# EDGAR Filing Document

**Accession Number:** 0001826168
**File Stem:** 0001292814-26-000511
**Filing Date:** 2026-2
**Character Count:** 10069
**Document Hash:** 74de4dfc866be99893e92f787a188262
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001292814-26-000511.hdr.sgml**: 20260226

**ACCESSION NUMBER**: 0001292814-26-000511

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260226

**DATE AS OF CHANGE**: 20260225

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TIM S.A.
- **CENTRAL INDEX KEY:** 0001826168
- **STANDARD INDUSTRIAL CLASSIFICATION:** TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** D5
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39570
- **FILM NUMBER:** 26680525

**BUSINESS ADDRESS:**
- **STREET 1:** JOAO CABRAL DE MELO NETO AVENUE
- **STREET 2:** 850 - NORTH TOWER - 12TH FLOOR
- **CITY:** RIO DE JANEIRO, RJ
- **STATE:** D5
- **ZIP:** 22775-057
- **BUSINESS PHONE:** (55) 21-4109-4167

**MAIL ADDRESS:**
- **STREET 1:** JOAO CABRAL DE MELO NETO AVENUE
- **STREET 2:** 850 - NORTH TOWER - 12TH FLOOR
- **CITY:** RIO DE JANEIRO, RJ
- **STATE:** D5
- **ZIP:** 22775-057

**UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION**<br> **WASHINGTON, D.C. 20549**

------

**FORM 6-K**

------

**REPORT OF FOREIGN PRIVATE ISSUER<br> PURSUANT TO RULE 13a-16 OR 15d-16<br> UNDER THE SECURITIES EXCHANGE ACT OF 1934**

**Date of Report: February 25, 2026**

**Commission File Number: 001-39570**

------

**TIM S.A.**<br> **(Exact name of Registrant as specified in its Charter)**

------

**João Cabral de Melo Neto Avenue, 850 – North Tower – 12<sup>th</sup> floor<br> 22775-057 Rio de Janeiro, RJ, Brazil**<br> **(Address of principal executive office)**

------

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1).

Yes ☐ No ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7).

Yes ☐ No ☒

![](image_001.jpg)

**TIM S.A.**

**Publicly-Held Company**

**CNPJ/MF 02.421.421/0001-11**

**NIRE 333.0032463-1**

**CALL NOTICE**

**ANNUAL AND EXTRAORDINARY GENERAL SHAREHOLDERS' MEETING**

The Shareholders of TIM S.A. ("Company") are called upon, as set forth in Section 124 of Law No. 6,404/1976, to attend the Company's Annual and Extraordinary Shareholders' Meeting to be held on March 31<sup>st</sup>, 2026, at 2:30 pm, at Avenida João Cabral de Mello Neto, nº 850, South Tower, 13<sup>th</sup> floor, Barra da Tijuca, in the City and State of Rio de Janeiro, in order to resolve on the following Agenda:

<u>**On Annual Shareholders' Meeting**</u>:

**(1)** To resolve on the management's report and the financial statements of the Company for the fiscal year ended on December 31<sup>st</sup>, 2025;

**(2)** To resolve on the management's proposal for the allocation of the results of the 2025 fiscal year and the distribution of dividends by the Company;

**(3)** To resolve on the classification of the candidate for the position of independent member of the Board of Directors according to the independence criteria of the *Novo Mercado* Regulations of B3 S.A. - Brasil Bolsa, Balcão ("*Novo Mercado* Regulations");

**(4)** To ratify the appointments of the Company's Board of Directors' Members, previously appointed at the Board of Directors' Meetings held on November 3<sup>rd</sup>, 2025 and February 25<sup>th</sup>, 2026;

**(5)** To resolve on the composition of the Fiscal Council of the Company;

**(6)** To elect the effective and alternate members of the Fiscal Council; and

**(7)** To resolve on the compensation proposal for the Company's management, members of Committees and members of the Fiscal Council of the Company for the 2026 fiscal year.

![](image_001.jpg)

<u>**On Extraordinary Shareholders' Meeting**</u>:

**(1)** To resolve on the proposal for the extension of the Cooperation and Support Agreement, through the execution of its 19<sup>th</sup> amendment, to be entered into between Telecom Italia S.p.A., on the one hand, and the Company, on the other hand; and

**(2)** To resolve on the reform and consolidation of the Company's By-laws.

**General Instructions:**

&nbsp;&nbsp;&nbsp;&nbsp;1. All documents and information regarding
the subjects to be analyzed and resolved on at the Shareholders' Meeting are at the Shareholders disposal at the Company's
head office, as well as on the websites www.tim.com.br/ri, www.cvm.gov.br, www.b3.com.br/pt_br/ and www.sec.gov.

&nbsp;&nbsp;&nbsp;&nbsp;2. The Ordinary and Extraordinary General Meeting
will be held exclusively in person, according with the practice adopted by the Company in its meetings, with a view to ensuring full
engagement, transparency and effectiveness in the resolutions. In this context, shareholders may participate in person or represented
by a duly constituted proxy, according to the provisions of Section 126 of Law No. 6,404/1976 and of §§ 1 and 2 of Section
12 of the Company's By-laws, as well as by distance voting ballot, according the detailed guidelines below:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a. **In-person**: The shareholder who chooses
to participate the General Meeting in person must express your intention by sending a copy of the identity document proving your identity
(ID card and CPF) by e-mail to ri@timbrasil.com.br within up to two (2) business days prior to the Shareholders' Meeting;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b. **By proxy**: The Shareholder to be represented
at the Shareholders' Meeting must send the respective supporting documentation by email to ri@timbrasil.com.br within up to two (2) business
days prior to the Shareholders' Meeting:

**Natural person:** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i. A power of attorney with specific powers,
signed in one's own hand, with a notarized signature, or electronically, using ICP-Brasil certification; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii. Identity card and CPF number of the proxy.

2.0 ![](image_001.jpg)

**Legal Entity:** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Power of attorney with specific powers,
signed by the individual, with a notarized signature, or electronically, using ICP-Brasil certification;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Last bylaws or consolidated articles of
association and corporate documents proving the legal representation of the legal entity shareholder or, if an investment fund, the bylaws
or consolidated articles of association of its administrator or manager, as the case may be, the corporate documents proving the administrator's
or manager's powers of representation and the investment fund's current regulations; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Identity card and CPF number of the proxy.

**Representative of Corporate Shareholder/Investment Fund:**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Last bylaws or consolidated articles of
association and corporate documents proving the legal representation of the legal entity shareholder or, if an investment fund, the bylaws
or consolidated articles of association of its administrator or manager, as the case may be, the corporate documents proving the administrator's
or manager's powers of representation and the current regulations of the investment fund; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Identity card and CPF number of the legal
representative.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c. **By distance voting ballot:** The Shareholder
that, pursuant to CVM Resolution No. 81/2022, chooses to participate by distance voting ballot, shall send the instructions for filing
the form to its respective custodian agents, the central depositary or the depositary institution of the Company's shares, or shall
send the form directly to the Company, as informed in the Voting Instructions, by e-mail to ri@timbrasil.com.br, or to the address indicated
below, and, in any case, the ballot must be received up to four (4) days prior to the Shareholders' Meeting, that is, by March
27<sup>th</sup>, 2026.

&nbsp;&nbsp;&nbsp;&nbsp;3. The distance voting ballot is available
at www.tim.com.br/ri, www.cvm.gov.br, www.b3.com.br/pt_br/ and www.sec.gov.

&nbsp;&nbsp;&nbsp;&nbsp;4. The documents mentioned herein, when sent
physically, must be forwarded as follows: TIM S.A., attention to the Investor Relations Officer, Mr. Vicente Ferreira, at Avenida João
Cabral de Mello Neto, 850, South Tower, 13<sup>th</sup> floor, Barra da Tijuca, in the City and State of Rio de Janeiro.

&nbsp;&nbsp;&nbsp;&nbsp;5. Any queries regarding this Call Notice may
be sent to the Investor Relations Department by e-mail to ri@timbrasil.com.br.

Rio de Janeiro (RJ), February 25<sup>th</sup>, 2026.

**Nicandro Durante**

Chairman of the Board of Directors

3.0 **SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | TIM S.A. | TIM S.A. |
| Date: February 25, 2026 | By: | /s/ Alberto Mario Griselli |
|  |  | Alberto Mario Griselli |
|  |  | Chief Executive Officer, Chief Financial Officer and Investor Relations Officer |

---