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 2024
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Mar 31, 2024. 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
- 271
- −5 vs. Q4 2023
- Shares held
- 33.6M
- +264.9K (+0.8%) vs. Q4 2023
- Total value
- $1.47B
- −$585.9M (−28.5%) vs. Q4 2023
- New holders
- 48
- 89 more added
- Sold out
- 53
- 98 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Petrus Trust Company, LTA | 7,061 | $310.0K | 0.03% | +1,374+24.2% | Added |
| Cynosure Management, LLC | 7,254 | $318.5K | 0.06% | +7,254 | New |
| HSBC Holdings PLC | 7,429 | $326.2K | 0.00% | +7,429 | New |
| Fox Run Management, L.L.C. | 7,689 | $337.6K | 0.07% | +7,689 | New |
| Bank of Montreal | 7,646 | $339.7K | 0.00% | +200+2.7% | Added |
| Guidance Capital, Inc | 8,417 | $343.2K | 0.13% | +941+12.6% | Added |
| Alps Advisors Inc | 7,928 | $348.1K | 0.00% | +1,717+27.6% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,070 | $354.4K | 0.00% | +6+0.1% | Added |
| Hennion & Walsh Asset Management, Inc. | 8,234 | $361.6K | 0.02% | −3,022−26.8% | Reduced |
| Teacher Retirement System of Texas | 8,529 | $375.0K | 0.00% | −496−5.5% | Reduced |
| Profund Advisors LLC | 8,658 | $380.2K | 0.01% | +1,763+25.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,867 | $389.4K | 0.00% | −1,925−17.8% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 8,884 | $390.1K | 0.00% | +8,884 | New |
| Lazard Asset Management LLC | 9,017 | $395.0K | 0.00% | −180−2.0% | Reduced |
| Stephens Inc | 9,139 | $401.3K | 0.01% | +9,139 | New |
| Cornerstone Investment Partners, LLC | 9,145 | $401.6K | 0.02% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 9,246 | $406.0K | 0.05% | +3,704+66.8% | Added |
| Cim, LLC | 9,315 | $409.0K | 0.06% | +70+0.8% | Added |
| Vestcor Inc | 9,383 | $412.0K | 0.01% | −3,828−29.0% | Reduced |
| Sherbrooke Park Advisers LLC | 9,724 | $427.0K | 0.08% | +9,724 | New |
| Oregon Public Employees Retirement Fund | 10,042 | $440.9K | 0.01% | −900−8.2% | Reduced |
| Commonwealth Equity Services, LLC | 10,207 | $448.0K | 0.00% | +5,246+105.7% | Added |
| Legato Capital Management LLC | 10,507 | $461.4K | 0.06% | −4,710−31.0% | Reduced |
| Arizona State Retirement System | 10,533 | $462.5K | 0.00% | −393−3.6% | Reduced |
| Point72 (DIFC) Ltd | 10,533 | $462.5K | 0.04% | +10,533 | New |
| Quantbot Technologies LP | 10,948 | $480.7K | 0.03% | +10,948 | New |
| ProShare Advisors LLC | 10,973 | $481.8K | 0.00% | +708+6.9% | Added |
| Crossmark Global Holdings, Inc. | 11,025 | $484.0K | 0.01% | −194−1.7% | Reduced |
| Juncture Wealth Strategies, LLC | 11,560 | $507.6K | 0.22% | −7,236−38.5% | Reduced |
| Amalgamated Bank | 11,618 | $510.0K | 0.00% | −4,726−28.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 11,691 | $514.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 12,139 | $532.0K | 0.00% | −44,162−78.4% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 12,455 | $547.0K | 0.01% | +4,811+62.9% | Added |
| Maryland State Retirement & Pension System | 13,581 | $549.1K | 0.01% | 00.0% | Unchanged |
| Advisory Research Inc | 13,329 | $585.3K | 0.12% | −845−6.0% | Reduced |
| Yousif Capital Management, LLC | 13,707 | $601.9K | 0.01% | −2,961−17.8% | Reduced |
| Campbell & CO Investment Adviser LLC | 13,792 | $605.6K | 0.05% | +13,792 | New |
| Handelsbanken Fonder AB | 14,100 | $619.0K | 0.00% | 00.0% | Unchanged |
| Annex Advisory Services, LLC | 14,777 | $648.9K | 0.02% | +917+6.6% | Added |
| Nations Financial Group Inc, | 14,923 | $655.3K | 0.06% | +399+2.7% | Added |
| Truist Financial Corp | 15,380 | $675.3K | 0.00% | −410−2.6% | Reduced |
| CI Private Wealth, LLC | 15,398 | $676.1K | 0.00% | −20.0% | Reduced |
| Comerica Bank | 15,591 | $684.6K | 0.00% | −1,179−7.0% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 17,920 | $688.1K | 0.00% | −509−2.8% | Reduced |
| Concurrent Investment Advisors, LLC | 15,778 | $692.8K | 0.03% | +15,778 | New |
| Shariaportfolio, Inc. | 16,019 | $703.4K | 0.41% | +2,445+18.0% | Added |
| Capital Impact Advisors, LLC | 16,425 | $721.2K | 0.94% | +1,121+7.3% | Added |
| Versor Investments LP | 16,700 | $733.3K | 0.15% | +16,700 | New |
| Glenmede Trust Co NA | 17,036 | $748.0K | 0.00% | −1,080−6.0% | Reduced |
| US Bancorp | 17,056 | $748.9K | 0.00% | −4,192−19.7% | Reduced |
| STRS Ohio | 17,100 | $750.0K | 0.00% | +1,100+6.9% | Added |
| Los Angeles Capital Management LLC | 17,428 | $765.3K | 0.00% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 17,689 | $777.0K | 0.08% | +17,689 | New |
| Louisiana State Employees Retirement System | 18,500 | $812.3K | 0.02% | −200−1.1% | Reduced |
| HRT Financial LP | 18,608 | $817.0K | 0.01% | +18,608 | New |
| MetLife Investment Management | 19,517 | $857.0K | 0.01% | −950−4.6% | Reduced |
| State of Tennessee, Treasury Department | 19,614 | $861.3K | 0.00% | −827−4.0% | Reduced |
| Caitlin John, LLC | 20,022 | $879.2K | 0.67% | +5,580+38.6% | Added |
| DekaBank Deutsche Girozentrale | 20,848 | $892.0K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 20,347 | $893.4K | 0.00% | −554−2.7% | Reduced |
| Winton Group Ltd | 20,581 | $903.7K | 0.06% | +12,514+155.1% | Added |
| Deutsche Bank AG | 20,775 | $912.2K | 0.00% | −9,911−32.3% | Reduced |
| FMR LLC | 20,886 | $917.1K | 0.00% | +1,481+7.6% | Added |
| Manufacturers Life Insurance Company, The | 21,292 | $934.9K | 0.00% | +1,641+8.4% | Added |
| Illinois Municipal Retirement Fund | 21,365 | $938.0K | 0.01% | −228−1.1% | Reduced |
| Susquehanna International Group, LLP | 21,408 | $940.0K | 0.00% | −5,757−21.2% | Reduced |
| D.A. Davidson & Co. | 21,651 | $950.7K | 0.01% | −4,973−18.7% | Reduced |
| Arrowstreet Capital, Limited Partnership | 22,539 | $990.0K | 0.00% | +22,539 | New |
| State of Alaska, Department of Revenue | 22,764 | $999.0K | 0.01% | −225−1.0% | Reduced |
| Envestnet Asset Management Inc | 23,797 | $1.04M | 0.00% | +726+3.1% | Added |
| Engineers Gate Manager LP | 25,445 | $1.12M | 0.03% | +14,391+130.2% | Added |
| Franklin Resources Inc | 25,670 | $1.13M | 0.00% | −894−3.4% | Reduced |
| Advisor OS, LLC | 26,939 | $1.18M | 0.14% | +26,939 | New |
| Gotham Asset Management, LLC | 28,881 | $1.27M | 0.02% | +17,551+154.9% | Added |
| AXA S.A. | 29,678 | $1.30M | 0.00% | −2,500−7.8% | Reduced |
| SEI Investments Co | 30,630 | $1.34M | 0.00% | −6,653−17.8% | Reduced |
| New York State Teachers Retirement System | 30,855 | $1.35M | 0.00% | +3,514+12.9% | Added |
| Thrivent Financial for Lutherans | 32,417 | $1.42M | 0.00% | −880−2.6% | Reduced |
| Texas Permanent School Fund | 32,704 | $1.44M | 0.01% | +424+1.3% | Added |
| Russell Investments Group, Ltd. | 34,321 | $1.51M | 0.00% | −29,346−46.1% | Reduced |
| Redwood Investments, LLC | 35,056 | $1.52M | 0.44% | +35,056 | New |
| Navellier & Associates Inc | 34,591 | $1.52M | 0.19% | +26,864+347.7% | Added |
| Bridge City Capital, LLC | 34,773 | $1.53M | 0.56% | +275+0.8% | Added |
| Citigroup Inc | 34,948 | $1.53M | 0.00% | +4,008+13.0% | Added |
| Assetmark, Inc | 35,777 | $1.57M | 0.01% | −100.0% | Reduced |
| California State Teachers Retirement System | 38,269 | $1.68M | 0.00% | −2,886−7.0% | Reduced |
| Buck Wealth Strategies, LLC | 38,318 | $1.68M | 0.58% | +38,318 | New |
| Jane Street Group, LLC | 38,860 | $1.71M | 0.00% | −13,119−25.2% | Reduced |
| Martingale Asset Management L P | 39,273 | $1.72M | 0.03% | 00.0% | Unchanged |
| Hillsdale Investment Management Inc. | 39,279 | $1.72M | 0.14% | −57,074−59.2% | Reduced |
| Great West Life Assurance Co | 39,930 | $1.75M | 0.00% | +9,037+29.3% | Added |
| Clark Capital Management Group, Inc. | 40,064 | $1.76M | 0.01% | −22,178−35.6% | Reduced |
| Prudential Financial Inc | 41,984 | $1.84M | 0.00% | −1,025−2.4% | Reduced |
| UBS Asset Management Americas Inc | 43,836 | $1.92M | 0.00% | −1,456−3.2% | Reduced |
| Advisor Group Holdings, Inc. | 44,602 | $1.96M | 0.00% | +32,232+260.6% | Added |
| Alliancebernstein L.P. | 47,240 | $2.07M | 0.00% | −29,650−38.6% | Reduced |
| Shaker Investments LLC | 49,190 | $2.16M | 0.91% | +112+0.2% | Added |
| State of New Jersey Common Pension Fund D | 50,610 | $2.22M | 0.01% | +4,650+10.1% | Added |
| Credit Suisse AG | 51,312 | $2.25M | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 53,989 | $2.37M | 0.00% | +301+0.6% | Added |