Yeung William
Chief Legal Officer
Yeung William has filed 10 SEC Form 4 filings (27 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Jul 29, 2026.
On the most recent filing, Yeung William is listed as Chief Legal Officer at Energy Recovery, Inc. Inside the rolling window, Yeung William reported no open-market purchases and 5 open-market sales totaling $157K in ERII. The largest disclosed transaction in the window is a sale of 7,271 ERII shares on Jan 28, 2026, worth $106K.
Companies traded
Other insiders at ERII
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$157K
reported sales (SEC code S)
Companies
1
in the rolling window
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Oct 24, 2025 | ERII | Sale | $64K |
| Oct 24, 2025 | ERII | Sale | $101K |
| Oct 23, 2025 | ERII | Sale | $62K |
| Oct 20, 2025 | ERII | Sale | $60K |
| Oct 16, 2025 | ERII | Sale | $58K |
| Oct 3, 2025 | ERII | Sale | $40K |
| Oct 3, 2025 | ERII | Sale | $17K |
| Sep 18, 2025 | ERII | Sale | $233K |
| Sep 11, 2025 | ERII | Sale | $487K |
Frequently asked questions
How many SEC Form 4 filings has Yeung William made?
Yeung William has filed 10 SEC Form 4 filings (27 transaction rows) across 1 company since 2025.
Which companies does Yeung William trade?
Yeung William has filed SEC Form 4 disclosures for 1 company, including ERII.
When was Yeung William's most recent SEC Form 4 filing?
Yeung William's most recent SEC Form 4 filing on Tracefour is dated Jul 29, 2026.
What is Yeung William's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Yeung William is listed as Chief Legal Officer.
What is Yeung William's total buy and sell value in the current window?
Inside the rolling retention window, Yeung William bought $0 and sold $157K based on SEC Form 4 filings.
What was Yeung William's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 7,271 ERII shares on 2026-01-28, worth $106K, per SEC Form 4 filings.