Company Page
Most Recent Insiders Activity
| Transaction Date | Company Name | Insider Name (Title) | Activity | Stock | Acquired or Disposed | Shares | Price range | Amount |
|---|---|---|---|---|---|---|---|---|
| 2024-11-12 | Amphastar Pharmaceuticals, Inc. | Zhou Rong
(SENIOR EVP, PRODUCTION CENTER) |
S | Common Stock | D | 6893 | $48.88 - $48.88 | $336,929 |
| 2024-11-12 | Amphastar Pharmaceuticals, Inc. | Zhou Rong
(SENIOR EVP, PRODUCTION CENTER) |
M | Common Stock | A | 6893 | $14.95 - $14.95 | $103,050 |
| 2024-11-12 | Amphastar Pharmaceuticals, Inc. | PRINS RICHARD K
(Director) |
S | Common Stock | D | 5000 | $48.80 - $48.80 | $243,985 |
| 2024-11-12 | Amphastar Pharmaceuticals, Inc. | PRINS RICHARD K
(Director) |
M | Common Stock | A | 2500 | $16.69 - $16.69 | $41,725 |
| 2024-11-12 | Amphastar Pharmaceuticals, Inc. | PRINS RICHARD K
(Director) |
G | Common Stock | D | 1000 | $0.00 - $0.00 | $0 |
| 2024-11-11 | Amphastar Pharmaceuticals, Inc. | Luo Mary Z.
(COO, Chief Scientist, Chairman) |
G | Common Stock | D | 250000 | $0.00 - $0.00 | $0 |
| 2024-11-06 | Amphastar Pharmaceuticals, Inc. | Liawatidewi Yakob
(EVP CORP ADMIN CENTER) |
S | Common Stock | D | 5214 | $52.05 - $52.05 | $271,388 |
| 2024-11-06 | Amphastar Pharmaceuticals, Inc. | Liawatidewi Yakob
(EVP CORP ADMIN CENTER) |
M | Common Stock | A | 5214 | $13.03 - $13.03 | $67,938 |
| 2024-11-06 | Amphastar Pharmaceuticals, Inc. | PETERS WILLIAM J
(CFO, EVP & TREASURER) |
S | Common Stock | D | 7426 | $52.05 - $52.05 | $386,523 |
| 2024-11-06 | Amphastar Pharmaceuticals, Inc. | PETERS WILLIAM J
(CFO, EVP & TREASURER) |
M | Common Stock | A | 7426 | $13.03 - $13.03 | $96,760 |
| 2024-09-13 | Amphastar Pharmaceuticals, Inc. | Luo Mary Z.
(COO, Chief Scientist, Chairman) |
M | Common Stock | A | 100000 | $14.69 - $14.69 | $1,469,000 |
| 2024-09-05 | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F.
(Director) |
S | Common Stock | D | 3000 | $46.47 - $46.47 | $139,417 |
| 2024-08-26 | Amphastar Pharmaceuticals, Inc. | Zhou Rong
(SENIOR EVP, PRODUCTION CENTER) |
S | Common Srock | D | 4000 | $48.35 - $48.35 | $193,400 |
| 2024-08-26 | Amphastar Pharmaceuticals, Inc. | Zhou Rong
(SENIOR EVP, PRODUCTION CENTER) |
M | Common Srock | A | 4000 | $14.95 - $14.95 | $59,800 |
| 2024-08-12 | Amphastar Pharmaceuticals, Inc. | PRINS RICHARD K
(Director) |
S | Common Stock | D | 17101 | $43.07 - $43.07 | $736,550 |
| 2024-08-12 | Amphastar Pharmaceuticals, Inc. | PRINS RICHARD K
(Director) |
M | Common Stock | A | 17101 | $19.52 - $20.08 | $339,169 |
| 2024-06-27 | Amphastar Pharmaceuticals, Inc. | PETERS WILLIAM J
(CFO, EVP & TREASURER) |
S | Common Stock | D | 3596 | $40.85 - $41.29 | $147,169 |
| 2024-06-10 | Amphastar Pharmaceuticals, Inc. | Luo Mary Z.
(COO, Chief Scientist, Chairman) |
M | Common Stock | A | 100000 | $14.69 - $14.69 | $1,469,000 |
| 2024-06-10 | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F.
(Director) |
S | Common Stock | D | 3000 | $41.40 - $41.40 | $124,200 |
| 2024-06-03 | Amphastar Pharmaceuticals, Inc. | Gerst Diane G.
(Director) |
A | Common Stock | A | 3076 | $0.00 - $0.00 | $0 |
| 2024-06-03 | Amphastar Pharmaceuticals, Inc. | Deflin Gayle
(Director) |
A | Common Stock | A | 3076 | $0.00 - $0.00 | $0 |
| 2024-06-03 | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F.
(Director) |
S | Common Stock | D | 500 | $42.65 - $42.65 | $21,325 |
| 2024-06-03 | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F.
(Director) |
A | Common Stock | A | 3076 | $0.00 - $0.00 | $0 |
| 2024-06-04 | Amphastar Pharmaceuticals, Inc. | Liawatidewi Yakob
(EVP CORP ADMIN CENTER) |
F | Common Stock | D | 272 | $42.22 - $42.22 | $11,483 |
| 2024-06-03 | Amphastar Pharmaceuticals, Inc. | PRINS RICHARD K
(Director) |
A | Common Stock | A | 3076 | $0.00 - $0.00 | $0 |
| 2024-06-03 | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A
(Director) |
A | Common Stock | A | 3076 | $0.00 - $0.00 | $0 |
Activity types
| A | Grant, award or other acquisition |
| C | Conversion of Derivative or Security |
| D | Disposition to the issuer of issuer equity securities |
| E | Expiration of short derivative position |
| F | Payment of exercise price or tax liability |
| G | Bona fide Gift |
| H | Expiration (or cancellation) of long derivative position with value received |
| I | Discretionary Transaction |
| J | Other acquisition or disposition |
| K | Transaction in equity swap or instrument with similar characteristics |
| L | Small Acquisition |
| M | Exercise or conversion of derivative security |
| O | Exercise of out-of-the-money derivative security |
| P | Open Market Purchase |
| S | Open Market Sale |
| U | Disposition pursuant to a tender of shares in a change of control transaction |
| V | Transaction Voluntarily Reported |
| X | Exercise of in-the-money or at-the-money derivative security |
| Z | Deposit into or withdrawal from voting trust |