Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2024-12-12 Sale | 2024-12-16 5:22 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 15,000 | $44.85 | $672,815 | 250,711 (Indirect Direct) | View |
| 2024-12-09 Sale | 2024-12-11 8:28 pm | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 10,000 | $43.77 | $437,702 | 30,061 (Direct) | View |
| 2024-11-12 Sale | 2024-11-13 8:26 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 6,893 | $48.88 | $336,930 | 223,056 (Indirect Direct) | View |
| 2024-11-12 Sale | 2024-11-13 6:55 pm | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 5,000 | $48.8 | $243,986 | 34,650 (Direct) | View |
| 2024-11-06 Sale | 2024-11-08 7:02 pm | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP CORP ADMIN CENTER | 5,214 | $52.05 | $271,389 | 88,359 (Indirect Direct) | View |
| 2024-11-06 Sale | 2024-11-08 5:24 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 7,426 | $52.05 | $386,523 | 117,777 (Direct) | View |
| 2024-09-13 Sale | 2024-09-17 4:11 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 3,000 | $48.26 | $144,785 | 229,949 (Indirect Direct) | View |
| 2024-09-05 Sale | 2024-09-06 7:48 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 3,000 | $46.47 | $139,417 | 75,409 (Direct) | View |
| 2024-08-26 Sale | 2024-08-27 9:33 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 4,000 | $48.35 | $193,400 | 232,949 (Indirect Direct) | View |
| 2024-08-12 Sale | 2024-08-13 5:58 pm | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 17,101 | $43.07 | $736,550 | 63,971 (Direct) | View |
| 2024-07-31 Sale | 2024-08-02 4:32 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 10,282 | $44.23 | $454,773 | 99,046 (Direct) | View |
| 2024-06-27 Sale | 2024-06-28 4:26 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 3,596 | $40.93 | $147,169 | 94,103 (Direct) | View |
| 2024-06-10 Sale | 2024-06-11 6:32 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 3,000 | $41.4 | $124,200 | 78,409 (Direct) | View |
| 2024-06-03 Sale | 2024-06-05 6:54 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $42.65 | $21,326 | 88,273 (Direct) | View |
| 2024-05-01 Sale | 2024-05-02 4:56 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $41.67 | $20,837 | 78,833 (Direct) | View |
| 2024-04-01 Sale | 2024-04-02 9:31 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $43.43 | $21,714 | 79,333 (Direct) | View |
| 2024-03-06 Sale | 2024-03-08 4:52 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 18,136 | $46.48 | $842,883 | 109,300 (Direct) | View |
| 2024-03-05 Sale | 2024-03-06 5:57 pm | Amphastar Pharmaceuticals Inc. | AMPH | ZASLOFF MICHAEL A Director | 12,500 | $47.18 | $589,724 | 21,326 (Direct) | View |
| 2024-03-01 Sale | 2024-03-04 8:35 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $45.69 | $22,847 | 79,833 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2024-12-12 Exercise | 2024-12-16 5:22 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 15,000 | $11.33 | 250,711 (Direct) | View |
| 2024-12-12 Exercise | 2024-12-16 5:22 pm | N/A 2026-03-17 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 15,000 | $0 | 250,711 (Direct) | View |
| 2024-12-09 Gift | 2024-12-11 8:28 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 410 | $0 | 30,061 (Direct) | View |
| 2024-12-09 Exercise | 2024-12-11 8:28 pm | N/A 2029-06-07 | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 10,000 | $0 | 30,061 (Direct) | View |
| 2024-12-09 Exercise | 2024-12-11 8:28 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 10,000 | $19.52 | 30,061 (Direct) | View |
| 2024-11-12 Exercise | 2024-11-13 8:26 pm | N/A 2025-03-26 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 6,893 | $0 | 223,056 (Direct) | View |
| 2024-11-12 Exercise | 2024-11-13 8:26 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 6,893 | $14.95 | 223,056 (Direct) | View |
| 2024-11-12 Gift | 2024-11-13 6:55 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 1,000 | $0 | 34,650 (Direct) | View |
| 2024-11-12 Exercise | 2024-11-13 6:55 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 2,500 | $16.69 | 34,650 (Direct) | View |
| 2024-11-12 Exercise | 2024-11-13 6:55 pm | N/A 2026-06-07 | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 2,500 | $0 | 34,650 (Direct) | View |
| 2024-11-11 Gift | 2024-11-12 8:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & CHIEF SCIENTIFIC OFFICER 10% Owner | 125,000 | $0 | 10,440,989 (Direct) | View |
| 2024-11-06 Exercise | 2024-11-08 7:02 pm | N/A 2030-03-16 | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP CORP ADMIN CENTER | 5,214 | $0 | 88,359 (Direct) | View |
| 2024-11-06 Exercise | 2024-11-08 7:02 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP CORP ADMIN CENTER | 5,214 | $13.03 | 88,359 (Direct) | View |
| 2024-11-06 Exercise | 2024-11-08 5:24 pm | N/A 2030-03-16 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 7,426 | $0 | 117,777 (Direct) | View |
| 2024-11-06 Exercise | 2024-11-08 5:24 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 7,426 | $13.03 | 117,777 (Direct) | View |
| 2024-09-13 Exercise | 2024-09-17 4:11 pm | N/A 2025-03-26 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 3,000 | $0 | 229,949 (Direct) | View |
| 2024-09-13 Exercise | 2024-09-17 4:11 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 3,000 | $14.95 | 229,949 (Direct) | View |
| 2024-09-13 Exercise | 2024-09-16 7:09 pm | N/A 2025-03-16 | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & CHIEF SCIENTIFIC OFFICER 10% Owner | 100,000 | $0 | 10,981,466 (Direct) | View |
| 2024-09-13 Exercise | 2024-09-16 7:09 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & CHIEF SCIENTIFIC OFFICER 10% Owner | 100,000 | $14.69 | 10,981,466 (Direct) | View |
| 2024-08-26 Exercise | 2024-08-27 9:33 pm | N/A 2025-03-26 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 4,000 | $0 | 232,949 (Direct) | View |
| 2024-08-26 Exercise | 2024-08-27 9:33 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 4,000 | $14.95 | 232,949 (Direct) | View |
| 2024-08-12 Exercise | 2024-08-13 5:58 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 6,004 | $20.08 | 63,971 (Direct) | View |
| 2024-08-12 Exercise | 2024-08-13 5:58 pm | N/A 2027-06-12 | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 17,101 | $0 | 63,971 (Direct) | View |
| 2024-08-12 Exercise | 2024-08-13 5:58 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 7,182 | $19.52 | 63,971 (Direct) | View |
| 2024-08-12 Exercise | 2024-08-13 5:58 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 3,915 | $20.03 | 63,971 (Direct) | View |
| 2024-07-31 Exercise | 2024-08-02 4:32 pm | N/A 2029-03-15 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 10,282 | $0 | 99,046 (Direct) | View |
| 2024-07-31 Exercise | 2024-08-02 4:32 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 10,282 | $20.23 | 99,046 (Direct) | View |
| 2024-06-10 Exercise | 2024-06-11 6:35 pm | N/A 2025-03-16 | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & CHIEF SCIENTIFIC OFFICER 10% Owner | 100,000 | $0 | 10,981,466 (Direct) | View |
| 2024-06-10 Exercise | 2024-06-11 6:35 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & CHIEF SCIENTIFIC OFFICER 10% Owner | 100,000 | $14.69 | 10,981,466 (Direct) | View |
| 2024-06-05 Tax Withholding | 2024-06-05 8:10 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Lee Howard Director | 579 | $42.04 | 154,641 (Direct) | View |
| 2024-06-03 Option Award | 2024-06-05 8:10 pm | N/A 2034-06-03 | Amphastar Pharmaceuticals Inc. | AMPH | Lee Howard Director | 9,940 | $0 | 154,641 (Direct) | View |
| 2024-06-03 Option Award | 2024-06-05 7:03 pm | N/A 2034-06-03 | Amphastar Pharmaceuticals Inc. | AMPH | Gerst Diane G. Director | 9,940 | $0 | 25,498 (Direct) | View |
| 2024-06-03 Option Award | 2024-06-05 6:56 pm | N/A 2034-06-03 | Amphastar Pharmaceuticals Inc. | AMPH | Deflin Gayle Director | 9,940 | $0 | 12,656 (Direct) | View |
| 2024-06-03 Option Award | 2024-06-05 6:54 pm | N/A 2034-06-03 | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 9,940 | $0 | 88,273 (Direct) | View |
| 2024-06-04 Tax Withholding | 2024-06-05 6:00 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP CORP ADMIN CENTER | 272 | $42.22 | 77,397 (Direct) | View |
| 2024-06-03 Option Award | 2024-06-05 5:58 pm | N/A 2034-06-03 | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 9,940 | $0 | 40,835 (Direct) | View |
| 2024-06-03 Option Award | 2024-06-05 5:56 pm | N/A 2034-06-03 | Amphastar Pharmaceuticals Inc. | AMPH | ZASLOFF MICHAEL A Director | 9,940 | $0 | 31,266 (Direct) | View |
| 2024-05-19 Tax Withholding | 2024-05-21 6:26 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 387 | $43.48 | 97,268 (Direct) | View |
| 2024-03-15 Tax Withholding | 2024-03-19 6:55 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & Chief Scientific Officer 10% Owner | 634,199 | $43.05 | 10,490,989 (Direct) | View |
| 2024-03-15 Exercise | 2024-03-19 6:55 pm | N/A 2024-03-17 | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & Chief Scientific Officer 10% Owner | 1,032,976 | $0 | 10,490,989 (Direct) | View |
| 2024-03-15 Exercise | 2024-03-19 6:55 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & Chief Scientific Officer 10% Owner | 1,032,976 | $12.46 | 10,490,989 (Direct) | View |
| 2024-03-15 Tax Withholding | 2024-03-19 5:17 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP CORP ADMIN CENTER | 4,424 | $43.05 | 77,237 (Direct) | View |
| 2024-03-15 Tax Withholding | 2024-03-19 5:15 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 5,535 | $43.05 | 222,684 (Direct) | View |
| 2024-03-15 Tax Withholding | 2024-03-19 5:10 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 11,645 | $43.05 | 97,655 (Direct) | View |
| 2024-03-06 Tax Withholding | 2024-03-08 4:52 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 2,190 | $46.31 | 109,300 (Direct) | View |
| 2024-03-06 Exercise | 2024-03-08 4:52 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 8,826 | $11.33 | 109,300 (Direct) | View |
| 2024-03-06 Exercise | 2024-03-08 4:52 pm | N/A 2026-03-17 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 8,826 | $0 | 109,300 (Direct) | View |
| 2024-03-06 Tax Withholding | 2024-03-08 4:49 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP CORP ADMIN CENTER | 1,221 | $46.31 | 81,661 (Direct) | View |
| 2024-03-06 Tax Withholding | 2024-03-08 4:47 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 1,390 | $46.31 | 228,219 (Direct) | View |
| 2024-03-06 Tax Withholding | 2024-03-08 4:32 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & Chief Scientific Officer 10% Owner | 10,021 | $46.31 | 10,092,212 (Direct) | View |
| 2024-03-04 Option Award | 2024-03-06 6:29 pm | N/A 2034-03-04 | Amphastar Pharmaceuticals Inc. | AMPH | Zhang Jack Y. Luo Mary Z. CEO & CHIEF SCIENTIFIC OFFICER 10% Owner | 284,002 | $0 | 10,294,815 (Direct) | View |
| 2024-03-04 Option Award | 2024-03-06 5:54 pm | N/A 2034-03-04 | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP CORP ADMIN CENTER | 33,409 | $0 | 105,537 (Direct) | View |
| 2024-03-04 Option Award | 2024-03-06 5:51 pm | N/A 2034-03-04 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 38,899 | $0 | 255,987 (Direct) | View |
| 2024-03-04 Option Award | 2024-03-06 5:49 pm | N/A 2034-03-04 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & TREASURER | 60,395 | $0 | 161,755 (Direct) | View |