.01% 5964
2022
Q3
$152K Sell
12,254
-5,505
-31% -$79.9K ﹤0.01% 5867
2022
Q2
$291K Buy
17,759
+7,919
+80% +$125K ﹤0.01% 5703
2022
Q1
$184K Sell
9,840
-424
-4% -$8.61K ﹤0.01% 5972
2021
Q4
$246K Sell
10,264
-5,611
-35% -$205K ﹤0.01% 5955
2021
Q3
$776K Sell
15,875
-4,923
-24% -$286K ﹤0.01% 5215
2021
Q2
$1.97M Buy
20,798
+7,616
+58% +$403K ﹤0.01% 4650
2021
Q1
$418K Buy
13,182
+13,180
+659,000% +$482K ﹤0.01% 5249
2020
Q4
$0 Sell
2
-8,768
-100% -$203K ﹤0.01% 7032
2020
Q3
$318K Buy
8,770
+8,763
+125,186% +$421K ﹤0.01% 4871
2020
Q2
$0 Hold
7
﹤0.01% 6587
2020
Q1
$0 Hold
7
﹤0.01% 6560
2019
Q4
$0 Hold
7
﹤0.01% 6640
2019
Q3
$0 Sell
7
-120
-94% -$3.8K ﹤0.01% 6628
2019
Q2
$5K Sell
127
-32
-20% -$1.28K ﹤0.01% 6301
2019
Q1
$8K Buy
159
+93
+141% +$2.71K ﹤0.01% 6231
2018
Q4
$1K Buy
+66
New +$1.31K ﹤0.01% 6479
2017
Q4
Sell
-1
Closed 6563
2017
Q3
$0 Buy
+1
New +$79 ﹤0.01% 6527
2016
Q2
Hold
0
6501
2016
Q1
Hold
0
6562
2015
Q4
Hold
0
6656
2015
Q3
Hold
0
6604
2015
Q2
Hold
0
6637
2015
Q1
Hold
0
6543
2014
Q4
Hold
0
6560
2014
Q3
Hold
0
6563
2014
Q2
Sell
-4
Closed -$15.6K 6509
2014
Q1
$19K Buy
+4
New +$23.7K ﹤0.01% 5973
2013
Q4
Hold
0
6248

Other funds holding ATOS

Morgan Stanley's ATOS Position: Q1 2026 in Review

Morgan Stanley increased its Atossa Therapeutics (ATOS) stake by 295% in Q1 2026, buying an estimated $76.6K and bringing the position to 16,202 shares worth $85.2K. The position accounts for ﹤0.01% of the portfolio, ranked #6226.

Morgan Stanley first reported a position in ATOS in Q1 2014 and has held it in 32 quarters since. The position peaked at $1.97M in Q2 2021. 33 funds tracked by Wall St. Rank hold ATOS as of Q1 2026.

  • Morgan Stanley held 16,202 shares of Atossa Therapeutics worth $85.2K as of Q1 2026.
  • Morgan Stanley bought 12,102 Atossa Therapeutics shares in Q1 2026, an estimated $76.6K.
  • Atossa Therapeutics made up ﹤0.01% of Morgan Stanley's portfolio in Q1 2026, its #6226 holding.
  • Morgan Stanley first reported a position in Atossa Therapeutics in Q1 2014 and has held it in 32 quarters since.
  • Morgan Stanley's Atossa Therapeutics position peaked at $1.97M in Q2 2021.
  • 33 funds tracked by Wall St. Rank held Atossa Therapeutics as of Q1 2026.

Based on Morgan Stanley's 13F filing for Q1 2026, filed 15 May 2026.