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 |
2024-03-06 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 |
2024-02-01 Sale | 2024-02-02 7:37 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $53.1 | $26,548 | 80,333 (Direct) | View |
2024-01-10 Sale | 2024-01-11 4:37 pm | Amphastar Pharmaceuticals Inc. | AMPH | Luo Mary Z. Zhang Jack Y. COO,Chief Scientist & Chairman 10% Owner | 131,386 | $54.59 | $7,171,768 | 10,015,813 (Indirect Direct) | View |
2024-01-08 Sale | 2024-01-10 6:27 pm | Amphastar Pharmaceuticals Inc. | AMPH | Luo Mary Z. Zhang Jack Y. COO,Chief Scientist & Chairman 10% Owner | 219,800 | $58.23 | $12,798,708 | 10,147,199 (Indirect Direct) | View |
2024-01-02 Sale | 2024-01-03 7:25 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $61.37 | $30,683 | 80,833 (Direct) | View |
2023-12-01 Sale | 2023-12-05 6:25 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 7,830 | $59.03 | $462,195 | 217,088 (Indirect Direct) | View |
2023-12-01 Sale | 2023-12-04 8:49 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $57.9 | $28,952 | 81,333 (Direct) | View |
2023-11-17 Sale | 2023-11-20 5:23 pm | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 4,000 | $55.86 | $223,446 | 30,895 (Direct) | View |
2023-11-14 Sale | 2023-11-16 4:05 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 59,250 | $55.67 | $3,298,475 | 147,685 (Direct) | View |
2023-11-13 Sale | 2023-11-15 4:31 pm | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 5,000 | $52.5 | $262,500 | 35,895 (Direct) | View |
2023-11-14 Sale | 2023-11-15 4:30 pm | Amphastar Pharmaceuticals Inc. | AMPH | Deflin Gayle Director | 4,163 | $55.45 | $230,838 | 2,716 (Direct) | View |
2023-11-01 Sale | 2023-11-02 8:37 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $45.3 | $22,651 | 81,833 (Direct) | View |
2023-10-02 Sale | 2023-10-03 6:38 pm | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 500 | $45.78 | $22,890 | 82,333 (Direct) | View |
2023-09-06 Sale | 2023-09-08 4:08 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 60,743 | $51.75 | $3,143,195 | 211,988 (Direct) | View |
2023-08-28 Sale | 2023-08-29 6:54 pm | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP Corp Admin Center | 28,816 | $53.13 | $1,530,994 | 88,304 (Indirect Direct) | View |
2023-08-18 Sale | 2023-08-21 4:05 pm | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 2,000 | $52.5 | $105,006 | 40,895 (Direct) | View |
2023-08-15 Sale | 2023-08-16 8:23 pm | Amphastar Pharmaceuticals Inc. | AMPH | ZASLOFF MICHAEL A Director | 12,759 | $57.22 | $730,025 | 33,826 (Direct) | View |
2023-08-15 Sale | 2023-08-16 8:22 pm | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 4,163 | $57.39 | $238,911 | 42,895 (Direct) | View |
2023-06-15 Sale | 2023-06-20 4:05 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $51.79 | $258,947 | 229,081 (Indirect Direct) | View |
2023-06-15 Sale | 2023-06-20 4:01 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 36,868 | $50.85 | $1,874,790 | 120,656 (Direct) | View |
2023-06-13 Sale | 2023-06-14 5:36 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $48.24 | $241,200 | 210,872 (Indirect Direct) | View |
2023-06-02 Sale | 2023-06-05 5:06 pm | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 11,000 | $46.35 | $509,859 | 113,093 (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 |
2024-03-06 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 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 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 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 |
2023-12-01 Exercise | 2023-12-05 6:25 pm | N/A 2024-04-14 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 7,830 | $0 | 217,088 (Direct) | View |
2023-12-04 Exercise | 2023-12-05 6:25 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 3,514 | $16.19 | 217,088 (Direct) | View |
2023-12-01 Exercise | 2023-12-05 6:25 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 4,316 | $14.4 | 217,088 (Direct) | View |
2023-11-17 Gift | 2023-11-20 5:23 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 1,000 | $0 | 30,895 (Direct) | View |
2023-11-14 Exercise | 2023-11-16 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 21,250 | $20.23 | 147,685 (Direct) | View |
2023-11-14 Exercise | 2023-11-16 4:05 pm | N/A 2029-03-15 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 59,250 | $0 | 147,685 (Direct) | View |
2023-11-14 Exercise | 2023-11-16 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 38,000 | $13.03 | 147,685 (Direct) | View |
2023-09-06 Exercise | 2023-09-08 4:08 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 21,250 | $20.23 | 211,988 (Direct) | View |
2023-09-06 Exercise | 2023-09-08 4:08 pm | N/A 2028-03-15 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 56,500 | $0 | 211,988 (Direct) | View |
2023-09-06 Exercise | 2023-09-08 4:08 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 10,000 | $19.79 | 211,988 (Direct) | View |
2023-09-06 Exercise | 2023-09-08 4:08 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 25,250 | $13.03 | 211,988 (Direct) | View |
2023-08-28 Exercise | 2023-08-29 6:54 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP Corp Admin Center | 5,497 | $20.23 | 88,304 (Direct) | View |
2023-08-28 Exercise | 2023-08-29 6:54 pm | N/A 2028-06-14 | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP Corp Admin Center | 28,816 | $0 | 88,304 (Direct) | View |
2023-08-28 Exercise | 2023-08-29 6:54 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP Corp Admin Center | 20,000 | $13.03 | 88,304 (Direct) | View |
2023-08-28 Exercise | 2023-08-29 6:54 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP Corp Admin Center | 3,319 | $16.96 | 88,304 (Direct) | View |
2023-06-20 Exercise | 2023-06-21 5:05 pm | N/A 2026-03-17 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 9,651 | $0 | 241,796 (Direct) | View |
2023-06-20 Exercise | 2023-06-21 5:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 9,651 | $11.33 | 241,796 (Direct) | View |
2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A 2024-04-14 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 19,377 | $0 | 229,081 (Direct) | View |
2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 4,631 | $14.95 | 229,081 (Direct) | View |
2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 1,171 | $16.19 | 229,081 (Direct) | View |
2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 13,575 | $14.4 | 229,081 (Direct) | View |
2023-06-15 Exercise | 2023-06-20 4:01 pm | N/A 2028-03-15 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 36,868 | $0 | 120,656 (Direct) | View |
2023-06-15 Exercise | 2023-06-20 4:01 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 36,868 | $19.79 | 120,656 (Direct) | View |
2023-06-13 Exercise | 2023-06-14 5:36 pm | N/A 2024-04-14 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $0 | 210,872 (Direct) | View |
2023-06-13 Exercise | 2023-06-14 5:36 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $14.4 | 210,872 (Direct) | View |
2023-06-10 Tax Withholding | 2023-06-12 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Lee Howard Director | 375 | $45.67 | 145,280 (Direct) | View |
2023-06-05 Option Award | 2023-06-07 8:13 pm | N/A 2031-06-05 | Amphastar Pharmaceuticals Inc. | AMPH | PRINS RICHARD K Director | 9,732 | $0 | 54,074 (Direct) | View |
2023-06-05 Option Award | 2023-06-07 8:12 pm | N/A 2031-06-05 | Amphastar Pharmaceuticals Inc. | AMPH | Petersen Floyd F. Director | 9,732 | $0 | 89,849 (Direct) | View |
2023-06-05 Option Award | 2023-06-07 6:24 pm | N/A 2031-06-05 | Amphastar Pharmaceuticals Inc. | AMPH | Gerst Diane G. Director | 9,732 | $0 | 22,574 (Direct) | View |
2023-06-05 Option Award | 2023-06-07 5:20 pm | N/A 2031-06-05 | Amphastar Pharmaceuticals Inc. | AMPH | ZASLOFF MICHAEL A Director | 9,732 | $0 | 53,601 (Direct) | View |
2023-06-05 Option Award | 2023-06-07 5:19 pm | N/A 2031-06-05 | Amphastar Pharmaceuticals Inc. | AMPH | Lee Howard Director | 9,732 | $0 | 152,671 (Direct) | View |
2023-06-05 Option Award | 2023-06-07 5:18 pm | N/A 2031-06-05 | Amphastar Pharmaceuticals Inc. | AMPH | Deflin Gayle Director | 9,732 | $0 | 13,895 (Direct) | View |
2023-06-04 Tax Withholding | 2023-06-06 6:49 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Liawatidewi Yakob EVP Corp Admin Center | 378 | $46.7 | 72,128 (Direct) | View |
2023-06-02 Exercise | 2023-06-05 5:06 pm | N/A 2027-03-16 | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 11,000 | $0 | 113,093 (Direct) | View |
2023-06-02 Exercise | 2023-06-05 5:06 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | PETERS WILLIAM J CFO, EVP & Treasurer | 11,000 | $13.35 | 113,093 (Direct) | View |