GREAT LAKES DREDGE & DOCK CO COM is a security (CUSIP 390607109) tracked across SEC portfolio filings. 141 institutional managers reported $845.9M on Form 13F as of 2026-03-31; 14 registered fund positions totaling $27.8M via N-PORT as of 2026-03-31.
Showing 15 of 141 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| BlackRock, Inc. | New York, NY | $100.6M | 5,917,589 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $57.6M | 3,386,372 |
| VANGUARD GROUP INC | Valley Forge, PA | $52.3M | 3,987,334 |
| AMERICAN CENTURY COMPANIES INC | KANSAS CITY, MO | $51.1M | 3,006,419 |
| FIL Ltd | HAMILTON, D0 | $45.4M | 2,671,231 |
| TWO SIGMA INVESTMENTS, LP | New York, NY | $33.8M | 1,989,521 |
| GEODE CAPITAL MANAGEMENT, LLC | BOSTON, MA | $28.5M | 1,678,166 |
| Balyasny Asset Management L.P. | Chicago, IL | $27.7M | 1,626,990 |
| STATE STREET CORP | BOSTON, MA | $26.8M | 1,577,722 |
| Qube Research & Technologies Ltd | LONDON, X0 | $23.5M | 1,383,585 |
| WATER ISLAND CAPITAL LLC | New York, NY | $21.5M | 1,263,580 |
| ODDO BHF ASSET MANAGEMENT SAS | PARIS, I0 | $19.8M | 1,166,388 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $19.2M | 1,131,127 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $17.9M | 1,054,360 |
| Minerva Advisors LLC | BALA CYNWYD, PA | $17.5M | 1,029,703 |
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $13.0M | 1.59% |
| GDL Fund | GDL Fund | $5.3M | 462.50% |
| PGIM Jennison Small Company Fund | Prudential Jennison Small Co Fund, Inc. | $2.7M | 8.37% |
| The Gabelli ABC Fund | Gabelli Investor Funds Inc | $2.2M | 53.11% |
| Master Small Cap Index Series | Quantitative Master Series LLC | $1.8M | 3.79% |
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $636K | 0.11% |
| Enterprise Mergers and Acquisitions Fund | Gabelli 787 Fund, Inc. | $510K | 89.52% |
| WALTHAUSEN SMALL CAP VALUE FUND | Walthausen Funds | $483K | 116.79% |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | VANGUARD INSTITUTIONAL INDEX FUNDS | $453K | 0.15% |
| Blackstone Alternative Multi-Strategy Fund | Blackstone Alternative Investment Funds | $199K | 0.55% |
| Comstock Capital Value Fund | Comstock Funds, Inc. | $170K | 165.46% |
| DWS Small Cap Index VIP | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $157K | 3.75% |
| Vericimetry U.S. Small Cap Value Fund | VERICIMETRY FUNDS | $156K | 9.31% |
| TIAA Separate Account VA-1 - Stock Index Account | TIAA Separate Account VA-1 | $6K | 0.05% |