GLDD Institutional Ownership & Shareholders
GREAT LAKES DREDGE & DOCK CO (GLDD) is currently held by 5 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $19.91M based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.
Minerva Advisors Llc is currently the largest disclosed institutional shareholder of GLDD tracked by InsiderSet, reporting ownership valued at approximately $17.50M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $17.50M, representing an estimated change of 0.00% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed GLDD value among the investors covered in this analysis. Major shareholders include Minerva Advisors Llc, Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc, Brooklyn Investment Group, and several other long-term asset managers with concentrated positions in GREAT LAKES DREDGE & DOCK CO (GLDD).
This page ranks the largest institutional GLDD shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
5
Total Reported Value
$19.91M
Largest Holder
Minerva Advisors Llc
Largest Position
$17.50M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
196
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Minerva Advisors Llc | 11.30% | 1,029,703 | $17,504,951 | $17,504,951 | $0 | 0.00% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 112,529 | $1,912,993 | $1,912,993 | $0 | 0.00% | |
| Brooklyn Investment Group | 0.02% | 28,861 | $490,637 | $490,637 | $0 | 0.00% | |
| Cwm, Llc | 0.00% | 106 | $1,802 | $1,802 | $0 | 0.00% | |
| Huntington National Bank | 0.00% | 1 | $17 | $17 | $0 | 0.00% |
Frequently asked questions about GLDD
Who are the largest institutional holders of GLDD?
The largest institutional holders of GLDD reported in the latest SEC Form 13F filings include Minerva Advisors Llc, Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc, Brooklyn Investment Group, Cwm, Llc, and Huntington National Bank. InsiderSet ranks institutional holders by their latest reported GLDD position.
What is GLDD institutional ownership?
This page tracks GLDD positions reported by institutional investment managers through SEC Form 13F. GREAT LAKES DREDGE & DOCK CO (GLDD) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own GLDD?
InsiderSet currently tracks 5 institutional managers reporting GLDD holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of GLDD shareholders.
How much GLDD stock do institutions own?
Institutional investment managers disclosed approximately $19.91M in GLDD holdings for Q1 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was GLDD institutional ownership last updated?
The latest GLDD institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended March 31, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional GLDD holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its GLDD position after the reporting date.
Are institutions buying or selling GLDD?
Institutional buying and selling can be analyzed by comparing GLDD positions across consecutive 13F reporting periods. InsiderSet's GLDD Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View GLDD ownership changes.
How has GLDD institutional ownership changed over time?
InsiderSet tracks GLDD institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.