Sabesp officer exercises 7,371 RSUs, covers taxes in shares

COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP Chief People Officer Josue Bressane Junior exercised 7,371 Restricted Stock Units into Common Shares.

Accepted by SEC EDGAR 05/15/2026 - 01:54 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP Chief People Officer Josue Bressane Junior exercised 7,371 Restricted Stock Units into Common Shares. To cover tax obligations, 2,027 shares were delivered at $6.69 per share, leaving 5,344 Common Shares held directly. The transactions relate to a 29,486-unit RSU grant from April 29, 2025, of which 7,371 units vested on May 1, 2026 and 22,113 RSUs remain outstanding.

Insider Trade Summary

7,371 shares exercised/converted

Exercise 3 txns

Insider Bressane Junior Josue

Role Chief People Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	7,371	$0.00	$0.00
Exercise	Common Shares	7,371	$0.00	$0.00
Exercise Price or Tax Liability	Common Shares	2,027	$6.69	$14K

Holdings After Transaction: Restricted Stock Units — 22,113 contracts (Direct); Common Shares — 5,344 shares (Direct)

Holdings Before and After: Restricted Stock Units, 29,484 to 22,113 contracts (Direct); Common Shares, 0 to 5,344 shares (Direct)

Footnotes (1)

1. F1. On April 29, 2025, the reporting person was granted an aggregate of 29,486 restricted stock units ("RSUs"), vesting 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. Each RSU represents the contingent right to receive one Common Share of the Issuer upon vesting.

Key Figures

RSUs exercised: 7,371 shares Tax-withholding shares: 2,027 shares at $6.69 Shares held after transaction: 5,344 Common Shares +2 more

5 metrics

RSUs exercised 7,371 shares Restricted Stock Units converted to Common Shares on May 1, 2026

Tax-withholding shares 2,027 shares at $6.69 Shares delivered to cover tax liability on May 1, 2026

Shares held after transaction 5,344 Common Shares Direct ownership following RSU vesting and tax withholding

Original RSU grant 29,486 RSUs Grant dated April 29, 2025 with four annual vesting dates

Remaining RSUs 22,113 RSUs Unvested units after first vesting tranche on May 1, 2026

Key Terms

Restricted Stock Units, tax-withholding disposition, derivative exercise/conversion, Common Shares

4 terms

Restricted Stock Units financial

"the reporting person was granted an aggregate of 29,486 restricted stock units ("RSUs"), vesting pro rata"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative exercise/conversion financial

"transaction_action": "derivative exercise/conversion""

Common Shares financial

"Each RSU represents the contingent right to receive one Common Share of the Issuer upon vesting."

Common shares are the basic units of ownership in a company that give holders a claim on profits and a right to vote on key matters, like electing the board. Think of them as membership cards in a club: they let you share in successes and losses, but in a bankruptcy or liquidation they are paid after creditors and preferred shareholders, so their value can swing more and matters for assessing risk and potential return.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did SABESP (SBS) report for its Chief People Officer?

Josue Bressane Junior exercised 7,371 Restricted Stock Units into Common Shares and delivered 2,027 shares to cover tax obligations. These transactions converted part of his equity compensation into stock without any open-market share purchases or sales.

Was there an open-market sale of SABESP (SBS) shares in this Form 4?

No open-market sale occurred. Shares marked with code F were delivered to cover tax liabilities at $6.69 per share, a tax-withholding disposition. This is an administrative step tied to vesting, not a discretionary market sale of SABESP stock.

How many SABESP (SBS) shares does the officer hold after these transactions?

After the transactions, the Chief People Officer directly holds 5,344 Common Shares. This figure reflects the 7,371 shares received from RSU vesting, minus 2,027 shares delivered back to the issuer to satisfy tax obligations on the vested award.

What RSU grant underlies the SABESP (SBS) Form 4 transactions?

The transactions relate to a grant of 29,486 Restricted Stock Units awarded on April 29, 2025. The RSUs vest pro rata on May 1 of 2026, 2027, 2028 and 2029, subject to continued service as an officer of SABESP.

How many SABESP (SBS) Restricted Stock Units remain after the vesting event?

Following the May 1, 2026 vesting and conversion of 7,371 RSUs, 22,113 Restricted Stock Units remain outstanding. Each RSU represents the contingent right to receive one SABESP Common Share upon future vesting dates, assuming continued service.

What does transaction code F mean in the SABESP (SBS) insider filing?

Transaction code F indicates payment of the exercise price or tax liability by delivering securities. Here, 2,027 SABESP Common Shares were delivered to satisfy tax obligations arising from RSU vesting, rather than being sold in the open market.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bressane Junior Josue

(Last) (First) (Middle)

300 COSTA CARVALHO STREET

(Street)

SAO PAULO 05429-900

(City) (State) (Zip)

BRAZIL

(Country)

2. Issuer Name and Ticker or Trading Symbol
COMPANHIA DE SANEAMENTO BASICO DO ESTADO DE SAO PAULO-SABESP [ SBSP3 ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief People Officer

2a. Foreign Trading Symbol
[SBS]

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Shares	05/01/2026		M		7,371	A	(1)	7,371	D
Common Shares	05/01/2026		F		2,027	D	$6.69	5,344	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	05/01/2026		M			7,371	(1)	(1)	Common Shares	7,371	$0	22,113	D

Explanation of Responses:

1. On April 29, 2025, the reporting person was granted an aggregate of 29,486 restricted stock units ("RSUs"), vesting 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. Each RSU represents the contingent right to receive one Common Share of the Issuer upon vesting.

Remarks:

All amounts reported in this Form 4 reflect certain recent events exempt from reporting under Section 16(a), namely (i) the receipt of rights to receive dividend equivalents (the accrual of which in this Form 4 upon vesting of the RSUs); (ii) the capital increase that occurred in March 2026; and (iii) the stock split approved by the Issuer's shareholders in April 2026. 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.

	/s/ Beatriz Caroline de Sousa Daher, as attorney-in-fact for Josue Bressane Junior	05/15/2026
	** 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 4 (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 4: SEC 1474 (03-26)