Arrowstreet Capital’s Amphastar Pharmaceuticals AMPH Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$1.87M Buy
+81,239
New +$1.87M ﹤0.01% 1457
2024
Q2
Sell
-22,539
Closed -$990K 1499
2024
Q1
$990K Buy
+22,539
New +$990K ﹤0.01% 1318
2023
Q4
Sell
-28,230
Closed -$1.3M 1397
2023
Q3
$1.3M Sell
28,230
-869
-3% -$40K ﹤0.01% 933
2023
Q2
$1.67M Sell
29,099
-45,175
-61% -$2.6M ﹤0.01% 872
2023
Q1
$2.79M Sell
74,274
-91,766
-55% -$3.44M ﹤0.01% 839
2022
Q4
$4.65M Sell
166,040
-35,025
-17% -$981K 0.01% 695
2022
Q3
$5.65M Sell
201,065
-103,607
-34% -$2.91M 0.01% 629
2022
Q2
$10.6M Sell
304,672
-86,913
-22% -$3.02M 0.02% 485
2022
Q1
$14.1M Sell
391,585
-24,464
-6% -$878K 0.02% 467
2021
Q4
$9.69M Buy
416,049
+217,577
+110% +$5.07M 0.01% 661
2021
Q3
$3.77M Buy
198,472
+52,554
+36% +$999K ﹤0.01% 997
2021
Q2
$2.94M Buy
145,918
+90,049
+161% +$1.82M ﹤0.01% 1231
2021
Q1
$1.02M Buy
+55,869
New +$1.02M ﹤0.01% 1785
2020
Q1
Sell
-520,984
Closed -$10.1M 1848
2019
Q4
$10.1M Buy
520,984
+67,149
+15% +$1.3M 0.02% 609
2019
Q3
$9M Buy
453,835
+287,533
+173% +$5.7M 0.02% 530
2019
Q2
$3.51M Buy
166,302
+15,761
+10% +$333K 0.01% 747
2019
Q1
$3.08M Buy
+150,541
New +$3.08M 0.01% 964
2018
Q3
Sell
-34,840
Closed -$532K 1067
2018
Q2
$532K Buy
+34,840
New +$532K ﹤0.01% 910
2016
Q2
Sell
-48,212
Closed -$579K 1320
2016
Q1
$579K Sell
48,212
-186,910
-79% -$2.24M ﹤0.01% 1093
2015
Q4
$3.35M Buy
235,122
+76,572
+48% +$1.09M 0.02% 661
2015
Q3
$1.85M Buy
+158,550
New +$1.85M 0.01% 765