Renee Martel Donlan

CIK 2135522 · View on SEC EDGAR ↗

Insider

First SEC filing: June 4, 2026 · Latest: June 4, 2026

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 1 non-open-market transaction below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 17, 2026 MKSI A 954 4,781 Direct +24.93% Acquired (price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
Aug. 17, 2026 MKSI Restricted Stock Unit Common Stock (954) 954 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
June 4, 2026 MKSI Common Stock 9,471 Direct
June 4, 2026 MKSI Restricted Stock Unit→ Common Stock (416) 416 Direct
June 4, 2026 MKSI Restricted Stock Unit→ Common Stock (2,481) 2,481 Direct
June 4, 2026 MKSI Restricted Stock Unit→ Common Stock (929) 929 Direct