Dimensional Fund Advisors’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 | $39.7M | Buy |
2,027,947
+228,262
| +13% | +$5.58M | 0.01% | 1620 |
|
|
2025
Q4 | $48.2M | Buy |
1,799,685
+44,020
| +3% | +$1.13M | 0.01% | 1527 |
|
|
2025
Q3 | $46.8M | Buy |
1,755,665
+128,781
| +8% | +$3.33M | 0.01% | 1556 |
|
|
2025
Q2 | $37.4M | Buy |
1,626,884
+270,524
| +20% | +$6.71M | 0.01% | 1655 |
|
|
2025
Q1 | $39.3M | Buy |
1,356,360
+157,770
| +13% | +$5.04M | 0.01% | 1597 |
|
|
2024
Q4 | $44.5M | Buy |
1,198,590
+105,288
| +10% | +$4.81M | 0.01% | 1574 |
|
|
2024
Q3 | $53.1M | Buy |
1,093,302
+23,027
| +2% | +$1.01M | 0.01% | 1478 |
|
|
2024
Q2 | $42.8M | Sell |
1,070,275
-113,555
| -10% | -$4.71M | 0.01% | 1558 |
|
|
2024
Q1 | $52M | Sell |
1,183,830
-155,312
| -12% | -$8.02M | 0.01% | 1433 |
|
|
2023
Q4 | $82.8M | Sell |
1,339,142
-548,596
| -29% | -$28.8M | 0.02% | 1051 |
|
|
2023
Q3 | $86.8M | Sell |
1,887,738
-42,877
| -2% | -$2.34M | 0.03% | 928 |
|
|
2023
Q2 | $111M | Buy |
1,930,615
+13,044
| +0.7% | +$578K | 0.04% | 740 |
|
|
2023
Q1 | $71.9M | Buy |
1,917,571
+51,027
| +3% | +$1.67M | 0.02% | 1053 |
|
|
2022
Q4 | $52.3K | Buy |
1,866,544
+27,410
| +1% | +$796K | 0.02% | 1277 |
|
|
2022
Q3 | $51.7M | Buy |
1,839,134
+13,091
| +0.7% | +$427K | 0.02% | 1202 |
|
|
2022
Q2 | $63.5M | Buy |
1,826,043
+29,774
| +2% | +$1.06M | 0.02% | 1085 |
|
|
2022
Q1 | $64.5M | Buy |
1,796,269
+25,418
| +1% | +$721K | 0.02% | 1192 |
|
|
2021
Q4 | $41.2M | Buy |
1,770,851
+25,936
| +1% | +$530K | 0.01% | 1554 |
|
|
2021
Q3 | $33.2M | Buy |
1,744,915
+49,022
| +3% | +$960K | 0.01% | 1717 |
|
|
2021
Q2 | $34.2M | Buy |
1,695,893
+6,804
| +0.4% | +$128K | 0.01% | 1734 |
|
|
2021
Q1 | $31M | Sell |
1,689,089
-118,296
| -7% | -$2.2M | 0.01% | 1775 |
|
|
2020
Q4 | $36.3M | Sell |
1,807,385
-18,608
| -1% | -$362K | 0.01% | 1618 |
|
|
2020
Q3 | $34.2M | Sell |
1,825,993
-16,829
| -0.9% | -$339K | 0.01% | 1495 |
|
|
2020
Q2 | $41.4M | Sell |
1,842,822
-4,531
| -0.2% | -$83K | 0.02% | 1366 |
|
|
2020
Q1 | $27.4M | Buy |
1,847,353
+38,675
| +2% | +$673K | 0.01% | 1537 |
|
|
2019
Q4 | $34.9M | Buy |
1,808,678
+5,645
| +0.3% | +$108K | 0.01% | 1730 |
|
|
2019
Q3 | $35.8M | Sell |
1,803,033
-14,620
| -0.8% | -$305K | 0.01% | 1664 |
|
|
2019
Q2 | $38.4M | Sell |
1,817,653
-106,596
| -6% | -$2.23M | 0.01% | 1646 |
|
|
2019
Q1 | $39.3M | Buy |
1,924,249
+23,018
| +1% | +$516K | 0.02% | 1623 |
|
|
2018
Q4 | $37.8M | Sell |
1,901,231
-8,652
| -0.5% | -$171K | 0.02% | 1540 |
|
|
2018
Q3 | $36.7M | Buy |
1,909,883
+140,350
| +8% | +$2.5M | 0.01% | 1736 |
|
|
2018
Q2 | $27M | Buy |
1,769,533
+84,085
| +5% | +$1.47M | 0.01% | 1939 |
|
|
2018
Q1 | $31.6M | Buy |
1,685,448
+53,646
| +3% | +$1.01M | 0.01% | 1772 |
|
|
2017
Q4 | $31.4M | Buy |
1,631,802
+73,689
| +5% | +$1.38M | 0.01% | 1787 |
|
|
2017
Q3 | $27.8M | Buy |
1,558,113
+226,271
| +17% | +$3.72M | 0.01% | 1841 |
|
|
2017
Q2 | $23.8M | Buy |
1,331,842
+270,654
| +26% | +$4.29M | 0.01% | 1923 |
|
|
2017
Q1 | $15.4M | Buy |
1,061,188
+260,288
| +32% | +$4.09M | 0.01% | 2122 |
|
|
2016
Q4 | $14.8M | Buy |
800,900
+324,043
| +68% | +$6.3M | 0.01% | 2131 |
|
|
2016
Q3 | $9.05M | Buy |
476,857
+115,847
| +32% | +$2.1M | ﹤0.01% | 2293 |
|
|
2016
Q2 | $5.82M | Buy |
361,010
+103,556
| +40% | +$1.46M | ﹤0.01% | 2445 |
|
|
2016
Q1 | $3.09M | Buy |
257,454
+189,266
| +278% | +$2.23M | ﹤0.01% | 2648 |
|
|
2015
Q4 | $970K | Buy |
+68,188
| New | +$901K | ﹤0.01% | 2961 |
|
Other funds holding AMPH
VCM
BTW
EIP