SABESP (NYSE: SBS) CLO reports initial RSU awards and long-term vesting

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Form Type

Rhea-AI Filing Summary

COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP reported initial holdings for Chief Legal Officer Maria Alicia Lima Peralta on a Form 3. She holds restricted stock units (RSUs) convertible into 4,797 and 4,641 Common Shares, from grants dated April 29, 2025 and December 19, 2025. These RSUs vest in equal installments from May 1, 2026 through May 1, 2029, and from January 1, 2027 through January 1, 2030, subject to continued service.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Lima Peralta Maria Alicia

Role Chief Legal Officer

Type	Security	Shares	Price	Value
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--

Holdings After Transaction: Restricted Stock Units — 9,438 shares (Direct)

Footnotes (3)

F1. Each restricted stock unit ("RSU") represents the contingent right to receive one Common Share.
F2. Represents RSUs granted on April 29, 2025, which will vest pro rata on each of May 1, 2026, May 1, 2027, May 1, 2028 and May 1, 2029, subject to continued service as an officer of the issuer.
F3. Represents RSUs granted on December 19, 2025, which will vest pro rata on each of January 1, 2027, January 1, 2028, January 1, 2029 and January 1, 2030, subject to continued service as an officer of the issuer.

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Accepted by SEC EDGAR 03/19/2026 - 06:17 AM

FAQ

What does the SABESP (SBS) Form 3 filing by Maria Alicia Lima Peralta show?

The Form 3 shows Chief Legal Officer Maria Alicia Lima Peralta’s initial holdings of restricted stock units in SABESP. These RSUs convert into Common Shares on future vesting dates, documenting her existing equity-based compensation position with the company.

How many SABESP RSUs does Maria Alicia Lima Peralta report on Form 3?

She reports two blocks of restricted stock units linked to 4,797 and 4,641 underlying Common Shares. Each RSU represents the right to receive one Common Share, giving clear visibility into her equity-linked compensation exposure at SABESP.

When do the April 29, 2025 SABESP RSUs for Maria Alicia Lima Peralta vest?

Those RSUs vest pro rata on May 1, 2026, May 1, 2027, May 1, 2028 and May 1, 2029. Vesting is conditioned on her continued service as an officer, aligning long-term incentives with tenure at SABESP.

What is the vesting schedule for the December 19, 2025 SABESP RSU grant?

These RSUs vest pro rata on January 1, 2027, January 1, 2028, January 1, 2029 and January 1, 2030. The schedule extends her equity incentive horizon, again contingent on continued service as an officer of SABESP.

What does each SABESP restricted stock unit (RSU) represent in this Form 3?

Each RSU represents the contingent right to receive one SABESP Common Share. Actual share delivery depends on the RSUs vesting over the scheduled dates while Maria Alicia Lima Peralta remains an officer.

Does the SABESP (SBS) Form 3 indicate insider buying or selling activity?

No, the Form 3 is an initial ownership report, not a buy or sell notice. It records existing restricted stock unit grants and their vesting terms rather than new open-market or derivative transactions.

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^*

Lima Peralta Maria Alicia

(Last)

(First)

(Middle)

300 COSTA CARVALHO STREET

(Street)

SAO PAULO

05429-900

(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
COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP [ SBSP3 ]

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)
	Chief Legal Officer

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Restricted Stock Units	⁽²⁾	⁽²⁾	Common Shares	4,797	⁽¹⁾	D
Restricted Stock Units	⁽³⁾	⁽³⁾	Common Shares	4,641	⁽¹⁾	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents the contingent right to receive one Common Share.

2. Represents RSUs granted on April 29, 2025, which will vest pro rata on each of May 1, 2026, May 1, 2027, May 1, 2028 and May 1, 2029, subject to continued service as an officer of the issuer.

3. Represents RSUs granted on December 19, 2025, which will vest pro rata on each of January 1, 2027, January 1, 2028, January 1, 2029 and January 1, 2030, subject to continued service as an officer of the issuer.

Remarks:

Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Securities Exchange Act of 1934 (the "Act"), the reporting person's transactions in the issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act. Exhibit 24 - Power of Attorney.

	/s/ Beatriz Caroline de Sousa Daher, as attorney-in-fact for Maria Alicia Lima Peralta	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)

Source: View Original Filing on SEC EDGAR