Amphastar Pharmaceuticals, Inc.
AMPH- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001297184
In the last 90 days, Amphastar Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 5 sales; 212 institutions reported holding it in 13F filings for Q2 2026, worth $572.1M in total; no superinvestor holds it.
13F holders, Q1 2022
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Mar 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 203
- +36 vs. Q4 2021
- Shares held
- 29.8M
- +671.0K (+2.3%) vs. Q4 2021
- Total value
- $1.07B
- +$392.5M (+57.8%) vs. Q4 2021
- New holders
- 55
- 69 more added
- Sold out
- 19
- 61 more reduced
1 institution that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMPH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 212 | $572.1M |
| Q1 2026 | 215 | $634.0M |
| Q4 2025 | 236 | $899.7M |
| Q3 2025 | 243 | $872.8M |
| Q2 2025 | 245 | $752.0M |
| Q1 2025 | 241 | $963.6M |
| Q4 2024 | 264 | $1.31B |
| Q3 2024 | 279 | $1.72B |
| Q2 2024 | 269 | $1.37B |
| Q1 2024 | 271 | $1.47B |
| Q4 2023 | 276 | $2.06B |
| Q3 2023 | 256 | $1.47B |
| Q2 2023 | 246 | $1.80B |
| Q1 2023 | 218 | $1.13B |
| Q4 2022 | 213 | $816.7M |
| Q3 2022 | 207 | $839.3M |
| Q2 2022 | 223 | $1.06B |
| Q1 2022 | 203 | $1.07B |
| Q4 2021 | 168 | $678.8M |
| Q3 2021 | 140 | $530.8M |
| Q2 2021 | 146 | $549.6M |
| Q1 2021 | 135 | $476.9M |
Institutions, Q1 2022
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sageworth Trust Co of South Dakota | 26 | $1.00K | 0.00% | −129−83.2% | Reduced |
| Aua Capital Management, LLC | 30 | $1.00K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 13 | $0 | 0.00% | −100−88.5% | Reduced |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −52,164−100.0% | Sold out |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −38,958−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −30,267−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −24,130−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −18,094−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −14,800−100.0% | Sold out |
| Norges Bank | 0 | $0 | 0.00% | −11,600−100.0% | Sold out |
| Diversified Trust Co | 0 | $0 | 0.00% | −11,018−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −10,935−100.0% | Sold out |
| Factorial Partners, LLC | 0 | $0 | 0.00% | −10,900−100.0% | Sold out |
| Denali Advisors LLC | 0 | $0 | 0.00% | −5,700−100.0% | Sold out |
| Eaton Vance Management | 0 | $0 | 0.00% | −2,034−100.0% | Sold out |
| Signet Financial Management, LLC | 0 | $0 | 0.00% | −1,926−100.0% | Sold out |
| First Quadrant L P | 0 | $0 | 0.00% | −1,562−100.0% | Sold out |
| Total Clarity Wealth Management, Inc. | 0 | $0 | 0.00% | −325−100.0% | Sold out |
| McDonald Partners LLC | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| Absolute Capital Management, LLC | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| Sageworth Trust Co | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| NEXT Financial Group, Inc | – | – | – | – | Not filed |