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, Q2 2021
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Jun 30, 2021. 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
- 146
- +11 vs. Q1 2021
- Shares held
- 27.3M
- +1.23M (+4.7%) vs. Q1 2021
- Total value
- $549.6M
- +$72.7M (+15.2%) vs. Q1 2021
- New holders
- 28
- 53 more added
- Sold out
- 17
- 44 more reduced
Compare with Q1 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, Q2 2021
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 7,269,619 | $146.6M | 0.00% | −107,559−1.5% | Reduced |
| Federated Hermes, Inc. | 3,341,501 | $67.4M | 0.13% | −99,866−2.9% | Reduced |
| Vanguard Group Inc | 2,459,731 | $49.6M | 0.00% | −93,367−3.7% | Reduced |
| Dimensional Fund Advisors LP | 1,695,893 | $34.2M | 0.01% | +6,804+0.4% | Added |
| State Street Corp | 1,439,931 | $29.0M | 0.00% | +34,978+2.5% | Added |
| Goldman Sachs Group Inc | 844,062 | $17.0M | 0.00% | +125,180+17.4% | Added |
| Invesco Ltd. | 788,414 | $15.9M | 0.00% | −145,232−15.6% | Reduced |
| Geode Capital Management, LLC | 689,084 | $13.9M | 0.00% | +28,671+4.3% | Added |
| Janus Henderson Group PLC | 555,036 | $11.2M | 0.00% | +555,036 | New |
| Northern Trust Corp | 433,603 | $8.74M | 0.00% | −26,807−5.8% | Reduced |
| Nuveen Asset Management, LLC | 419,137 | $8.45M | 0.00% | +243,749+139.0% | Added |
| Morgan Stanley | 414,225 | $8.35M | 0.00% | +72,625+21.3% | Added |
| Fuller & Thaler Asset Management, Inc. | 399,445 | $8.05M | 0.05% | +1,495+0.4% | Added |
| Silvercrest Asset Management Group LLC | 377,455 | $7.61M | 0.05% | +83,873+28.6% | Added |
| Wells Fargo & Company | 368,019 | $7.42M | 0.00% | +185,684+101.8% | Added |
| Bank of New York Mellon Corp | 355,548 | $7.17M | 0.00% | −23,135−6.1% | Reduced |
| Eagle Asset Management Inc | 304,474 | $6.14M | 0.03% | −5,985−1.9% | Reduced |
| Nordea Investment Management AB | 281,168 | $5.67M | 0.01% | +26,698+10.5% | Added |
| Principal Financial Group Inc | 253,684 | $5.11M | 0.00% | +2,280+0.9% | Added |
| Charles Schwab Investment Management Inc | 253,387 | $5.11M | 0.00% | +5,488+2.2% | Added |
| Renaissance Technologies LLC | 247,100 | $4.98M | 0.01% | +21,500+9.5% | Added |
| Ameriprise Financial Inc | 193,570 | $3.90M | 0.00% | −516−0.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 190,077 | $3.83M | 0.03% | +65,847+53.0% | Added |
| Assenagon Asset Management S.A. | 190,017 | $3.83M | 0.02% | +29,770+18.6% | Added |
| Frontier Capital Management Co LLC | 184,979 | $3.73M | 0.03% | +184,979 | New |
| JPMorgan Chase & Co | 181,995 | $3.67M | 0.00% | +137,084+305.2% | Added |
| Prudential Financial Inc | 181,665 | $3.66M | 0.01% | −57,672−24.1% | Reduced |
| Parametric Portfolio Associates LLC | 152,030 | $3.06M | 0.00% | +41,544+37.6% | Added |
| Arrowstreet Capital, Limited Partnership | 145,918 | $2.94M | 0.00% | +90,049+161.2% | Added |
| Acadian Asset Management LLC | 99,435 | $2.00M | 0.01% | +86,816+688.0% | Added |
| American Century Companies Inc | 93,288 | $1.88M | 0.00% | +93,288 | New |
| Rhumbline Advisers | 91,326 | $1.84M | 0.00% | +7,070+8.4% | Added |
| Swiss National Bank | 83,800 | $1.69M | 0.00% | −2,100−2.4% | Reduced |
| Legal & General Group Plc | 76,601 | $1.54M | 0.00% | −24,806−24.5% | Reduced |
| Deutsche Bank AG | 75,877 | $1.53M | 0.00% | +31,981+72.9% | Added |
| Public Sector Pension Investment Board | 74,952 | $1.51M | 0.01% | −24,902−24.9% | Reduced |
| Cornercap Investment Counsel Inc | 64,924 | $1.31M | 0.14% | +10,173+18.6% | Added |
| Norges Bank | 64,500 | $1.30M | 0.00% | +64,500 | New |
| Bank of America Corp | 62,936 | $1.27M | 0.00% | −3,678−5.5% | Reduced |
| Renaissance Group LLC | 61,827 | $1.25M | 0.05% | +61,827 | New |
| Exchange Traded Concepts, LLC | 57,851 | $1.17M | 0.04% | +5,517+10.5% | Added |
| Winton Group Ltd | 53,752 | $1.08M | 0.06% | +3,986+8.0% | Added |
| California State Teachers Retirement System | 51,101 | $1.03M | 0.00% | −3,844−7.0% | Reduced |
| State of Wisconsin Investment Board | 50,600 | $1.02M | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 49,417 | $997.0K | 0.01% | +30,000+154.5% | Added |
| Alliancebernstein L.P. | 47,670 | $961.0K | 0.00% | 00.0% | Unchanged |
| Summit Global Investments | 47,400 | $956.0K | 0.06% | −146−0.3% | Reduced |
| Barclays PLC | 45,686 | $921.0K | 0.00% | −29,431−39.2% | Reduced |
| UBS Asset Management Americas Inc | 43,811 | $883.2K | 0.00% | +2,724+6.6% | Added |
| Squarepoint Ops LLC | 40,760 | $822.0K | 0.01% | +40,760 | New |
| Credit Suisse AG | 39,074 | $787.0K | 0.00% | −2,427−5.8% | Reduced |
| Shell Asset Management Co | 38,622 | $779.0K | 0.02% | +2,090+5.7% | Added |
| Jump Financial, LLC | 37,700 | $760.0K | 0.07% | +37,700 | New |
| Tudor Investment Corp Et Al | 37,433 | $755.0K | 0.02% | −6,356−14.5% | Reduced |
| HRT Financial LP | 36,048 | $726.0K | 0.01% | +36,048 | New |
| D. E. Shaw & Co., Inc. | 35,699 | $720.0K | 0.00% | +17,921+100.8% | Added |
| Ziegler Capital Management, LLC | 33,747 | $680.0K | 0.02% | +33,747 | New |
| New York State Common Retirement Fund | 32,404 | $653.0K | 0.00% | +304+0.9% | Added |
| Nisa Investment Advisors, LLC | 32,264 | $650.0K | 0.00% | −2,700−7.7% | Reduced |
| UBS Group AG | 30,887 | $623.0K | 0.00% | −11,056−26.4% | Reduced |
| Great West Life Assurance Co | 30,450 | $614.0K | 0.00% | 00.0% | Unchanged |
| LSV Asset Management | 30,400 | $612.0K | 0.00% | +30,400 | New |
| Comerica Bank | 32,650 | $610.0K | 0.00% | −2,779−7.8% | Reduced |
| Thrivent Financial for Lutherans | 29,985 | $604.0K | 0.00% | −63−0.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 28,148 | $567.0K | 0.01% | −61−0.2% | Reduced |
| Allianz Asset Management GmbH | 27,791 | $561.0K | 0.00% | +30+0.1% | Added |
| Texas Permanent School Fund | 27,334 | $551.0K | 0.01% | +70.0% | Added |
| Voya Investment Management LLC | 25,907 | $522.0K | 0.00% | +6,515+33.6% | Added |
| State of Alaska, Department of Revenue | 25,378 | $511.0K | 0.01% | +613+2.5% | Added |
| Citigroup Inc | 25,202 | $508.0K | 0.00% | +12,515+98.6% | Added |
| Citadel Advisors LLC | 24,373 | $492.0K | 0.00% | −15,056−38.2% | Reduced |
| American International Group, Inc. | 24,003 | $484.0K | 0.00% | −273−1.1% | Reduced |
| Truist Financial Corp | 23,098 | $466.0K | 0.00% | +23,098 | New |
| BNP Paribas Arbitrage, SA | 22,649 | $456.6K | 0.00% | +7,640+50.9% | Added |
| State Board of Administration of Florida Retirement System | 22,334 | $450.0K | 0.00% | −28,232−55.8% | Reduced |
| Manufacturers Life Insurance Company, The | 21,695 | $437.0K | 0.00% | +62+0.3% | Added |
| HSBC Holdings PLC | 21,718 | $435.0K | 0.00% | −1,215−5.3% | Reduced |
| 6 Meridian | 20,838 | $420.0K | 0.03% | −306−1.4% | Reduced |
| Cubist Systematic Strategies, LLC | 20,363 | $411.0K | 0.00% | +5,357+35.7% | Added |
| New York State Teachers Retirement System | 20,327 | $410.0K | 0.00% | −100−0.5% | Reduced |
| Factorial Partners, LLC | 20,000 | $403.0K | 0.27% | +20,000 | New |
| AQR Capital Management LLC | 19,868 | $401.0K | 0.00% | −4,653−19.0% | Reduced |
| Victory Capital Management Inc | 19,573 | $395.0K | 0.00% | +327+1.7% | Added |
| ProShare Advisors LLC | 19,158 | $386.0K | 0.00% | +1,768+10.2% | Added |
| Amalgamated Bank | 18,011 | $363.0K | 0.00% | +18,011 | New |
| Two Sigma Advisers, LP | 17,400 | $351.0K | 0.00% | −21,200−54.9% | Reduced |
| Engineers Gate Manager LP | 17,184 | $346.0K | 0.02% | −4,986−22.5% | Reduced |
| Millennium Management LLC | 16,510 | $333.0K | 0.00% | −103,185−86.2% | Reduced |
| Louisiana State Employees Retirement System | 16,500 | $333.0K | 0.01% | −100−0.6% | Reduced |
| Globeflex Capital L P | 16,457 | $332.0K | 0.06% | +16,457 | New |
| Bank of Montreal | 15,868 | $331.0K | 0.00% | +4,299+37.2% | Added |
| QS Investors, LLC | 15,900 | $321.0K | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 14,860 | $300.0K | 0.00% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 14,900 | $299.0K | 0.00% | 00.0% | Unchanged |
| Occudo Quantitative Strategies LP | 13,910 | $280.0K | 0.04% | +13,910 | New |
| Public Employees Retirement Association of Colorado | 13,727 | $277.0K | 0.00% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 13,045 | $263.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 12,543 | $252.9K | 0.00% | +1,172+10.3% | Added |
| Bluestein R H & Co | 12,500 | $252.0K | 0.01% | 00.0% | Unchanged |
| Aigen Investment Management, LP | 12,390 | $250.0K | 0.04% | −3,687−22.9% | Reduced |