SEC Form 4 reporting owner

Yeung William

Yeung William has filed 9 Form 4 transactions reported between January 28, 2026 and July 28, 2026, as Chief Legal Officer of Energy Recovery, Inc..

Name as filed: Yeung William

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$157K

5 lines

Companies

with Form 4 filings

Latest transaction

Jul 28, 2026

transaction date

Roles and reported holdings

ERIIEnergy Recovery, Inc.
Jan 28, 2026 – Jul 28, 2026
Chief Legal Officer
Held directly99,291 sh as of Jul 28, 2026 · Form 4
24 months: $157K sold

Transaction history

All 9 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Jul 28, 2026	ERIIChief Legal Officer	Open-market saleCode S · direct	2,048	$8.56	$18K@ $8.56	99,291	Form 4
Jul 27, 2026	ERIIChief Legal Officer	Shares withheld for tax or exercise priceCode F · direct	2,828	$8.42	$24K@ $8.42	101,339	Form 4
Feb 17, 2026	ERIIChief Legal Officer	Grant or awardCode A · direct	25,959	—	—	104,167	Form 4
Feb 6, 2026	ERIIChief Legal Officer	Open-market saleCode S · direct	646	$15.14	$10K@ $15.14	78,208	Form 4
Feb 5, 2026	ERIIChief Legal Officer	Open-market saleCode S · direct	890	$14.59	$13K@ $14.59	78,854	Form 4
Feb 2, 2026	ERIIChief Legal Officer	Open-market saleCode S · direct	729	$14.46	$11K@ $14.46	79,744	Form 4
Jan 30, 2026	ERIIChief Legal Officer	Shares withheld for tax or exercise priceCode F · direct	8,622	$14.30	$123K@ $14.30	80,473	Form 4
Jan 30, 2026	ERIIChief Legal Officer	Shares withheld for tax or exercise priceCode F · direct	1,003	$14.65	$15K@ $14.65	89,095	Form 4
Jan 28, 2026	ERIIChief Legal Officer	Open-market saleCode S · direct	7,271	$14.55	$106K@ $14.55	90,098	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.