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CITADEL ADVISORS LLC
> AMPH
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Amphastar Pharmaceuticals, Inc. | AMPH | 177,950 | 135,443 | 10,226,786,000 | 9,035,739,000 | $57,470.00 |
| 12/31/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 42,507 | -132,758 | 1,191,047,000 | 1,186,122,000 | $28,020.02 |
| 09/30/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 175,265 | 133,867 | 4,925,000 | 3,485,000 | $28.10 |
| 06/30/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 41,398 | -196,485 | 1,440,000 | -7,100,000 | $34.78 |
| 03/31/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 237,883 | 24,361 | 8,540,000 | 3,567,000 | $35.90 |
| 12/31/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 213,522 | 213,522 | 4,973,000 | 4,973,000 | $23.29 |
| 09/30/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 0 | -24,373 | 0 | -492,000 | |
| 06/30/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 24,373 | -15,056 | 492,000 | -230,000 | $20.19 |
| 03/31/2021 | Amphastar Pharmaceuticals, Inc. | AMPH | 39,429 | -30,709 | 722,000 | -688,000 | $18.31 |
| 12/31/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 70,138 | 16,164 | 1,410,000 | 398,000 | $20.10 |
| 09/30/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 53,974 | 16,234 | 1,012,000 | 164,000 | $18.75 |
| 06/30/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 37,740 | -48,475 | 848,000 | -432,000 | $22.47 |
| 03/31/2020 | Amphastar Pharmaceuticals, Inc. | AMPH | 86,215 | -45,838 | 1,280,000 | -1,338,000 | $14.85 |
| 09/30/2019 | Amphastar Pharmaceuticals, Inc. | AMPH | 132,053 | 74,767 | 2,618,000 | 1,409,000 | $19.83 |
| 06/30/2019 | Amphastar Pharmaceuticals, Inc. | AMPH | 57,286 | 43,126 | 1,209,000 | 920,000 | $21.10 |
| 03/31/2019 | Amphastar Pharmaceuticals, Inc. | AMPH | 14,160 | -17,854 | 289,000 | -348,000 | $20.41 |
| 12/31/2018 | Amphastar Pharmaceuticals, Inc. | AMPH | 32,014 | 32,014 | 637,000 | 637,000 | $19.90 |
| 06/30/2018 | Amphastar Pharmaceuticals, Inc. | AMPH | 0 | -34,180 | 0 | -641,000 | |
| 03/31/2018 | Amphastar Pharmaceuticals, Inc. | AMPH | 34,180 | 34,180 | 641,000 | 641,000 | $18.75 |
| 09/30/2017 | Amphastar Pharmaceuticals, Inc. | AMPH | 0 | -92,576 | 0 | -1,653,000 | |
| 06/30/2017 | Amphastar Pharmaceuticals, Inc. | AMPH | 92,576 | -262,990 | 1,653,000 | -3,503,000 | $17.86 |
| 03/31/2017 | Amphastar Pharmaceuticals, Inc. | AMPH | 355,566 | 337,079 | 5,156,000 | 4,815,000 | $14.50 |
| 12/31/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 18,487 | -47,633 | 341,000 | -913,000 | $18.45 |
| 09/30/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 66,120 | 66,120 | 1,254,000 | 1,254,000 | $18.97 |
| 06/30/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 215,231 | 202,862 | 3,469,000 | 3,321,000 | $16.12 |
| 03/31/2016 | Amphastar Pharmaceuticals, Inc. | AMPH | 12,369 | 2,033 | 148,000 | 1,000 | $11.97 |
| 12/31/2015 | Amphastar Pharmaceuticals, Inc. | AMPH | 10,336 | 10,336 | 147,000 | 147,000 | $14.22 |
| 09/30/2015 | Amphastar Pharmaceuticals, Inc. | AMPH | 0 | -73,670 | 0 | -1,295,000 | |
| 06/30/2015 | Amphastar Pharmaceuticals, Inc. | AMPH | 73,670 | 15,508 | 1,295,000 | 425,000 | $17.58 |
| 03/31/2015 | Amphastar Pharmaceuticals, Inc. | AMPH | 58,162 | 7,778 | 870,000 | 285,000 | $14.96 |
| 12/31/2014 | Amphastar Pharmaceuticals, Inc. | AMPH | 50,384 | 34,684 | 585,000 | 402,000 | $11.61 |
| 09/30/2014 | Amphastar Pharmaceuticals, Inc. | AMPH | 15,700 | 15,700 | 183,000 | 183,000 | $11.66 |
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