Lucian Boldea - 01 Sep 2025 Form 4 Insider Report for TIMKEN CO (TKR)

Role: President and CEO, Director
Signature: /s/ Lucian Boldea
Issuer symbol: TKR
Transactions as of: 01 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 03 Sep 2025, 16:43:26 UTC
Previous filing: 02 Sep 2025
Next filing: 17 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
BOLDEA LUCIAN	President and CEO, Director	4500 MOUNT PLEASANT ST. NW, NORTH CANTON	/s/ Lucian Boldea	02 Sep 2025	0001679130

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TKR	Restricted Share Unit	Award	$0	+91,775		$0.000000	91,775	01 Sep 2025	Common Stock	91,775	$0.000000	Direct	F1
transaction	TKR	Restricted Share Unit	Award	$0	+31,675		$0.000000	31,675	01 Sep 2025	Common Stock	31,675	$0.000000	Direct	F2
transaction	TKR	Restricted Share Unit	Award	$0	+47,500		$0.000000	47,500	01 Sep 2025	Common Stock	47,500	$0.000000	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Grant of time-based restricted share units that vest 33% on September 1, 2026, 33% on September 1, 2027, and 34% on September 1, 2028.
F2	Grant of time-based restricted share units that vest 25% per year from the date of grant.
F3	Grant of performance-based restricted share units subject to certain performance criteria between January 1, 2025 and December 31, 2027.