AMPH
Amphastar Pharmaceuticals, Inc.$18.00-0.76 (-4.05%)HealthcareNASDAQ
Institutional Holders
50
as of Q4 2025
Total Shares Held
InfinityB
Total Value
$1.0300061941520005e+211T
% of Float
Infinity%
Price History
Top Institutional Holders(Q4 2025)
| # | Fund | Shares | Value | % of Portfolio | Type |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 3,864,029 | $103.0M | 0.00% | Share |
| 2 | VANGUARD GROUP INC | 2,312,964 | $61.9M | 0.00% | Share |
| 3 | TD ASSET MANAGEMENT INC | 1,963,052 | $52.0M | 0.04% | Share |
| 4 | DIMENSIONAL FUND ADVISORS LP | 1,728,587 | $46.0M | 0.01% | Share |
| 5 | STATE STREET CORP | 1,531,786 | $41.0M | 0.00% | Share |
| 6 | FULLER & THALER ASSET MANAGEMENT, INC. | 1,394,463 | $37.0M | 0.13% | Share |
| 7 | Epoch Investment Partners, Inc. | 1,126,585 | $30.0M | 0.17% | Share |
| 8 | BlackRock, Inc. | 1,079,649 | $28.0M | 0.00% | Share |
| 9 | MARSHALL WACE, LLP | 1,015,022 | $27.0M | 0.02% | Share |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 770,029 | $20.0M | 0.00% | Share |
| 11 | Boston Trust Walden Corp | 668,405 | $17.9M | 0.14% | Share |
| 12 | AMERICAN CENTURY COMPANIES INC | 665,336 | $17.0M | 0.01% | Share |
| 13 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 559,426 | $14.0M | 0.01% | Share |
| 14 | RENAISSANCE TECHNOLOGIES LLC | 544,700 | $14.0M | 0.02% | Share |
| 15 | D. E. Shaw & Co., Inc. | 548,604 | $14.0M | 0.01% | Share |
| 16 | Invesco Ltd. | 466,893 | $12.5M | 0.00% | Share |
| 17 | GOLDMAN SACHS GROUP INC | 465,498 | $12.0M | 0.00% | Share |
| 18 | SYSTEMATIC FINANCIAL MANAGEMENT LP | 419,540 | $11.2M | 0.26% | Share |
| 19 | Boston Trust Walden Corp | 418,861 | $11.2M | 0.08% | Share |
| 20 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 402,563 | $10.8M | 0.03% | Share |
| 21 | ROYCE & ASSOCIATES LP | 352,297 | $9.4M | 0.10% | Share |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 350,707 | $9.0M | 0.00% | Share |
| 23 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 323,549 | $8.0M | 0.17% | Share |
| 24 | NORTHERN TRUST CORP | 317,662 | $8.0M | 0.00% | Share |
| 25 | VICTORY CAPITAL MANAGEMENT INC | 305,161 | $8.0M | 0.00% | Share |
| 26 | Clark Capital Management Group, Inc. | 317,482 | $8.0M | 0.05% | Share |
| 27 | MORGAN STANLEY | 262,633 | $7.0M | 0.00% | Share |
| 28 | MILLENNIUM MANAGEMENT LLC | 290,673 | $7.0M | 0.00% | Share |
| 29 | UBS Group AG | 253,160 | $6.8M | 0.00% | Share |
| 30 | Bridge City Capital, LLC | 235,485 | $6.3M | 1.85% | Share |
| 31 | VANGUARD GROUP INC | 225,109 | $6.0M | 0.00% | Share |
| 32 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 231,305 | $6.0M | 0.02% | Share |
| 33 | PRINCIPAL FINANCIAL GROUP INC | 216,392 | $5.8M | 0.00% | Share |
| 34 | DENALI ADVISORS LLC | 211,765 | $5.7M | 0.63% | Share |
| 35 | CITADEL ADVISORS LLC | 221,081 | $5.0M | 0.00% | Share |
| 36 | MARSHALL WACE, LLP | 214,782 | $5.0M | 0.00% | Share |
| 37 | Pacer Advisors, Inc. | 177,744 | $4.8M | 0.01% | Share |
| 38 | Empowered Funds, LLC | 165,907 | $4.0M | 0.03% | Share |
| 39 | MORGAN STANLEY | 167,333 | $4.0M | 0.00% | Share |
| 40 | LAM GROUP, INC. | 130,800 | $3.5M | 2.00% | Share |
| 41 | RICE HALL JAMES & ASSOCIATES, LLC | 121,176 | $3.2M | 0.18% | Share |
| 42 | Trexquant Investment LP | 113,673 | $3.0M | 0.03% | Share |
| 43 | JANE STREET GROUP, LLC | 117,269 | $3.0M | 0.00% | Share |
| 44 | NEW YORK STATE COMMON RETIREMENT FUND | 125,968 | $3.0M | 0.00% | Share |
| 45 | AMERIPRISE FINANCIAL INC | 132,456 | $3.0M | 0.00% | Share |
| 46 | PUBLIC SECTOR PENSION INVESTMENT BOARD | 122,505 | $3.0M | 0.01% | Share |
| 47 | BESSEMER GROUP INC | 120,747 | $3.0M | 0.00% | Share |
| 48 | BlackRock, Inc. | 116,440 | $3.0M | 0.00% | Share |
| 49 | BlackRock, Inc. | 123,787 | $3.0M | 0.00% | Share |
| 50 | GEODE CAPITAL MANAGEMENT, LLC | 116,796 | $3.0M | 0.00% | Share |