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 2024
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Jun 30, 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
- 269
- 0 vs. Q1 2024
- Shares held
- 34.4M
- +857.8K (+2.6%) vs. Q1 2024
- Total value
- $1.37B
- −$96.0M (−6.5%) vs. Q1 2024
- New holders
- 38
- 100 more added
- Sold out
- 38
- 100 more reduced
2 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2024
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Moody Aldrich Partners LLC | 55,734 | $2.23M | 0.43% | −19,744−26.2% | Reduced |
| AQR Capital Management LLC | 55,796 | $2.23M | 0.00% | −1,258−2.2% | Reduced |
| Voya Investment Management LLC | 58,966 | $2.36M | 0.00% | −20,678−26.0% | Reduced |
| BNP Paribas Arbitrage, SA | 59,182 | $2.37M | 0.00% | −2,051−3.3% | Reduced |
| Hussman Strategic Advisors, Inc. | 63,000 | $2.52M | 0.69% | 00.0% | Unchanged |
| Renaissance Group LLC | 65,018 | $2.60M | 0.10% | +5,616+9.5% | Added |
| New York State Common Retirement Fund | 65,727 | $2.63M | 0.00% | +11,738+21.7% | Added |
| JPMorgan Chase & Co | 71,571 | $2.86M | 0.00% | −68,883−49.0% | Reduced |
| Wells Fargo & Company | 71,786 | $2.87M | 0.00% | +14,545+25.4% | Added |
| Brandywine Global Investment Management, LLC | 74,115 | $2.96M | 0.02% | +74,115 | New |
| Swiss National Bank | 77,000 | $3.08M | 0.00% | +1,400+1.9% | Added |
| LSV Asset Management | 80,400 | $3.22M | 0.01% | −144,368−64.2% | Reduced |
| Public Sector Pension Investment Board | 83,887 | $3.36M | 0.02% | +7,294+9.5% | Added |
| UBS Asset Management Americas Inc | 85,803 | $3.43M | 0.00% | +41,967+95.7% | Added |
| Ellsworth Advisors, LLC | 86,391 | $3.46M | 0.96% | +5,226+6.4% | Added |
| Squarepoint Ops LLC | 90,552 | $3.62M | 0.01% | +8,501+10.4% | Added |
| Rhumbline Advisers | 90,587 | $3.62M | 0.00% | +1,394+1.6% | Added |
| Mutual of America Capital Management LLC | 93,729 | $3.75M | 0.04% | −3,954−4.0% | Reduced |
| Two Sigma Investments, LP | 96,430 | $3.86M | 0.01% | −374−0.4% | Reduced |
| Jane Street Group, LLC | 96,714 | $3.87M | 0.00% | +57,854+148.9% | Added |
| Clark Capital Management Group, Inc. | 97,410 | $3.90M | 0.03% | +57,346+143.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 104,121 | $4.16M | 0.02% | +15,569+17.6% | Added |
| Trexquant Investment LP | 105,745 | $4.23M | 0.06% | +28,020+36.1% | Added |
| Legal & General Group Plc | 105,849 | $4.23M | 0.00% | −1,478−1.4% | Reduced |
| Two Sigma Advisers, LP | 106,100 | $4.24M | 0.01% | −19,800−15.7% | Reduced |
| Portolan Capital Management, LLC | 108,863 | $4.35M | 0.36% | +17,858+19.6% | Added |
| Raymond James & Associates | 114,719 | $4.59M | 0.00% | +16,574+16.9% | Added |
| UBS Group AG | 122,681 | $4.91M | 0.00% | +42,229+52.5% | Added |
| Ameriprise Financial Inc | 123,913 | $4.96M | 0.00% | −10,716−8.0% | Reduced |
| Frontier Capital Management Co LLC | 124,768 | $4.99M | 0.05% | −1,195−0.9% | Reduced |
| Lam Group, Inc. | 130,800 | $5.23M | 4.41% | 00.0% | Unchanged |
| Oberweis Asset Management Inc | 135,055 | $5.40M | 0.33% | −282,810−67.7% | Reduced |
| Goldman Sachs Group Inc | 153,606 | $6.14M | 0.00% | −46,030−23.1% | Reduced |
| Bank of America Corp | 155,267 | $6.21M | 0.00% | +29,888+23.8% | Added |
| Janus Henderson Group PLC | 156,264 | $6.25M | 0.00% | −2,934−1.8% | Reduced |
| Silvercrest Asset Management Group LLC | 169,576 | $6.78M | 0.05% | +57,148+50.8% | Added |
| Assenagon Asset Management S.A. | 189,605 | $7.58M | 0.02% | +35,306+22.9% | Added |
| Victory Capital Management Inc | 197,001 | $7.88M | 0.01% | −15,685−7.4% | Reduced |
| Voloridge Investment Management, LLC | 201,473 | $8.06M | 0.03% | −20,327−9.2% | Reduced |
| Qube Research & Technologies Ltd | 206,219 | $8.25M | 0.02% | +80,384+63.9% | Added |
| Principal Financial Group Inc | 218,172 | $8.73M | 0.01% | −402−0.2% | Reduced |
| Marshall Wace, LLP | 227,127 | $9.09M | 0.01% | +227,127 | New |
| Point72 Asset Management, L.P. | 235,836 | $9.43M | 0.03% | −26,564−10.1% | Reduced |
| Citadel Advisors LLC | 263,151 | $10.5M | 0.01% | +195,454+288.7% | Added |
| Nordea Investment Management AB | 280,584 | $11.3M | 0.01% | −52,430−15.7% | Reduced |
| Bank of New York Mellon Corp | 289,954 | $11.6M | 0.00% | −4,529−1.5% | Reduced |
| Nuveen Asset Management, LLC | 301,589 | $12.1M | 0.00% | +114,098+60.9% | Added |
| Mesirow Institutional Investment Management, Inc. | 353,447 | $14.1M | 1.24% | +3,153+0.9% | Added |
| Charles Schwab Investment Management Inc | 359,222 | $14.4M | 0.00% | +2,817+0.8% | Added |
| Granite Investment Partners, LLC | 397,514 | $15.9M | 0.66% | +44,744+12.7% | Added |
| Invesco Ltd. | 450,930 | $18.0M | 0.00% | +47,890+11.9% | Added |
| Bessemer Group Inc | 466,228 | $18.6M | 0.03% | +70,287+17.8% | Added |
| Boone Capital Management LLC | 495,089 | $19.8M | 5.17% | −111,599−18.4% | Reduced |
| Renaissance Technologies LLC | 537,700 | $21.5M | 0.04% | −61,400−10.2% | Reduced |
| Northern Trust Corp | 564,123 | $22.6M | 0.00% | +3,341+0.6% | Added |
| Price T Rowe Associates Inc | 583,906 | $23.4M | 0.00% | −638−0.1% | Reduced |
| Morgan Stanley | 610,137 | $24.4M | 0.00% | +51,098+9.1% | Added |
| Millennium Management LLC | 738,748 | $29.5M | 0.02% | +338,653+84.6% | Added |
| American Century Companies Inc | 740,408 | $29.6M | 0.02% | +121,764+19.7% | Added |
| Geode Capital Management, LLC | 906,348 | $36.3M | 0.00% | +40,316+4.7% | Added |
| Dimensional Fund Advisors LP | 1,070,275 | $42.8M | 0.01% | −113,555−9.6% | Reduced |
| Epoch Investment Partners, Inc. | 1,078,852 | $43.2M | 0.20% | +280,390+35.1% | Added |
| Fuller & Thaler Asset Management, Inc. | 1,272,818 | $50.9M | 0.22% | −1,360−0.1% | Reduced |
| State Street Corp | 1,529,536 | $61.2M | 0.00% | +15,287+1.0% | Added |
| Neuberger Berman Group LLC | 1,622,609 | $64.9M | 0.05% | −37,208−2.2% | Reduced |
| TD Asset Management Inc | 1,691,569 | $67.7M | 0.06% | +680,976+67.4% | Added |
| Federated Hermes, Inc. | 1,944,800 | $77.8M | 0.18% | −132,301−6.4% | Reduced |
| Vanguard Group Inc | 2,672,862 | $106.9M | 0.00% | −61,178−2.2% | Reduced |
| BlackRock Inc. | 5,942,524 | $237.7M | 0.01% | −136,518−2.2% | Reduced |
| State of New Jersey Common Pension Fund D | 0 | $0 | 0.00% | −50,610−100.0% | Sold out |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −39,279−100.0% | Sold out |
| Buck Wealth Strategies, LLC | 0 | $0 | 0.00% | −38,318−100.0% | Sold out |
| Navellier & Associates Inc | 0 | $0 | 0.00% | −34,591−100.0% | Sold out |
| Texas Permanent School Fund | 0 | $0 | 0.00% | −32,704−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −29,678−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −22,539−100.0% | Sold out |
| D.A. Davidson & Co. | 0 | $0 | 0.00% | −21,651−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −20,347−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −18,608−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −17,428−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −16,700−100.0% | Sold out |
| Shariaportfolio, Inc. | 0 | $0 | 0.00% | −16,019−100.0% | Sold out |
| Concurrent Investment Advisors, LLC | 0 | $0 | 0.00% | −15,778−100.0% | Sold out |
| Nations Financial Group Inc, | 0 | $0 | 0.00% | −14,923−100.0% | Sold out |
| Annex Advisory Services, LLC | 0 | $0 | 0.00% | −14,777−100.0% | Sold out |
| BI Asset Management Fondsmaeglerselskab A/S | 0 | $0 | 0.00% | −12,455−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −6,592−100.0% | Sold out |
| Baird Financial Group, Inc. | 0 | $0 | 0.00% | −6,567−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −6,339−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −5,586−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −5,514−100.0% | Sold out |
| Stratos Wealth Partners, LTD. | 0 | $0 | 0.00% | −5,492−100.0% | Sold out |
| Perigon Wealth Management, LLC | 0 | $0 | 0.00% | −5,215−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −4,826−100.0% | Sold out |
| Mark Sheptoff Financial Planning, LLC | 0 | $0 | 0.00% | −2,250−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −2,110−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −1,700−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −1,487−100.0% | Sold out |
| Gladius Capital Management LP | 0 | $0 | 0.00% | −648−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −387−100.0% | Sold out |