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Shuttingdown

Great Lakes Dredge & Dock CORP

Heavy Construction Other Than Bldg Const - Contractors · HOUSTON · TX

No longer listed

High confidence (85%)

Updated Sep 29, 2026, 12:03 AM

What is happening

Derived by rule set status-rules-2026.09.7

The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

Latest material event: Great Lakes Dredge & Dock CORP deregistered its securities (Apr 13, 2026)

Timeline

Every material event, newest first. History is never overwritten.

  1. Great Lakes Dredge & Dock CORP deregistered its securities

    Apr 13, 2026

    Registration withdrawn

    • SEC EDGAR — “15-12G 1 d84225d1512g.htm 15-12G 15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-33225 GREAT LAKES DREDGE & DOCK CORPORATION (Exact name of registrant as specified in its charter) 9811 Katy Freeway, Suite 1200 Houston, TX 77024 (346) 359-1010 (Address, including zip code, and telephone number, including area co…”

  2. Great Lakes Dredge & Dock CORP received a delisting notice from its exchange

    Apr 1, 2026

    Delisting notice received

    • SEC EDGAR — “Item 3.01, Item 5.01 and Item 5.03 of this Current Report on Form 8-K is incorporated herein by reference. Item 3.01. Notice of Delisting or Failure to Satisfy a Continuing Listing Rule or Standard; Transfer of Listing. On April 1, 2026, the Company (i) notified the Nasdaq Global Select Market ( Nasdaq ) of the consummation of the Merger and (ii) requested that Nasdaq (x) suspend trading of the Shares effective before the opening of trading on April 1, 2026, and (y) file with the SEC a Form 25 Notification of Removal from Listing and/or Registration to delist and deregister the Shares under Se…”

  3. Great Lakes Dredge & Dock CORP was delisted from its exchange

    Apr 1, 2026

    Delisting effective

    • SEC EDGAR — “X0203 0001354457 Nasdaq Stock Market LLC 0001372020 Great Lakes Dredge & Dock CORP 001-33225 9811 Katy Freeway, Suite 1200 Houston TX TEXAS 77024 +1 (346) 359-1010 Common Stock 17 CFR 240.12d2-2(a)(3) Tara Petta AVP 2026-04-01”

Company information

Founded
—
Employees (estimate)
—
Industry
Heavy Construction Other Than Bldg Const - Contractors
Subindustry
—
SEC CIK
0001372020
Website
—
LinkedIn
—
Headquarters
HOUSTON, TX
Also known as
Great Lakes Dredge & Dock Holdings Corp.
Legal entities
Great Lakes Dredge & Dock CORP

Sources

Every material source used to build this profile.

  • SEC Company Submissions (TIER 1 · UNVERIFIED)

    Great Lakes Dredge & Dock CORP — Heavy Construction Other Than Bldg Const - Contractors (SIC 1600) — HOUSTON, TX
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    15-12G 1 d84225d1512g.htm 15-12G 15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-33225 GREAT LAKES DREDGE & DOCK CORPORATION (Exact name of registrant as specified in its charter) 9811 Katy Freeway, Suite 1200 Houston, TX 77024 (346) 359-1010 (Address, including zip code, and telephone number, including area co…
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    X0203 0001354457 Nasdaq Stock Market LLC 0001372020 Great Lakes Dredge & Dock CORP 001-33225 9811 Katy Freeway, Suite 1200 Houston TX TEXAS 77024 +1 (346) 359-1010 Common Stock 17 CFR 240.12d2-2(a)(3) Tara Petta AVP 2026-04-01
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    Item 3.01, Item 5.01 and Item 5.03 of this Current Report on Form 8-K is incorporated herein by reference. Item 3.01. Notice of Delisting or Failure to Satisfy a Continuing Listing Rule or Standard; Transfer of Listing. On April 1, 2026, the Company (i) notified the Nasdaq Global Select Market ( Nasdaq ) of the consummation of the Merger and (ii) requested that Nasdaq (x) suspend trading of the Shares effective before the opening of trading on April 1, 2026, and (y) file with the SEC a Form 25 Notification of Removal from Listing and/or Registration to delist and deregister the Shares under Se…
    View source record

Status history

Every derived status, with the rule that produced it.

  • DISTRESS_SIGNAL → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:29 AM

    The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALLISTING_STANDARDS_WARNING · Sep 18, 2026, 01:14 AM

    An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:33 PM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 14, 2026, 04:46 PM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 04:24 AM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 04:24 AM

    An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.