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 2023
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Dec 31, 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
- 276
- +23 vs. Q3 2023
- Shares held
- 33.3M
- +1.32M (+4.1%) vs. Q3 2023
- Total value
- $2.06B
- +$588.4M (+40.0%) vs. Q3 2023
- New holders
- 48
- 97 more added
- Sold out
- 25
- 93 more reduced
3 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Stratos Wealth Partners, LTD. | 6,926 | $428.4K | 0.01% | +2,255+48.3% | Added |
| Mark Sheptoff Financial Planning, LLC | 7,000 | $432.9K | 0.26% | +6,700+2,233.3% | Added |
| Guidance Capital, Inc | 7,476 | $465.7K | 0.19% | +324+4.5% | Added |
| Bank of Montreal | 7,446 | $467.3K | 0.00% | −546−6.8% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 7,644 | $473.0K | 0.01% | +7,644 | New |
| Navellier & Associates Inc | 7,727 | $477.9K | 0.07% | +7,727 | New |
| Cim, LLC | 9,245 | $479.9K | 0.07% | +505+5.8% | Added |
| Jefferies Financial Group Inc. | 7,800 | $482.4K | 0.01% | +7,800 | New |
| AXS Investments LLC | 8,000 | $494.8K | 0.12% | +8,000 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,064 | $498.8K | 0.00% | −17,413−68.3% | Reduced |
| Winton Group Ltd | 8,067 | $498.9K | 0.04% | −168−2.0% | Reduced |
| SG Americas Securities, LLC | 8,719 | $539.0K | 0.01% | −42,008−82.8% | Reduced |
| Teacher Retirement System of Texas | 9,025 | $558.0K | 0.00% | −1,942−17.7% | Reduced |
| Cornerstone Investment Partners, LLC | 9,145 | $565.6K | 0.03% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 9,197 | $568.0K | 0.00% | +10+0.1% | Added |
| New York Life Investment Management LLC | 9,245 | $571.8K | 0.01% | −235−2.5% | Reduced |
| ProShare Advisors LLC | 10,265 | $634.9K | 0.00% | +1,286+14.3% | Added |
| Janney Montgomery Scott LLC | 10,368 | $641.0K | 0.00% | +10,368 | New |
| Westover Capital Advisors, LLC | 10,483 | $648.4K | 0.21% | +10,483 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10,792 | $667.5K | 0.00% | +1,356+14.4% | Added |
| Arizona State Retirement System | 10,926 | $675.8K | 0.01% | −70−0.6% | Reduced |
| Oregon Public Employees Retirement Fund | 10,942 | $676.8K | 0.01% | −375−3.3% | Reduced |
| State Board of Administration of Florida Retirement System | 10,963 | $678.1K | 0.00% | 00.0% | Unchanged |
| Skandinaviska Enskilda Banken AB (publ) | 11,000 | $680.4K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 11,054 | $683.7K | 0.02% | +6,392+137.1% | Added |
| Crossmark Global Holdings, Inc. | 11,219 | $694.0K | 0.01% | −194−1.7% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 11,256 | $696.2K | 0.04% | +2,328+26.1% | Added |
| Gotham Asset Management, LLC | 11,330 | $700.8K | 0.01% | +6,799+150.1% | Added |
| Tower Research Capital LLC (TRC) | 11,456 | $708.6K | 0.01% | +10,291+883.3% | Added |
| Teachers Retirement System of the State of Kentucky | 11,691 | $723.0K | 0.01% | 00.0% | Unchanged |
| Perigon Wealth Management, LLC | 12,102 | $748.5K | 0.02% | +7,319+153.0% | Added |
| ExodusPoint Capital Management, LP | 12,296 | $761.0K | 0.01% | +7,410+151.7% | Added |
| Advisor Group Holdings, Inc. | 12,370 | $764.9K | 0.00% | +3,985+47.5% | Added |
| AQR Capital Management LLC | 12,744 | $788.2K | 0.00% | −16,246−56.0% | Reduced |
| HighTower Advisors, LLC | 12,875 | $792.0K | 0.00% | +6,886+115.0% | Added |
| Seven Eight Capital, LP | 12,948 | $800.8K | 0.09% | +12,948 | New |
| Thoroughbred Financial Services, LLC | 13,095 | $809.0K | 0.07% | +8,608+191.8% | Added |
| Advisor Resource Council | 13,162 | $814.1K | 0.09% | +13,162 | New |
| Vestcor Inc | 13,211 | $817.0K | 0.03% | 00.0% | Unchanged |
| Natixis | 13,400 | $828.8K | 0.01% | +13,400 | New |
| Maryland State Retirement & Pension System | 13,581 | $840.0K | 0.02% | −455−3.2% | Reduced |
| Shariaportfolio, Inc. | 13,574 | $840.0K | 0.57% | +1,069+8.5% | Added |
| Annex Advisory Services, LLC | 13,860 | $857.2K | 0.04% | +9,435+213.2% | Added |
| Handelsbanken Fonder AB | 14,100 | $872.0K | 0.00% | +5,000+54.9% | Added |
| Wakefield Asset Management LLLP | 14,128 | $873.8K | 0.32% | +14,128 | New |
| Advisory Research Inc | 14,174 | $876.7K | 0.14% | −716−4.8% | Reduced |
| Caitlin John, LLC | 14,442 | $893.2K | 0.73% | +14,442 | New |
| Nations Financial Group Inc, | 14,524 | $898.3K | 0.08% | +3,982+37.8% | Added |
| Legato Capital Management LLC | 15,217 | $941.2K | 0.12% | +7,431+95.4% | Added |
| Capital Impact Advisors, LLC | 15,304 | $946.6K | 1.24% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 15,400 | $952.5K | 0.00% | −4,942−24.3% | Reduced |
| Baird Financial Group, Inc. | 15,539 | $961.1K | 0.00% | +11,124+252.0% | Added |
| Truist Financial Corp | 15,790 | $976.6K | 0.00% | +1,480+10.3% | Added |
| STRS Ohio | 16,000 | $989.0K | 0.00% | −2,600−14.0% | Reduced |
| Amalgamated Bank | 16,344 | $1.01M | 0.01% | −578−3.4% | Reduced |
| Jackson Creek Investment Advisors LLC | 16,618 | $1.03M | 0.39% | −20.0% | Reduced |
| Yousif Capital Management, LLC | 16,668 | $1.03M | 0.01% | −1,060−6.0% | Reduced |
| Comerica Bank | 16,770 | $1.04M | 0.00% | +620+3.8% | Added |
| Algert Global LLC | 16,820 | $1.04M | 0.04% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 17,428 | $1.08M | 0.00% | −10,015−36.5% | Reduced |
| Glenmede Trust Co NA | 18,116 | $1.12M | 0.01% | +7,672+73.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 18,429 | $1.14M | 0.00% | +48+0.3% | Added |
| Louisiana State Employees Retirement System | 18,700 | $1.16M | 0.02% | −700−3.6% | Reduced |
| Juncture Wealth Strategies, LLC | 18,796 | $1.16M | 0.53% | +1,085+6.1% | Added |
| FMR LLC | 19,405 | $1.20M | 0.00% | −7,417−27.7% | Reduced |
| Calamos Advisors LLC | 19,479 | $1.20M | 0.01% | +19,479 | New |
| Manufacturers Life Insurance Company, The | 19,651 | $1.22M | 0.00% | −431−2.1% | Reduced |
| Zacks Investment Management | 20,268 | $1.25M | 0.02% | −1,707−7.8% | Reduced |
| State of Tennessee, Treasury Department | 20,441 | $1.26M | 0.00% | −983−4.6% | Reduced |
| MetLife Investment Management | 20,467 | $1.27M | 0.01% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 20,848 | $1.29M | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 20,901 | $1.29M | 0.01% | +52+0.2% | Added |
| US Bancorp | 21,248 | $1.31M | 0.00% | +20,475+2,648.8% | Added |
| Exchange Traded Concepts, LLC | 21,440 | $1.33M | 0.04% | +169+0.8% | Added |
| Illinois Municipal Retirement Fund | 21,593 | $1.34M | 0.02% | −479−2.2% | Reduced |
| State of Alaska, Department of Revenue | 22,989 | $1.42M | 0.02% | −738−3.1% | Reduced |
| Envestnet Asset Management Inc | 23,071 | $1.43M | 0.00% | +6,146+36.3% | Added |
| LPL Financial LLC | 23,231 | $1.44M | 0.00% | +2,603+12.6% | Added |
| Franklin Resources Inc | 26,564 | $1.64M | 0.00% | −186−0.7% | Reduced |
| D.A. Davidson & Co. | 26,624 | $1.65M | 0.02% | −205−0.8% | Reduced |
| Susquehanna International Group, LLP | 27,165 | $1.68M | 0.00% | −2,160−7.4% | Reduced |
| New York State Teachers Retirement System | 27,341 | $1.69M | 0.00% | −200−0.7% | Reduced |
| Tucker Asset Management LLC | 27,956 | $1.73M | 0.43% | −994−3.4% | Reduced |
| Deutsche Bank AG | 30,686 | $1.90M | 0.00% | +9,280+43.4% | Added |
| Great West Life Assurance Co | 30,893 | $1.91M | 0.00% | −2,424−7.3% | Reduced |
| Citigroup Inc | 30,940 | $1.91M | 0.00% | −10,650−25.6% | Reduced |
| AXA S.A. | 32,178 | $1.99M | 0.01% | −30,722−48.8% | Reduced |
| Texas Permanent School Fund | 32,280 | $2.00M | 0.02% | −84−0.3% | Reduced |
| Thrivent Financial for Lutherans | 33,297 | $2.06M | 0.00% | −30,633−47.9% | Reduced |
| Bridge City Capital, LLC | 34,498 | $2.13M | 0.83% | +11,839+52.2% | Added |
| Assetmark, Inc | 35,787 | $2.21M | 0.01% | +4,596+14.7% | Added |
| Eagle Asset Management Inc | 36,042 | $2.23M | 0.01% | −1,659−4.4% | Reduced |
| Wells Fargo & Company | 36,662 | $2.27M | 0.00% | +8,439+29.9% | Added |
| SEI Investments Co | 37,283 | $2.31M | 0.00% | +10,727+40.4% | Added |
| Trexquant Investment LP | 38,959 | $2.41M | 0.05% | +38,959 | New |
| Martingale Asset Management L P | 39,273 | $2.43M | 0.05% | −508−1.3% | Reduced |
| Allspring Global Investments Holdings, LLC | 39,886 | $2.47M | 0.00% | +32,850+466.9% | Added |
| Lisanti Capital Growth, LLC | 40,770 | $2.52M | 0.59% | +15,595+61.9% | Added |
| California State Teachers Retirement System | 41,155 | $2.55M | 0.00% | −1,368−3.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 41,164 | $2.55M | 0.01% | +22,737+123.4% | Added |