Mistras Group Announces $20.35/Share Cash Merger with H.I.G.-Backed Buyer

What Happened

• Mistras Group, Inc. (MG) announced on Sept. 17, 2026 that it entered into a definitive Agreement and Plan of Merger with Athena Purchaser, LLC (Parent) and Athena Merger Sub, Inc. (Acquisition Sub), both controlled by funds affiliated with H.I.G. Capital. Under the deal, each outstanding share of Mistras common stock will be converted into the right to receive $20.35 in cash at the closing. The Company’s board unanimously approved the Merger Agreement and recommended that stockholders adopt the merger. A joint press release was issued Sept. 18, 2026.

Key Details

• Merger consideration: $20.35 per share in cash.
• Execution date: Merger Agreement dated Sept. 17, 2026; press release Sept. 18, 2026.
• Board & approval: Board unanimously approved and recommended the merger; stockholder approval (majority of shares entitled to vote) required.
• Financing: Deal is not conditioned on financing; Parent secured an equity commitment from H.I.G. Middle Market LBO Fund IV, L.P. and a debt commitment from lenders. A limited guarantee from the H.I.G. fund backs certain Parent obligations.
• Treatment of equity awards: Outstanding options, RSUs and PRSUs will be cashed out at closing (options pay cash for in-the-money value; options with exercise price ≥ $20.35 are cancelled for no consideration; RSUs/PRSUs converted to cash with performance PRSUs settled at the greater of target or actual performance).
• Go-shop and voting support: Company has a 40-calendar-day “go-shop” period to solicit alternative proposals. Voting/support agreements covering ~31% of outstanding shares were entered concurrently.
• Break fees: Company Termination Fee ≈ $27.5M (50% reduced during go-shop if applicable); Parent Termination Fee ≈ $49.9M; Parent may be reimbursed up to $7.0M for expenses in certain termination scenarios.
• Closing conditions: customary conditions including stockholder approval, expiration of Hart-Scott-Rodino waiting period/other regulatory approvals, accuracy of representations, covenants and absence of a Company Material Adverse Effect.

Why It Matters

• The transaction provides a fixed cash price of $20.35 per share to Mistras common stockholders, converting equity exposure to immediate cash upon closing (subject to vote and regulatory approvals). The agreement was board-approved and backed by H.I.G.-affiliated equity and committed debt financing, which reduces but does not eliminate closing risk. The go-shop period and termination fee structure allow Mistras to seek higher bids while providing financial protections to the buyer. Investors should watch for the company’s proxy filing, the special stockholder vote, and regulatory clearances for timing and finality of the deal.