MKS Inc. SEC filings document operating results, capital-structure activity and governance matters for a Nasdaq-listed provider of technology solutions for semiconductor manufacturing, electronics and packaging, and specialty industrial applications. Form 8-K reports disclose results of operations and financial condition, financial guidance updates, material definitive agreements, debt refinancing activity, senior notes, credit facilities and registered common stock information.
The company’s proxy materials cover board and shareholder voting matters, executive compensation and related governance disclosures. Other current reports address officer transitions and compensation arrangements, providing formal records of management, governance and financing developments tied to MKS’s public-company structure.
MKS Inc executive James Alan Schreiner, EVP & COO, reported an open-market sale of 4,100 shares of common stock at $255.00 per share on February 24, 2026. After this transaction, he directly owns 23,401.962 shares of MKS Inc common stock.
MKS Inc. files its annual report describing a diversified technology business serving semiconductor, electronics and packaging, and specialty industrial markets. In 2025, these end-markets represented approximately 43%, 28% and 29% of net revenues, respectively, with international customers accounting for about 81% of total net revenues.
The company operates through three main divisions—Vacuum Solutions, Photonics Solutions and Materials Solutions—plus Global Service, and holds significant goodwill and intangibles of about $4.7 billion. MKS highlights substantial debt, including senior secured term loans, a $1.0 billion revolving facility, convertible notes and €1.0 billion of 2034 notes, along with prior impairments of $1.9 billion in 2023.
MKS details major risks: high leverage and restrictive covenants, supply chain and sole‑source dependencies, trade and regulatory exposure, a prior ransomware event in 2023 that cost about $15 million, and intense cyclicality in its core industries. The company also emphasizes global human‑capital programs, with roughly 10,300 workers and low voluntary turnover of 6% in 2025.
MKS Inc. director Gerald G. Colella reported open-market sales of company common stock held indirectly through The Gerald G. Colella 2019 Trust. The trust sold 10,000 shares on February 20, 2026 at a weighted average price of $252.8999 per share and another 10,000 shares on February 24, 2026 at a weighted average price of $253.9675 per share. After these sales, the trust held 40,017 shares, while Colella also held 8,216.927 shares directly.
MKS INC director CANNONE PETER III sold 1,250.0000 shares of common stock in an open-market transaction on February 20, 2026 at a weighted average price of $258.0596 per share. After the sale, he directly owned 8,362.0800 shares. The sale was executed in multiple trades between $258.040 and $258.285 per share.
MKS INC executive Eric Robert Taranto, EVP & GM, VSD, reported an open-market sale of 1,452.73 shares of common stock at $247.55 per share on February 20, 2026. After this transaction, he directly owned 20,012.6404 common shares.
MKS INC executive Henry David Philip reported an open-market sale of company stock. On this Form 4, he sold 2,000 shares of MKS INC common stock at a price of $261.5601 per share. After this transaction, he directly owns 18,841.368 shares of MKS INC common stock.
MKS INC vice president and chief accounting officer Michelle M. McCarthy reported selling a total of 1,466 shares of common stock in open-market transactions on February 20, 2026. The sales were executed at weighted average prices of $249.5674 and $250.3479 per share, in multiple trades within stated price ranges. Following these sales, her directly held common stock position reported in this filing was reduced to zero shares.
MKS Inc director Jacqueline F. Moloney reported an open-market sale of company stock. She sold 829 shares of MKS Inc common stock at a price of $247.55 per share on February 20, 2026. After this transaction, she still directly owns 10,733.304 shares of MKS Inc common stock.
MKS INC executive John Edward Williams, EVP & GM, PSD, reported an open-market sale of 2,042.625 shares of common stock on February 20, 2026 at a weighted average price of $256.4075 per share. After this sale, he directly owns 3,640.099 common shares. The sale was executed in multiple trades between $256.3902 and $257.150 per share.