CoverageForm 410-K10-Q8-K13D13G13F

Great Lakes Dredge & Dock Corp

GLDDCIK 0001372020 · Every Form 4 filed by insiders at this issuer. See financials →

Annual report (10-K)

Latest 10-K/A filed Mar 9, 2026. Sentiment + YoY language diff vs prior year. Read sections →

Signal:NeutralFull-doc fallback
Full filing:tone 0.0006

Sentiment via Loughran-McDonald lexicon · YoY diff via Jaccard similarity + paragraph set difference.

Recent 8-K announcements

Per-item disclosure feed. Item 2.02 is the earnings release.

Top insiders

Most active reporters at Great Lakes Dredge & Dock Corp

NameRolesFilings
Petterson Lasse
OfficerDirector
26
Beyko Eleni
Officer
20
Shanahan Kathleen M
Director
20
Dickerson Lawrence R
Director
19
Hanson William H
Officer
19

Showing 1-5 of 19

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Top performers

Insiders ranked by realized 90-day signed return on their open-market trades at Great Lakes Dredge & Dock Corp. Minimum 3 scored trades. Returns are signed - a sale followed by a rally counts against the insider.

#InsiderTradesWin rateAvgMedianBestWorst
1Levenson Ryan6100%+34.0%+35.4%+40.9%+25.3%
2Petterson Lasse60%-33.1%-33.0%-26.8%-37.4%

All filings

271 Form 4 / 4-A filings, newest first

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