TIM S.A. (NYSE: TIMB) VP named as reporting insider in Form 3

Rhea-AI Filing Summary

TIM S.A. executive Lacerda De Athayde Marcos Antonio Jr, who serves as VP, Brand and Communication, has filed a Form 3 as a reporting person for the company. The filing data provided shows no insider share purchases, sales, exercises, gifts, or other transactions.

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SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Lacerda De Athayde Marcos Antonio Jr

(Last) (First) (Middle)

JOAO CABRAL DE MELO NETO AVENUE

850 - SOUTH TOWER - 12TH FLOOR

(Street)

RIO DE JANEIRO BRAZIL 22775-057

(City) (State) (Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
TIM S.A. [ TIMB ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Brand and Communication

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24.1 - Power of Attorney

No securities are beneficially owned.

	/s/ Leonardo Caiaffo Ferreira, attorney-in-fact	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does this Form 3 filing show for TIMB?

The Form 3 filing shows that a TIM S.A. executive is now a reporting person. The data indicates no insider share purchases, sales, exercises, gifts, or other transactions, reflecting only the establishment of reporting status without disclosed trading activity in this record.

Who is the reporting person in this TIMB Form 3?

The reporting person is Lacerda De Athayde Marcos Antonio Jr. He is identified as an officer of TIM S.A. with the title VP, Brand and Communication, and is not listed as a director or ten percent owner in the provided filing data.

Are any insider stock transactions reported in this TIMB Form 3?

No insider stock transactions are reported in this Form 3. The transaction summary shows zero buys, zero sells, zero derivative exercises, zero gifts, and zero tax-withholding or restructuring entries, indicating no trading activity disclosed in this particular filing.

What insider role does the filer hold at TIM S.A. (TIMB)?

The filer is an officer of TIM S.A. with brand responsibilities. The filing lists Lacerda De Athayde Marcos Antonio Jr as VP, Brand and Communication, confirming his status as a company officer and a reporting person for insider ownership purposes.