AMPHASTAR PHARMACEUTICALS IN COM is a security (CUSIP 03209R103) tracked across SEC portfolio filings. 219 institutional managers reported $569.4M on Form 13F as of 2026-06-30; 18 registered fund positions totaling $21.9M via N-PORT as of 2026-05-31.
Showing 15 of 219 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| BlackRock, Inc. | New York, NY | $106.2M | 5,421,343 |
| VANGUARD GROUP INC | Valley Forge, PA | $69.8M | 2,608,158 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $39.7M | 2,027,947 |
| STATE STREET CORP | BOSTON, MA | $31.5M | 1,607,515 |
| FULLER & THALER ASSET MANAGEMENT, INC. | San Mateo, CA | $27.3M | 1,395,139 |
| MARSHALL WACE, LLP | LONDON, X0 | $20.1M | 1,025,640 |
| AMERICAN CENTURY COMPANIES INC | KANSAS CITY, MO | $19.9M | 1,017,538 |
| GEODE CAPITAL MANAGEMENT, LLC | BOSTON, MA | $19.1M | 976,650 |
| Epoch Investment Partners, Inc. | New York, NY | $17.6M | 898,895 |
| D. E. Shaw & Co., Inc. | New York, NY | $13.0M | 665,542 |
| RENAISSANCE TECHNOLOGIES LLC | NEW YORK, NY | $10.9M | 553,900 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | TEANECK, NJ | $8.6M | 439,870 |
| MORGAN STANLEY | NEW YORK, NY | $8.2M | 420,337 |
| UBS Group AG | Zurich, V8 | $8.2M | 420,263 |
| ROYCE & ASSOCIATES LP | New York, NY | $8.0M | 406,175 |
Showing 15 of 18 fund positions by value.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $7.8M | 0.95% |
| U.S. MICRO CAP PORTFOLIO | DFA INVESTMENT DIMENSIONS GROUP INC | $4.2M | 5.63% |
| VANGUARD RUSSELL 2000 INDEX FUND | VANGUARD SCOTTSDALE FUNDS | $3.5M | 1.98% |
| Royce Capital Fund - Small-Cap Portfolio | ROYCE CAPITAL FUND | $1.8M | 105.34% |
| Master Small Cap Index Series | Quantitative Master Series LLC | $1.2M | 2.41% |
| Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF | Goldman Sachs ETF Trust | $925K | 9.37% |
| Pear tree polaris small cap fund | Pear Tree Funds | $847K | 92.00% |
| ROYCE SMALL-CAP TRUST, INC. | ROYCE SMALL-CAP TRUST, INC. | $607K | 2.72% |
| CORNERCAP SMALL-CAP VALUE FUND | CORNERCAP GROUP OF FUNDS | $499K | 41.50% |
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $389K | 0.07% |
| BNY Mellon Smallcap Stock Index Fund | BNY MELLON INDEX FUNDS, INC. | $386K | 4.56% |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | VANGUARD INSTITUTIONAL INDEX FUNDS | $357K | 0.12% |
| DWS Small Cap Index VIP | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $98K | 2.34% |
| Federated Hermes Global Allocation Fund | Federated Hermes Global Allocation Fund | $50K | 1.70% |
| TIAA Separate Account VA-1 - Stock Index Account | TIAA Separate Account VA-1 | $15K | 0.12% |