TIM S.A. (NYSE: TIMB) VP B2B Fabio De Moura Costa files Form 3

Rhea-AI Filing Summary

TIM S.A. executive Fabio De Moura Costa, who serves as VP, B2B, has filed an initial insider ownership report on Form 3. This filing establishes him as a reporting person for TIMB under U.S. securities rules. The available data show no reported transactions or derivative positions in this filing.

Understanding Insider Trading Forms →

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Costa Fabio De Moura

(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, B2B

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 the TIMB Form 3 filed by Fabio De Moura Costa show?

The Form 3 shows that Fabio De Moura Costa, VP, B2B of TIM S.A., is now a reporting person for TIMB. The filing lists no transactions, derivative positions, or holding entries in the data provided.

Did Fabio De Moura Costa buy or sell TIMB shares in this Form 3?

No buy or sell activity is shown in the provided Form 3 data. The transaction summary reports zero buys, sells, exercises, gifts, tax withholdings, or restructuring transactions, indicating only an initial reporting status without listed trades.

What role does Fabio De Moura Costa hold at TIM S.A. in this Form 3?

The Form 3 identifies Fabio De Moura Costa as an officer of TIM S.A. with the title VP, B2B. This officer status is why he is classified as a reporting person for TIMB under insider reporting requirements.

Are there any derivative securities reported for TIMB in this Form 3?

No derivative securities are reported in the provided data. The derivativeSummary is empty, and the transaction summary shows zero derivative transactions or exercise activity, indicating no listed options or similar instruments in this filing.

Does the TIMB Form 3 for Fabio De Moura Costa indicate any net share changes?

The transaction summary indicates a netBuySellDirection of neutral with zero net shares. This means there are no reported net increases or decreases in TIMB share holdings associated with transactions in this specific Form 3 dataset.