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BlackRock Inc.
> AMPH
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Amphastar Pharmaceuticals, Inc. | AMPH | 6,088,227 | -478,849 | 349,890,407,000 | 103,625,054,000 | $57,470.00 |
| 03/31/2023 | Amphastar Pharmaceuticals, Inc. | AMPH | 6,567,076 | -580,737 | 246,265,353,000 | 246,064,499,000 | $37,500.00 |
| 09/30/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,147,813 | 75,616 | 200,854,000 | -45,188,000 | $28.10 |
| 06/30/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,072,197 | -31,327 | 246,042,000 | -8,974,000 | $34.79 |
| 03/31/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,103,524 | -57,141 | 255,016,000 | 88,245,000 | $35.90 |
| 12/31/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,160,665 | -16,916 | 166,771,000 | 30,325,000 | $23.29 |
| 09/30/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,177,581 | -92,038 | 136,446,000 | -10,111,000 | $19.01 |
| 06/30/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,269,619 | -107,559 | 146,557,000 | 11,407,000 | $20.16 |
| 03/31/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,377,178 | 233,012 | 135,150,000 | -8,519,000 | $18.32 |
| 12/31/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 7,144,166 | 240,777 | 143,669,000 | 14,230,000 | $20.11 |
| 09/30/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 6,903,389 | 291,461 | 129,439,000 | -19,066,000 | $18.75 |
| 06/30/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 6,611,928 | 404,763 | 148,505,000 | 56,390,000 | $22.46 |
| 03/31/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 6,207,165 | 75,111 | 92,115,000 | -26,172,000 | $14.84 |
| 12/31/2019 | Amphastar Pharmaceuticals, Inc. | AMPH | 6,132,054 | 136,230 | 118,287,000 | -610,000 | $19.29 |
| 09/30/2019 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,995,824 | 68,683 | 118,897,000 | 118,771,876 | $19.83 |
| 06/30/2019 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,927,141 | 87,107 | 125,124 | -119,186,876 | $0.02 |
| 03/31/2019 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,840,034 | -86,844 | 119,312,000 | 1,366,000 | $20.43 |
| 12/31/2018 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,926,878 | -60,927 | 117,946,000 | 2,741,000 | $19.90 |
| 09/30/2018 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,987,805 | 267,622 | 115,205,000 | 27,914,000 | $19.24 |
| 06/30/2018 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,720,183 | 318,360 | 87,291,000 | -13,993,000 | $15.26 |
| 03/31/2018 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,401,823 | -112,942 | 101,284,000 | -4,822,000 | $18.75 |
| 12/31/2017 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,514,765 | 2,310 | 106,106,000 | 7,598,000 | $19.24 |
| 09/30/2017 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,512,455 | 117,483 | 98,508,000 | 2,153,000 | $17.87 |
| 06/30/2017 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,394,972 | -124,066 | 96,355,000 | 16,329,000 | $17.86 |
| 03/31/2017 | Amphastar Pharmaceuticals, Inc. | AMPH | 5,519,038 | 5,516,579 | 80,026,000 | 79,980,000 | $14.50 |
| 12/31/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 2,459 | -146 | 46,000 | -3,000 | $18.71 |
| 09/30/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 2,605 | 2,605 | 49,000 | 49,000 | $18.81 |
| 06/30/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 2,276 | -1,382 | 37,000 | -7,000 | $16.26 |
| 03/31/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 3,658 | 2,921 | 44,000 | 34,000 | $12.03 |
| 12/31/2015 | Amphastar Pharmaceuticals, Inc. | AMPH | 737 | 0 | 10,000 | 1,000 | $13.57 |
| 09/30/2015 | Amphastar Pharmaceuticals, Inc. | AMPH | 737 | 0 | 9,000 | -4,000 | $12.21 |
| 06/30/2015 | Amphastar Pharmaceuticals, Inc. | AMPH | 737 | 737 | 13,000 | 13,000 | $17.64 |
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