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 2025
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Jun 30, 2025. 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
- 245
- +5 vs. Q1 2025
- Shares held
- 32.7M
- −518.9K (−1.6%) vs. Q1 2025
- Total value
- $752.0M
- −$211.6M (−22.0%) vs. Q1 2025
- New holders
- 45
- 91 more added
- Sold out
- 40
- 73 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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 2025
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Centiva Capital, LP | 24,161 | $554.7K | 0.04% | +24,161 | New |
| New York State Teachers Retirement System | 23,732 | $545.0K | 0.00% | −134−0.6% | Reduced |
| MetLife Investment Management | 23,093 | $530.2K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 23,026 | $528.7K | 0.00% | −46,744−67.0% | Reduced |
| Campbell & CO Investment Adviser LLC | 22,433 | $515.1K | 0.03% | −23,356−51.0% | Reduced |
| State of Alaska, Department of Revenue | 21,892 | $502.0K | 0.01% | +1,111+5.3% | Added |
| Fox Run Management, L.L.C. | 21,199 | $486.7K | 0.08% | +21,199 | New |
| Aquatic Capital Management LLC | 21,195 | $486.6K | 0.01% | +21,195 | New |
| DekaBank Deutsche Girozentrale | 20,848 | $475.0K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 20,338 | $467.0K | 0.00% | −2,151−9.6% | Reduced |
| Man Group plc | 20,300 | $466.1K | 0.00% | −17,937−46.9% | Reduced |
| Graham Capital Management, L.P. | 20,288 | $465.8K | 0.01% | −6,136−23.2% | Reduced |
| Illinois Municipal Retirement Fund | 19,937 | $457.8K | 0.01% | −418−2.1% | Reduced |
| Manufacturers Life Insurance Company, The | 18,688 | $429.1K | 0.00% | −1,138−5.7% | Reduced |
| Voya Investment Management LLC | 18,099 | $415.6K | 0.00% | −43−0.2% | Reduced |
| Cynosure Management, LLC | 17,820 | $409.1K | 0.05% | +5,419+43.7% | Added |
| Y-Intercept (Hong Kong) Ltd | 17,727 | $407.0K | 0.01% | +17,727 | New |
| Vident Advisory, LLC | 17,279 | $396.7K | 0.00% | +17,279 | New |
| Louisiana State Employees Retirement System | 17,200 | $394.9K | 0.01% | −500−2.8% | Reduced |
| Janus Henderson Group PLC | 16,868 | $387.4K | 0.00% | −107,534−86.4% | Reduced |
| Assenagon Asset Management S.A. | 16,610 | $381.4K | 0.00% | +1,394+9.2% | Added |
| Significant Wealth Partners LLC | 16,178 | $371.4K | 0.18% | +5,963+58.4% | Added |
| Occudo Quantitative Strategies LP | 15,774 | $362.2K | 0.04% | +15,774 | New |
| Wellington Management Group LLP | 15,618 | $358.6K | 0.00% | −1,295−7.7% | Reduced |
| Advisor Group Holdings, Inc. | 15,236 | $357.0K | 0.00% | −906−5.6% | Reduced |
| Advisory Research Inc | 14,898 | $342.1K | 0.05% | +1,009+7.3% | Added |
| PDT Partners, LLC | 14,630 | $335.9K | 0.02% | +14,630 | New |
| Handelsbanken Fonder AB | 14,400 | $331.0K | 0.00% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 14,014 | $321.8K | 0.00% | +3,144+28.9% | Added |
| Magnetar Financial LLC | 13,337 | $306.2K | 0.00% | +13,337 | New |
| Tudor Investment Corp Et Al | 12,916 | $296.6K | 0.00% | −8,877−40.7% | Reduced |
| SEI Investments Co | 12,672 | $291.0K | 0.00% | +3,081+32.1% | Added |
| JustInvest LLC | 12,624 | $289.8K | 0.00% | +4,855+62.5% | Added |
| Hohimer Wealth Management, LLC | 11,845 | $272.0K | 0.05% | +3,840+48.0% | Added |
| Bank of Montreal | 11,790 | $270.7K | 0.00% | +3,584+43.7% | Added |
| Teachers Retirement System of the State of Kentucky | 11,691 | $268.0K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 11,553 | $265.3K | 0.00% | −10−0.1% | Reduced |
| Cim, LLC | 11,429 | $262.4K | 0.04% | +1,541+15.6% | Added |
| Quantinno Capital Management LP | 11,269 | $258.7K | 0.00% | +11,269 | New |
| Federated Hermes, Inc. | 11,224 | $257.7K | 0.00% | −573,891−98.1% | Reduced |
| Segall Bryant & Hamill, LLC | 11,185 | $256.8K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 11,090 | $254.6K | 0.00% | +78+0.7% | Added |
| Yousif Capital Management, LLC | 11,078 | $254.4K | 0.00% | −37−0.3% | Reduced |
| Maryland State Retirement & Pension System | 10,936 | $251.1K | 0.01% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 10,913 | $250.6K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 10,549 | $242.0K | 0.00% | −212−2.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 10,340 | $237.4K | 0.00% | +10,340 | New |
| Teacher Retirement System of Texas | 10,251 | $235.4K | 0.00% | −107−1.0% | Reduced |
| Sterling Capital Management LLC | 10,217 | $234.6K | 0.00% | +898+9.6% | Added |
| ProShare Advisors LLC | 10,039 | $230.5K | 0.00% | −1,038−9.4% | Reduced |
| Exchange Traded Concepts, LLC | 9,831 | $225.7K | 0.00% | +965+10.9% | Added |
| Profund Advisors LLC | 9,638 | $221.3K | 0.01% | −1,618−14.4% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 9,579 | $219.9K | 0.00% | +9,579 | New |
| China Universal Asset Management Co., Ltd. | 9,468 | $217.4K | 0.02% | −176−1.8% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 9,440 | $216.7K | 0.00% | +465+5.2% | Added |
| Vestcor Inc | 9,383 | $215.0K | 0.01% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 9,300 | $213.5K | 0.00% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 8,762 | $201.2K | 0.00% | −800−8.4% | Reduced |
| Oregon Public Employees Retirement Fund | 8,442 | $193.8K | 0.00% | −100−1.2% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 8,288 | $190.3K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,504 | $172.3K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 7,400 | $169.9K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 7,203 | $165.4K | 0.00% | +2,397+49.9% | Added |
| The PNC Financial Services Group, Inc. | 6,483 | $148.8K | 0.00% | +1,700+35.5% | Added |
| Lazard Asset Management LLC | 6,344 | $145.0K | 0.00% | +6,344 | New |
| Oakworth Capital, Inc. | 6,000 | $137.8K | 0.01% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 5,265 | $121.0K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 4,502 | $103.0K | 0.00% | +3,834+574.0% | Added |
| Canada Pension Plan Investment Board | 4,200 | $96.4K | 0.00% | +1,500+55.6% | Added |
| Shell Asset Management Co | 4,173 | $96.0K | 0.00% | −460−9.9% | Reduced |
| Skopos Labs, Inc. | 3,778 | $86.7K | 0.01% | +3,629+2,435.6% | Added |
| Ameritas Investment Partners, Inc. | 3,762 | $86.4K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 3,583 | $82.3K | 0.00% | +2,596+263.0% | Added |
| State of Wyoming | 2,723 | $62.5K | 0.01% | −2,137−44.0% | Reduced |
| IFP Advisors, Inc | 2,035 | $51.9K | 0.00% | +877+75.7% | Added |
| GAMMA Investing LLC | 2,162 | $49.6K | 0.00% | +829+62.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 1,821 | $41.8K | 0.00% | +212+13.2% | Added |
| Ronald Blue Trust, Inc. | 1,776 | $40.8K | 0.00% | +317+21.7% | Added |
| TD Private Client Wealth LLC | 1,695 | $38.9K | 0.00% | −32−1.9% | Reduced |
| Allworth Financial LP | 1,545 | $35.5K | 0.00% | −21−1.3% | Reduced |
| Hantz Financial Services, Inc. | 1,377 | $32.0K | 0.00% | +1,338+3,430.8% | Added |
| Simplex Trading, LLC | 1,379 | $31.0K | 0.00% | +1,379 | New |
| Signaturefd, LLC | 1,272 | $29.2K | 0.00% | +400+45.9% | Added |
| Massmutual Trust Co FSB | 1,262 | $29.0K | 0.00% | +831+192.8% | Added |
| GF Fund Management Co. Ltd. | 1,230 | $28.2K | 0.00% | 00.0% | Unchanged |
| Pinnacle Financial Partners Inc | 1,000 | $23.0K | 0.00% | 00.0% | Unchanged |
| Leonteq Securities AG | 1,000 | $23.0K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 835 | $19.2K | 0.00% | −1,223−59.4% | Reduced |
| CIBC Private Wealth Group, LLC | 721 | $16.6K | 0.00% | −76−9.5% | Reduced |
| 1620 Investment Advisors, Inc. | 682 | $15.7K | 0.01% | −1,595−70.0% | Reduced |
| Versant Capital Management, Inc | 624 | $14.3K | 0.00% | +268+75.3% | Added |
| Fifth Third Bancorp | 480 | $11.0K | 0.00% | +108+29.0% | Added |
| US Bancorp | 431 | $9.90K | 0.00% | +29+7.2% | Added |
| Public Employees Retirement System of Ohio | 414 | $9.51K | 0.00% | +57+16.0% | Added |
| Nisa Investment Advisors, LLC | 374 | $8.59K | 0.00% | −850−69.4% | Reduced |
| Caitong International Asset Management Co., Ltd | 372 | $8.54K | 0.01% | +249+202.4% | Added |
| Jones Financial Companies LLLP | 367 | $8.47K | 0.00% | +236+180.2% | Added |
| Global Retirement Partners, LLC | 321 | $7.37K | 0.00% | +321 | New |
| Truvestments Capital LLC | 317 | $7.28K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 302 | $6.93K | 0.00% | +244+420.7% | Added |