| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Mar 15, 2024 | Option Exercise | $43.05 | 1,219 | 52,478 | 122,332 | Mar 19, 2024, 05:15 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Mar 16, 2024 | Option Exercise | $43.05 | 2,355 | 101,383 | 119,977 | Mar 19, 2024, 05:15 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Mar 17, 2024 | Option Exercise | $43.05 | 1,961 | 84,421 | 118,016 | Mar 19, 2024, 05:15 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Mar 06, 2024 | Option Exercise | $46.31 | 1,390 | 64,371 | 123,551 | Mar 08, 2024, 04:47 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | Senior EVP, Production Center | Dec 01, 2023 | Option Exercise | $36.49 | 8,632 | 314,982 | 116,736 | Dec 05, 2023, 06:25 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | Senior EVP, Production Center | Dec 04, 2023 | Option Exercise | $37.89 | 7,028 | 266,256 | 115,934 | Dec 05, 2023, 06:25 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 20, 2023 | Option Exercise | $11.33 | 9,651 | 109,346 | 112,341 | Jun 21, 2023, 05:05 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 15, 2023 | Option Exercise | $22.26 | 24,377 | 542,618 | 102,690 | Jun 20, 2023, 04:05 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 13, 2023 | Option Exercise | $31.32 | 10,000 | 313,200 | 93,313 | Jun 14, 2023, 05:36 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | May 18, 2023 | Option Exercise | $29.30 | 20,000 | 586,050 | 97,598 | May 19, 2023, 06:36 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 16, 2023 | Option Exercise | $37.60 | 2,283 | 85,841 | 89,499 | Mar 20, 2023, 08:04 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 17, 2023 | Option Exercise | $36.29 | 1,901 | 68,987 | 87,598 | Mar 20, 2023, 08:04 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 15, 2023 | Option Exercise | $36.84 | 2,057 | 75,780 | 91,782 | Mar 17, 2023, 07:04 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 16, 2022 | Option Exercise | $34.22 | 2,283 | 78,124 | 80,030 | Mar 18, 2022, 07:01 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 17, 2022 | Option Exercise | $34.18 | 2,447 | 83,638 | 77,583 | Mar 18, 2022, 07:01 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 15, 2022 | Option Exercise | $34.74 | 1,652 | 57,390 | 82,313 | Mar 17, 2022, 05:07 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Feb 08, 2022 | Option Exercise | $18.85 | 14,000 | 263,900 | 83,553 | Feb 09, 2022, 09:07 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jan 10, 2022 | Option Exercise | $19.57 | 34,928 | 683,704 | 97,481 | Jan 11, 2022, 08:28 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Nov 11, 2021 | Sale | $16.07 | 15,626 | 251,188 | 90,934 | Nov 12, 2021, 07:44 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Aug 02, 2021 | Option Exercise | $16.97 | 15,123 | 256,614 | 92,244 | Aug 04, 2021, 04:05 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jul 26, 2021 | Option Exercise | $15.68 | 12,000 | 188,100 | 92,244 | Jul 27, 2021, 06:46 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jul 20, 2021 | Option Exercise | $15.52 | 10,374 | 161,056 | 91,431 | Jul 22, 2021, 04:13 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 09, 2021 | Sale | $19.58 | 4,732 | 92,653 | 86,244 | Jun 10, 2021, 04:45 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 08, 2021 | Sale | $16.78 | 16,360 | 274,578 | 99,156 | Jun 10, 2021, 04:45 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | May 13, 2021 | Sale | $16.90 | 1,400 | 23,667 | 96,965 | May 17, 2021, 07:38 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | May 14, 2021 | Sale | $17.58 | 28,539 | 501,702 | 107,385 | May 17, 2021, 07:38 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 16, 2021 | Option Exercise | $18.44 | 3,303 | 60,907 | 74,281 | Mar 18, 2021, 08:52 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 15, 2021 | Option Exercise | $19.15 | 1,652 | 31,636 | 77,584 | Mar 17, 2021, 08:00 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 04, 2020 | Sale | $15.48 | 18,724 | 289,932 | 89,042 | Jun 05, 2020, 04:15 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 03, 2020 | Option Exercise | $15.43 | 24,245 | 374,123 | 93,287 | Jun 05, 2020, 04:15 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 16, 2020 | Option Exercise | $13.03 | 1,020 | 13,291 | 55,483 | Mar 18, 2020, 05:34 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 17, 2020 | Option Exercise | $14.50 | 992 | 14,384 | 80,891 | Mar 18, 2020, 05:34 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 15, 2020 | Option Exercise | $14.19 | 1,653 | 23,456 | 56,503 | Mar 17, 2020, 08:11 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 14, 2019 | Option Exercise | $19.82 | 204 | 4,043 | 58,156 | Jun 17, 2019, 07:00 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | May 06, 2019 | Option Exercise | $21.51 | 19,200 | 412,992 | 66,707 | May 07, 2019, 08:25 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 26, 2019 | Option Exercise | $20.54 | 814 | 16,720 | 57,107 | Mar 28, 2019, 04:58 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 15, 2019 | Option Exercise | $20.23 | 1,179 | 23,851 | 60,984 | Mar 18, 2019, 08:52 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 16, 2019 | Option Exercise | $20.23 | 1,553 | 31,417 | 59,431 | Mar 18, 2019, 08:52 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 17, 2019 | Option Exercise | $20.23 | 1,510 | 30,547 | 57,921 | Mar 18, 2019, 08:52 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 01, 2019 | Option Exercise | $22.63 | 6,400 | 144,832 | 55,230 | Mar 04, 2019, 08:44 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Feb 05, 2019 | Option Exercise | $21.83 | 7,489 | 163,479 | 56,319 | Feb 07, 2019, 04:05 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Dec 03, 2018 | Sale | $22.00 | 1,089 | 23,958 | 53,119 | Dec 06, 2018, 03:56 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Nov 08, 2018 | Sale | $20.00 | 1,084 | 21,680 | 54,392 | Nov 13, 2018, 05:10 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Nov 09, 2018 | Sale | $21.00 | 1,089 | 22,869 | 53,303 | Nov 13, 2018, 05:10 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 15, 2018 | Option Exercise | $16.88 | 134 | 2,262 | 55,476 | Jun 18, 2018, 04:59 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 26, 2018 | Option Exercise | $18.61 | 535 | 9,956 | 54,434 | Mar 28, 2018, 05:23 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 16, 2018 | Option Exercise | $19.91 | 1,128 | 22,458 | 55,938 | Mar 20, 2018, 08:06 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 17, 2018 | Option Exercise | $19.91 | 969 | 19,293 | 54,969 | Mar 20, 2018, 08:06 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Jun 15, 2017 | Option Exercise | $16.18 | 146 | 2,362 | 48,096 | Jun 16, 2017, 07:14 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 26, 2017 | Option Exercise | $13.76 | 568 | 7,816 | 46,972 | Mar 28, 2017, 08:15 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Mar 17, 2017 | Option Exercise | $13.75 | 1,248 | 17,160 | 47,540 | Mar 20, 2017, 09:04 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production Center | Dec 05, 2016 | Sale | $20.70 | 61 | 1,262 | 36,991 | Dec 07, 2016, 07:00 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production | Mar 26, 2016 | Option Exercise | $11.96 | 568 | 6,793 | 37,137 | Mar 29, 2016, 07:36 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production | Dec 16, 2015 | Sale | $14.29 | 772 | 11,032 | 25,460 | Dec 17, 2015, 07:30 PM | |
| AMPH | Amphastar Pharmaceuticals, Inc. | Zhou Rong | EVP, Production | Jun 17, 2015 | Sale | $16.48 | 1,000 | 16,480 | 26,232 | Jun 19, 2015, 04:30 PM |
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