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 |
|---|---|---|---|---|---|
| Bessemer Group Inc | 561 | $17.0K | 0.00% | −488,069−99.9% | Reduced |
| Smartleaf Asset Management LLC | 567 | $16.1K | 0.00% | −148−20.7% | Reduced |
| Massmutual Trust Co FSB | 431 | $12.5K | 0.00% | +334+344.3% | Added |
| US Bancorp | 402 | $11.7K | 0.00% | −446−52.6% | Reduced |
| Fifth Third Bancorp | 372 | $10.8K | 0.00% | −51−12.1% | Reduced |
| Public Employees Retirement System of Ohio | 357 | $10.3K | 0.00% | +68+23.5% | Added |
| Versant Capital Management, Inc | 356 | $10.3K | 0.00% | +135+61.1% | Added |
| Coldstream Capital Management Inc | 334 | $9.68K | 0.00% | +334 | New |
| Truvestments Capital LLC | 317 | $9.19K | 0.00% | −33−9.4% | Reduced |
| Covestor Ltd | 297 | $8.00K | 0.01% | +4+1.4% | Added |
| Harbour Investments, Inc. | 270 | $7.83K | 0.00% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 227 | $7.00K | 0.00% | +227 | New |
| Umb Bank N A | 227 | $6.58K | 0.00% | +174+328.3% | Added |
| Spire Wealth Management | 212 | $6.15K | 0.00% | +10+5.0% | Added |
| Lindbrook Capital, LLC | 209 | $6.06K | 0.00% | +155+287.0% | Added |
| Daiwa Securities Group Inc. | 185 | $5.00K | 0.00% | 00.0% | Unchanged |
| Anchor Investment Management, LLC | 150 | $4.35K | 0.00% | 00.0% | Unchanged |
| City State Bank | 150 | $4.35K | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 149 | $4.32K | 0.00% | +104+231.1% | Added |
| Farther Finance Advisors, LLC | 135 | $3.82K | 0.00% | −8−5.6% | Reduced |
| Jones Financial Companies LLLP | 131 | $3.72K | 0.00% | +50+61.7% | Added |
| Caitong International Asset Management Co., Ltd | 123 | $3.57K | 0.00% | −481−79.6% | Reduced |
| Capital Advisors, Ltd. LLC | 75 | $2.00K | 0.00% | −15−16.7% | Reduced |
| Rothschild Investment LLC | 60 | $1.74K | 0.00% | +50+500.0% | Added |
| CoreCap Advisors, LLC | 59 | $1.71K | 0.00% | 00.0% | Unchanged |
| Cherry Tree Wealth Management, LLC | 58 | $1.68K | 0.00% | +58 | New |
| Parallel Advisors, LLC | 58 | $1.68K | 0.00% | +47+427.3% | Added |
| SBI Securities Co., Ltd. | 40 | $1.16K | 0.00% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 39 | $1.00K | 0.00% | +39 | New |
| Boston Private Wealth LLC | 34 | $986 | 0.00% | +34 | New |
| Farmers & Merchants Investments Inc | 28 | $812 | 0.00% | 00.0% | Unchanged |
| Barrow Hanley Mewhinney & Strauss LLC | 20 | $580 | 0.00% | +20 | New |
| Private Wealth Management Group, LLC | 20 | $580 | 0.00% | +20 | New |
| Bell Investment Advisors, Inc | 15 | $435 | 0.00% | −12−44.4% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 15 | $435 | 0.00% | 00.0% | Unchanged |
| Stephens Consulting, LLC | 15 | $435 | 0.00% | +15 | New |
| Legacy Wealth Managment, LLC | 10 | $290 | 0.00% | 00.0% | Unchanged |
| Bruce G. Allen Investments, LLC | 9 | $261 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 9 | $261 | 0.00% | +9 | New |
| Abound Wealth Management | 4 | $116 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 4 | $116 | 0.00% | +3+300.0% | Added |
| Proequities, Inc. | 0 | $0 | 0.00% | −1,063−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −1,374,125−100.0% | Sold out |
| Oberweis Asset Management Inc | 0 | $0 | 0.00% | −184,595−100.0% | Sold out |
| Clark Capital Management Group, Inc. | 0 | $0 | 0.00% | −148,075−100.0% | Sold out |
| Portolan Capital Management, LLC | 0 | $0 | 0.00% | −131,123−100.0% | Sold out |
| Renaissance Group LLC | 0 | $0 | 0.00% | −99,572−100.0% | Sold out |
| Mutual of America Capital Management LLC | 0 | $0 | 0.00% | −92,251−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −90,484−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −42,614−100.0% | Sold out |
| Chatham Capital Group, Inc. | 0 | $0 | 0.00% | −27,295−100.0% | Sold out |
| Glenmede Trust Co NA | 0 | $0 | 0.00% | −24,743−100.0% | Sold out |
| Redwood Investments, LLC | 0 | $0 | 0.00% | −21,459−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −19,150−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −18,526−100.0% | Sold out |
| Invst, LLC | 0 | $0 | 0.00% | −11,346−100.0% | Sold out |
| D.A. Davidson & Co. | 0 | $0 | 0.00% | −11,244−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −9,803−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −9,983−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −9,200−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −8,991−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −8,666−100.0% | Sold out |
| BCJ Capital Management, LLC | 0 | $0 | 0.00% | −7,638−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −7,395−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −7,036−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −6,700−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −6,621−100.0% | Sold out |
| Yorktown Management & Research Co Inc | 0 | $0 | 0.00% | −6,600−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −6,338−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −6,109−100.0% | Sold out |
| Truist Financial Corp | 0 | $0 | 0.00% | −5,661−100.0% | Sold out |
| Dakota Wealth Management | 0 | $0 | 0.00% | −5,486−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −5,421−100.0% | Sold out |
| Alan B. Lancz & Associates, Inc. | 0 | $0 | 0.00% | −5,400−100.0% | Sold out |
| Mendota Financial Group, LLC | 0 | $0 | 0.00% | −3,426−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −2,869−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −1,630−100.0% | Sold out |
| Asset Management One Co.,Ltd. | 0 | $0 | 0.00% | −1,297−100.0% | Sold out |
| NVWM, LLC | 0 | $0 | 0.00% | −627−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −548−100.0% | Sold out |
| Advisors Asset Management, Inc. | 0 | $0 | 0.00% | −399−100.0% | Sold out |
| Richardson Financial Services Inc. | 0 | $0 | 0.00% | −246−100.0% | Sold out |
| Silicon Valley Capital Partners | 0 | $0 | 0.00% | −229−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| LGT Financial Advisors LLC | 0 | $0 | 0.00% | −83−100.0% | Sold out |
| Eagle Bay Advisors LLC | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| Park Square Financial Group, LLC | 0 | $0 | 0.00% | −64−100.0% | Sold out |
| Private Trust Co NA | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Cornerstone Planning Group LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| JFS Wealth Advisors, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| SJS Investment Consulting Inc. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Mesirow Institutional Investment Management, Inc. | – | – | – | – | Not filed |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Virtus Fund Advisers, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Legacy Investment Solutions, LLC | – | – | – | – | Not filed |