Harvey Partners, LLC

Position in GLDD — Great Lakes Dredge & Dock CORP

CIK 1406484 Tarrytown, NY

Back to GLDD Full portfolio

Position in GLDD

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$10,370,000

-$38,216,180 QoQ

Shares Held

610,000

-83.5% QoQ

Ownership

0.913%

of shares outstanding

% of Portfolio

0.87%

of 13F equity value

Holder Rank

#25

of 181 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in GLDD Over Time

Shares Held

Position Value (USD)

Position in Engineering & Construction

Industrials · as of Mar 31, 2026

Harvey Partners, LLC holds $20,759,400 across 2 Engineering & Construction names. GLDD ranks #2 (50.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	MTRX	Matrix Service Co	905,000	$10,389,400
2	GLDD	Great Lakes Dredge & Dock CORP This page	610,000	$10,370,000

All Filings in GLDD

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26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$10,370,000	610,000	0.0%	Shares	Sole	2026-05-15
2026-03-31	$10,370,000	610,000	-83.5%	Shares	Sole	2026-05-15
2025-12-31	$48,586,180	3,703,215	+0.1%	Shares	Sole	2026-02-17
2025-09-30	$44,369,606	3,700,551	-0.9%	Shares	Sole	2025-11-14
2025-06-30	$45,505,270	3,733,000	0.0%	Shares	Sole	2025-08-14
2025-03-31	$32,477,100	3,733,000	+0.8%	Shares	Sole	2025-05-15
2024-12-31	$41,818,160	3,704,000	+1.5%	Shares	Sole	2025-02-14
2024-09-30	$38,408,175	3,647,500	+9.8%	Shares	Sole	2024-11-14
2024-06-30	$29,167,160	3,322,000	-2.8%	Shares	Sole	2024-08-14
2024-03-31	$29,916,250	3,419,000	0.0%	Shares	Sole	2024-05-15
2023-12-31	$26,257,920	3,419,000	-0.3%	Shares	Sole	2024-02-14
2023-09-30	$27,337,100	3,430,000	+2.2%	Shares	Sole	2023-11-14
2023-06-30	$27,376,800	3,355,000	+0.4%	Shares	Sole	2023-08-14
2023-03-31	$18,136,200	3,340,000	-3.1%	Shares	Sole	2023-05-15
2022-12-31	$20,502,069	3,445,726	+26.9%	Shares	Sole	2023-02-14
2022-09-30	$20,587,280	2,716,000	+54.1%	Shares	Sole	2022-11-14
2022-06-30	$23,106,375	1,762,500	+54.6%	Shares	Sole	2022-08-15
2022-03-31	$15,994,200	1,140,000	+100.1%	Shares	Sole	2022-05-16
2021-12-31	$8,954,866	569,648	+35.6%	Shares	Sole	2022-02-14
2021-09-30	$6,337,800	420,000	0.0%	Shares	Sole	2021-11-15
2021-06-30	$6,136,200	420,000	-19.2%	Shares	Sole	2021-08-16
2021-03-31	$7,581,600	520,000	+1.5%	Shares	Sole	2021-05-17
2020-12-31	$6,749,625	512,500	+55.3%	Shares	Sole	2021-02-16
2020-09-30	$3,138,300	330,000	-22.4%	Shares	Sole	2020-11-16
2020-06-30	$3,935,500	425,000	-52.2%	Shares	Sole	2020-08-14
2020-03-31	$7,384,128	889,654	—	Shares	Sole	2020-06-23
No filing history on record for this holder in this stock.