Maria Antonietta Russo - 18 Mar 2026 Form 3 Insider Report for TIM S.A. (TIMB)

Role: Exhibit 24.1 - Power of Attorney Officer Title: People, Culture & Organization Officer
Signature: /s/ Leonardo Caiaffo Ferreira, attorney-in-fact
Issuer symbol: TIMB
Transactions as of: 18 Mar 2026
Net transactions value: $0
Form type: 3
Filing time: 18 Mar 2026, 13:39:56 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Russo Maria Antonietta	Exhibit 24.1 - Power of Attorney Officer Title: People, Culture & Organization Officer	JOAO CABRAL DE MELO NETO AVENUE, 850 - SOUTH TOWER - 12TH FLOOR, RIO DE JANEIRO, BRAZIL	/s/ Leonardo Caiaffo Ferreira, attorney-in-fact	18 Mar 2026	0002117696

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	TIMB	Common Shares						47,274	18 Mar 2026	Direct

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
holding	TIMB	Restricted Shares							18 Mar 2026	Common Shares	18,327		Direct	F1, F2
holding	TIMB	Restricted Shares							18 Mar 2026	Common Shares	18,062		Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	These restricted shares vest on July 31, 2026.
F2	Each restricted share represents a contingent right to receive one common share minus withholding taxes.
F3	These restricted shares vest on July 30, 2027.

Remarks:

Exhibit 24.1 - Power of Attorney Officer Title: People, Culture & Organization Officer