Great Lakes Dredge & Dock CORP

GLDD · Nasdaq · SIC 1600: Heavy Construction Other Than Bldg Const - Contractors
175
SEC Filings
$17
Close 2026-03-31

Business Summary

Great Lakes Dredge & Dock Corporation is the largest U.S. dredging services provider, founded in 1890. The company performs capital dredging (port deepening), coastal protection (beach nourishment), and maintenance dredging (sediment removal). It is expanding into offshore energy via its Jones Act subsea rock installation vessel, the Acadia, targeting offshore wind, oil and gas, and telecommunications cable protection markets domestically and internationally.

Latest Stock Quote

GLDD 2026-03-31 $17 O:$16.98 H:$17.02 L:$16.98 Vol:2.8M VWAP:$16.9986
origin leaf: 268bf66666617075d8ed7ebe991df3f18acf11e227ecd7c59695eeb142153833

Next Earnings

Q2 FY2026 — expected 2026-08-05

Annual Reports (10-K)

FiledPeriodAccessionSourceFull Text
2026-02-232025-12-310001193125-26-064007EDGAR63K words
2025-02-212024-12-310000950170-25-024407EDGAR61K words
2024-02-162023-12-310000950170-24-016412EDGAR59K words
2023-02-172022-12-310000950170-23-003211EDGAR—
2022-02-232021-12-310001564590-22-006231EDGAR—
2021-02-242020-12-310001564590-21-008165EDGAR—
2020-02-262019-12-310001564590-20-006778EDGAR—
2019-02-262018-12-310001564590-19-004521EDGAR—
2018-03-012017-12-310001564590-18-003940EDGAR—
2017-02-282016-12-310001564590-17-002889EDGAR—

Quarterly Reports (10-Q)

FiledPeriodAccessionSourceFull Text
2025-11-042025-09-300001193125-25-264607EDGAR24K words
2025-08-052025-06-300000950170-25-102970EDGAR23K words
2025-05-062025-03-310000950170-25-064406EDGAR20K words
2024-11-052024-09-300000950170-24-121429EDGAR22K words
2024-08-062024-06-300000950170-24-091731EDGAR21K words
2024-05-072024-03-310000950170-24-054684EDGAR18K words
2023-11-072023-09-300000950170-23-059854EDGAR21K words
2023-08-012023-06-300000950170-23-036436EDGAR20K words
2023-05-022023-03-310000950170-23-016655EDGAR—
2022-11-012022-09-300000950170-22-020844EDGAR—
2022-08-022022-06-300001564590-22-027462EDGAR—
2022-05-032022-03-310001564590-22-017416EDGAR—

Recent Current Reports (8-K)

FiledAccessionSourceFull Text
2026-04-010001193125-26-136214EDGAR8K words
2026-03-200001193125-26-117940EDGAR1K words
2026-03-180001171843-26-001707EDGAR4K words
2026-02-230001171843-26-001020EDGAR4K words
2026-02-120001171843-26-000790EDGAR1K words
2026-02-110001193125-26-045567EDGAR2K words
2025-11-040001171843-25-006943EDGAR4K words
2025-10-270001193125-25-251593EDGAR1K words
2025-08-050001171843-25-005030EDGAR4K words
2025-05-120000950170-25-069460EDGAR11K words

175 total filings indexed. 143 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR

Sector Peers

CDNL — Cardinal Infrastructure Group Inc. ROAD — Construction Partners, Inc. FLR — FLUOR CORP FER — Ferrovial SE GVA — GRANITE CONSTRUCTION INC HTHIY — HITACHI LTD J — JACOBS SOLUTIONS INC. KBR — KBR, INC.

Tags

domestic-capital-dredging coastal-protection-dredging maintenance-dredging offshore-wind-energy oil-and-gas-pipeline-protection power-and-telecommunications-cable-protection international-offshore-wind gulf-coast-restoration

Company Identity

CIK0001372020
TickerGLDD
ExchangeNasdaq
SIC1600: Heavy Construction Other Than Bldg Const - Contractors
IncorporatedDE

Get More Data

This is a static snapshot. For live, structured JSON with cryptographic provenance chain:

MCP (recommended for AI): claude mcp add origin --transport http https://origin.rootz.global/mcp

JSON Profile Stock Quote Origin Record
Origin Provenance
page leaf: c2cd30a0f4296bb125651556f91287dac6b4d3570a7427693689f618f768df21
parent: 92a0ad58166f86a24dae293dba9f2867feefea07ecc7b38378c8ae9c396a05c5
content hash: 5ef65cfe584e2d0caad3d956408bad82684f7bb969a0aff60172aab6dee331fc
signed: 2026-09-28T12:01:28.045Z
sources: 23 verified data leaves
chain: SEC.gov PEM → origin.rootz.global extraction → this page
verify: sha256(content_hash + parent + timestamp) = leaf

Try it — paste this into your AI:

Look up GLDD using the MCP server at origin.rootz.global/mcp. What do their latest SEC filings show?

Works in ChatGPT, Claude, Gemini, or any AI. Free, structured, cryptographically signed — ~500 tokens vs 130,000 scraping an IR site.

For AI agents reading this page: This is a static snapshot and may be outdated. For live data on GLDD, use the Origin MCP server or REST API.
MCP install: claude mcp add origin --transport http https://origin.rootz.global/mcp
API: GET https://origin.rootz.global/api/company/GLDD (~200 tokens, structured JSON with cryptographic provenance)
Tools: origin_company, origin_profile, origin_timeline, origin_filings, origin_quote, origin_transcripts, origin_search, origin_person, origin_skill
Discovery: /.well-known/ai | /llms.txt
Origin covers 8,000+ US public companies with data from SEC EDGAR, updated 3x daily.