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. is asking shareholders at the 2026 Annual Meeting to elect three directors, expand its equity incentive capacity, and approve several key governance and compensation items. The meeting will be held on May 11, 2026 at the company’s Andover, Massachusetts headquarters.
A central proposal is approval of the Amended and Restated 2022 Stock Incentive Plan, which would increase the share reserve by 6,200,000 shares of common stock, raising the pool from 6,200,274 to 12,400,274 shares. The plan continues to emphasize full-value RSU awards, a fungible share pool, no option/SAR repricing without shareholder approval, and a $750,000 annual cap on non-employee director cash and equity compensation.
Shareholders will also vote on an advisory say-on-pay resolution, ratification of PricewaterhouseCoopers as auditor for 2026, and two competing proposals to lower the ownership threshold to call a special meeting—one company proposal to reduce it from 40% to 25% and a shareholder proposal to reduce it to 10%. The board recommends voting for the director slate, the amended equity plan, say-on-pay, auditor ratification, and the 25% threshold proposal, and against the 10% threshold proposal.
The Vanguard Group filed an amendment to its Schedule 13G/A for MKS Inc reporting 0 shares beneficially owned and 0% of the class. The filing explains an internal realignment completed on January 12, 2026 that caused certain Vanguard subsidiaries or business divisions to report ownership separately under SEC Release No. 34-39538.
The amendment states Vanguard no longer is deemed to beneficially own securities held by those subsidiaries or divisions and lists its reporting address and signing officer.
MKS Inc. is soliciting proxies for its 2026 Annual Meeting of Shareholders to be held on May 11, 2026.
The meeting agenda includes the election of three directors, the approval of an Amended and Restated 2022 Stock Incentive Plan to increase the share reserve by 6,200,000 shares to a total of 12,400,274 shares, advisory votes on executive compensation and a Company proposal to lower the special‑meeting threshold to 25%, ratification of PricewaterhouseCoopers LLP as independent auditor, and consideration of a shareholder proposal to lower the threshold to 10%. Shares outstanding were 67,321,698 as of March 3, 2026. The Board recommends voting FOR the director nominees and Proposals 2, 3, 4, and 5 and AGAINST Proposal 6.
MKS INC director Jacqueline F. Moloney reported an open-market sale of 340.107 shares of common stock on March 12, 2026 at a weighted average price of $213.7717 per share. The trades were executed in multiple transactions between $213.7716 and $214.015 per share.
After this sale, Moloney directly owns 10,393.197 shares of MKS INC common stock. The filing notes that detailed trade-by-trade pricing and share data are available upon request.
Registrant: A Form 144 was filed disclosing a proposed sale of 341 shares of common stock. The filing lists $72,705.24 as the aggregate amount and identifies Fidelity Brokerage Services LLC as the broker with a filing date of 03/12/2026.
The shares are described as issued upon restricted stock vesting on 05/06/2024 under a compensation arrangement. The filing also reports that Jacqueline F. Moloney sold 829 shares on 02/20/2026 for $205,218.95.
MKS INC executive Eric Robert Taranto, EVP & GM, VSD, reported an open-market sale of 4,567.879 shares of common stock on March 6, 2026 at a weighted average price of $220.522 per share. After this sale, he directly holds 15,444.7614 shares of MKS INC common stock.
The sale was executed in multiple trades at prices ranging from $220.3701 to $220.780, with the reported price representing the weighted average across those trades.
Eric Taranto reported a proposed sale of 1,453 common shares on 02/20/2026, with proceeds of $359,623.31 under a Form 144 notice. The filing lists prior acquisitions of common stock via restricted stock vesting and ESPP purchases on 04/13/2021, 05/28/2021, 11/30/2021, 02/15/2022, and 02/15/2024, with amounts 442, 89, 68, 819, and 3,150 shares respectively.
MKS INC director Elizabeth Mora reported an open-market sale of company stock. She sold 300 shares of common stock at a price of $239.44 per share. After this transaction, she continued to hold 18,663.394 shares of MKS INC common stock directly.
The sale was executed under a pre-arranged Rule 10b5-1 trading plan that she adopted on February 19, 2025, indicating the transaction was scheduled in advance rather than timed discretionarily.
Elizabeth A. Mora reported the sale of 300 common shares of MKSI. The Form 144 lists 300 common shares sold with a reported aggregate amount of $47,643.00, and notes the securities were related to restricted stock vesting on 05/06/2024. The filing is dated 03/02/2026.