Simplex Trading’s Altimmune ALT Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $623K | Sell |
202,400
-174,400
| -46% | -$740K | ﹤0.01% | 3020 |
|
|
2025
Q4 | $1.36M | Buy |
376,800
+63,400
| +20% | +$276K | ﹤0.01% | 2320 |
|
|
2025
Q3 | $1.18M | Sell |
313,400
-518,700
| -62% | -$2M | ﹤0.01% | 2881 |
|
|
2025
Q2 | $3.22M | Buy |
832,100
+478,900
| +136% | +$2.59M | ﹤0.01% | 1706 |
|
|
2025
Q1 | $1.77M | Sell |
353,200
-41,300
| -10% | -$262K | ﹤0.01% | 2157 |
|
|
2024
Q4 | $2.84M | Buy |
394,500
+61,000
| +18% | +$466K | ﹤0.01% | 1902 |
|
|
2024
Q3 | $2.05M | Buy |
333,500
+114,900
| +53% | +$778K | ﹤0.01% | 2258 |
|
|
2024
Q2 | $1.45M | Sell |
218,600
-9,300
| -4% | -$68.6K | ﹤0.01% | 2523 |
|
|
2024
Q1 | $2.32M | Sell |
227,900
-139,100
| -38% | -$1.41M | ﹤0.01% | 2259 |
|
|
2023
Q4 | $4.13M | Buy |
367,000
+340,900
| +1,306% | +$1.42M | ﹤0.01% | 1728 |
|
|
2023
Q3 | $67K | Buy |
26,100
+12,200
| +88% | +$35K | ﹤0.01% | 5516 |
|
|
2023
Q2 | $49K | Sell |
13,900
-130,300
| -90% | -$585K | ﹤0.01% | 5861 |
|
|
2023
Q1 | $608K | Sell |
144,200
-125,500
| -47% | -$1.49M | ﹤0.01% | 3074 |
|
|
2022
Q4 | $4.44M | Buy |
269,700
+85,600
| +46% | +$962K | ﹤0.01% | 1290 |
|
|
2022
Q3 | $2.35M | Buy |
184,100
+176,100
| +2,201% | +$2.6M | ﹤0.01% | 1813 |
|
|
2022
Q2 | $93K | Sell |
8,000
-12,000
| -60% | -$74K | ﹤0.01% | 5649 |
|
|
2022
Q1 | $121K | Buy |
20,000
+11,100
| +125% | +$81.7K | ﹤0.01% | 5873 |
|
|
2021
Q4 | $81K | Sell |
8,900
-25,000
| -74% | -$266K | ﹤0.01% | 6558 |
|
|
2021
Q3 | $340K | Sell |
33,900
-700
| -2% | -$8.51K | ﹤0.01% | 4699 |
|
|
2021
Q2 | $340K | Buy |
34,600
+34,290
| +11,061% | +$469K | ﹤0.01% | 4761 |
|
|
2021
Q1 | $438K | Buy |
+310
| New | +$5.01K | ﹤0.01% | 3558 |
|
|
2020
Q3 | – | Sell |
-367
| Closed | -$393K | – | 7710 |
|
|
2020
Q2 | $393K | Sell |
367
-125
| -25% | -$687 | ﹤0.01% | 3203 |
|
|
2020
Q1 | $157K | Buy |
492
+484
| +6,050% | +$1.11K | ﹤0.01% | 3864 |
|
|
2019
Q4 | $1K | Buy |
+8
| New | +$15 | ﹤0.01% | 7055 |
|
|
2019
Q3 | – | Sell |
-27
| Closed | -$6K | – | 7177 |
|
|
2019
Q2 | $6K | Sell |
27
-255
| -90% | -$682 | ﹤0.01% | 6345 |
|
|
2019
Q1 | $81K | Buy |
282
+269
| +2,069% | +$802 | ﹤0.01% | 4564 |
|
|
2018
Q4 | $2K | Buy |
+13
| New | +$46 | ﹤0.01% | 6527 |
|
|
2016
Q3 | – | Sell |
-2
| Closed | -$10K | – | 5719 |
|
|
2016
Q2 | $10K | Buy |
+2
| New | +$1.37K | ﹤0.01% | 3585 |
|
|
2016
Q1 | – | Hold |
0
| – | – | – | 4649 |
|
Other funds holding ALT
VCM
VPM
N
Simplex Trading's ALT Position: Q1 2026 in Review
Simplex Trading opened a new position in Altimmune (ALT) in Q1 2026: 22,841 shares worth $70.3K. The stake represents ﹤0.01% of the portfolio and ranks #5489 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ALT as recently as Q3 2025.
Simplex Trading first reported a position in ALT in Q3 2016 and has held it in 20 quarters since. The position peaked at $3.73M in Q4 2022. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.
- Simplex Trading held 22,841 shares of Altimmune worth $70.3K as of Q1 2026.
- Altimmune was a new Simplex Trading position in Q1 2026.
- Altimmune made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #5489 holding.
- Simplex Trading first reported a position in Altimmune in Q3 2016 and has held it in 20 quarters since.
- Simplex Trading's Altimmune position peaked at $3.73M in Q4 2022.
- 173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.
Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.