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