Costa Strauch Rafael 4

What Happened Rafael Costa Strauch, New Business & Projects Officer at Companhia de Saneamento Básico do Estado de São Paulo (SABESP, ticker SBSP3), had 7,922 restricted stock units (RSUs) vest on May 1, 2026 and converted into common shares. To cover tax withholding, 2,179 of those shares were surrendered at $6.69 per share, totaling $14,578. The RSUs represent granted awards that convert to shares upon vesting rather than a cash purchase or open-market sale.

Key Details

• Transaction date: May 1, 2026; Form 4 filed May 15, 2026.
• Vesting/conversion: 7,922 RSUs converted into shares (reported as derivative exercise/conversion, code M).
• Tax withholding: 2,179 shares withheld/disposed to cover taxes at $6.69/share, amount reported $14,578 (code F).
• Additional derivative entry: conversion/settlement of RSUs recorded at $0 exercise price (reflecting RSU-to-share settlement).
• Shares owned after the transaction: not disclosed in this filing.
• Footnote: These RSUs were part of a 31,685-RSU grant (April 29, 2025) that vests pro rata on May 1 of 2026–2029.
• Filing notes: amounts reflect recent dividend-equivalent accruals, a March 2026 capital increase and an April 2026 stock split. SABESP is a foreign private issuer; transactions are noted as exempt from Sections 16(b) and 16(c).

Context This is a routine vesting/settlement of RSUs with share withholding to satisfy tax obligations (a common, non-market-sale event). The M codes denote conversion/settlement of equity awards, and the F code indicates share withholding for taxes rather than a cash sale. For investors, such vesting signals issuance of shares to insiders per prior awards but does not, by itself, indicate a buy or sell decision in the open market.