William Yeung sold $487k of ERII
Chief Legal Officer at Energy Recovery, Inc.. 33,554 shares at an average of $14.51, traded Sep 11, 2025, filed Sep 15, 2025.
Score components
- +15RoleOfficer
- +18Trade size$487k at market
- +10Share of holdings soldSold 26% of holdings
- 0ClusterNo other insider selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001421517-25-000122, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 11, 2025 | MOption exercise Common Stock10b5-1 | +30,877 | $8.95 | $276k | 130,923 | Sep 15, 2025 |
| Sep 11, 2025 | SOpen-market sale Common Stock10b5-1 | -33,554 | $14.51 | $487k | 97,369 | Sep 15, 2025 |
| Sep 11, 2025 | MOption exercise Employee Stock Option (Right to Buy)derivative10b5-1 | -30,877 | $8.95 | $276k | 15,454 | Sep 15, 2025 |
Related signals
Other insiders at Energy Recovery, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 43Moderate | Energy Recovery, Inc. | Arve Hanstveit director | $274k 25,000 shares | -4% | |
| 48Moderate | Energy Recovery, Inc. | Arve Hanstveit director | $534k 50,000 shares | -8% | |
| 27Weak | Energy Recovery, Inc. | Rodney Clemente SVP, Water | $218k 20,568 shares | -15% | |
| 30Weak | Energy Recovery, Inc. | Natarajan Ramanan Chief Technology Officer | $2,875 272 shares | -1% | |
| 3Weak | Energy Recovery, Inc. | Rodney Clemente SVP, Water | $11k 724 shares | -1% | |
| 3Weak | Energy Recovery, Inc. | William Yeung Chief Legal Officer | $23k 1,536 shares | -2% | |
| 13Weak | Energy Recovery, Inc. | William Yeung Chief Legal Officer | $116k 8,000 shares | -8% | |
| 32Weak | ERIIsell Energy Recovery, Inc. | Arve Hanstveit director | $445k 30,000 shares | -5% | |
| 0Weak | Energy Recovery, Inc. | William Yeung Chief Legal Officer | $227k 12,698 shares | -13% | |
| 0Weak | Energy Recovery, Inc. | William Yeung Chief Legal Officer | $60k 3,530 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.