Great Lakes Dredge & Dock CORP

ESSEX INVESTMENT MANAGEMENT CO LLC GLDD

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/13/2026

Shares

301,986

Value ($000)

3,962

Weight

0.6%

2025 Q2 - 2025 Q4 (3 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/13/2026	3,962	0.6%	301,986	12/31/2025
2025 Q3	11/6/2025	3,703	0.6%	308,809	9/30/2025
2025 Q2	8/12/2025	3,641	0.7%	298,682	6/30/2025