---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-136214"
form_type: "8-K"
ticker: null
cik: "0001372020"
company_name: "Great Lakes Dredge & Dock CORP"
filed_at: "2026-04-01T23:59:59+00:00"
generated_at: "2026-05-15T07:57:20.061508+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.95
calibrated_materiality_score: 0.95
confidence: "high"
source: SEC EDGAR
---

# Saltchuk completes acquisition of Great Lakes Dredge & Dock at $17/share

## Summary
- 53,738,558 shares (79.88%) tendered; Merger Sub accepted all; merger effective April 1, 2026.
- Saltchuk purchased $258.1M (79.4%) of 5.25% Senior Notes due 2029 at $1,001.25 per $1,000.
- Company repaid and terminated its Second Amended Revolving Credit and Security Agreement; all liens released.
- Directors resigned; new directors from Saltchuk appointed; officers remain.
- Requested delisting from Nasdaq; will file Form 15 to terminate SEC registration.

## SEC filing metadata
- accession: 0001193125-26-136214
- form_type: 8-K
- cik: 0001372020
- company_name: Great Lakes Dredge & Dock CORP
- filed_at: 2026-04-01T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.95
- calibrated_materiality_score: 0.95
- confidence: high
- sec_items: 1.01, 1.02, 2.01, 3.01, 5.01, 5.03, 3.03, 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1372020/000119312526136214/0001193125-26-136214-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1372020/000119312526136214/d145321d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-136214
- JSON: https://secwatch.observer/filing/0001193125-26-136214.json
- Plain text: https://secwatch.observer/filing/0001193125-26-136214.txt

## Source-grounded claims
- claim_id: a716d3bd5c222fbe1d1dcdf46cf2792d9b4ead42
  claim: Great Lakes Dredge & Dock CORP: Bylaws of Merger Sub became bylaws of surviving corporation.
  evidence_excerpt: the bylaws of Merger Sub, as in effect as of the Effective Time, became the bylaws of the Surviving Corporation
  evidence_url: https://www.sec.gov/Archives/edgar/data/1372020/000119312526136214/0001193125-26-136214-index.htm
- claim_id: dbafc125ee6a75eeb7a2417e98590b5f502daca4
  claim: Great Lakes Dredge & Dock CORP: Certificate of incorporation amended and restated in connection with merger.
  evidence_excerpt: the certificate of incorporation of the Company was amended and restated in its entirety to be in the form of the certificate of incorporation of Merger Sub
  evidence_url: https://www.sec.gov/Archives/edgar/data/1372020/000119312526136214/0001193125-26-136214-index.htm
- claim_id: 56d78c3dbffebb8d08513e9ca9fee239bbe569aa
  claim: Great Lakes Dredge & Dock CORP underwent a change of control involving Saltchuk Resources, Inc. for $17.00 per Share (closed 2026-04-01).
  evidence_excerpt: Securities and Exchange Commission (the “SEC”) on February 11, 2026, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Saltchuk Resources, Inc., a Washington corporation (“Saltchuk”), and Huron MergeCo., Inc., a Delaware corporation and a wholly owned subsidiary of Saltchuk (“Merger Sub”), on February 10, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1372020/000119312526136214/0001193125-26-136214-index.htm
- claim_id: 87961e5c30910cde0ca284150248c73752d6f3bf
  claim: Great Lakes Dredge & Dock CORP amended Supplemental Indenture with Computershare Trust Company, N.A., as trustee (effective 2026-04-01).
  evidence_excerpt: On April 1, 2026, the Company, the subsidiary guarantors party to the Indenture and the Trustee entered into a Supplemental Indenture to the Indenture (the “Supplemental Indenture”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1372020/000119312526136214/0001193125-26-136214-index.htm
- claim_id: f26ec88579f9c32dc0ccabf05f8c6f7d713a561d
  claim: Great Lakes Dredge & Dock CORP terminated Second Amended and Restated Revolving Credit and Security Agreement with PNC Bank, National Association, as administrative agent (effective 2026-04-01).
  evidence_excerpt: On April 1, the Company repaid in full all outstanding borrowings under its Second Amended and Restated Revolving Credit and Security Agreement, dated as of July 29, 2022, by and among the Company, certain subsidiaries of the Company party thereto, the lenders party thereto and PNC Bank, National Association, as administrative agent (as amended, modified, supplemented or restated through the date hereof, the “Credit Agreement”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1372020/000119312526136214/0001193125-26-136214-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.