Great Lakes Dredge & Dock CORP

CASTLEKEEP INVESTMENT ADVISORS LLC GLDD

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/10/2026

Shares

428,358

Value ($000)

5,620

Weight

2.5%

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	2/10/2026	5,620	2.5%	428,358	12/31/2025
2025 Q3	11/5/2025	5,450	2.5%	454,529	9/30/2025
2025 Q2	8/5/2025	5,817	2.8%	477,163	6/30/2025