Amphastar PharmaceuticalsAMPH
13F holders, Q2 2024 (June 30)269holders −1
34new positions
37sold out
7famous investors
$40.01avg. 13F price*
At the end of Q2 2024, 269 institutions reported holding Amphastar Pharmaceuticals Inc. (AMPH) in their 13F filings, down 1 from Q1 2024. 34 opened new positions and 37 sold out. The largest holders were BlackRock Inc. ($237.7M), Vanguard Group Inc. ($106.9M) and Federated Hermes, Inc. ($77.8M). 7 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Steve Cohen (0.0% of Point72 Asset Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Amphastar Pharmaceuticals Inc.
- CUSIP
- 03209R103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024 → Q2 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 34 | $23.4M |
| Exits | 37 | $20.7M |
All 13F filers, Q1 2024 → Q2 2024: 3,275,152 shares bought and 2,474,059 shares sold, net +801,093 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 269 holders
| BlackRock Inc. | 0.01% | Reduce -2.3% | 5,942,524 | $237.7M |
| Vanguard Group Inc. | 0.00% | Reduce -2.2% | 2,672,862 | $106.9M |
| Federated Hermes, Inc. | 0.18% | Reduce -6.4% | 1,944,800 | $77.8M |
| TD Asset Management Inc | 0.06% | Add +67.4% | 1,691,569 | $67.7M |
| Neuberger Berman Group LLC | 0.05% | Reduce -2.2% | 1,622,609 | $64.9M |
| State Street Corp. | 0.00% | Add +1.0% | 1,529,536 | $61.2M |
| Fuller & Thaler Asset Management, Inc. | 0.22% | Reduce -0.1% | 1,272,818 | $50.9M |
| Epoch Investment Partners, Inc. | 0.20% | Add +35.1% | 1,078,852 | $43.2M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -9.6% | 1,070,275 | $42.8M |
| Geode Capital Management, LLC | 0.00% | Add +4.7% | 906,348 | $36.3M |
| American Century Companies Inc. | 0.02% | Add +19.7% | 740,408 | $29.6M |
| Millennium Management | 0.03% | Add +84.6% | 738,748 | $29.5M |
| Morgan Stanley | 0.00% | Add +9.1% | 610,137 | $24.4M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -0.1% | 583,906 | $23.4M |
| Northern Trust Corp. | 0.00% | Add +0.6% | 564,123 | $22.6M |
| Renaissance Technologies | 0.04% | Reduce -10.3% | 537,700 | $21.5M |
| Boone Capital Management LLC | 5.17% | Reduce -18.4% | 495,089 | $19.8M |
| Bessemer Group Inc. | 0.03% | Add +17.8% | 466,228 | $18.6M |
| Invesco Ltd. | 0.00% | Add +11.9% | 450,930 | $18.0M |
| Granite Investment Partners, LLC | 0.66% | Add +12.7% | 397,514 | $15.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.8% | 359,222 | $14.4M |
| Mesirow Institutional Investment Management, Inc. | 1.24% | Add +0.9% | 353,447 | $14.1M |
| Nuveen Asset Management, LLC | 0.00% | Add +60.9% | 301,589 | $12.1M |
| Bank of New York Mellon Corp | 0.00% | Reduce -1.5% | 289,954 | $11.6M |
| Nordea Investment Management AB | 0.01% | Reduce -15.7% | 280,584 | $11.3M |
| Citadel Advisors | 0.01% | Add +288.7% | 263,151 | $10.5M |
| Point72 Asset Management | 0.03% | Reduce -10.1% | 235,836 | $9.4M |
| Marshall Wace, LLP | 0.01% | New | 227,127 | $9.1M |
| Principal Financial Group Inc. | 0.01% | Reduce -0.2% | 218,172 | $8.7M |
| Qube Research & Technologies Ltd | 0.02% | Add +63.9% | 206,219 | $8.2M |
| Voloridge Investment Management, LLC | 0.03% | Reduce -9.2% | 201,473 | $8.1M |
| Victory Capital Management Inc. | 0.01% | Reduce -7.4% | 197,001 | $7.9M |
| Assenagon Asset Management S.A. | 0.02% | Add +22.9% | 189,605 | $7.6M |
| Silvercrest Asset Management Group LLC | 0.05% | Add +50.8% | 169,576 | $6.8M |
| Janus Henderson Group PLC | 0.00% | Reduce -1.8% | 156,264 | $6.3M |
| Bank of America Corp. | 0.00% | Add +23.8% | 155,267 | $6.2M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -23.1% | 153,606 | $6.1M |
| Oberweis Asset Management Inc./ | 0.33% | Reduce -67.7% | 135,055 | $5.4M |
| Lam Group, Inc. | 4.41% | No change | 130,800 | $5.2M |
| Frontier Capital Management Co. LLC | 0.05% | Reduce -0.9% | 124,768 | $5.0M |
| Ameriprise Financial Inc. | 0.00% | Reduce -8.0% | 123,913 | $5.0M |
| UBS Group AG | 0.00% | Add +52.5% | 122,681 | $4.9M |
| Raymond James & Associates | 0.00% | Add +16.9% | 114,719 | $4.6M |
| Portolan Capital Management, LLC | 0.36% | Add +19.6% | 108,863 | $4.4M |
| Two Sigma Advisers, LP | 0.01% | Reduce -15.7% | 106,100 | $4.2M |
| Legal & General Group Plc | 0.00% | Reduce -1.4% | 105,849 | $4.2M |
| Trexquant Investment LP | 0.06% | Add +36.0% | 105,745 | $4.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Add +17.6% | 104,121 | $4.2M |
| Clark Capital Management Group, Inc. | 0.03% | Add +143.1% | 97,410 | $3.9M |
| Jane Street Group, LLC | 0.00% | Add +148.9% | 96,714 | $3.9M |
| Two Sigma Investments, LP | 0.01% | Reduce -0.4% | 96,430 | $3.9M |
| Mutual of America Capital Management LLC | 0.04% | Reduce -4.0% | 93,729 | $3.7M |
| Rhumbline Advisers | 0.00% | Add +1.6% | 90,587 | $3.6M |
| Squarepoint Ops LLC | 0.01% | Add +10.4% | 90,552 | $3.6M |
| Ellsworth Advisors, LLC | 0.96% | Add +6.4% | 86,391 | $3.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +95.7% | 85,803 | $3.4M |
| Public Sector Pension Investment Board | 0.02% | Add +9.5% | 83,887 | $3.4M |
| LSV Asset Management | 0.01% | Reduce -64.2% | 80,400 | $3.2M |
| Swiss National Bank | 0.00% | Add +1.9% | 77,000 | $3.1M |
| Brandywine Global Investment Management, LLC | 0.02% | New | 74,115 | $3.0M |
| Wells Fargo & Company | 0.00% | Add +25.4% | 71,786 | $2.9M |
| JPMorgan Chase & Co. | 0.00% | Reduce -49.0% | 71,571 | $2.9M |
| New York State Common Retirement Fund | 0.00% | Add +21.7% | 65,727 | $2.6M |
| Renaissance Group LLC | 0.10% | Add +9.4% | 65,018 | $2.6M |
| Hussman Strategic Advisors, Inc. | 0.69% | No change | 63,000 | $2.5M |
| BNP Paribas Financial Markets | 0.00% | Reduce -3.4% | 59,182 | $2.4M |
| Voya Investment Management LLC | 0.00% | Reduce -26.0% | 58,966 | $2.4M |
| AQR Capital Management | 0.00% | Reduce -2.2% | 55,796 | $2.2M |
| Moody Aldrich Partners LLC | 0.43% | Reduce -26.2% | 55,734 | $2.2M |
| Cubist Systematic Strategies, LLC | 0.04% | Reduce -0.1% | 55,107 | $2.2M |
| Aurora Investment Counsel | 1.29% | New | 54,466 | $2.2M |
| ExodusPoint Capital Management, LP | 0.02% | Reduce -5.9% | 51,315 | $2.1M |
| Alliancebernstein L.P. | 0.00% | Add +5.4% | 49,770 | $2.0M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +23.0% | 49,122 | $2.0M |
| Bridge City Capital, LLC | 0.66% | Add +40.8% | 48,946 | $2.0M |
| Barclays PLC | 0.00% | Reduce -31.4% | 48,578 | $1.9M |
| Twinbeech Capital LP | 0.04% | Reduce -61.4% | 45,224 | $1.8M |
| Prudential Financial Inc. | 0.00% | Reduce -1.3% | 41,425 | $1.7M |
| Allspring Global Investments Holdings, LLC | 0.00% | Reduce -36.6% | 40,946 | $1.6M |
| Assetmark, Inc. | 0.01% | Add +12.5% | 40,256 | $1.6M |
| Martingale Asset Management L P | 0.03% | Reduce -0.0% | 39,265 | $1.6M |
| California State Teachers Retirement System | 0.00% | Reduce -0.4% | 38,117 | $1.5M |
| Engineers Gate Manager LP | 0.03% | Add +40.3% | 35,695 | $1.4M |
| Citigroup Inc. | 0.00% | Add +0.1% | 34,995 | $1.4M |
| Royal Bank of Canada | 0.00% | Add +173.4% | 33,184 | $1.3M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -2.3% | 31,665 | $1.3M |
| State of Wisconsin Investment Board | 0.00% | Reduce -59.8% | 31,296 | $1.3M |
| Franklin Resources Inc. | 0.00% | Add +11.6% | 28,640 | $1.1M |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -85.3% | 28,616 | $1.1M |
| New York State Teachers Retirement System | 0.00% | Reduce -9.3% | 27,980 | $1.1M |
| FMR LLC | 0.00% | Add +32.9% | 27,752 | $1.1M |
| Gotham Asset Management | 0.01% | Reduce -4.2% | 27,675 | $1.1M |
| Redwood Investments, LLC | 0.36% | Reduce -23.6% | 26,769 | $1.1M |
| Sei Investments Co. | 0.00% | Reduce -13.3% | 26,543 | $1.1M |
| Advisor OS, LLC | 0.11% | Reduce -3.4% | 26,012 | $1.0M |
| Arkadios Wealth Advisors | 0.07% | New | 25,755 | $1.0M |
| Envestnet Asset Management Inc. | 0.00% | Add +6.6% | 25,360 | $1.0M |
| AlphaCentric Advisors LLC | 0.74% | New | 25,000 | $1.0M |
| Centiva Capital, LP | 0.05% | New | 23,575 | $943K |
| MetLife Investment Management, LLC | 0.01% | Add +15.8% | 22,607 | $904K |
"% of holder's portfolio" is AMPH's weight in each manager's 13F, not the share of Amphastar Pharmaceuticals Inc. the manager owns.