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 2024
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Dec 31, 2024. 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
- 264
- −13 vs. Q3 2024
- Shares held
- 35.2M
- −142.7K (−0.4%) vs. Q3 2024
- Total value
- $1.31B
- −$405.9M (−23.7%) vs. Q3 2024
- New holders
- 37
- 84 more added
- Sold out
- 50
- 100 more reduced
2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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 2024
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cynosure Management, LLC | 7,618 | $282.9K | 0.04% | +192+2.6% | Added |
| BCJ Capital Management, LLC | 7,638 | $283.6K | 0.02% | +1,021+15.4% | Added |
| Profund Advisors LLC | 7,920 | $294.1K | 0.01% | −36−0.5% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 7,939 | $294.8K | 0.01% | −93−1.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,006 | $297.3K | 0.00% | −109−1.3% | Reduced |
| Bank of Montreal | 8,215 | $305.0K | 0.00% | +361+4.6% | Added |
| Police & Firemen's Retirement System of New Jersey | 8,288 | $307.7K | 0.00% | +8,288 | New |
| Walleye Capital LLC | 8,666 | $321.8K | 0.00% | +8,666 | New |
| Cornerstone Investment Partners, LLC | 8,730 | $324.1K | 0.02% | +5+0.1% | Added |
| Oregon Public Employees Retirement Fund | 8,842 | $328.3K | 0.01% | −100−1.1% | Reduced |
| HSBC Holdings PLC | 8,991 | $329.8K | 0.00% | +1,707+23.4% | Added |
| Royce & Associates LP | 8,902 | $330.5K | 0.00% | −174−1.9% | Reduced |
| Point72 Asset Management, L.P. | 9,200 | $341.6K | 0.00% | −29,617−76.3% | Reduced |
| Sterling Capital Management LLC | 9,319 | $346.0K | 0.00% | 00.0% | Unchanged |
| Vestcor Inc | 9,383 | $348.0K | 0.01% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 9,694 | $359.9K | 0.00% | −427−4.2% | Reduced |
| Sanctuary Advisors, LLC | 9,983 | $363.1K | 0.00% | −257−2.5% | Reduced |
| Centiva Capital, LP | 9,803 | $364.0K | 0.01% | +3,338+51.6% | Added |
| Cim, LLC | 10,078 | $374.2K | 0.05% | +126+1.3% | Added |
| China Universal Asset Management Co., Ltd. | 10,195 | $378.5K | 0.04% | +833+8.9% | Added |
| State Board of Administration of Florida Retirement System | 10,913 | $405.2K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 10,998 | $408.0K | 0.00% | −278−2.5% | Reduced |
| D.A. Davidson & Co. | 11,244 | $417.5K | 0.00% | +11,244 | New |
| Arizona State Retirement System | 11,304 | $419.7K | 0.00% | +39+0.3% | Added |
| Invst, LLC | 11,346 | $421.3K | 0.05% | −3,044−21.2% | Reduced |
| Yousif Capital Management, LLC | 11,346 | $421.3K | 0.00% | −410−3.5% | Reduced |
| Teacher Retirement System of Texas | 11,548 | $429.0K | 0.00% | +1,736+17.7% | Added |
| Teachers Retirement System of the State of Kentucky | 11,691 | $434.0K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 11,805 | $438.3K | 0.00% | −1,101−8.5% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 12,096 | $449.0K | 0.00% | +181+1.5% | Added |
| Maryland State Retirement & Pension System | 12,630 | $469.0K | 0.01% | −191−1.5% | Reduced |
| EntryPoint Capital, LLC | 13,658 | $507.1K | 0.21% | +4,348+46.7% | Added |
| Allspring Global Investments Holdings, LLC | 14,064 | $511.4K | 0.00% | −10,199−42.0% | Reduced |
| ProShare Advisors LLC | 13,852 | $514.3K | 0.00% | +2,958+27.2% | Added |
| Advisory Research Inc | 13,853 | $514.4K | 0.09% | +43+0.3% | Added |
| Handelsbanken Fonder AB | 14,400 | $535.0K | 0.00% | −2,500−14.8% | Reduced |
| CI Private Wealth, LLC | 15,381 | $571.1K | 0.00% | +34+0.2% | Added |
| Advisor Group Holdings, Inc. | 16,200 | $601.5K | 0.00% | −19,263−54.3% | Reduced |
| Voya Investment Management LLC | 16,785 | $623.2K | 0.00% | −422−2.5% | Reduced |
| State of Tennessee, Treasury Department | 16,792 | $623.5K | 0.00% | −3,058−15.4% | Reduced |
| Illumine Investment Management, LLC | 17,049 | $633.0K | 0.52% | +17,049 | New |
| Gsa Capital Partners LLP | 17,434 | $647.0K | 0.05% | +11,185+179.0% | Added |
| Squarepoint Ops LLC | 17,664 | $655.9K | 0.00% | +11,929+208.0% | Added |
| Wellington Management Group LLP | 17,784 | $660.3K | 0.00% | −1,939−9.8% | Reduced |
| Jain Global LLC | 17,974 | $667.4K | 0.02% | +17,974 | New |
| Louisiana State Employees Retirement System | 18,100 | $672.1K | 0.01% | −300−1.6% | Reduced |
| Legato Capital Management LLC | 18,461 | $685.5K | 0.09% | 00.0% | Unchanged |
| Shaker Investments LLC | 18,520 | $687.6K | 0.29% | −16−0.1% | Reduced |
| Fox Run Management, L.L.C. | 18,526 | $687.9K | 0.12% | +18,526 | New |
| Segall Bryant & Hamill, LLC | 18,881 | $701.1K | 0.01% | −87−0.5% | Reduced |
| Dynamic Technology Lab Private Ltd | 19,150 | $711.0K | 0.11% | +14,468+309.0% | Added |
| Amundi | 19,583 | $717.3K | 0.00% | +12,899+193.0% | Added |
| LPL Financial LLC | 20,366 | $756.2K | 0.00% | +1,510+8.0% | Added |
| Corebridge Financial, Inc. | 20,449 | $759.3K | 0.00% | −1,613−7.3% | Reduced |
| DekaBank Deutsche Girozentrale | 20,848 | $772.0K | 0.00% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 20,959 | $778.2K | 0.01% | −431−2.0% | Reduced |
| Manufacturers Life Insurance Company, The | 21,257 | $789.3K | 0.00% | −610−2.8% | Reduced |
| State of Alaska, Department of Revenue | 21,325 | $791.0K | 0.01% | −342−1.6% | Reduced |
| FMR LLC | 21,345 | $792.5K | 0.00% | −12,990−37.8% | Reduced |
| Redwood Investments, LLC | 21,459 | $796.8K | 0.21% | −27−0.1% | Reduced |
| Man Group plc | 21,825 | $810.4K | 0.00% | +21,825 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 21,876 | $812.3K | 0.00% | +792+3.8% | Added |
| MetLife Investment Management | 23,452 | $870.8K | 0.00% | +845+3.7% | Added |
| Wells Fargo & Company | 23,552 | $874.5K | 0.00% | −19,136−44.8% | Reduced |
| New York State Teachers Retirement System | 23,866 | $886.0K | 0.00% | 00.0% | Unchanged |
| Polaris Capital Management, LLC | 24,500 | $909.7K | 0.04% | +24,500 | New |
| Glenmede Trust Co NA | 24,743 | $918.7K | 0.00% | −13,141−34.7% | Reduced |
| Advisor OS, LLC | 25,405 | $943.3K | 0.11% | −628−2.4% | Reduced |
| Quantbot Technologies LP | 25,454 | $945.1K | 0.03% | +25,454 | New |
| State of Wisconsin Investment Board | 25,649 | $952.3K | 0.00% | −33,582−56.7% | Reduced |
| Chatham Capital Group, Inc. | 27,295 | $1.01M | 0.17% | −395−1.4% | Reduced |
| Franklin Resources Inc | 27,405 | $1.02M | 0.00% | −1,060−3.7% | Reduced |
| Arkadios Wealth Advisors | 27,964 | $1.04M | 0.06% | +1,379+5.2% | Added |
| SEI Investments Co | 28,125 | $1.04M | 0.00% | −13,103−31.8% | Reduced |
| Gotham Asset Management, LLC | 28,448 | $1.06M | 0.01% | −7,290−20.4% | Reduced |
| Royal Bank of Canada | 28,632 | $1.06M | 0.00% | +2,118+8.0% | Added |
| Thrivent Financial for Lutherans | 28,988 | $1.08M | 0.00% | −827−2.8% | Reduced |
| Engineers Gate Manager LP | 29,108 | $1.08M | 0.02% | +2,658+10.0% | Added |
| AQR Capital Management LLC | 29,471 | $1.09M | 0.00% | −12,196−29.3% | Reduced |
| Susquehanna International Group, LLP | 31,266 | $1.16M | 0.00% | +16,483+111.5% | Added |
| Envestnet Asset Management Inc | 32,203 | $1.20M | 0.00% | −2,463−7.1% | Reduced |
| Deutsche Bank AG | 34,082 | $1.27M | 0.00% | +10,839+46.6% | Added |
| Great West Life Assurance Co | 35,045 | $1.30M | 0.00% | −1,902−5.1% | Reduced |
| California State Teachers Retirement System | 36,369 | $1.35M | 0.00% | −595−1.6% | Reduced |
| LSV Asset Management | 36,400 | $1.35M | 0.00% | −44,000−54.7% | Reduced |
| BNP Paribas Arbitrage, SA | 36,964 | $1.37M | 0.00% | −57,502−60.9% | Reduced |
| Martingale Asset Management L P | 40,205 | $1.49M | 0.04% | −60−0.1% | Reduced |
| Assetmark, Inc | 41,921 | $1.56M | 0.00% | −1,985−4.5% | Reduced |
| Intech Investment Management LLC | 42,156 | $1.57M | 0.02% | +29,167+224.6% | Added |
| Schonfeld Strategic Advisors LLC | 42,614 | $1.58M | 0.01% | +33,007+343.6% | Added |
| Aristeia Capital LLC | 43,235 | $1.61M | 0.06% | +43,235 | New |
| Prudential Financial Inc | 38,694 | $1.73M | 0.00% | −630−1.6% | Reduced |
| Twinbeech Capital LP | 46,797 | $1.74M | 0.03% | +46,797 | New |
| Campbell & CO Investment Adviser LLC | 47,566 | $1.77M | 0.14% | +47,566 | New |
| Alliancebernstein L.P. | 50,630 | $1.88M | 0.00% | +889+1.8% | Added |
| Aurora Investment Counsel | 54,705 | $2.03M | 1.11% | +70.0% | Added |
| Citigroup Inc | 63,171 | $2.35M | 0.00% | +5,359+9.3% | Added |
| Victory Capital Management Inc | 63,387 | $2.35M | 0.00% | −155,144−71.0% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 67,367 | $2.50M | 0.01% | −16,306−19.5% | Reduced |
| Bridge City Capital, LLC | 70,095 | $2.60M | 0.69% | −984−1.4% | Reduced |