There is a long list of 143 institutional holders of GLDD within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of GLDD by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-GLDD table below, the initial column indicates the name of each top institutional holder of GLDD, with a link to that fund's top holdings. The next columns indicate the amount of GLDD stock held by each of the institutional holders of GLDD, followed by the GLDD position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	7,403,096	$56,856	12/31/2023
GLDD	7,403,096	$56,856	12/31/2023
Alliancebernstein L.P.	4,603,700	$35,356	12/31/2023
GLDD	4,603,700	$35,356	12/31/2023
Dimensional Fund Advisors LP	4,356,468	$33,458	12/31/2023
GLDD	4,356,468	$33,458	12/31/2023
Jennison Associates LLC	4,299,418	$33,020	12/31/2023
GLDD	4,299,418	$33,020	12/31/2023
Harvey Partners LLC	3,419,000	$26,258	12/31/2023
GLDD	3,419,000	$26,258	12/31/2023
Vanguard Group Inc.	3,364,913	$25,843	12/31/2023
GLDD	3,364,913	$25,843	12/31/2023
William Blair Investment Management LLC	2,446,572	$18,790	12/31/2023
GLDD	2,446,572	$18,790	12/31/2023
TCW Group Inc.	1,957,938	$15,037	12/31/2023
GLDD	1,957,938	$15,037	12/31/2023
State Street Corp	1,524,360	$11,707	12/31/2023
GLDD	1,524,360	$11,707	12/31/2023
Geode Capital Management LLC	1,445,713	$11,104	12/31/2023
GLDD	1,445,713	$11,104	12/31/2023
Minerva Advisors LLC	1,275,998	$9,800	12/31/2023
GLDD	1,275,998	$9,800	12/31/2023
Private Management Group Inc.	1,223,133	$9,394	12/31/2023
GLDD	1,223,133	$9,394	12/31/2023
Charles Schwab Investment Management Inc.	1,090,783	$8,377	12/31/2023
GLDD	1,090,783	$8,377	12/31/2023
Price Jennifer C.	1,033,874	$7,940	12/31/2023
GLDD	1,033,874	$7,940	12/31/2023
Kennedy Capital Management Inc.	845,522	$6,494	12/31/2023
GLDD	845,522	$6,494	12/31/2023
D. E. Shaw & Co. Inc.	833,099	$6,398	12/31/2023
GLDD	833,099	$6,398	12/31/2023
Cove Street Capital LLC	718,756	$5,520	12/31/2023
GLDD	718,756	$5,520	12/31/2023
Renaissance Technologies LLC	664,101	$5,100	12/31/2023
GLDD	664,101	$5,100	12/31/2023
Credit Suisse AG	643,885	$4,945	12/31/2023
GLDD	643,885	$4,945	12/31/2023
London Co. of Virginia	642,744	$4,936	12/31/2023
GLDD	642,744	$4,936	12/31/2023
Northern Trust Corp	618,586	$4,751	12/31/2023
GLDD	618,586	$4,751	12/31/2023
Prescott Group Capital Management L.L.C.	546,870	$4,200	12/31/2023
GLDD	546,870	$4,200	12/31/2023
Knights of Columbus Asset Advisors LLC	502,882	$3,862	12/31/2023
GLDD	502,882	$3,862	12/31/2023
Morgan Stanley	485,475	$3,728	12/31/2023
GLDD	485,475	$3,728	12/31/2023
Nuveen Asset Management LLC	474,550	$3,645	12/31/2023
GLDD	474,550	$3,645	12/31/2023
Wellington Management Group LLP	451,626	$3,468	12/31/2023
GLDD	451,626	$3,468	12/31/2023
Oppenheimer & Close LLC	394,600	$3,031	12/31/2023
GLDD	394,600	$3,031	12/31/2023
Acuitas Investments LLC	314,561	$2,416	12/31/2023
GLDD	314,561	$2,416	12/31/2023
Citadel Advisors LLC		$2,404	12/31/2023
GLDD	301,952	$2,319	12/31/2023
Call	14,000	$108	12/31/2023
Put	3,000	$23	12/31/2023
Essex Investment Management Co. LLC	298,028	$2,289	12/31/2023
GLDD	298,028	$2,289	12/31/2023
American Century Companies Inc.	289,516	$2,223	12/31/2023
GLDD	289,516	$2,223	12/31/2023
Two Sigma Advisers LP	287,667	$2,209	12/31/2023
GLDD	287,667	$2,209	12/31/2023
Invesco Ltd.	280,982	$2,158	12/31/2023
GLDD	280,982	$2,158	12/31/2023
Ameriprise Financial Inc.	280,844	$2,157	12/31/2023
GLDD	280,844	$2,157	12/31/2023
First Manhattan Co.	275,000	$2,112	12/31/2023
GLDD	275,000	$2,112	12/31/2023
Bank of New York Mellon Corp	249,519	$1,916	12/31/2023
GLDD	249,519	$1,916	12/31/2023
Goldman Sachs Group Inc.	233,164	$1,791	12/31/2023
GLDD	233,164	$1,791	12/31/2023
Susquehanna International Group LLP		$1,789	12/31/2023
GLDD	203,269	$1,561	12/31/2023
Call	29,700	$228	12/31/2023
Two Sigma Investments LP	217,408	$1,670	12/31/2023
GLDD	217,408	$1,670	12/31/2023
Wynnefield Capital Inc.	214,266	$1,646	12/31/2023
GLDD	214,266	$1,646	12/31/2023
CenterBook Partners LP	211,702	$1,626	12/31/2023
GLDD	211,702	$1,626	12/31/2023
Wittenberg Investment Management Inc.	200,324	$1,538	12/31/2023
GLDD	200,324	$1,538	12/31/2023
Cullen Capital Management LLC	194,619	$1,495	12/31/2023
GLDD	194,619	$1,495	12/31/2023
UBS Asset Management Americas Inc.	162,419	$1,247	12/31/2023
GLDD	162,419	$1,247	12/31/2023
Tudor Investment Corp Et Al	133,896	$1,028	12/31/2023
GLDD	133,896	$1,028	12/31/2023
Legato Capital Management LLC	116,829	$1,022	03/31/2024
GLDD	116,829	$1,022	03/31/2024
Victory Capital Management Inc.	132,800	$1,020	12/31/2023
GLDD	132,800	$1,020	12/31/2023
Swiss National Bank	131,000	$1,006	12/31/2023
GLDD	131,000	$1,006	12/31/2023
Royal Bank of Canada	128,530	$986	12/31/2023
GLDD	128,530	$986	12/31/2023
Davy Global Fund Management Ltd	128,048	$983	12/31/2023
GLDD	128,048	$983	12/31/2023