Amphastar Pharmaceuticals, Inc. (AMPH)
Largest Insider Buys in Sector
AMPH Stock Price History Chart
AMPH Stock Performance
About Amphastar Pharmaceuticals, Inc.
Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. The company operates through two segments, Finished Pharmaceutical Products and API. It offers Primatene Mist, an over-the-counter epinephrine inhalation product for the temporary relief of mild symptoms of intermittent asthma; Enoxaparin, a low molecular weight heparin to prevent and treat deep vein thrombosis; Naloxone for …
Insider Activity of Amphastar Pharmaceuticals, Inc.
Over the last 12 months, insiders at Amphastar Pharmaceuticals, Inc. have bought $0 and sold $27.99M worth of Amphastar Pharmaceuticals, Inc. stock.
On average, over the past 5 years, insiders at Amphastar Pharmaceuticals, Inc. have bought $40,520 and sold $15.22M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 2,000 shares for transaction amount of $40,520 was made by Maris David (director) on 2020‑08‑14.
List of Insider Buy and Sell Transactions, Amphastar Pharmaceuticals, Inc.
| 2024-09-13 | Sale | SENIOR EVP, PRODUCTION CENTER | 3,000 0.0062% | $48.26 | $144,785 | +2.27% | ||
| 2024-09-05 | Sale | director | 3,000 0.0063% | $46.47 | $139,417 | +6.94% | ||
| 2024-08-26 | Sale | SENIOR EVP, PRODUCTION CENTER | 4,000 0.0083% | $48.35 | $193,400 | +0.79% | ||
| 2024-08-12 | Sale | director | 17,101 0.0347% | $43.07 | $736,550 | +11.79% | ||
| 2024-07-31 | Sale | CFO, EVP & TREASURER | 10,282 0.0214% | $44.23 | $454,773 | 0.00% | ||
| 2024-06-27 | Sale | CFO, EVP & TREASURER | 3,596 0.0075% | $40.93 | $147,169 | 0.00% | ||
| 2024-06-10 | Sale | director | 3,000 0.0061% | $41.40 | $124,200 | +11.70% | ||
| 2024-06-03 | Sale | director | 500 0.001% | $42.65 | $21,326 | +9.63% | ||
| 2024-05-01 | Sale | director | 500 0.001% | $41.67 | $20,837 | +3.02% | ||
| 2024-04-01 | Sale | director | 500 0.001% | $43.43 | $21,714 | -2.26% | ||
| 2024-03-06 | Sale | CFO, EVP & TREASURER | 18,136 0.0379% | $46.48 | $842,883 | -7.22% | ||
| 2024-03-05 | Sale | director | 12,500 0.026% | $47.18 | $589,724 | -9.20% | ||
| 2024-03-01 | Sale | director | 500 0.001% | $45.69 | $22,847 | -6.77% | ||
| 2024-02-01 | Sale | director | 500 0.001% | $53.10 | $26,548 | -18.49% | ||
| 2024-01-10 | Sale | COO,Chief Scientist & Chairman | 131,386 0.2735% | $54.59 | $7.17M | -18.83% | ||
| 2024-01-09 | Sale | COO,Chief Scientist & Chairman | 86,156 0.1806% | $57.14 | $4.92M | -21.80% | ||
| 2024-01-08 | Sale | COO,Chief Scientist & Chairman | 133,644 0.2764% | $58.93 | $7.88M | -25.14% | ||
| 2024-01-02 | Sale | director | 500 0.001% | $61.37 | $30,683 | -28.03% | ||
| 2023-12-04 | Sale | Senior EVP, Production Center | 3,514 0.0073% | $59.58 | $209,364 | -22.86% | ||
| 2023-12-01 | Sale | Senior EVP, Production Center | 4,316 0.0091% | $58.58 | $252,831 | -20.12% |
Insider Historical Profitability
| Petersen Floyd F. | director | 75409 0.1549% | $46.57 | 1 | 59 | +27.09% |
| PRINS RICHARD K | director | 33971 0.0698% | $46.57 | 2 | 40 | +28.12% |
| ZASLOFF MICHAEL A | director | 21326 0.0438% | $46.57 | 1 | 18 | +29.92% |
| Zhang Jack Y. | CEO & Chief Scientific Officer | 6827679 14.0268% | $46.57 | 2 | 35 | +24.35% |
| Koo Richard | director | 253270 0.5203% | $46.57 | 1 | 3 | +27.09% |
Institutional Investor Ownership
| BlackRock | $266.93M | 12.43 | 6.08M | +0.69% | +$1.84M | 0.01 | |
| The Vanguard Group | $120.05M | 5.59 | 2.73M | -2.9% | -$3.58M | <0.01 | |
| Federated Hermes | $91.21M | 4.25 | 2.08M | -36.53% | -$52.5M | 0.21 | |
| Neuberger Berman | $72.88M | 3.39 | 1.66M | -1.96% | -$1.46M | 0.06 | |
| State Street | $66.49M | 3.1 | 1.51M | +2.93% | +$1.89M | <0.01 |