Renaissance Technologies’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 | $573K | Sell |
109,007
-28,516
| -21% | -$181K | ﹤0.01% | 2546 |
|
|
2025
Q4 | $1.22M | Buy |
137,523
+34,279
| +33% | +$433K | ﹤0.01% | 2170 |
|
|
2025
Q3 | $1.34M | Sell |
103,244
-17,573
| -15% | -$217K | ﹤0.01% | 2328 |
|
|
2025
Q2 | $1.5M | Sell |
120,817
-2,856
| -2% | -$34.1K | ﹤0.01% | 2287 |
|
|
2025
Q1 | $1.25M | Buy |
123,673
+19,831
| +19% | +$241K | ﹤0.01% | 2267 |
|
|
2024
Q4 | $1.47M | Buy |
103,842
+16,504
| +19% | +$322K | ﹤0.01% | 2260 |
|
|
2024
Q3 | $1.99M | Sell |
87,338
-16,056
| -16% | -$324K | ﹤0.01% | 2027 |
|
|
2024
Q2 | $1.85M | Buy |
103,394
+10,969
| +12% | +$243K | ﹤0.01% | 1925 |
|
|
2024
Q1 | $2.5M | Buy |
92,425
+6,807
| +8% | +$109K | ﹤0.01% | 1884 |
|
|
2023
Q4 | $1.13M | Buy |
85,618
+2,793
| +3% | +$30.1K | ﹤0.01% | 2327 |
|
|
2023
Q3 | $915K | Buy |
82,825
+11,220
| +16% | +$163K | ﹤0.01% | 2369 |
|
|
2023
Q2 | $1.35M | Buy |
71,605
+9,200
| +15% | +$112K | ﹤0.01% | 2264 |
|
|
2023
Q1 | $679K | Buy |
62,405
+6,087
| +11% | +$67.9K | ﹤0.01% | 2706 |
|
|
2022
Q4 | $446K | Sell |
56,318
-16,729
| -23% | -$192K | ﹤0.01% | 3012 |
|
|
2022
Q3 | $913K | Sell |
73,047
-59,619
| -45% | -$866K | ﹤0.01% | 2554 |
|
|
2022
Q2 | $2.17M | Sell |
132,666
-7,367
| -5% | -$116K | ﹤0.01% | 2125 |
|
|
2022
Q1 | $2.63M | Buy |
140,033
+62,010
| +79% | +$1.26M | ﹤0.01% | 2019 |
|
|
2021
Q4 | $1.87M | Buy |
+78,023
| New | +$2.86M | ﹤0.01% | 2193 |
|
|
2021
Q2 | – | Sell |
-220,276
| Closed | -$6.97M | – | 3440 |
|
|
2021
Q1 | $6.97M | Buy |
220,276
+187,423
| +570% | +$6.85M | 0.01% | 1445 |
|
|
2020
Q4 | $468K | Buy |
32,853
+27,888
| +562% | +$646K | ﹤0.01% | 2846 |
|
|
2020
Q3 | $180K | Buy |
+4,965
| New | +$238K | ﹤0.01% | 3131 |
|
|
2020
Q1 | – | Sell |
-1,747
| Closed | -$41K | – | 3431 |
|
|
2019
Q4 | $41K | Buy |
+1,747
| New | +$41K | ﹤0.01% | 3407 |
|
|
2018
Q1 | – | Sell |
-60
| Closed | -$3K | – | 3359 |
|
|
2017
Q4 | $3K | Sell |
60
-1,804
| -97% | -$131K | ﹤0.01% | 3303 |
|
|
2017
Q3 | $178K | Sell |
1,864
-144
| -7% | -$11.4K | ﹤0.01% | 3021 |
|
|
2017
Q2 | $181K | Buy |
2,008
+1,242
| +162% | +$128K | ﹤0.01% | 3012 |
|
|
2017
Q1 | $105K | Buy |
766
+261
| +52% | +$66.6K | ﹤0.01% | 3078 |
|
|
2016
Q4 | $128K | Buy |
505
+275
| +120% | +$85.7K | ﹤0.01% | 3064 |
|
|
2016
Q3 | $87K | Buy |
230
+100
| +77% | +$60K | ﹤0.01% | 3194 |
|
|
2016
Q2 | $99K | Buy |
130
+29
| +29% | +$23.5K | ﹤0.01% | 3161 |
|
|
2016
Q1 | $94K | Buy |
101
+60
| +146% | +$55.6K | ﹤0.01% | 3222 |
|
|
2015
Q4 | $35K | Buy |
+41
| New | +$63.1K | ﹤0.01% | 3208 |
|
Other funds holding ATOS
VCM
VFT
Renaissance Technologies's ATOS Position: Q1 2026 in Review
Renaissance Technologies reduced its Atossa Therapeutics (ATOS) stake by 21% in Q1 2026, selling an estimated $181K and leaving 109,007 shares worth $573K. The position accounts for ﹤0.01% of the portfolio, ranked #2546.
Renaissance Technologies first reported a position in ATOS in Q4 2015 and has held it in 31 quarters since. The position peaked at $6.97M in Q1 2021. 33 funds tracked by Wall St. Rank hold ATOS as of Q1 2026.
- Renaissance Technologies held 109,007 shares of Atossa Therapeutics worth $573K as of Q1 2026.
- Renaissance Technologies sold 28,516 Atossa Therapeutics shares in Q1 2026, an estimated $181K.
- Atossa Therapeutics made up ﹤0.01% of Renaissance Technologies's portfolio in Q1 2026, its #2546 holding.
- Renaissance Technologies first reported a position in Atossa Therapeutics in Q4 2015 and has held it in 31 quarters since.
- Renaissance Technologies's Atossa Therapeutics position peaked at $6.97M in Q1 2021.
- 33 funds tracked by Wall St. Rank held Atossa Therapeutics as of Q1 2026.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.