TIM S.A. (NYSE: TIMB) details management and insider share positions

Rhea-AI Filing Summary

TIM S.A. filed an update on management and related-party shareholdings. The report consolidates positions for the board of directors, executive management, fiscal council, technical or advisory bodies, controlling shareholder and people connected to management in TIM’s common registered shares.

One board-level category shows an opening balance of 517,217 common registered shares and a closing balance of 517,117 shares, reflecting a net movement of 100 shares during the month. Executive management shows an opening and closing balance of 285,321 common registered shares with no activity in the period. The fiscal council and technical or advisory bodies are reported with zero common registered shares. A separate line lists a closing balance quantity of 1,611,969,909 common registered shares, indicating a large common-share position in the consolidated table.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 6-K

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

Date of Report: January 9, 2026

Commission File Number: 001-39570

TIM S.A.
(Exact name of Registrant as specified in its Charter)

João Cabral de Melo Neto Avenue, 850 – North Tower – 12^th floor
22775-057 Rio de Janeiro, RJ, Brazil
(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 ☒

TIM S.A. CONSOLIDATED FORM Director and Related Party Transactions Group and Related Parties Security / Derivative Same Type / Class Total Shares 0,021622% 0,021622% Security / Derivative Security Description Deal Price Volume (R$) N/A Security / Derivative Same Type / Class Total Shares 0,021617% 0,021617% Group and Related Parties Security / Derivative Same Type / Class Total Shares 0,011928% 0,011928% Security / Derivative Security Description Deal Price Volume (R$) Shares Common Registered Compensation Plan Security / Derivative Same Type / Class Total Shares 0,011928% 0,011928% Group and Related Parties Security / Derivative Same Type / Class Total Shares 0,000000% 0,000000% Security / Derivative Security Description Deal Price Volume (R$) N/A - Security / Derivative Same Type / Class Total Shares 0,000000% 0,000000% Group and Related Parties Security / Derivative Same Type / Class Total Shares 0,000000% 0,000000% Security / Derivative Security Description Deal Price Volume (R$) N/A - Security / Derivative Same Type / Class Total Shares 0,000000% 0,000000% Group and Related Parties Security / Derivative Same Type / Class Total Shares 67,386500% 67,386500% Security / Derivative Security Description Deal Price Volume (R$) N/A - Security / Derivative Same Type / Class Total Shares 67,386500% 67,386500% Group and Related Parties Security / Derivative Same Type / Class Total Shares 0,000000% 0,000000% Security / Derivative Security Description Deal Price Volume (R$) N/A - Security / Derivative Same Type / Class Total Shares 0,000000% 0,000000% Intermediary Quantity N/A -100 N/A Intermediary Quantity N/A 0 Company Name: TIM S.A. ( ) Board of Directors (X) Executive Management ( ) Fiscal Council ( ) Technical or Advisory Bodies ( ) Controlling Shareholder ( ) People connected to the management Closing Balance % Share Security Description Quantity Common Registered 517.117 There were the following securities and derivatives operations, in accordance with CVM resolution 44/21 . Company Name: TIM S.A. (X) Board of Directors ( ) Executive Management ( ) Fiscal Council ( ) Technical or Advisory Bodies ( ) Controlling Shareholder ( ) People connected to the management Activity in the month Opening Balance % Share Security Description Quantity Common Registered 517.217 Closing Balance % Share Opening Balance Security Description Quantity Common Registered 285.321 Activity in the month N/A Security Description Quantity Common Registered 285.321 Company Name: TIM S.A. ( ) Board of Directors ( ) Executive Management (X) Fiscal Council ( ) Technical or Advisory Bodies ( ) Controlling Shareholder 0 N/A ( ) People connected to the management Opening Balance % Share Security Description Quantity Common Registered 0 Activity in the month Intermediary Quantity N/A Company Name: TIM S.A. ( ) Board of Directors ( ) Executive Management ( ) Fiscal Council (X) Technical or Advisory Bodies ( ) Controlling Shareholder ( ) People connected to the management Closing Balance % Share Security Description Quantity Common Registered 0 Closing Balance % Share Security Description Quantity Common Registered 0 Opening Balance % Share Security Description Quantity Common Registered 0 Activity in the month Intermediary Quantity N/A 0 N/A % Share Security Description Quantity* Common Registered 1.611.969.909 Closing Balance Company Name: TIM S.A. ( ) Board of Directors ( ) Executive Management ( ) Fiscal Council ( ) Technical or Advisory Bodies (X) Controlling Shareholder ( ) People connected to the management ( ) Technical or Advisory Bodies ( ) Controlling Shareholder (X) People connected to the management Security Description Quantity Common Registered 1.611.969.909 Company Name: TIM S.A. Activity in the month Intermediary Quantity N/A 0 N/A TIM S S.A. CONSOLIDATED FORM Common Registered 0 Activity in the month Intermediary Quantity N/A N/A Closing Balance % Share Security Description Quantity 0 Opening Balance % Share Security Description Quantity Common Registered 0 % Share Opening Balance ( ) Board of Directors ( ) Executive Management ( ) Fiscal Council #Classificado como Uso Interno

 

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.
Date: January 9, 2026		By:	/s/ Alberto Mario Griselli
			Alberto Mario Griselli
			Chief Executive Officer, Chief Financial Officer and Investor Relations Officer

FAQ

What does TIMB’s latest Form 6-K report for TIM S.A. cover?

The Form 6-K from TIM S.A. provides a consolidated view of shareholdings and activity in common registered shares for the board of directors, executive management, fiscal council, technical or advisory bodies, controlling shareholder and people connected to management.

Did TIMB report any shareholding changes for TIM S.A. directors?

Yes. One board-level category shows an opening balance of 517,217 common registered shares and a closing balance of 517,117 shares, indicating a net movement of 100 shares during the month.

Were there any changes in TIM S.A. executive management shareholdings reported by TIMB?

The table for executive management shows an opening and closing balance of 285,321 common registered shares, with no activity in the month and no change in the reported quantity.

What does the Form 6-K say about TIM S.A.’s fiscal council and advisory bodies shareholdings?

The fiscal council and technical or advisory bodies are reported with opening and closing balances of zero common registered shares, and no activity in the period.

What large common share quantity is disclosed in TIM S.A.’s consolidated form?

A consolidated line lists a closing balance quantity of 1,611,969,909 common registered shares in the table, reflecting a large common-share position included in the report.

Which regulations are referenced in TIM S.A.’s management share report filed by TIMB?

The disclosure notes that there were securities and derivatives operations in accordance with CVM Resolution 44/21, which governs certain market disclosure and trading rules in Brazil.