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 2025
Institutional positions in Amphastar Pharmaceuticals, Inc. as of Dec 31, 2025. 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
- 236
- −6 vs. Q3 2025
- Shares held
- 33.6M
- +837.1K (+2.6%) vs. Q3 2025
- Total value
- $899.7M
- +$27.0M (+3.1%) vs. Q3 2025
- New holders
- 26
- 94 more added
- Sold out
- 32
- 87 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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 2025
Shares, value and share of portfolio for each institution holding Amphastar Pharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital Advisors, Ltd. LLC | 11 | $0 | 0.00% | +3+37.5% | Added |
| Gilpin Wealth Management, LLC | 2 | $54 | 0.00% | +2 | New |
| Abound Wealth Management | 4 | $108 | 0.00% | 00.0% | Unchanged |
| Kayne Anderson Rudnick Investment Management LLC | 15 | $402 | 0.00% | 00.0% | Unchanged |
| Trust Co | 15 | $402 | 0.00% | +15 | New |
| Ankerstar Wealth, LLC | 15 | $402 | 0.00% | +15 | New |
| Optima Capital LLC | 20 | $536 | 0.00% | +20 | New |
| Sunbelt Securities, Inc. | 22 | $589 | 0.00% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 24 | $643 | 0.00% | 00.0% | Unchanged |
| Hughes Financial Services, LLC | 24 | $643 | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 25 | $670 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 25 | $670 | 0.00% | +10+66.7% | Added |
| Flagship Harbor Advisors, LLC | 25 | $670 | 0.00% | +25 | New |
| Private Wealth Management Group, LLC | 26 | $697 | 0.00% | −1−3.7% | Reduced |
| Elequin Capital LP | 27 | $723 | 0.00% | +27 | New |
| SRS Capital Advisors, Inc. | 33 | $884 | 0.00% | −205−86.1% | Reduced |
| UMA Financial Services, Inc. | 41 | $1.10K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 43 | $1.15K | 0.00% | +1+2.4% | Added |
| HighMark Wealth Management LLC | 55 | $1.47K | 0.00% | 00.0% | Unchanged |
| Legacy Wealth Managment, LLC | 59 | $1.58K | 0.00% | +49+490.0% | Added |
| WealthCollab, LLC | 64 | $1.71K | 0.00% | −143−69.1% | Reduced |
| Optiver Holding B.V. | 64 | $1.71K | 0.00% | −82−56.2% | Reduced |
| Parallel Advisors, LLC | 68 | $1.82K | 0.00% | −18−20.9% | Reduced |
| Avion Wealth | 84 | $2.00K | 0.00% | −40−32.3% | Reduced |
| Covestor Ltd | 59 | $2.00K | 0.00% | +3+5.4% | Added |
| EverSource Wealth Advisors, LLC | 90 | $2.41K | 0.00% | −10−10.0% | Reduced |
| Rockefeller Capital Management L.P. | 100 | $2.68K | 0.00% | −323−76.4% | Reduced |
| CoreCap Advisors, LLC | 107 | $2.87K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 135 | $4.00K | 0.00% | 00.0% | Unchanged |
| City State Bank | 150 | $4.02K | 0.00% | 00.0% | Unchanged |
| Truvestments Capital LLC | 154 | $4.12K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 173 | $4.63K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 191 | $5.12K | 0.00% | −80−29.5% | Reduced |
| Essential Partners LLC | 200 | $5.36K | 0.00% | −50−20.0% | Reduced |
| Aster Capital Management (DIFC) Ltd | 200 | $5.36K | 0.00% | +200 | New |
| Spire Wealth Management | 213 | $5.70K | 0.00% | −4−1.8% | Reduced |
| Salomon & Ludwin, LLC | 229 | $6.12K | 0.00% | −148−39.3% | Reduced |
| Umb Bank N A | 250 | $6.70K | 0.00% | +3+1.2% | Added |
| Smartleaf Asset Management LLC | 259 | $6.99K | 0.00% | +52+25.1% | Added |
| Harbor Capital Advisors, Inc. | 271 | $7.00K | 0.00% | −5−1.8% | Reduced |
| MAI Capital Management | 358 | $9.59K | 0.00% | +300+517.2% | Added |
| Versant Capital Management, Inc | 362 | $9.69K | 0.00% | +71+24.4% | Added |
| Public Employees Retirement System of Ohio | 508 | $13.6K | 0.00% | +40+8.5% | Added |
| Fifth Third Bancorp | 509 | $13.6K | 0.00% | +58+12.9% | Added |
| Jones Financial Companies LLLP | 531 | $14.2K | 0.00% | +164+44.7% | Added |
| Signaturefd, LLC | 542 | $14.5K | 0.00% | +20+3.8% | Added |
| Nisa Investment Advisors, LLC | 620 | $16.6K | 0.00% | −9−1.4% | Reduced |
| 1620 Investment Advisors, Inc. | 718 | $19.2K | 0.01% | +36+5.3% | Added |
| Torren Management, LLC | 762 | $20.4K | 0.01% | +762 | New |
| Massmutual Trust Co FSB | 767 | $20.5K | 0.00% | −160−17.3% | Reduced |
| Larson Financial Group LLC | 768 | $20.6K | 0.00% | +359+87.8% | Added |
| US Bancorp | 806 | $21.6K | 0.00% | −44−5.2% | Reduced |
| Richardson Financial Services Inc. | 819 | $21.9K | 0.01% | +208+34.0% | Added |
| CIBC Private Wealth Group, LLC | 878 | $23.5K | 0.00% | +157+21.8% | Added |
| GF Fund Management Co. Ltd. | 902 | $24.2K | 0.00% | −98−9.8% | Reduced |
| Lazard Asset Management LLC | 912 | $24.4K | 0.00% | +912 | New |
| IFP Advisors, Inc | 970 | $26.0K | 0.00% | −600−38.2% | Reduced |
| Global Retirement Partners, LLC | 1,174 | $31.4K | 0.00% | +150+14.6% | Added |
| Ronald Blue Trust, Inc. | 1,240 | $33.2K | 0.00% | −528−29.9% | Reduced |
| Farther Finance Advisors, LLC | 1,381 | $37.0K | 0.00% | +437+46.3% | Added |
| Allworth Financial LP | 1,486 | $39.8K | 0.00% | +11+0.7% | Added |
| Pinnacle Wealth Planning Services, Inc. | 1,615 | $43.3K | 0.00% | +1,615 | New |
| CWM, LLC | 1,683 | $45.0K | 0.00% | +175+11.6% | Added |
| GAMMA Investing LLC | 1,685 | $45.1K | 0.00% | +462+37.8% | Added |
| Group One Trading, L.P. | 1,741 | $46.6K | 0.00% | −330−15.9% | Reduced |
| Tower Research Capital LLC (TRC) | 1,787 | $47.9K | 0.00% | +965+117.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 2,233 | $59.8K | 0.00% | +435+24.2% | Added |
| TD Private Client Wealth LLC | 2,418 | $64.8K | 0.00% | +1,944+410.1% | Added |
| Quadrant Capital Group LLC | 2,734 | $73.2K | 0.00% | −342−11.1% | Reduced |
| Ameritas Investment Partners, Inc. | 3,101 | $83.0K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 3,523 | $94.3K | 0.00% | −2,949−45.6% | Reduced |
| Russell Investments Group, Ltd. | 3,729 | $99.9K | 0.00% | −3,936−51.4% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 3,762 | $101.0K | 0.00% | +3,582+1,990.0% | Added |
| Basecamp Wealth Advisors LLC | 4,388 | $117.5K | 0.03% | +4,388 | New |
| Hantz Financial Services, Inc. | 4,484 | $120.0K | 0.00% | +1,362+43.6% | Added |
| Public Employees Retirement Association of Colorado | 5,265 | $141.0K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 5,808 | $155.5K | 0.00% | +277+5.0% | Added |
| China Universal Asset Management Co., Ltd. | 7,488 | $200.5K | 0.02% | −662−8.1% | Reduced |
| Corient IA LLC | 7,500 | $200.8K | 0.19% | +7,500 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,504 | $201.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 7,561 | $202.5K | 0.02% | +4,260+129.1% | Added |
| Rafferty Asset Management, LLC | 7,682 | $205.7K | 0.00% | +7,682 | New |
| Quest Partners LLC | 7,720 | $206.7K | 0.01% | −855−10.0% | Reduced |
| Jump Financial, LLC | 7,800 | $208.9K | 0.00% | +7,800 | New |
| CI Private Wealth, LLC | 7,839 | $209.9K | 0.00% | −7,884−50.1% | Reduced |
| KLP Kapitalforvaltning AS | 7,900 | $211.6K | 0.00% | +500+6.8% | Added |
| Susquehanna International Group, LLP | 8,133 | $217.8K | 0.00% | +8,133 | New |
| Oregon Public Employees Retirement Fund | 8,142 | $218.0K | 0.00% | +100+1.2% | Added |
| Yousif Capital Management, LLC | 8,721 | $226.3K | 0.00% | −552−6.0% | Reduced |
| Comerica Bank | 8,488 | $227.3K | 0.00% | −977−10.3% | Reduced |
| State of Tennessee, Treasury Department | 8,619 | $228.3K | 0.00% | −681−7.3% | Reduced |
| Commonwealth Equity Services, LLC | 8,742 | $234.1K | 0.00% | +882+11.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,760 | $234.6K | 0.00% | −358−3.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 9,053 | $242.0K | 0.00% | −1,470−14.0% | Reduced |
| ProShare Advisors LLC | 9,083 | $243.2K | 0.00% | +457+5.3% | Added |
| Ameritas Advisory Services, LLC | 9,186 | $246.0K | 0.01% | +9,186 | New |
| Royal Bank of Canada | 9,265 | $248.0K | 0.00% | −40,406−81.3% | Reduced |
| Acadian Asset Management LLC | 9,332 | $249.0K | 0.00% | −35,017−79.0% | Reduced |
| Exchange Traded Concepts, LLC | 9,418 | $252.2K | 0.00% | −567−5.7% | Reduced |
| Significant Wealth Partners LLC | 9,624 | $257.7K | 0.29% | −10,955−53.2% | Reduced |