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 | $231K | Sell |
75,000
-487,600
| -87% | -$2.07M | ﹤0.01% | 4132 |
|
|
2025
Q4 | $2.03M | Buy |
562,600
+68,500
| +14% | +$299K | ﹤0.01% | 1972 |
|
|
2025
Q3 | $1.86M | Buy |
494,100
+152,300
| +45% | +$588K | ﹤0.01% | 2403 |
|
|
2025
Q2 | $1.32M | Buy |
341,800
+229,600
| +205% | +$1.24M | ﹤0.01% | 2496 |
|
|
2025
Q1 | $561K | Sell |
112,200
-169,400
| -60% | -$1.07M | ﹤0.01% | 3275 |
|
|
2024
Q4 | $2.03M | Buy |
281,600
+82,100
| +41% | +$627K | ﹤0.01% | 2177 |
|
|
2024
Q3 | $1.22M | Buy |
199,500
+15,300
| +8% | +$104K | ﹤0.01% | 2726 |
|
|
2024
Q2 | $1.22M | Buy |
184,200
+38,400
| +26% | +$283K | ﹤0.01% | 2708 |
|
|
2024
Q1 | $1.48M | Sell |
145,800
-29,800
| -17% | -$303K | ﹤0.01% | 2701 |
|
|
2023
Q4 | $1.98M | Buy |
175,600
+106,200
| +153% | +$443K | ﹤0.01% | 2367 |
|
|
2023
Q3 | $180K | Buy |
69,400
+30,800
| +80% | +$88.4K | ﹤0.01% | 4455 |
|
|
2023
Q2 | $136K | Sell |
38,600
-168,700
| -81% | -$757K | ﹤0.01% | 4721 |
|
|
2023
Q1 | $874K | Buy |
207,300
+139,300
| +205% | +$1.65M | ﹤0.01% | 2711 |
|
|
2022
Q4 | $1.12M | Sell |
68,000
-166,800
| -71% | -$1.87M | ﹤0.01% | 2353 |
|
|
2022
Q3 | $3M | Buy |
234,800
+223,000
| +1,890% | +$3.29M | ﹤0.01% | 1615 |
|
|
2022
Q2 | $138K | Buy |
11,800
+9,000
| +321% | +$55.5K | ﹤0.01% | 5104 |
|
|
2022
Q1 | $17K | Buy |
2,800
+1,400
| +100% | +$10.3K | ﹤0.01% | 8393 |
|
|
2021
Q4 | $12K | Sell |
1,400
-16,300
| -92% | -$173K | ﹤0.01% | 8846 |
|
|
2021
Q3 | $177K | Sell |
17,700
-2,200
| -11% | -$26.8K | ﹤0.01% | 5787 |
|
|
2021
Q2 | $196K | Buy |
19,900
+19,758
| +13,914% | +$270K | ﹤0.01% | 5711 |
|
|
2021
Q1 | $200K | Buy |
+142
| New | +$2.3K | ﹤0.01% | 4739 |
|
|
2020
Q3 | – | Sell |
-144
| Closed | -$154K | – | 7711 |
|
|
2020
Q2 | $154K | Sell |
144
-310
| -68% | -$1.7K | ﹤0.01% | 4296 |
|
|
2020
Q1 | $145K | Buy |
+454
| New | +$1.04K | ﹤0.01% | 3958 |
|
|
2019
Q4 | – | Sell |
-20
| Closed | -$3K | – | 7222 |
|
|
2019
Q3 | $3K | Sell |
20
-71
| -78% | -$157 | ﹤0.01% | 6767 |
|
|
2019
Q2 | $21K | Buy |
91
+19
| +26% | +$51 | ﹤0.01% | 5559 |
|
|
2019
Q1 | $20K | Buy |
+72
| New | +$215 | ﹤0.01% | 5708 |
|
|
2018
Q3 | – | Hold |
0
| – | -$2K | – | 7331 |
|
|
2018
Q2 | – | Hold |
0
| – | – | – | 7011 |
|
|
2017
Q1 | – | Sell |
-2
| Closed | -$28K | – | 6080 |
|
|
2016
Q4 | $28K | Buy |
2
+1
| +100% | +$896 | ﹤0.01% | 2717 |
|
|
2016
Q3 | $87K | Buy |
+1
| New | +$784 | 0.01% | 1629 |
|
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.