William Yeung sold $487K of Energy Recovery (ERII)

Executed Sep 11 2025, disclosed Sep 15 2025, 4 days later.

Value, as filed

$487K

33,554 sh × $14.51

Executed

Sep 11 2025

the trade date, as filed

Disclosed

Sep 15 2025

4 days after the trade

Return, 21 sessionsiFrom the disclosed entry session; derived

–

purchases only

Returns are measured on stock purchases only.

The filer

WY William Yeung Chief Legal Officer profile →

William Yeung (Chief Legal Officer) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales, 1 filed past the two-business-day deadline), most often in ERII. The largest single filing was $106K of ERII (7,271 sh × $14.55, as filed), executed Jan 28.

The name

ERII ERII ERII · 18 filings in 24 months ticker → Insider filings, newest first→ View the original filing at www.sec.gov→

Other filings by William Yeung in ERII

ERIISALE Energy Recovery, Inc. $106K
7,271 sh × $14.55
Exec Jan 28
Filed Feb 3 · 5:30 PM ET † ERIISALE Energy Recovery, Inc. $101K
5,638 sh × $18.00
Exec Oct 24 2025
Filed Oct 27 2025 · 5:30 PM ET ERIISALE Energy Recovery, Inc. $233K
15,454 sh × $15.09
Exec Sep 18 2025
Filed Sep 22 2025 · 5:30 PM ET