Great Lakes Dredge & Dock CORP (GLDD) Institutional Ownership

Institutions by Trading Activity

64,000,000Shares Outstanding

1,378,685Shares held by institutions

$18,350,297Value of institutional holdings

87.92%Institutional ownership %

-5.86%Shares Changed QoQ

150No. of institutional investors

According to SEC filings for the period ending December 2025, Great Lakes Dredge & Dock CORP (NASDAQ:GLDD) is held by 5 institutional firms.

These investors collectively held 0.2% of the company's total shares outstanding in December 2025, down from 80.5% in September 2025.
The company experienced a 14.01% quarterly change in institutional shares held, alongside a decrease of 97.41% in total owners annually.
Of these 5 institutional investors, 3 increased their holdings in Great Lakes Dredge & Dock, while 0 of them reduced positions, and 2 investors maintained their exposure.
This class of investors increased its holdings in Great Lakes Dredge & Dock to 112.92K shares for the 13F-cycle ending December 2025, up by 13.87K shares quarter on quarter, and down 55.47Mn shares year over year.
SG Americas Securities, LLC's holding of 105.85K shares as of December 31, 2025 makes it the primary institutional investor in Great Lakes Dredge & Dock, owning 0.16% of the stock.
Among the most significant buyers of Great Lakes Dredge & Dock during December 2025 were SG Americas Securities, LLC (13.41K), GAMMA Investing LLC (446), True Wealth Design, LLC (13).
The top 5 institutional holders of Great Lakes Dredge & Dock for the quarter ending December 2025 included SG Americas Securities, LLC (105.85K), GAMMA Investing LLC (3.34K), MassMutual Private Wealth & Trust, FSB (2.64K), Versant Capital Management, Inc (743), True Wealth Design, LLC (349).

1,378,685 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	30 Sep, 2025	6,937,356	152,598	2.25%	$83,178,899.00
DIMENSIONAL FUND ADVISORS LP	30 Sep, 2025	4,323,251	35,044	0.82%	$51,835,142.00
JENNISON ASSOCIATES LLC	30 Sep, 2025	4,274,268	-519,570	-10.84%	$51,248,475.00
VANGUARD GROUP INC	30 Sep, 2025	3,879,301	-5,789	-0.15%	$46,512,818.00
Harvey Partners, LLC	30 Sep, 2025	3,700,551	-32,449	-0.87%	$44,369,606.00
AMERICAN CENTURY COMPANIES INC	30 Sep, 2025	2,412,467	231,558	10.62%	$28,925,479.00
TCW GROUP INC	30 Sep, 2025	1,874,234	-211,500	-10.14%	$22,472,066.00
GEODE CAPITAL MANAGEMENT, LLC	30 Sep, 2025	1,634,491	-22,056	-1.33%	$19,599,917.00
STATE STREET CORP	30 Sep, 2025	1,617,353	-9,385	-0.58%	$19,392,062.00
Minerva Advisors LLC	30 Sep, 2025	1,389,807	0	0.00%	$16,663,786.00
MILLENNIUM MANAGEMENT LLC	30 Sep, 2025	1,146,135	797,411	228.67%	$13,742,159.00
JPMORGAN CHASE & CO	30 Sep, 2025	888,739	99,463	12.60%	$10,655,980.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	30 Sep, 2025	803,586	-37,554	-4.46%	$9,634,996.00
MORGAN STANLEY	30 Sep, 2025	797,452	4,370	0.55%	$9,561,448.00
NORTHERN TRUST CORP	30 Sep, 2025	695,157	4,116	0.60%	$8,334,932.00
LONDON CO OF VIRGINIA	30 Sep, 2025	584,424	-58,320	-9.07%	$7,007,244.00
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.	30 Sep, 2025	576,870	0	0.00%	$6,916,671.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	30 Sep, 2025	561,705	5,265	0.95%	$6,734,843.00
CenterBook Partners LP	30 Sep, 2025	518,331	167,149	47.60%	$6,214,789.00
PRIVATE MANAGEMENT GROUP INC	30 Sep, 2025	504,527	-149,023	-22.80%	$6,049,279.00

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