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, Q4 2022
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Dec 31, 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
- 213
- +10 vs. Q3 2022
- Shares held
- 29.1M
- −680.0K (−2.3%) vs. Q3 2022
- Total value
- $816.7M
- −$21.9M (−2.6%) vs. Q3 2022
- New holders
- 26
- 71 more added
- Sold out
- 16
- 83 more reduced
4 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Versor Investments LP | 15,800 | $442.7K | 0.04% | +4,871+44.6% | Added |
| Engineers Gate Manager LP | 16,273 | $456.0K | 0.03% | +16,273 | New |
| Schonfeld Strategic Advisors LLC | 16,398 | $459.5K | 0.00% | −16,502−50.2% | Reduced |
| XTX Topco Ltd | 16,480 | $461.8K | 0.10% | +16,480 | New |
| DekaBank Deutsche Girozentrale | 16,800 | $470.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 17,074 | $478.4K | 0.00% | +1,624+10.5% | Added |
| HRT Financial LP | 17,693 | $495.0K | 0.01% | +17,693 | New |
| Mirae Asset Global Investments Co., Ltd. | 17,715 | $496.4K | 0.00% | +488+2.8% | Added |
| Louisiana State Employees Retirement System | 17,900 | $502.0K | 0.01% | −400−2.2% | Reduced |
| Guggenheim Capital LLC | 18,169 | $509.1K | 0.00% | +4,096+29.1% | Added |
| STRS Ohio | 18,300 | $512.0K | 0.00% | −9,000−33.0% | Reduced |
| Amalgamated Bank | 18,409 | $516.0K | 0.00% | −168−0.9% | Reduced |
| Voya Investment Management LLC | 19,696 | $551.9K | 0.00% | 00.0% | Unchanged |
| Panagora Asset Management Inc | 19,785 | $554.4K | 0.00% | −4,883−19.8% | Reduced |
| Gotham Asset Management, LLC | 20,262 | $567.7K | 0.02% | −2,770−12.0% | Reduced |
| MetLife Investment Management | 20,467 | $573.5K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 20,772 | $582.0K | 0.00% | −201−1.0% | Reduced |
| Alberta Investment Management Corp | 20,982 | $587.9K | 0.01% | +4,918+30.6% | Added |
| Deutsche Bank AG | 21,145 | $592.5K | 0.00% | +2,836+15.5% | Added |
| Comerica Bank | 20,752 | $601.0K | 0.00% | −6,840−24.8% | Reduced |
| Raymond James & Associates | 23,078 | $646.6K | 0.00% | −2,834−10.9% | Reduced |
| Occudo Quantitative Strategies LP | 23,213 | $650.4K | 0.08% | −20,237−46.6% | Reduced |
| Aviva PLC | 23,323 | $653.5K | 0.00% | −31,154−57.2% | Reduced |
| Yousif Capital Management, LLC | 23,647 | $662.6K | 0.01% | −4,645−16.4% | Reduced |
| Acadian Asset Management LLC | 23,870 | $668.0K | 0.00% | −83,303−77.7% | Reduced |
| Texas Permanent School Fund | 25,344 | $710.0K | 0.01% | −2,155−7.8% | Reduced |
| Virginia Retirement Systems Et Al | 25,600 | $717.3K | 0.01% | +8,900+53.3% | Added |
| State of Alaska, Department of Revenue | 26,168 | $733.0K | 0.01% | −301−1.1% | Reduced |
| State of Tennessee, Treasury Department | 26,639 | $746.0K | 0.00% | 00.0% | Unchanged |
| Ziegler Capital Management, LLC | 27,367 | $766.8K | 0.03% | −6,380−18.9% | Reduced |
| Assetmark, Inc | 27,946 | $783.0K | 0.00% | +1,814+6.9% | Added |
| New York State Teachers Retirement System | 28,387 | $795.0K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 28,533 | $799.5K | 0.00% | +1,787+6.7% | Added |
| Truist Financial Corp | 28,568 | $800.5K | 0.00% | +20,640+260.3% | Added |
| FMR LLC | 29,308 | $821.2K | 0.00% | +32+0.1% | Added |
| Summit Global Investments | 29,500 | $827.0K | 0.07% | +9,400+46.8% | Added |
| Winton Group Ltd | 31,618 | $885.9K | 0.06% | +5,265+20.0% | Added |
| Citigroup Inc | 31,747 | $889.6K | 0.00% | +757+2.4% | Added |
| Quantedge Capital Pte Ltd | 35,153 | $985.0K | 0.33% | −71,047−66.9% | Reduced |
| Trexquant Investment LP | 36,185 | $1.01M | 0.03% | +9,703+36.6% | Added |
| Victory Capital Management Inc | 37,092 | $1.04M | 0.00% | +665+1.8% | Added |
| Exchange Traded Concepts, LLC | 37,152 | $1.04M | 0.03% | +1,135+3.2% | Added |
| Great West Life Assurance Co | 37,965 | $1.06M | 0.00% | −4,402−10.4% | Reduced |
| Thrivent Financial for Lutherans | 38,669 | $1.08M | 0.00% | −852−2.2% | Reduced |
| American Century Companies Inc | 38,800 | $1.09M | 0.00% | −17,180−30.7% | Reduced |
| State of Wisconsin Investment Board | 39,291 | $1.10M | 0.00% | +210+0.5% | Added |
| Teacher Retirement System of Texas | 39,494 | $1.11M | 0.01% | −9,662−19.7% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 40,346 | $1.13M | 0.01% | +5,512+15.8% | Added |
| Cornercap Investment Counsel Inc | 41,046 | $1.15M | 0.20% | 00.0% | Unchanged |
| Citadel Advisors LLC | 42,507 | $1.19M | 0.00% | −132,758−75.7% | Reduced |
| Twinbeech Capital LP | 43,937 | $1.23M | 0.02% | +43,937 | New |
| UBS Asset Management Americas Inc | 44,087 | $1.24M | 0.00% | −2,336−5.0% | Reduced |
| Schroder Investment Management Group | 44,326 | $1.24M | 0.00% | −14,850−25.1% | Reduced |
| Renaissance Group LLC | 44,596 | $1.25M | 0.06% | +232+0.5% | Added |
| Martingale Asset Management L P | 46,148 | $1.29M | 0.03% | −19,388−29.6% | Reduced |
| D.A. Davidson & Co. | 48,911 | $1.37M | 0.02% | −179−0.4% | Reduced |
| California State Teachers Retirement System | 49,409 | $1.38M | 0.00% | +385+0.8% | Added |
| Credit Suisse AG | 55,710 | $1.56M | 0.00% | +16,781+43.1% | Added |
| Allianz Asset Management GmbH | 57,745 | $1.62M | 0.00% | +36,821+176.0% | Added |
| D. E. Shaw & Co., Inc. | 57,948 | $1.62M | 0.00% | +69+0.1% | Added |
| Qube Research & Technologies Ltd | 61,271 | $1.72M | 0.01% | −20,521−25.1% | Reduced |
| Barclays PLC | 62,930 | $1.76M | 0.00% | +7,426+13.4% | Added |
| First Trust Advisors LP | 64,989 | $1.82M | 0.00% | +64,989 | New |
| Bank of America Corp | 65,009 | $1.82M | 0.00% | −23,758−26.8% | Reduced |
| Globeflex Capital L P | 66,122 | $1.85M | 0.23% | −6,131−8.5% | Reduced |
| Public Sector Pension Investment Board | 68,584 | $1.92M | 0.02% | −1,495−2.1% | Reduced |
| Russell Investments Group, Ltd. | 73,102 | $2.05M | 0.00% | +1,708+2.4% | Added |
| Two Sigma Advisers, LP | 80,400 | $2.25M | 0.01% | −10,200−11.3% | Reduced |
| Alliancebernstein L.P. | 80,444 | $2.25M | 0.00% | +29,955+59.3% | Added |
| Shaker Investments LLC | 81,287 | $2.28M | 1.41% | +888+1.1% | Added |
| Rhumbline Advisers | 84,358 | $2.36M | 0.00% | −228−0.3% | Reduced |
| Legal & General Group Plc | 92,590 | $2.59M | 0.00% | +1,150+1.3% | Added |
| Swiss National Bank | 94,600 | $2.65M | 0.00% | +2,000+2.2% | Added |
| Voloridge Investment Management, LLC | 94,621 | $2.65M | 0.01% | −67,637−41.7% | Reduced |
| Millennium Management LLC | 97,430 | $2.73M | 0.00% | +83,670+608.1% | Added |
| Prudential Financial Inc | 106,733 | $2.99M | 0.01% | −34,399−24.4% | Reduced |
| Allspring Global Investments Holdings, LLC | 110,365 | $3.09M | 0.01% | −116,159−51.3% | Reduced |
| AQR Capital Management LLC | 112,603 | $3.16M | 0.01% | +17,850+18.8% | Added |
| JPMorgan Chase & Co | 113,753 | $3.19M | 0.00% | −105,930−48.2% | Reduced |
| Mutual of America Capital Management LLC | 116,027 | $3.25M | 0.04% | +32,777+39.4% | Added |
| Lam Group, Inc. | 130,250 | $3.65M | 3.75% | +130,250 | New |
| Oberweis Asset Management Inc | 134,000 | $3.75M | 0.80% | +32,500+32.0% | Added |
| AXA S.A. | 149,406 | $4.19M | 0.02% | +3,141+2.1% | Added |
| Arrowstreet Capital, Limited Partnership | 166,040 | $4.65M | 0.01% | −35,025−17.4% | Reduced |
| Hillsdale Investment Management Inc. | 172,238 | $4.83M | 0.41% | −25,500−12.9% | Reduced |
| Assenagon Asset Management S.A. | 173,479 | $4.86M | 0.02% | +28,263+19.5% | Added |
| Ameriprise Financial Inc | 174,820 | $4.90M | 0.00% | −18,074−9.4% | Reduced |
| Jacobs Levy Equity Management, Inc | 190,672 | $5.34M | 0.04% | +2,633+1.4% | Added |
| Frontier Capital Management Co LLC | 203,971 | $5.72M | 0.06% | −602−0.3% | Reduced |
| Silvercrest Asset Management Group LLC | 223,158 | $6.25M | 0.05% | −1,998−0.9% | Reduced |
| Pacer Advisors, Inc. | 231,009 | $6.47M | 0.03% | +231,009 | New |
| Principal Financial Group Inc | 238,952 | $6.70M | 0.01% | −5,791−2.4% | Reduced |
| Goldman Sachs Group Inc | 267,267 | $7.49M | 0.00% | +92,924+53.3% | Added |
| Portolan Capital Management, LLC | 270,791 | $7.59M | 0.75% | −11,396−4.0% | Reduced |
| Eagle Asset Management Inc | 300,873 | $8.48M | 0.05% | −9,382−3.0% | Reduced |
| Charles Schwab Investment Management Inc | 326,788 | $9.16M | 0.00% | +19,495+6.3% | Added |
| Nordea Investment Management AB | 337,427 | $9.49M | 0.01% | −7,951−2.3% | Reduced |
| Bank of New York Mellon Corp | 346,016 | $9.70M | 0.00% | −16,859−4.6% | Reduced |
| Mesirow Institutional Investment Management, Inc. | 374,414 | $10.5M | 1.38% | −2,685−0.7% | Reduced |
| Nuveen Asset Management, LLC | 384,005 | $10.8M | 0.00% | −32,602−7.8% | Reduced |