MERCURY SYS INC COM is a security (CUSIP 589378108) tracked across SEC portfolio filings. 384 institutional managers reported $4.1B on Form 13F as of 2026-06-30; 40 registered fund positions totaling $360.7M via N-PORT as of 2026-05-31.
Showing 15 of 384 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| BlackRock, Inc. | New York, NY | $650.4M | 8,920,325 |
| VANGUARD GROUP INC | Valley Forge, PA | $411.2M | 5,632,049 |
| STATE STREET CORP | BOSTON, MA | $281.8M | 3,865,719 |
| Conestoga Capital Advisors, LLC | WAYNE, PA | $181.9M | 1,487,191 |
| Fisher Asset Management, LLC | PLANO, TX | $115.5M | 944,069 |
| GEODE CAPITAL MANAGEMENT, LLC | BOSTON, MA | $111.3M | 1,525,716 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $89.5M | 1,227,975 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $87.6M | 1,201,112 |
| FIRST TRUST ADVISORS LP | Wheaton, IL | $84.6M | 1,160,775 |
| EMERALD ADVISERS, LLC | LEOLA, PA | $78.1M | 638,682 |
| SEGALL BRYANT & HAMILL, LLC | CHICAGO, IL | $68.2M | 934,824 |
| NEUBERGER BERMAN GROUP LLC | NEW YORK, NY | $66.3M | 910,418 |
| FMR LLC | BOSTON, MA | $65.9M | 903,668 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | CENTRAL, K3 | $62.7M | 859,447 |
| RAYMOND JAMES FINANCIAL INC | ST. PETERSBURG, FL | $56.3M | 794,029 |
Showing 15 of 40 fund positions by value.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Select Fund | American Century Mutual Funds, Inc. | $49.5M | 77.47% |
| T. Rowe Price New Horizons Fund, Inc. | T. ROWE PRICE NEW HORIZONS FUND, INC. | $46.2M | 36.16% |
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $43.0M | 5.27% |
| T. Rowe Price Small-Cap Stock Fund, Inc. | T. ROWE PRICE SMALL-CAP STOCK FUND, INC. | $31.8M | 39.44% |
| VANGUARD RUSSELL 2000 INDEX FUND | VANGUARD SCOTTSDALE FUNDS | $31.2M | 17.81% |
| LORD ABBETT DEVELOPING GROWTH FUND INC | LORD ABBETT DEVELOPING GROWTH FUND, INC. | $25.7M | 115.60% |
| T. Rowe Price Small-Cap Value Fund, Inc. | T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | $21.6M | 23.46% |
| PGIM Jennison Small Company Fund | Prudential Jennison Small Co Fund, Inc. | $17.8M | 55.95% |
| Emerald Growth Fund | FINANCIAL INVESTORS TRUST | $17.8M | 126.22% |
| T. Rowe Price Institutional Small-Cap Stock Fund | T. Rowe Price Equity Funds, Inc. | $17.3M | 39.99% |
| CONESTOGA SMID CAP FUND | Conestoga Funds | $14.5M | 291.59% |
| U.S. MICRO CAP PORTFOLIO | DFA INVESTMENT DIMENSIONS GROUP INC | $7.2M | 9.60% |
| Master Small Cap Index Series | Quantitative Master Series LLC | $6.2M | 12.93% |
| Optimum Small-Mid Cap Growth Fund | Optimum Fund Trust | $3.2M | 42.78% |
| Columbia Variable Portfolio - Small Company Growth Fund | COLUMBIA FUNDS VARIABLE INSURANCE TRUST | $2.9M | 135.47% |