MKS Inc: enters definitive agreement to sell Ophir® Optics to TTM for $650,000,000

What happened

• The filing says that on Oct 19, 2026 MKS Inc announced it entered into a definitive agreement to sell its Ophir® Optics business to TTM Technologies, Inc. in an all-cash transaction for $650,000,000, subject to customary closing adjustments.
• The filing says the Transaction is subject to customary closing conditions, including certain regulatory approvals and certain governmental consents and permits, and is expected to close in the 2nd quarter of 2027. The press release announcing the Transaction is attached as Exhibit 99.1 and is incorporated by reference.

Key details

• Purchase price: $650,000,000, all cash, subject to customary closing adjustments.
• Buyer: TTM Technologies, Inc.
• Announcement date: Oct 19, 2026.
• Expected closing: 2nd quarter of 2027; transaction subject to regulatory approvals and governmental consents and permits.

Why it may matter

• This report was made under Item 8.01 (Other events), which covers the company announcement of the transaction, and Item 9.01 (Financial statements and exhibits), which includes the press release.
• This filing does not show why the insider traded or why the company acted.