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, Q1 2025
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Mar 31, 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
- 241
- −18 vs. Q4 2024
- Shares held
- 33.2M
- −1.45M (−4.2%) vs. Q4 2024
- Total value
- $963.6M
- −$324.6M (−25.2%) vs. Q4 2024
- New holders
- 32
- 81 more added
- Sold out
- 50
- 95 more reduced
5 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State of Alaska, Department of Revenue | 20,781 | $602.0K | 0.01% | −544−2.6% | Reduced |
| Illinois Municipal Retirement Fund | 20,355 | $590.1K | 0.01% | −604−2.9% | Reduced |
| Franklin Resources Inc | 20,260 | $587.3K | 0.00% | −7,145−26.1% | Reduced |
| Jain Global LLC | 20,136 | $583.7K | 0.01% | +2,162+12.0% | Added |
| Creative Planning | 20,127 | $583.5K | 0.00% | +20,114+154,723.1% | Added |
| DekaBank Deutsche Girozentrale | 20,848 | $580.0K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 19,826 | $574.8K | 0.00% | −1,431−6.7% | Reduced |
| Corebridge Financial, Inc. | 19,756 | $572.7K | 0.00% | −693−3.4% | Reduced |
| XTX Topco Ltd | 18,358 | $532.2K | 0.03% | +18,358 | New |
| Voya Investment Management LLC | 18,142 | $525.9K | 0.00% | +1,357+8.1% | Added |
| First Trust Advisors LP | 17,852 | $517.5K | 0.00% | −63,277−78.0% | Reduced |
| Louisiana State Employees Retirement System | 17,700 | $513.1K | 0.01% | −400−2.2% | Reduced |
| Algert Global LLC | 17,300 | $501.5K | 0.01% | +17,300 | New |
| Wellington Management Group LLP | 16,913 | $490.3K | 0.00% | −871−4.9% | Reduced |
| Advisor Group Holdings, Inc. | 16,142 | $467.9K | 0.00% | −58−0.4% | Reduced |
| Assenagon Asset Management S.A. | 15,216 | $441.1K | 0.00% | −146,183−90.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 15,326 | $433.6K | 0.00% | +1,262+9.0% | Added |
| Handelsbanken Fonder AB | 14,400 | $417.0K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 14,300 | $414.6K | 0.00% | −6,066−29.8% | Reduced |
| Amundi | 14,925 | $406.6K | 0.00% | −4,658−23.8% | Reduced |
| Advisory Research Inc | 13,889 | $402.6K | 0.07% | +36+0.3% | Added |
| Cambridge Investment Research Advisors, Inc. | 13,790 | $400.0K | 0.00% | +1,694+14.0% | Added |
| Cynosure Management, LLC | 12,401 | $359.5K | 0.05% | +4,783+62.8% | Added |
| Teachers Retirement System of the State of Kentucky | 11,691 | $338.0K | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 11,593 | $336.1K | 0.04% | +6,731+138.4% | Added |
| Comerica Bank | 11,563 | $335.2K | 0.00% | −242−2.0% | Reduced |
| Profund Advisors LLC | 11,256 | $326.3K | 0.01% | +3,336+42.1% | Added |
| Segall Bryant & Hamill, LLC | 11,185 | $324.3K | 0.00% | −7,696−40.8% | Reduced |
| Yousif Capital Management, LLC | 11,115 | $322.2K | 0.00% | −231−2.0% | Reduced |
| ProShare Advisors LLC | 11,077 | $321.1K | 0.00% | −2,775−20.0% | Reduced |
| Arizona State Retirement System | 11,012 | $319.2K | 0.00% | −292−2.6% | Reduced |
| Maryland State Retirement & Pension System | 10,936 | $317.0K | 0.01% | −1,694−13.4% | Reduced |
| State Board of Administration of Florida Retirement System | 10,913 | $316.4K | 0.00% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 10,870 | $315.1K | 0.00% | −17,578−61.8% | Reduced |
| Amalgamated Bank | 10,761 | $312.0K | 0.00% | −237−2.2% | Reduced |
| Teacher Retirement System of Texas | 10,358 | $300.3K | 0.00% | −1,190−10.3% | Reduced |
| Pathstone Holdings, LLC | 10,328 | $299.7K | 0.00% | +634+6.5% | Added |
| Significant Wealth Partners LLC | 10,215 | $296.1K | 0.15% | +3,080+43.2% | Added |
| Envestnet Asset Management Inc | 9,938 | $288.1K | 0.00% | −22,265−69.1% | Reduced |
| Cim, LLC | 9,888 | $286.7K | 0.04% | −190−1.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 9,644 | $279.6K | 0.03% | −551−5.4% | Reduced |
| SEI Investments Co | 9,591 | $278.0K | 0.00% | −18,534−65.9% | Reduced |
| Virginia Retirement Systems Et Al | 9,562 | $277.2K | 0.00% | +9,562 | New |
| Vestcor Inc | 9,383 | $272.0K | 0.01% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 9,319 | $270.2K | 0.00% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 9,300 | $269.6K | 0.00% | −7,492−44.6% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,975 | $260.2K | 0.00% | +969+12.1% | Added |
| Exchange Traded Concepts, LLC | 8,866 | $257.0K | 0.00% | +8,866 | New |
| Brevan Howard Capital Management LP | 8,585 | $248.9K | 0.01% | +1,680+24.3% | Added |
| Oregon Public Employees Retirement Fund | 8,542 | $247.6K | 0.00% | −300−3.4% | Reduced |
| EntryPoint Capital, LLC | 8,498 | $246.4K | 0.11% | −5,160−37.8% | Reduced |
| Shaker Investments LLC | 8,475 | $245.7K | 0.12% | −10,045−54.2% | Reduced |
| CIBC World Markets Corp | 8,399 | $243.5K | 0.00% | +8,399 | New |
| Police & Firemen's Retirement System of New Jersey | 8,288 | $240.3K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 8,277 | $240.0K | 0.01% | +7,537+1,018.5% | Added |
| Bank of Montreal | 8,206 | $237.9K | 0.00% | −9−0.1% | Reduced |
| Rafferty Asset Management, LLC | 8,126 | $235.6K | 0.00% | +8,126 | New |
| Cornerstone Investment Partners, LLC | 8,028 | $232.7K | 0.01% | −702−8.0% | Reduced |
| Hohimer Wealth Management, LLC | 8,005 | $232.1K | 0.05% | +520+6.9% | Added |
| BNP Paribas Arbitrage, SA | 7,945 | $230.3K | 0.00% | −29,019−78.5% | Reduced |
| JustInvest LLC | 7,769 | $225.2K | 0.00% | +7,769 | New |
| Hennion & Walsh Asset Management, Inc. | 7,764 | $225.1K | 0.01% | −175−2.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,504 | $217.5K | 0.00% | 00.0% | Unchanged |
| Corient IA LLC | 7,500 | $217.4K | 0.15% | +7,500 | New |
| KLP Kapitalforvaltning AS | 7,400 | $214.5K | 0.00% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 7,230 | $209.6K | 0.00% | −8,151−53.0% | Reduced |
| Tiemann Investment Advisors, LLC | 6,962 | $201.8K | 0.09% | 00.0% | Unchanged |
| FORA Capital, LLC | 6,903 | $200.1K | 0.02% | +6,903 | New |
| Oakworth Capital, Inc. | 6,000 | $173.9K | 0.01% | +977+19.5% | Added |
| Public Employees Retirement Association of Colorado | 5,265 | $153.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 4,860 | $140.9K | 0.02% | +4,860 | New |
| FMR LLC | 4,806 | $139.3K | 0.00% | −16,539−77.5% | Reduced |
| The PNC Financial Services Group, Inc. | 4,783 | $138.7K | 0.00% | +580+13.8% | Added |
| Shell Asset Management Co | 4,633 | $134.0K | 0.01% | −201−4.2% | Reduced |
| Ameritas Investment Partners, Inc. | 3,762 | $109.1K | 0.00% | 00.0% | Unchanged |
| EMC Capital Management | 3,113 | $90.0K | 0.05% | 00.0% | Unchanged |
| Canada Pension Plan Investment Board | 2,700 | $78.3K | 0.00% | +2,600+2,600.0% | Added |
| 1620 Investment Advisors, Inc. | 2,277 | $66.0K | 0.05% | −11−0.5% | Reduced |
| KBC Group NV | 2,159 | $63.0K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 2,058 | $59.7K | 0.00% | +1,862+950.0% | Added |
| TD Private Client Wealth LLC | 1,727 | $50.1K | 0.00% | −372−17.7% | Reduced |
| Picton Mahoney Asset Management | 1,608 | $46.0K | 0.00% | +1,584+6,600.0% | Added |
| Mirae Asset Global Investments Co., Ltd. | 1,609 | $45.7K | 0.00% | +7+0.4% | Added |
| Ronald Blue Trust, Inc. | 1,459 | $42.3K | 0.00% | +243+20.0% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 1,359 | $39.0K | 0.00% | +1,359 | New |
| GAMMA Investing LLC | 1,333 | $38.6K | 0.00% | +424+46.6% | Added |
| Allworth Financial LP | 1,566 | $37.7K | 0.00% | +140+9.8% | Added |
| Pinnacle Financial Partners Inc | 1,000 | $37.1K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 1,230 | $35.7K | 0.00% | +220+21.8% | Added |
| Nisa Investment Advisors, LLC | 1,224 | $35.5K | 0.00% | +451+58.3% | Added |
| IFP Advisors, Inc | 1,158 | $33.7K | 0.00% | +1,158 | Added |
| Parkside Financial Bank & Trust | 1,006 | $29.2K | 0.00% | +27+2.8% | Added |
| Principal Securities, Inc. | 783 | $29.1K | 0.00% | 00.0% | Unchanged |
| Leonteq Securities AG | 1,000 | $29.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 987 | $28.6K | 0.00% | −158−13.8% | Reduced |
| Signaturefd, LLC | 872 | $25.3K | 0.00% | +520+147.7% | Added |
| CWM, LLC | 668 | $19.0K | 0.00% | −486−42.1% | Reduced |
| CIBC Private Wealth Group, LLC | 797 | $18.9K | 0.00% | +236+42.1% | Added |
| Larson Financial Group LLC | 625 | $18.1K | 0.00% | +625 | New |
| Huntington National Bank | 624 | $18.1K | 0.00% | −716−53.4% | Reduced |