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, Q4 2022
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Dec 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
- 213
- +10 vs. Q3 2022
- Shares held
- 29.1M
- −680.0K (−2.3%) vs. Q3 2022
- Total value
- $816.7M
- −$21.9M (−2.6%) vs. Q3 2022
- New holders
- 26
- 71 more added
- Sold out
- 16
- 83 more reduced
4 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: 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, Q4 2022
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Northern Trust Corp | 437,947 | $12.3M | 0.00% | +22,830+5.5% | Added |
| Renaissance Technologies LLC | 447,400 | $12.5M | 0.02% | +13,600+3.1% | Added |
| Fuller & Thaler Asset Management, Inc. | 500,065 | $14.0M | 0.09% | −215,116−30.1% | Reduced |
| Morgan Stanley | 603,048 | $16.9M | 0.00% | −107,336−15.1% | Reduced |
| Invesco Ltd. | 645,959 | $18.1M | 0.01% | +58,016+9.9% | Added |
| Geode Capital Management, LLC | 722,281 | $20.2M | 0.00% | +14,075+2.0% | Added |
| Price T Rowe Associates Inc | 789,170 | $22.1M | 0.00% | −19,561−2.4% | Reduced |
| State Street Corp | 1,358,510 | $38.1M | 0.00% | −175,283−11.4% | Reduced |
| Dimensional Fund Advisors LP | 1,866,544 | $52.3M | 0.02% | +27,410+1.5% | Added |
| Vanguard Group Inc | 2,621,807 | $73.5M | 0.00% | +15,645+0.6% | Added |
| Federated Hermes, Inc. | 3,284,217 | $92.0M | 0.25% | +19,038+0.6% | Added |
| BlackRock Inc. | 7,038,769 | $197.2M | 0.01% | −109,044−1.5% | Reduced |
| IFP Advisors, Inc | 18 | – | – | −75−80.6% | Reduced |
| Robeco Institutional Asset Management B.V. | 0 | $0 | 0.00% | −36,497−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −31,638−100.0% | Sold out |
| Jackson Creek Investment Advisors LLC | 0 | $0 | 0.00% | −27,577−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −25,632−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −18,259−100.0% | Sold out |
| Advisory Research Inc | 0 | $0 | 0.00% | −15,148−100.0% | Sold out |
| APG Asset Management N.V. | 0 | $0 | 0.00% | −13,400−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −12,368−100.0% | Sold out |
| Ensign Peak Advisors, Inc | 0 | $0 | 0.00% | −10,900−100.0% | Sold out |
| SG3 Management, LLC | 0 | $0 | 0.00% | −8,878−100.0% | Sold out |
| Hennion & Walsh Asset Management, Inc. | 0 | $0 | 0.00% | −7,286−100.0% | Sold out |
| FinTrust Capital Advisors, LLC | 0 | $0 | 0.00% | −7,000−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −2,683−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | 0 | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −175−100.0% | Sold out |
| Absolute Capital Management, LLC | 0 | $0 | 0.00% | −37−100.0% | Sold out |
| Bluestein R H & Co | – | – | – | – | Not filed |
| Hightower 6M Holding, LLC | – | – | – | – | Not filed |
| USA Financial Portformulas Corp | – | – | – | – | Not filed |
| Wipfli Financial Advisors LLC, | – | – | – | – | Not filed |