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, Q3 2022
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Sep 30, 2022. 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
- 207
- −15 vs. Q2 2022
- Shares held
- 29.8M
- −611.9K (−2.0%) vs. Q2 2022
- Total value
- $839.3M
- −$220.2M (−20.8%) vs. Q2 2022
- New holders
- 21
- 80 more added
- Sold out
- 36
- 81 more reduced
1 institution that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2022: 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, Q3 2022
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q2 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 7,147,813 | $200.9M | 0.01% | +75,616+1.1% | Added |
| Federated Hermes, Inc. | 3,265,179 | $91.8M | 0.27% | −17,788−0.5% | Reduced |
| Vanguard Group Inc | 2,606,162 | $73.2M | 0.00% | +45,385+1.8% | Added |
| Dimensional Fund Advisors LP | 1,839,134 | $51.7M | 0.02% | +13,091+0.7% | Added |
| State Street Corp | 1,533,793 | $43.1M | 0.00% | −7,053−0.5% | Reduced |
| Price T Rowe Associates Inc | 808,731 | $22.7M | 0.00% | +645,917+396.7% | Added |
| Fuller & Thaler Asset Management, Inc. | 715,181 | $20.1M | 0.14% | −11,335−1.6% | Reduced |
| Morgan Stanley | 710,384 | $20.0M | 0.00% | −116,407−14.1% | Reduced |
| Geode Capital Management, LLC | 708,206 | $19.9M | 0.00% | +15,818+2.3% | Added |
| Invesco Ltd. | 587,943 | $16.5M | 0.01% | +77,896+15.3% | Added |
| Renaissance Technologies LLC | 433,800 | $12.2M | 0.02% | +26,900+6.6% | Added |
| Nuveen Asset Management, LLC | 416,607 | $11.7M | 0.00% | −174,217−29.5% | Reduced |
| Northern Trust Corp | 415,117 | $11.7M | 0.00% | −260.0% | Reduced |
| Mesirow Institutional Investment Management, Inc. | 377,099 | $10.6M | 1.54% | +377,099 | New |
| Bank of New York Mellon Corp | 362,875 | $10.2M | 0.00% | −2,971−0.8% | Reduced |
| Nordea Investment Management AB | 345,378 | $10.1M | 0.02% | −1,403−0.4% | Reduced |
| Eagle Asset Management Inc | 310,255 | $8.72M | 0.06% | +82,796+36.4% | Added |
| Charles Schwab Investment Management Inc | 307,293 | $8.63M | 0.00% | −7,500−2.4% | Reduced |
| Portolan Capital Management, LLC | 282,187 | $7.93M | 0.84% | +7,298+2.7% | Added |
| Principal Financial Group Inc | 244,743 | $6.88M | 0.01% | −11,801−4.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 226,524 | $6.37M | 0.01% | +167,471+283.6% | Added |
| Silvercrest Asset Management Group LLC | 225,156 | $6.33M | 0.05% | −6,120−2.6% | Reduced |
| JPMorgan Chase & Co | 219,683 | $6.17M | 0.00% | +2,527+1.2% | Added |
| Frontier Capital Management Co LLC | 204,573 | $5.75M | 0.07% | −1,090−0.5% | Reduced |
| Arrowstreet Capital, Limited Partnership | 201,065 | $5.65M | 0.01% | −103,607−34.0% | Reduced |
| Hillsdale Investment Management Inc. | 197,738 | $5.56M | 0.50% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 192,894 | $5.42M | 0.00% | −3,206−1.6% | Reduced |
| Jacobs Levy Equity Management, Inc | 188,039 | $5.28M | 0.04% | +910+0.5% | Added |
| Citadel Advisors LLC | 175,265 | $4.92M | 0.01% | +133,867+323.4% | Added |
| Goldman Sachs Group Inc | 174,343 | $4.90M | 0.00% | −155,500−47.1% | Reduced |
| Voloridge Investment Management, LLC | 162,258 | $4.56M | 0.02% | −14,724−8.3% | Reduced |
| AXA S.A. | 146,265 | $4.11M | 0.02% | +66,396+83.1% | Added |
| Assenagon Asset Management S.A. | 145,216 | $4.08M | 0.02% | −273,801−65.3% | Reduced |
| Prudential Financial Inc | 141,132 | $3.97M | 0.01% | +51,117+56.8% | Added |
| Acadian Asset Management LLC | 107,173 | $3.01M | 0.02% | −21,561−16.7% | Reduced |
| Quantedge Capital Pte Ltd | 106,200 | $2.98M | 0.92% | −15,300−12.6% | Reduced |
| Oberweis Asset Management Inc | 101,500 | $2.85M | 0.67% | +83,600+467.0% | Added |
| AQR Capital Management LLC | 94,753 | $2.66M | 0.01% | +59,463+168.5% | Added |
| Swiss National Bank | 92,600 | $2.60M | 0.00% | +2,100+2.3% | Added |
| Legal & General Group Plc | 91,440 | $2.57M | 0.00% | +2,206+2.5% | Added |
| Two Sigma Advisers, LP | 90,600 | $2.55M | 0.01% | −20,800−18.7% | Reduced |
| Bank of America Corp | 88,767 | $2.50M | 0.00% | +4,860+5.8% | Added |
| Rhumbline Advisers | 84,586 | $2.38M | 0.00% | +5,399+6.8% | Added |
| Mutual of America Capital Management LLC | 83,250 | $2.34M | 0.03% | +76,936+1,218.5% | Added |
| Qube Research & Technologies Ltd | 81,792 | $2.30M | 0.01% | +22,559+38.1% | Added |
| Shaker Investments LLC | 80,399 | $2.26M | 1.51% | +43,282+116.6% | Added |
| Globeflex Capital L P | 72,253 | $2.03M | 0.35% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 71,394 | $2.00M | 0.00% | −156,415−68.7% | Reduced |
| Public Sector Pension Investment Board | 70,079 | $1.97M | 0.02% | +477+0.7% | Added |
| Martingale Asset Management L P | 65,536 | $1.84M | 0.04% | −9,038−12.1% | Reduced |
| Schroder Investment Management Group | 59,176 | $1.66M | 0.00% | −456−0.8% | Reduced |
| D. E. Shaw & Co., Inc. | 57,879 | $1.63M | 0.00% | −3,856−6.2% | Reduced |
| American Century Companies Inc | 55,980 | $1.57M | 0.00% | +10,687+23.6% | Added |
| Barclays PLC | 55,504 | $1.56M | 0.00% | −8,614−13.4% | Reduced |
| Aviva PLC | 54,477 | $1.53M | 0.01% | −2,270−4.0% | Reduced |
| Alliancebernstein L.P. | 50,489 | $1.42M | 0.00% | +142+0.3% | Added |
| Teacher Retirement System of Texas | 49,156 | $1.38M | 0.01% | +42,037+590.5% | Added |
| D.A. Davidson & Co. | 49,090 | $1.38M | 0.02% | −1,249−2.5% | Reduced |
| California State Teachers Retirement System | 49,024 | $1.38M | 0.00% | −727−1.5% | Reduced |
| UBS Asset Management Americas Inc | 46,423 | $1.30M | 0.00% | −1,462−3.1% | Reduced |
| Renaissance Group LLC | 44,364 | $1.25M | 0.07% | +1,425+3.3% | Added |
| Occudo Quantitative Strategies LP | 43,450 | $1.22M | 0.09% | −22,663−34.3% | Reduced |
| Great West Life Assurance Co | 42,367 | $1.19M | 0.00% | +4,855+12.9% | Added |
| Cornercap Investment Counsel Inc | 41,046 | $1.15M | 0.22% | +10,939+36.3% | Added |
| Thrivent Financial for Lutherans | 39,521 | $1.11M | 0.00% | +2,581+7.0% | Added |
| State of Wisconsin Investment Board | 39,081 | $1.10M | 0.00% | −2,487−6.0% | Reduced |
| Credit Suisse AG | 38,929 | $1.09M | 0.00% | +3,531+10.0% | Added |
| Jane Street Group, LLC | 37,295 | $1.05M | 0.00% | +19,710+112.1% | Added |
| Robeco Institutional Asset Management B.V. | 36,497 | $1.03M | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 36,427 | $1.02M | 0.00% | −8,323−18.6% | Reduced |
| Exchange Traded Concepts, LLC | 36,017 | $1.01M | 0.03% | −18,276−33.7% | Reduced |
| Algert Global LLC | 35,523 | $998.0K | 0.06% | +4,790+15.6% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 34,834 | $979.0K | 0.01% | +559+1.6% | Added |
| Ziegler Capital Management, LLC | 33,747 | $948.0K | 0.04% | −199−0.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 32,900 | $924.0K | 0.01% | +25,100+321.8% | Added |
| Cubist Systematic Strategies, LLC | 32,330 | $908.0K | 0.01% | −79,827−71.2% | Reduced |
| Marshall Wace, LLP | 31,638 | $890.0K | 0.00% | +3,197+11.2% | Added |
| Citigroup Inc | 30,990 | $871.0K | 0.00% | −349−1.1% | Reduced |
| Comerica Bank | 27,592 | $852.0K | 0.01% | −2,680−8.9% | Reduced |
| FMR LLC | 29,276 | $823.0K | 0.00% | −231−0.8% | Reduced |
| New York State Teachers Retirement System | 28,387 | $798.0K | 0.00% | +226+0.8% | Added |
| Yousif Capital Management, LLC | 28,292 | $795.0K | 0.01% | +163+0.6% | Added |
| Jackson Creek Investment Advisors LLC | 27,577 | $775.0K | 0.36% | −1,260−4.4% | Reduced |
| Texas Permanent School Fund | 27,499 | $773.0K | 0.01% | +323+1.2% | Added |
| STRS Ohio | 27,300 | $767.0K | 0.00% | +5,700+26.4% | Added |
| New York State Common Retirement Fund | 26,746 | $752.0K | 0.00% | +142+0.5% | Added |
| State of Tennessee, Treasury Department | 26,639 | $748.0K | 0.00% | −1,228−4.4% | Reduced |
| Trexquant Investment LP | 26,482 | $744.0K | 0.03% | −4,881−15.6% | Reduced |
| State of Alaska, Department of Revenue | 26,469 | $743.0K | 0.01% | −1,969−6.9% | Reduced |
| Winton Group Ltd | 26,353 | $741.0K | 0.05% | −3,288−11.1% | Reduced |
| Assetmark, Inc | 26,132 | $734.0K | 0.00% | +26,132 | New |
| Raymond James & Associates | 25,912 | $728.0K | 0.00% | +7,629+41.7% | Added |
| SEI Investments Co | 25,632 | $720.0K | 0.00% | −34,993−57.7% | Reduced |
| Panagora Asset Management Inc | 24,668 | $693.0K | 0.00% | +16,382+197.7% | Added |
| Gotham Asset Management, LLC | 23,032 | $647.0K | 0.02% | −16,400−41.6% | Reduced |
| Navellier & Associates Inc | 22,591 | $635.0K | 0.14% | −178−0.8% | Reduced |
| American International Group, Inc. | 20,973 | $589.0K | 0.00% | +275+1.3% | Added |
| Allianz Asset Management GmbH | 20,924 | $588.0K | 0.00% | −10,085−32.5% | Reduced |
| MetLife Investment Management | 20,467 | $575.1K | 0.00% | 00.0% | Unchanged |
| Summit Global Investments | 20,100 | $565.0K | 0.05% | −33,114−62.2% | Reduced |