Great Lakes Dredge & Dock (GLDD) - $17 Tender Offer From Saltchuk Resources

The Deal

Great Lakes Dredge & Dock Corporation (GLDD) — the largest provider of dredging services in the United States — is being acquired by Saltchuk Resources, a privately held Seattle-based maritime conglomerate, at $17.00 per share in cash. The tender offer, launched by Saltchuk's subsidiary Huron MergeCo on March 4, 2026, will be followed by a back-end merger under Section 251(h) of Delaware law, meaning no shareholder vote is required once a majority of shares are tendered. The deal values GLDD at approximately $1.5 billion in total, or roughly $1.2 billion in equity value.

The offer represents a 5.33% premium to GLDD's closing price on February 10, 2026 (the last trading day before the merger agreement was announced) and a 25% premium to the 90-day volume-weighted average price. Saltchuk's press release emphasized that the price represents a 5% premium to GLDD's all-time closing high — a framing designed to make the number look generous.

The Spread

At $16.93, GLDD is trading just $0.07 below the $17.00 offer price — a spread of approximately 0.4%. This is about as tight as merger arbitrage spreads get, and it tells you the market considers this deal virtually certain to close.

There is no financing condition — the deal is fully funded through committed financing from Bank of America, Wells Fargo, U.S. Bank, and PNC. There is no shareholder vote required. And the antitrust risk is minimal: Saltchuk operates in freight transportation and marine services (TOTE Maritime, Foss Maritime, Tropical Shipping) while GLDD is a dredging company with essentially no horizontal overlap.

For merger arbitrage investors, the math is simple: $0.07 of upside on a deal that is almost certain to close, against $17 of downside if it somehow doesn't. That is not a compelling risk-reward at current prices. The trade here was buying at or near the unaffected price of ~$16.14 back in early February.

Was $17.00 the Right Price?

The more interesting question for current shareholders is whether $17.00 was a fair price for GLDD. There is reason to be skeptical.

JPMorgan initiated coverage on GLDD on January 22, 2026 — less than three weeks before the deal was announced — with an Overweight rating and a $20 price target. Their thesis: a multi-year upcycle from record government infrastructure spending, offshore wind projects, and GLDD's competitive position as the only U.S. company with a Jones Act-compliant subsea rock installation vessel (the Acadia, delivered Q1 2026). After the deal was announced, JPMorgan switched to Neutral with a $17 target matching the offer price.

GLDD also just posted its best financial year ever. In 2025, the company reported record revenue of $888 million (up $126 million from 2024), record adjusted EBITDA of $171 million, and a total backlog of $888 million. The offshore wind backlog alone grew to $125 million from $45 million — nearly tripling year-over-year. The EBITDA multiple implied by the deal is 9.63x. Whether that's fair for a company at the beginning of a structural growth cycle in both infrastructure and offshore wind is a question shareholders should consider before tendering.

Saltchuk is a private, family-owned company with $5.6 billion in revenue and approximately 8,800 employees. Their public statements describe GLDD as a "permanent home" — this is not a financial buyer looking to flip. In July 2024, Saltchuk completed the $950 million acquisition of Overseas Shipholding Group. The GLDD deal is their second billion-dollar maritime acquisition in under two years.

The GLDD board's termination fee is approximately $37 million — about 3% of equity value. While there is no formal go-shop period, the merger agreement permits the board to consider unsolicited superior proposals (with Saltchuk retaining matching rights). No competing bids have emerged.

How to Tender

Shareholders who hold GLDD through a broker should contact their brokerage to initiate the tender. Brokers often impose internal deadlines one to three business days before the official expiration, so do not wait until the last day. MacKenzie Partners, Inc. is the information agent and can be reached at 800-322-2885. Broadridge Corporate Issuer Solutions is serving as depositary.

Tendering is treated as a sale for tax purposes. Your gain equals $17.00 minus your cost basis per share. If you held the shares for more than one year, you qualify for long-term capital gains rates. If under one year, you pay short-term rates (ordinary income). You will receive a 1099-B from your broker.

Key Terms

• Offer price: $17.00 per share, all cash, no financing condition
• Acquirer: Saltchuk Resources, Inc. (via subsidiary Huron MergeCo, Inc.)
• Shares outstanding: ~67.4 million
• Total transaction value: ~$1.5 billion ($1.2 billion equity)
• Minimum tender condition: At least one share more than a majority of outstanding shares must be tendered
• Merger structure: Two-step: tender offer followed by Section 251(h) back-end merger (no shareholder vote required)
• HSR antitrust clearance: Required. Saltchuk and GLDD operate in different segments of the maritime industry with minimal overlap — risk of a challenge appears low
• Termination fee (GLDD): ~$37 million payable to Saltchuk if the board changes its recommendation or accepts a superior proposal
• Information agent: MacKenzie Partners (800-322-2885)
• Depositary: Broadridge Corporate Issuer Solutions

Timeline

The tender offer may be extended up to four times in ten-business-day increments. The outside date for the merger agreement is June 10, 2026.

Risks

• The spread says it all. At 0.4%, you are being paid almost nothing to bear the remaining closing risk. The only reason to buy GLDD at $16.93 is if you believe it will close at $17.00 and you want the last nickel. For most investors, the risk-reward is not attractive at this price.
• Antitrust clearance. HSR clearance is required. While the overlap between Saltchuk and GLDD is minimal, the size of the transaction ($1.5 billion) means it will receive scrutiny. Any unexpected delays or requests for additional information would push the timeline out.
• Material adverse change. The merger agreement contains standard MAE provisions. A significant deterioration in GLDD's business or the broader market could give either party grounds to walk. Given GLDD's record performance, this risk appears low.
• No competing bid. With a ~$37 million break-up fee and Saltchuk's matching rights, the likelihood of a topping bid is low. No competing bids have emerged.
• Opportunity cost. Your capital earns 0.4% until the deal closes, which could take until Q2 2026. At current money market rates, you would earn more parking the cash elsewhere.

This analysis is for informational purposes only and does not constitute investment advice. Read the complete filing and consult your own advisors before making any decisions.