Quantbot Technologies’s Amphastar Pharmaceuticals AMPH Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | – | Sell |
-14,515
| Closed | -$389K | – | 1682 |
|
|
2025
Q4 | $389K | Sell |
14,515
-15,248
| -51% | -$393K | 0.01% | 1027 |
|
|
2025
Q3 | $793K | Sell |
29,763
-31,192
| -51% | -$805K | 0.02% | 845 |
|
|
2025
Q2 | $1.4M | Buy |
60,955
+39,846
| +189% | +$989K | 0.04% | 651 |
|
|
2025
Q1 | $612K | Sell |
21,109
-4,345
| -17% | -$139K | 0.02% | 833 |
|
|
2024
Q4 | $945K | Buy |
+25,454
| New | +$1.16M | 0.03% | 648 |
|
|
2024
Q3 | – | Sell |
-12,430
| Closed | -$497K | – | 1422 |
|
|
2024
Q2 | $497K | Buy |
12,430
+1,482
| +14% | +$61.4K | 0.02% | 746 |
|
|
2024
Q1 | $481K | Buy |
+10,948
| New | +$565K | 0.03% | 755 |
|
|
2022
Q2 | – | Sell |
-600
| Closed | -$21K | – | 1675 |
|
|
2022
Q1 | $21K | Buy |
+600
| New | +$17K | ﹤0.01% | 1350 |
|
|
2021
Q2 | – | Sell |
-2,900
| Closed | -$53K | – | 1429 |
|
|
2021
Q1 | $53K | Buy |
2,900
+2,600
| +867% | +$48.3K | 0.01% | 996 |
|
|
2020
Q4 | $6K | Buy |
+300
| New | +$5.84K | ﹤0.01% | 1145 |
|
|
2019
Q4 | – | Sell |
-4,500
| Closed | -$89K | – | 1195 |
|
|
2019
Q3 | $89K | Sell |
4,500
-1,300
| -22% | -$27.1K | 0.01% | 858 |
|
|
2019
Q2 | $122K | Buy |
+5,800
| New | +$121K | 0.01% | 721 |
|
|
2017
Q1 | – | Sell |
-127
| Closed | -$2K | – | 1114 |
|
|
2016
Q4 | $2K | Sell |
127
-7,233
| -98% | -$141K | ﹤0.01% | 1009 |
|
|
2016
Q3 | $139K | Buy |
+7,360
| New | +$134K | 0.02% | 648 |
|
|
2015
Q3 | – | Sell |
-1,300
| Closed | -$22K | – | 1175 |
|
|
2015
Q2 | $22K | Buy |
+1,300
| New | +$20.3K | ﹤0.01% | 926 |
|
Other funds holding AMPH
VCM
BTW