Changes in Beneficial Ownership · 4

TIMKEN CO

Changes in Beneficial Ownership

Filed Sep 3, 2026Accepted Sep 3, 2026, 4:30 PM EDTFiling CIK 98362Accession 0001679130-26-000004

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Structured filing — 4

wk-form4_1788467450.xml

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Filing details

Report period: 2026-09-01
Issuer: TIMKEN CO
Issuer CIK: 0000098362
Trading symbol: TKR

Reporting owner 1

Name: BOLDEA LUCIAN
Reporting owner CIK: 0001679130
Relationship: Director · Officer
Officer title: President and CEO
Address: 4500 MOUNT PLEASANT ST. NW, NORTH CANTON, OH, 44720

Non-derivative transactions

Non-derivative transactions · 4 reported rows
Security	Transaction date	Code	Amount	A / D	Price (USD)	Owned after	Ownership
Common Stock^[F1]	2026-09-01	A · Form 4	30,286	A	0	30,286	D
Common Stock	2026-09-01	F · Form 4	12,750	D	119.78	17,536	D
Common Stock^[F2]	2026-09-01	A · Form 4	7,918	A	0	25,454	D
Common Stock	2026-09-01	F · Form 4	3,333	D	119.78	22,121	D

Table key

A · Form 4: Acquisition by grant, award or otherwise under Rule 16b-3(d)
A: Acquired
D: Direct
F · Form 4: Securities delivered or withheld for exercise price or tax liability under Rule 16b-3

Footnotes

F1: Represents vesting of 33% of the time-based restricted share units granted on September 1, 2025 and that vest over a three year period.↩ 1
F2: Represents vesting of 25% of the time-based restricted share units granted on September 1, 2025 and that vest over a four year period.↩ 1

Signature 1

Signed: /s/ Lucian Boldea
Date: 2026-09-03

Company context

The Timken Company (NYSE: TKR; www.timken.com), a global technology leader in engineered bearings and industrial motion, designs a growing portfolio of next-generation products for diverse industries. For more than 125 years, Timken has used its specialized expertise to innovate and create customer-centric solutions that increase reliability and efficiency. Timken posted $4.6 billion in sales in 2024 and employs approximately 19,000 people globally, operating from 45 countries.

Current securities

TKRNYSE · EQUITY · Current

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