Great Lakes Dredge & Dock Corporation (GLDD) Ownership
GLDD ownership summary
as of September 13, 2026- Institutions
- 86.7% of shares outstanding
- Insiders
- 3.10% of shares outstanding
- Shares outstanding
- 66.8M
- Float
- 61.5M shares available to trade
- Short interest
- 5.06% 2.9M shares short
- Days to cover
- 1.61 short interest up 20.3% vs prior month
- Institutions 86.72%
- Insiders 3.10%
- Other investors 10.17%
GLDD top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 8.86% | 5.9M | $54.0M | −979,626 (−14.2%) | March 31, 2026 |
| 2 | Vanguard Capital Management, LLC | 4.28% | 2.9M | $26.0M | +2.9M (0.0%) | March 31, 2026 |
| 3 | Fidelity International Ltd | 4.00% | 2.7M | $24.4M | +2.7M (0.0%) | March 31, 2026 |
| 4 | Geode Capital Management, LLC | 2.51% | 1.7M | $15.3M | +47,755 (+2.9%) | March 31, 2026 |
| 5 | Balyasny Asset Management LLC | 2.44% | 1.6M | $14.8M | +1.6M (0.0%) | March 31, 2026 |
| 6 | State Street Corp | 2.36% | 1.6M | $14.4M | −11,658 (−0.7%) | March 31, 2026 |
| 7 | Qube Research & Technologies | 2.07% | 1.4M | $12.6M | +753,487 (+119.6%) | March 31, 2026 |
| 8 | Water Island Capital LLC | 1.89% | 1.3M | $11.5M | +1.3M (0.0%) | March 31, 2026 |
| 9 | ODDO BHF Asset Management SAS | 1.75% | 1.2M | $10.6M | +1.2M (0.0%) | March 31, 2026 |
| 10 | Arrowstreet Capital Limited Partnership | 1.58% | 1.1M | $9.6M | +258,151 (+32.4%) | March 31, 2026 |
| 11 | Sand Grove Capital Management LLP | 1.34% | 893K | $8.1M | +893,190 (0.0%) | March 31, 2026 |
| 12 | Omers Administration Corp | 1.29% | 864K | $7.9M | +864,000 (0.0%) | March 31, 2026 |
| 13 | The Goldman Sachs Group Inc | 1.29% | 859K | $7.8M | +223,901 (+35.3%) | March 31, 2026 |
| 14 | Cnh Partners, LLC | 1.09% | 731K | $6.7M | +730,615 (0.0%) | March 31, 2026 |
| 15 | Northern Trust Corp | 1.00% | 669K | $6.1M | +32,498 (+5.1%) | March 31, 2026 |
| 16 | Test Hedge Fund Mgmt | 0.96% | 643K | $5.9M | +642,867 (0.0%) | March 31, 2026 |
| 17 | London Company of Virginia | 0.88% | 584K | $5.3M | — | March 31, 2026 |
| 18 | Squarepoint Ops LLC | 0.88% | 584K | $5.3M | +201,742 (+52.7%) | March 31, 2026 |
| 19 | Prescott Group Capital Management LLC | 0.86% | 577K | $5.3M | — | March 31, 2026 |
| 20 | Charles Schwab Investment Management Inc | 0.84% | 558K | $5.1M | +3,664 (+0.7%) | March 31, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 16 holders added 14.2M shares and 2 cut 991K.
GLDD top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Global Equity+ Fund - F8 | 1.00% | 670K | $6.1M | +669,911 (0.0%) | March 31, 2026 |
| 2 | Fidelity NorthStar Sr F | 0.90% | 600K | $5.5M | +600,473 (0.0%) | March 31, 2026 |
| 3 | Fidelity Canadian Large Cap Sr B | 0.56% | 375K | $3.4M | +375,000 (0.0%) | March 31, 2026 |
| 4 | GAMCO Intl SICAV Merger Arbtrg I (USD) | 0.36% | 243K | $2.2M | −2,817 (−1.1%) | March 31, 2026 |
| 5 | Fidelity Canadian Large Cp Mlt Ast Bs O | 0.29% | 191K | $1.7M | +191,000 (0.0%) | March 31, 2026 |
| 6 | Extended Equity Market Fund E | 0.25% | 166K | $1.5M | −73 (−0.0%) | December 31, 2025 |
| 7 | Extended Equity Market Fund B | 0.25% | 166K | $1.5M | −73 (−0.0%) | December 31, 2025 |
| 8 | BSF Systematic US Eq Abs Ret A2 USD | 0.21% | 142K | $1.3M | +12,688 (+9.8%) | December 31, 2025 |
| 9 | U.S. Equity Small Cap Corporate Cl OF | 0.17% | 115K | $1.1M | — | December 31, 2025 |
| 10 | Fidelity Concntr Val Priv Pool Sr F | 0.16% | 106K | $964,176 | +105,721 (0.0%) | March 31, 2026 |
| 11 | Russell 2500 Index Non-Lendable Fund | 0.15% | 101K | $921,156 | −89 (−0.1%) | December 31, 2025 |
| 12 | Russell 2500 Index Fund | 0.15% | 101K | $921,156 | −89 (−0.1%) | December 31, 2025 |
| 13 | U.S. Equity Small Cap Pool A | 0.14% | 96K | $876,569 | — | December 31, 2025 |
| 14 | Russell 2000 Index Non-Lendable Fund E | 0.12% | 78K | $715,117 | +78,412 (0.0%) | March 31, 2026 |
| 15 | Xtrackers MSCI World Swap ETF 1C | 0.10% | 68K | $615,810 | +67,523 (0.0%) | December 31, 2025 |
| 16 | Fidelity NorthStar Balanced Sr F5 | 0.10% | 65K | $590,639 | +64,763 (0.0%) | March 31, 2026 |
| 17 | Hedgersel A | 0.07% | 48K | $442,128 | +48,479 (0.0%) | March 31, 2026 |
| 18 | Fidelity Monthly Income Series F | 0.06% | 38K | $345,903 | +37,928 (0.0%) | March 31, 2026 |
| 19 | Russell 3000 Equity Index Fund | 0.05% | 33K | $305,502 | −34 (−0.1%) | December 31, 2025 |
| 20 | NT Ext Eq Mkt Idx Fd DC Lending Tier 5 | 0.05% | 32K | $296,227 | +1,342 (+4.3%) | March 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
GLDD insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-12-10 | David Johanson | Sell | $13.96 | 2,100 | $29,316 |
| 2025-12-03 | David Johanson | Sell | $13.02 | 10,000 | $130,200 |
| 2025-06-03 | Ronald Steger | Sell | $11.59 | 5,000 | $57,950 |
| 2025-05-06 | Eleni Beyko | Sell | $10.26 | 22,579 | $231,661 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
GLDD shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns GLDD
Institutional investors own 86.7% of Great Lakes Dredge & Dock's shares and insiders 3.10%. The largest holder is BlackRock Inc with 8.86% of the shares (5.9M), as of March 31, 2026. Among the top 20 institutions, 16 added shares and 2 reduced their stake in the latest filings. Short interest is 5.06% of the float, or 1.61 days of average trading volume. The share count rose 11.6% since 2014.
Related: GLDD analyst forecast, GLDD key metrics. See the GLDD stock overview for the latest quote and news.
GLDD ownership FAQ
Who owns the most Great Lakes Dredge & Dock stock?
The largest shareholders of Great Lakes Dredge & Dock are BlackRock Inc (8.86%), Vanguard Capital Management, LLC (4.28%), Fidelity International Ltd (4.00%), Geode Capital Management, LLC (2.51%), Balyasny Asset Management LLC (2.44%).
What percentage of Great Lakes Dredge & Dock is owned by institutions?
Institutions hold 86.7% of Great Lakes Dredge & Dock's shares outstanding; insiders hold 3.10%.
Which funds own Great Lakes Dredge & Dock?
The largest fund holders of Great Lakes Dredge & Dock are Fidelity Global Equity+ Fund - F8 (1.00%), Fidelity NorthStar Sr F (0.90%), Fidelity Canadian Large Cap Sr B (0.56%), GAMCO Intl SICAV Merger Arbtrg I (USD) (0.36%), Fidelity Canadian Large Cp Mlt Ast Bs O (0.29%).
What is Great Lakes Dredge & Dock's short interest?
2.9M shares of Great Lakes Dredge & Dock were sold short, 5.06% of the float; at the average daily volume it would take 1.61 days to cover.
Are insiders buying or selling Great Lakes Dredge & Dock?
Of the latest 4 reported insider transactions in Great Lakes Dredge & Dock (since May 6, 2025), 0 were purchases and 4 were sales.
How many shares of Great Lakes Dredge & Dock are outstanding?
Great Lakes Dredge & Dock has 66.8M shares outstanding, of which 61.5M are in the public float.