Welcome to our dedicated page for Great Lakes Dredge & Dock SEC filings (Ticker: GLDD), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Great Lakes Dredge & Dock Corporation filings document the company's transition from a Nasdaq-listed public company to a deregistered issuer after its completed acquisition by Saltchuk Resources. The record includes Form 25 notification for removal of its common stock from Nasdaq listing and Form 15 certification to terminate registration under Section 12(g) and suspend Exchange Act reporting duties.
Its 8-K material-event reports describe the merger agreement, tender-offer completion, common-stock treatment, related governance and officer matters, and other capital-structure disclosures, including securities registered before delisting.
Great Lakes Dredge & Dock Corporation completed a cash tender offer and merger at $17.00 per share. The Offer expired one minute after 11:59 p.m. New York City time on March 31, 2026, and Purchaser accepted for payment 53,738,558 Shares validly tendered, representing 79.88% of issued and outstanding Shares as of the Expiration Time. Because the Minimum Condition and other Offer Conditions were satisfied, Purchaser paid the Offer Price for tendered Shares and, pursuant to a Certificate of Merger filed April 1, 2026, Purchaser was merged with and into GLDD under Section 251(h) of the DGCL, with GLDD surviving as a wholly owned subsidiary of Parent.
The common stock was delisted from the Nasdaq Stock Market, and Parent intends to terminate registration of the Shares under the Exchange Act and suspend reporting obligations.
Great Lakes Dredge & Dock Corp. has been removed from listing and/or registration on the Nasdaq Stock Market LLC via a Form 25 notification. The exchange certified compliance with 17 CFR 240.12d2-2 and the issuer complied with Nasdaq rules governing voluntary withdrawal.
Great Lakes Dredge & Dock Corporation was acquired by Huron MergeCo., Inc., a Saltchuk Resources subsidiary, under the previously disclosed Merger Agreement for $17.00 per share. The offer expired March 31, 2026, with 53,738,558 shares validly tendered (approximately 79.88% of outstanding shares), satisfying the Minimum Tender Condition. A Certificate of Merger filed April 1, 2026 effected a merger under Section 251(h) of the DGCL, with GLDD surviving as a wholly owned subsidiary of Saltchuk; shares converted into the right to receive the Merger Consideration, and GLDD common stock will be delisted from Nasdaq.
Great Lakes Dredge & Dock Corporation supplements its Schedule 14D-9 in connection with the $17.00 per share cash tender offer under the Merger Agreement dated February 10, 2026. The amendment updates director compensation figures for 2026 and adds a new restrictive covenant agreement tied to the retirement of Senior Vice President David Johanson, effective March 27, 2026March 20, 2026 and provides for continued vesting of his outstanding equity awards subject to its terms and the Merger Agreement, with certain non‑competition and non‑solicitation obligations remaining in effect through March 27, 2028.
The amendment also specifies expected changes in the form of payment for certain directors’ 2026 retainers and lists the Restrictive Covenant Agreement as Exhibit (e)(15).
Great Lakes Dredge & Dock Corp Schedule 13G/A: The Vanguard Group reports beneficial ownership of 0 shares of Common Stock, representing 0% of the class. The filing notes an internal Vanguard realignment effective January 12, 2026 and is signed on 03/27/2026.
Great Lakes Dredge & Dock Corp senior vice president of offshore energy, Eleni Beyko, reported a routine share disposition related to tax withholding. On this Form 4, 8,088 shares of common stock were withheld at $13.12 per share to cover tax obligations, rather than sold on the open market. Following this non‑market transaction, Beyko directly holds 125,807 shares of common stock.
Great Lakes Dredge & Dock Corp VP & CAO Ryan Bayer reported an acquisition of 10,126 shares of common stock on May 8, 2025, received as a grant or award at no stated purchase price. After this equity award, he directly holds 24,574 shares. The amended filing also corrects an administrative error by changing the vesting start date for the related restricted stock units from March 15, 2026 to the correct date of May 8, 2026.
BEYKO ELENI reported acquisition or exercise transactions in this Form 4 filing.
Great Lakes Dredge & Dock Corp reported a routine equity award for SVP – Offshore Energy Eleni Beyko. On May 8, 2025, she received a grant of 15,376 shares of Common Stock at no purchase price as a compensation award, bringing her direct holdings to 105,514 shares.
This Form 4/A amends an earlier filing to fix an administrative error in the vesting schedule for the related Restricted Stock Units. The original filing listed vesting as beginning on March 15, 2026; the corrected vesting start date is May 8, 2026.
Great Lakes Dredge & Dock Corp senior vice president of market development William H. Hanson reported an acquisition of 8,237 shares of common stock as a grant or award on May 8, 2025, at no purchase price. After this grant, he directly holds 68,977 shares. The amended filing also corrects an earlier administrative error by stating that the related restricted stock units begin vesting on May 8, 2026, rather than March 15, 2026.
Great Lakes Dredge & Dock Corp senior vice president David Johanson reported an amended insider transaction reflecting a stock-based compensation award. On May 8, 2025, he acquired 13,179 shares of common stock at a stated price of $0.00 per share, increasing his direct holdings to 104,063.2594 shares.
The filing clarifies the vesting schedule for the related Restricted Stock Units. An earlier report had shown vesting beginning on March 15, 2026, but the corrected disclosure states that vesting will instead begin on May 8, 2026. This change is described as an administrative correction to the prior report.