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 2021
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Sep 30, 2021. 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
- 140
- −4 vs. Q2 2021
- Shares held
- 27.9M
- +679.9K (+2.5%) vs. Q2 2021
- Total value
- $530.8M
- −$18.5M (−3.4%) vs. Q2 2021
- New holders
- 11
- 51 more added
- Sold out
- 15
- 54 more reduced
2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 7,177,581 | $136.4M | 0.00% | −92,038−1.3% | Reduced |
| Federated Hermes, Inc. | 3,465,025 | $65.9M | 0.13% | +123,524+3.7% | Added |
| Vanguard Group Inc | 2,522,624 | $48.0M | 0.00% | +62,893+2.6% | Added |
| Dimensional Fund Advisors LP | 1,744,915 | $33.2M | 0.01% | +49,022+2.9% | Added |
| State Street Corp | 1,460,335 | $27.8M | 0.00% | +20,404+1.4% | Added |
| Janus Henderson Group PLC | 970,551 | $18.4M | 0.01% | +415,515+74.9% | Added |
| Invesco Ltd. | 714,319 | $13.6M | 0.00% | −74,095−9.4% | Reduced |
| Geode Capital Management, LLC | 703,915 | $13.4M | 0.00% | +14,831+2.2% | Added |
| Goldman Sachs Group Inc | 575,231 | $10.9M | 0.00% | −268,831−31.8% | Reduced |
| Morgan Stanley | 517,435 | $9.84M | 0.00% | +103,210+24.9% | Added |
| Northern Trust Corp | 423,385 | $8.05M | 0.00% | −10,218−2.4% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 401,100 | $7.63M | 0.05% | +1,655+0.4% | Added |
| Silvercrest Asset Management Group LLC | 368,951 | $7.01M | 0.05% | −8,504−2.3% | Reduced |
| Bank of New York Mellon Corp | 364,000 | $6.92M | 0.00% | +8,452+2.4% | Added |
| Nuveen Asset Management, LLC | 374,052 | $6.87M | 0.00% | −45,085−10.8% | Reduced |
| Wells Fargo & Company | 315,629 | $6.00M | 0.00% | −52,390−14.2% | Reduced |
| Eagle Asset Management Inc | 284,618 | $5.41M | 0.02% | −19,856−6.5% | Reduced |
| Nordea Investment Management AB | 277,822 | $5.38M | 0.01% | −3,346−1.2% | Reduced |
| Renaissance Technologies LLC | 275,700 | $5.24M | 0.01% | +28,600+11.6% | Added |
| Frontier Capital Management Co LLC | 255,813 | $4.86M | 0.04% | +70,834+38.3% | Added |
| Charles Schwab Investment Management Inc | 252,767 | $4.80M | 0.00% | −620−0.2% | Reduced |
| Principal Financial Group Inc | 252,168 | $4.79M | 0.00% | −1,516−0.6% | Reduced |
| Jacobs Levy Equity Management, Inc | 201,128 | $3.82M | 0.03% | +11,051+5.8% | Added |
| Arrowstreet Capital, Limited Partnership | 198,472 | $3.77M | 0.00% | +52,554+36.0% | Added |
| Millennium Management LLC | 196,938 | $3.74M | 0.00% | +180,428+1,092.8% | Added |
| Ameriprise Financial Inc | 188,436 | $3.58M | 0.00% | −5,134−2.7% | Reduced |
| Assenagon Asset Management S.A. | 177,803 | $3.38M | 0.01% | −12,214−6.4% | Reduced |
| JPMorgan Chase & Co | 173,690 | $3.30M | 0.00% | −8,305−4.6% | Reduced |
| Russell Investments Group, Ltd. | 168,405 | $3.20M | 0.01% | +168,014+42,970.3% | Added |
| Parametric Portfolio Associates LLC | 150,788 | $2.87M | 0.00% | −1,242−0.8% | Reduced |
| Prudential Financial Inc | 126,652 | $2.41M | 0.00% | −55,013−30.3% | Reduced |
| Martingale Asset Management L P | 109,987 | $2.09M | 0.03% | +60,570+122.6% | Added |
| Norges Bank | 92,200 | $1.75M | 0.00% | +27,700+42.9% | Added |
| Public Sector Pension Investment Board | 92,089 | $1.75M | 0.01% | +17,137+22.9% | Added |
| Alliancebernstein L.P. | 87,935 | $1.67M | 0.00% | +40,265+84.5% | Added |
| Legal & General Group Plc | 85,269 | $1.62M | 0.00% | +8,668+11.3% | Added |
| American Century Companies Inc | 84,221 | $1.60M | 0.00% | −9,067−9.7% | Reduced |
| Swiss National Bank | 83,800 | $1.59M | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 79,603 | $1.51M | 0.01% | +79,603 | New |
| Rhumbline Advisers | 78,426 | $1.49M | 0.00% | −12,900−14.1% | Reduced |
| Barclays PLC | 63,817 | $1.21M | 0.00% | +18,131+39.7% | Added |
| Renaissance Group LLC | 60,819 | $1.16M | 0.05% | −1,008−1.6% | Reduced |
| Summit Global Investments | 60,500 | $1.15M | 0.09% | +13,100+27.6% | Added |
| Winton Group Ltd | 58,326 | $1.11M | 0.06% | +4,574+8.5% | Added |
| Cornercap Investment Counsel Inc | 57,649 | $1.10M | 0.13% | −7,275−11.2% | Reduced |
| Bank of America Corp | 56,767 | $1.08M | 0.00% | −6,169−9.8% | Reduced |
| California State Teachers Retirement System | 50,866 | $967.0K | 0.00% | −235−0.5% | Reduced |
| State of Wisconsin Investment Board | 50,600 | $962.0K | 0.00% | 00.0% | Unchanged |
| LSV Asset Management | 49,300 | $937.0K | 0.00% | +18,900+62.2% | Added |
| BNP Paribas Arbitrage, SA | 47,861 | $909.8K | 0.00% | +25,212+111.3% | Added |
| Ziegler Capital Management, LLC | 47,483 | $903.0K | 0.03% | +13,736+40.7% | Added |
| Victory Capital Management Inc | 46,530 | $885.0K | 0.00% | +26,957+137.7% | Added |
| State Board of Administration of Florida Retirement System | 44,141 | $839.0K | 0.00% | +21,807+97.6% | Added |
| Tudor Investment Corp Et Al | 43,459 | $826.0K | 0.02% | +6,026+16.1% | Added |
| Factorial Partners, LLC | 39,000 | $741.0K | 0.50% | +19,000+95.0% | Added |
| Shell Asset Management Co | 37,022 | $704.0K | 0.02% | −1,600−4.1% | Reduced |
| Guggenheim Capital LLC | 37,056 | $704.0K | 0.00% | +37,056 | New |
| Credit Suisse AG | 34,667 | $659.0K | 0.00% | −4,407−11.3% | Reduced |
| UBS Asset Management Americas Inc | 34,016 | $646.6K | 0.00% | −9,795−22.4% | Reduced |
| Great West Life Assurance Co | 32,694 | $627.0K | 0.00% | +2,244+7.4% | Added |
| Voya Investment Management LLC | 32,717 | $622.0K | 0.00% | +6,810+26.3% | Added |
| Comerica Bank | 31,927 | $613.0K | 0.00% | −723−2.2% | Reduced |
| Citigroup Inc | 30,509 | $580.0K | 0.00% | +5,307+21.1% | Added |
| Thrivent Financial for Lutherans | 29,895 | $568.0K | 0.00% | −90−0.3% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 28,042 | $533.0K | 0.01% | −106−0.4% | Reduced |
| Allianz Asset Management GmbH | 28,017 | $533.0K | 0.00% | +226+0.8% | Added |
| PDT Partners, LLC | 27,537 | $523.0K | 0.04% | +27,537 | New |
| Texas Permanent School Fund | 27,359 | $520.0K | 0.01% | +25+0.1% | Added |
| State of Alaska, Department of Revenue | 26,978 | $512.0K | 0.01% | +1,600+6.3% | Added |
| New York State Common Retirement Fund | 26,798 | $509.0K | 0.00% | −5,606−17.3% | Reduced |
| Nisa Investment Advisors, LLC | 26,547 | $505.0K | 0.00% | −5,717−17.7% | Reduced |
| Franklin Resources Inc | 26,489 | $504.0K | 0.00% | +15,994+152.4% | Added |
| Occudo Quantitative Strategies LP | 24,850 | $472.0K | 0.06% | +10,940+78.6% | Added |
| Jump Financial, LLC | 24,000 | $456.0K | 0.03% | −13,700−36.3% | Reduced |
| American International Group, Inc. | 23,225 | $442.0K | 0.00% | −778−3.2% | Reduced |
| Deutsche Bank AG | 22,077 | $420.0K | 0.00% | −53,800−70.9% | Reduced |
| HSBC Holdings PLC | 21,718 | $420.0K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 20,436 | $388.0K | 0.00% | −1,259−5.8% | Reduced |
| New York State Teachers Retirement System | 20,327 | $386.0K | 0.00% | 00.0% | Unchanged |
| Truist Financial Corp | 19,376 | $368.0K | 0.00% | −3,722−16.1% | Reduced |
| AQR Capital Management LLC | 19,277 | $366.0K | 0.00% | −591−3.0% | Reduced |
| Acadian Asset Management LLC | 18,502 | $350.0K | 0.00% | −80,933−81.4% | Reduced |
| Louisiana State Employees Retirement System | 17,800 | $338.0K | 0.01% | +1,300+7.9% | Added |
| Amalgamated Bank | 17,720 | $337.0K | 0.00% | −291−1.6% | Reduced |
| Two Sigma Advisers, LP | 16,600 | $316.0K | 0.00% | −800−4.6% | Reduced |
| Globeflex Capital L P | 16,457 | $313.0K | 0.07% | 00.0% | Unchanged |
| ProShare Advisors LLC | 15,959 | $303.0K | 0.00% | −3,199−16.7% | Reduced |
| DekaBank Deutsche Girozentrale | 14,900 | $283.0K | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 14,760 | $281.0K | 0.00% | −100−0.7% | Reduced |
| Maryland State Retirement & Pension System | 14,542 | $281.0K | 0.01% | +14,542 | New |
| Bank of Montreal | 14,317 | $279.0K | 0.00% | −1,551−9.8% | Reduced |
| Cubist Systematic Strategies, LLC | 14,604 | $278.0K | 0.00% | −5,759−28.3% | Reduced |
| HRT Financial LP | 14,315 | $272.0K | 0.00% | −21,733−60.3% | Reduced |
| Public Employees Retirement Association of Colorado | 13,727 | $261.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 12,543 | $238.4K | 0.00% | 00.0% | Unchanged |
| Bluestein R H & Co | 12,500 | $238.0K | 0.01% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 11,789 | $225.0K | 0.00% | −1,256−9.6% | Reduced |
| MetLife Investment Management | 11,803 | $224.4K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 10,900 | $207.0K | 0.00% | 00.0% | Unchanged |
| Oberweis Asset Management Inc | 10,600 | $202.0K | 0.04% | 00.0% | Unchanged |