Transaction · 0001049502-26-000115

Donlan Renee Martel

Donlan Renee Martel, EVP, GC, CCO, reported a transaction classified as grant at MKS INC involving 954.044000 shares. Reported holdings after the transaction were 4780.571000 shares. A 10b5-1 reference was not detected in the stored filing text.

grantSEC transaction code AEVP, GC, CCO
MKSIMKS INC
Filing timeAug 18
Trade dateAug 17, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$300.24
Pre-filing
1mo ago +8.1%1w ago -2.6%1d ago +3.5%
Returns since
7d -10.4%30d -17.9%90d -17.9%180d -17.9%1y -17.9%

MKSI price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
MKSI since 2026-08-18Filed 17 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
grant
Code A
Identifier
0001049502-26-000115
Restricted Stock Unit
Transaction date
Aug 17, 2026
Filed Aug 18, 2026, 06:07 PM · 1d delay
Shares
954 sh
Price unknown
Estimated value
—
Computed from shares × price
Holdings after
4.78k sh
Direct

Filing warnings

Notes recorded with this filing
1 warning
missing priceThe filing did not provide a usable price per share.

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Derivative Transaction Direct Ownership
-14score
Filing-only score

-14

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

EVP, GC & CCO

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Inc.

  2. F2

    These RSUs vest in three equal annual installments commencing on August 17, 2027, provided that if, in any vesting year, August 17th is not a business day, such vesting shall occur on the next busines…

Original filing · 0001049502-26-000115
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