Mancini Michael S. 4

What Happened
Michael S. Mancini, Chief Financial Officer of Energy Recovery, Inc. (ERII), had 4,798 shares withheld to satisfy a tax obligation tied to the vesting of equity on January 30, 2026. The shares were valued at $14.30 each, for a total value of approximately $68,611. This was a tax-withholding disposition of vested shares (not an open-market sale or new purchase).

Key Details

• Transaction date: 2026-01-30; Price per share: $14.30; Total value: ~$68,611.
• Transaction code: F — payment of tax obligation by withholding securities (per footnote F1, Rule 16b-3(e)).
• Shares owned after the transaction: not disclosed in the provided filing excerpt.
• Filing date/accession: Form 4 filed 2026-02-03 (timely reported; no late filing indicated).
• Remarks: Exhibit 24 referenced.

Context
Withholding shares to cover taxes is a routine administrative action when stock awards vest. It is a disposition for reporting purposes but does not necessarily signal selling activity by the insider on the open market or a change in confidence in the company.