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 |
|---|---|---|---|---|---|
| Alliancebernstein L.P. | 47,670 | $961.0K | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 49,417 | $997.0K | 0.01% | +30,000+154.5% | Added |
| State of Wisconsin Investment Board | 50,600 | $1.02M | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 51,101 | $1.03M | 0.00% | −3,844−7.0% | Reduced |
| Winton Group Ltd | 53,752 | $1.08M | 0.06% | +3,986+8.0% | Added |
| Exchange Traded Concepts, LLC | 57,851 | $1.17M | 0.04% | +5,517+10.5% | Added |
| Renaissance Group LLC | 61,827 | $1.25M | 0.05% | +61,827 | New |
| Bank of America Corp | 62,936 | $1.27M | 0.00% | −3,678−5.5% | Reduced |
| Norges Bank | 64,500 | $1.30M | 0.00% | +64,500 | New |
| Cornercap Investment Counsel Inc | 64,924 | $1.31M | 0.14% | +10,173+18.6% | Added |
| Public Sector Pension Investment Board | 74,952 | $1.51M | 0.01% | −24,902−24.9% | Reduced |
| Deutsche Bank AG | 75,877 | $1.53M | 0.00% | +31,981+72.9% | Added |
| Legal & General Group Plc | 76,601 | $1.54M | 0.00% | −24,806−24.5% | Reduced |
| Swiss National Bank | 83,800 | $1.69M | 0.00% | −2,100−2.4% | Reduced |
| Rhumbline Advisers | 91,326 | $1.84M | 0.00% | +7,070+8.4% | Added |
| American Century Companies Inc | 93,288 | $1.88M | 0.00% | +93,288 | New |
| Acadian Asset Management LLC | 99,435 | $2.00M | 0.01% | +86,816+688.0% | Added |
| Arrowstreet Capital, Limited Partnership | 145,918 | $2.94M | 0.00% | +90,049+161.2% | Added |
| Parametric Portfolio Associates LLC | 152,030 | $3.06M | 0.00% | +41,544+37.6% | Added |
| Prudential Financial Inc | 181,665 | $3.66M | 0.01% | −57,672−24.1% | Reduced |
| JPMorgan Chase & Co | 181,995 | $3.67M | 0.00% | +137,084+305.2% | Added |
| Frontier Capital Management Co LLC | 184,979 | $3.73M | 0.03% | +184,979 | New |
| Assenagon Asset Management S.A. | 190,017 | $3.83M | 0.02% | +29,770+18.6% | Added |
| Jacobs Levy Equity Management, Inc | 190,077 | $3.83M | 0.03% | +65,847+53.0% | Added |
| Ameriprise Financial Inc | 193,570 | $3.90M | 0.00% | −516−0.3% | Reduced |
| Renaissance Technologies LLC | 247,100 | $4.98M | 0.01% | +21,500+9.5% | Added |
| Charles Schwab Investment Management Inc | 253,387 | $5.11M | 0.00% | +5,488+2.2% | Added |
| Principal Financial Group Inc | 253,684 | $5.11M | 0.00% | +2,280+0.9% | Added |
| Nordea Investment Management AB | 281,168 | $5.67M | 0.01% | +26,698+10.5% | Added |
| Eagle Asset Management Inc | 304,474 | $6.14M | 0.03% | −5,985−1.9% | Reduced |
| Bank of New York Mellon Corp | 355,548 | $7.17M | 0.00% | −23,135−6.1% | Reduced |
| Wells Fargo & Company | 368,019 | $7.42M | 0.00% | +185,684+101.8% | Added |
| Silvercrest Asset Management Group LLC | 377,455 | $7.61M | 0.05% | +83,873+28.6% | Added |
| Fuller & Thaler Asset Management, Inc. | 399,445 | $8.05M | 0.05% | +1,495+0.4% | Added |
| Morgan Stanley | 414,225 | $8.35M | 0.00% | +72,625+21.3% | Added |
| Nuveen Asset Management, LLC | 419,137 | $8.45M | 0.00% | +243,749+139.0% | Added |
| Northern Trust Corp | 433,603 | $8.74M | 0.00% | −26,807−5.8% | Reduced |
| Janus Henderson Group PLC | 555,036 | $11.2M | 0.00% | +555,036 | New |
| Geode Capital Management, LLC | 689,084 | $13.9M | 0.00% | +28,671+4.3% | Added |
| Invesco Ltd. | 788,414 | $15.9M | 0.00% | −145,232−15.6% | Reduced |
| Goldman Sachs Group Inc | 844,062 | $17.0M | 0.00% | +125,180+17.4% | Added |
| State Street Corp | 1,439,931 | $29.0M | 0.00% | +34,978+2.5% | Added |
| Dimensional Fund Advisors LP | 1,695,893 | $34.2M | 0.01% | +6,804+0.4% | Added |
| Vanguard Group Inc | 2,459,731 | $49.6M | 0.00% | −93,367−3.7% | Reduced |
| Federated Hermes, Inc. | 3,341,501 | $67.4M | 0.13% | −99,866−2.9% | Reduced |
| BlackRock Inc. | 7,269,619 | $146.6M | 0.00% | −107,559−1.5% | Reduced |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −127,622−100.0% | Sold out |
| Mackay Shields LLC | 0 | $0 | 0.00% | −101,200−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −88,375−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −74,100−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −36,800−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −34,425−100.0% | Sold out |
| Pictet Asset Management Ltd | 0 | $0 | 0.00% | −33,839−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −31,416−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −15,543−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −14,574−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −12,503−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −11,961−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −5,487−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −2,900−100.0% | Sold out |
| Tarbox Family Office, Inc. | 0 | $0 | 0.00% | −123−100.0% | Sold out |
| Wealthcare Advisory Partners LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Meridian Wealth Partners, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |