Ana Cristina Menezes Oliveira - 18 Mar 2026 Form 3 Insider Report for TIM S.A. (TIMB)

Role: Exhibit 24.1 - Power of Attorney Officer Title: VP of Customer Experience & Ombudsman
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, 13:49:13 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Oliveira Ana Cristina Menezes	Exhibit 24.1 - Power of Attorney Officer Title: VP of Customer Experience & Ombudsman	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	0002118631

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	TIMB	Common Shares						1,241	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	3,272		Direct	F1, F2

* 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 30, 2027.
F2	Each restricted share represents a contingent right to receive one common share minus withholding taxes.

Remarks:

Exhibit 24.1 - Power of Attorney Officer Title: VP of Customer Experience & Ombudsman