GLDD
Great Lakes Dredge & Dock Corporation
Great Lakes Dredge & Dock Corporation insider trading
Great Lakes Dredge & Dock Corporation files with the SEC as a Heavy Construction Other Than Bldg Const - Contractors company headquartered in Oak Brook, IL. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.
From SEC filings
Recent GLDD insider transactions
Great Lakes Dredge & Dock Corporation's insiders made no open-market purchases or sales in the company's most recent Form 4 filings — those filings are share grants, option exercises and dispositions back to the issuer, which are compensation rather than decisions. That absence is itself worth knowing: nobody at GLDD spent or raised their own money in the market over this stretch.
SEC Form 4 data, Q3 2024 to Q2 2026
GLDD insider trading by quarter
No open-market purchase or sale by a Great Lakes Dredge & Dock Corporation insider appears in SEC's Form 4 data for trades between Jul 01, 2024 and Jun 30, 2026. Grants, option exercises, gifts and tax withholding are not counted as trades.
From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.
Great Lakes Dredge & Dock Corporation company record
- SEC industry classification
- Heavy Construction Other Than Bldg Const - Contractors
- Headquarters
- Oak Brook, IL
- Incorporated in
- NJ
- SEC Central Index Key
- 0000043365
Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Industrials sector shown above.
After insiders bought GLDD
What the stock actually did in the 90 days following each open-market purchase
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How to read GLDD insider activity
- Open-market purchase (code P)
- An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
- Grants and option exercises (codes A, M)
- Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
- Cluster buy
- Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.
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Questions
- Have GLDD insiders bought or sold stock recently?
- No open-market purchases or sales by Great Lakes Dredge & Dock Corporation insiders appear in the Form 4 filings scanned for this page. Grants, option exercises and tax withholding are not counted as trades.
- How much GLDD stock have insiders bought and sold in the last two years?
- None on the open market: no purchase or sale by a Great Lakes Dredge & Dock Corporation insider appears in SEC's Form 4 data for trades between Jul 01, 2024 and Jun 30, 2026. Grants, option exercises, gifts and tax withholding are not counted as trades.
- Where does GLDD insider trading data come from?
- From the Form 4 filings Great Lakes Dredge & Dock Corporation's officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.
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