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 2023
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Jun 30, 2023. 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
- 246
- +28 vs. Q1 2023
- Shares held
- 31.4M
- +1.20M (+4.0%) vs. Q1 2023
- Total value
- $1.80B
- +$671.1M (+59.2%) vs. Q1 2023
- New holders
- 50
- 80 more added
- Sold out
- 22
- 90 more reduced
Compare with Q1 2023: 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 2023
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rhumbline Advisers | 90,953 | $5.23M | 0.01% | −140.0% | Reduced |
| Janus Henderson Group PLC | 97,075 | $5.58M | 0.00% | −6,866−6.6% | Reduced |
| 1832 Asset Management L.P. | 100,000 | $5.75M | 0.01% | +100,000 | New |
| Hillsdale Investment Management Inc. | 100,208 | $5.76M | 0.53% | −54,830−35.4% | Reduced |
| First Trust Advisors LP | 101,937 | $5.86M | 0.01% | +61,604+152.7% | Added |
| Beacon Harbor Wealth Advisors, Inc. | 105,005 | $6.04M | 1.98% | +105,005 | New |
| Legal & General Group Plc | 109,425 | $6.29M | 0.00% | +14,663+15.5% | Added |
| Silvercrest Asset Management Group LLC | 109,647 | $6.30M | 0.04% | −45,221−29.2% | Reduced |
| Mutual of America Capital Management LLC | 110,186 | $6.33M | 0.07% | −937−0.8% | Reduced |
| Cubist Systematic Strategies, LLC | 121,026 | $6.96M | 0.08% | +61,052+101.8% | Added |
| D. E. Shaw & Co., Inc. | 123,599 | $7.10M | 0.01% | −13,714−10.0% | Reduced |
| Lam Group, Inc. | 128,000 | $7.36M | 6.85% | −2,250−1.7% | Reduced |
| Bank of America Corp | 128,314 | $7.37M | 0.00% | −162,423−55.9% | Reduced |
| Mesirow Institutional Investment Management, Inc. | 129,462 | $7.44M | 0.77% | −196,207−60.2% | Reduced |
| American Century Companies Inc | 131,609 | $7.56M | 0.01% | +10,788+8.9% | Added |
| Epoch Investment Partners, Inc. | 132,096 | $7.59M | 0.04% | +132,096 | New |
| Frontier Capital Management Co LLC | 145,896 | $8.38M | 0.08% | −41,164−22.0% | Reduced |
| Oberweis Asset Management Inc | 147,800 | $8.49M | 1.03% | −30,400−17.1% | Reduced |
| TD Asset Management Inc | 158,058 | $9.08M | 0.01% | +151,558+2,331.7% | Added |
| Ameriprise Financial Inc | 163,354 | $9.39M | 0.00% | −5,885−3.5% | Reduced |
| Citadel Advisors LLC | 177,950 | $10.2M | 0.01% | +146,609+467.8% | Added |
| Portolan Capital Management, LLC | 182,243 | $10.5M | 0.93% | −158,350−46.5% | Reduced |
| Voloridge Investment Management, LLC | 187,939 | $10.8M | 0.05% | +114,995+157.6% | Added |
| LSV Asset Management | 212,368 | $12.2M | 0.03% | +179,168+539.7% | Added |
| Millennium Management LLC | 228,230 | $13.1M | 0.01% | −115,330−33.6% | Reduced |
| Principal Financial Group Inc | 228,759 | $13.1M | 0.01% | −3,981−1.7% | Reduced |
| Goldman Sachs Group Inc | 284,574 | $16.4M | 0.00% | +62,899+28.4% | Added |
| Charles Schwab Investment Management Inc | 328,262 | $18.9M | 0.01% | −1,651−0.5% | Reduced |
| Nordea Investment Management AB | 338,792 | $19.4M | 0.03% | +8,579+2.6% | Added |
| Bank of New York Mellon Corp | 342,121 | $19.7M | 0.00% | −5,091−1.5% | Reduced |
| Nuveen Asset Management, LLC | 374,519 | $21.5M | 0.01% | +56,195+17.7% | Added |
| Jacobs Levy Equity Management, Inc | 383,208 | $22.0M | 0.13% | +256,827+203.2% | Added |
| Renaissance Technologies LLC | 492,583 | $28.3M | 0.04% | −4,217−0.8% | Reduced |
| Price T Rowe Associates Inc | 506,308 | $29.1M | 0.00% | +37,888+8.1% | Added |
| Granite Investment Partners, LLC | 533,159 | $30.6M | 1.22% | −3,662−0.7% | Reduced |
| Invesco Ltd. | 560,674 | $32.2M | 0.01% | −32,095−5.4% | Reduced |
| Morgan Stanley | 566,815 | $32.6M | 0.00% | +46,772+9.0% | Added |
| Northern Trust Corp | 635,443 | $36.5M | 0.01% | −13,785−2.1% | Reduced |
| Geode Capital Management, LLC | 780,259 | $44.8M | 0.01% | +20,278+2.7% | Added |
| Fuller & Thaler Asset Management, Inc. | 1,279,495 | $73.5M | 0.42% | +467,801+57.6% | Added |
| State Street Corp | 1,394,504 | $80.1M | 0.00% | +35,009+2.6% | Added |
| Neuberger Berman Group LLC | 1,490,284 | $85.6M | 0.08% | +1,059,032+245.6% | Added |
| Dimensional Fund Advisors LP | 1,930,615 | $110.9M | 0.04% | +13,044+0.7% | Added |
| Vanguard Group Inc | 2,773,609 | $159.4M | 0.00% | +122,004+4.6% | Added |
| Federated Hermes, Inc. | 3,428,930 | $197.1M | 0.49% | +42,317+1.2% | Added |
| BlackRock Inc. | 6,088,227 | $349.9M | 0.01% | −478,849−7.3% | Reduced |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −65,418−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −64,209−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −39,959−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −35,233−100.0% | Sold out |
| Ziegler Capital Management, LLC | 0 | $0 | 0.00% | −27,637−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −23,231−100.0% | Sold out |
| Royce & Associates LP | 0 | $0 | 0.00% | −22,315−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −21,852−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −20,982−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −19,785−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −16,870−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −14,302−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −12,826−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −10,024−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −5,700−100.0% | Sold out |
| TCI Wealth Advisors, Inc. | 0 | $0 | 0.00% | −379−100.0% | Sold out |
| Asset Management One Co.,Ltd. | 0 | $0 | 0.00% | −151−100.0% | Sold out |
| City State Bank | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Belpointe Asset Management LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Schubert & Co | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Steward Financial Group LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |