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Insider · CIK 0001677876

William Yeung

officer

Files at ERII (Energy Recovery, Inc.). First filing Sep 15, 2025, latest Oct 27, 2025.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 6
$0 bought, $1.1M sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

ERII: Energy Recovery, Inc.

ERIIOct 9, 2026 · close 6.84

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
$227k
12,698 shares
-13%+57% from low-10% from high
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
$60k
3,530 shares
-3%+50% from low-15% from high
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
$58k
3,530 shares
-3%+47% from low-16% from high
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
$57k
3,567 shares
-4%+39% from low-21% from high
0Weak
ERIIsell10b5-1
Energy Recovery, Inc.
$233k
15,454 shares
-14%+33% from low-24% from high
8Weak
ERIIsell10b5-1
Energy Recovery, Inc.
$487k
33,554 shares
-26%+28% from low-27% from high

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Oct 23, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+3,530$7.50$26k100,899Oct 27, 2025
Oct 23, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-3,530$17.50$62k97,369Oct 27, 2025
Oct 24, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+5,638$10.19$57k103,007Oct 27, 2025
Oct 24, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-5,638$18.00$101k97,369Oct 27, 2025
Oct 24, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+3,530$7.50$26k100,899Oct 27, 2025
Oct 24, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-3,530$18.00$64k97,369Oct 27, 2025
Oct 23, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-3,530$7.50$26k17,650Oct 27, 2025
Oct 24, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-5,638$10.19$57k16,229Oct 27, 2025
Oct 24, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-3,530$7.50$26k14,120Oct 27, 2025
Oct 20, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+3,530$7.50$26k100,899Oct 22, 2025
Oct 20, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-3,530$17.00$60k97,369Oct 22, 2025
Oct 20, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-3,530$7.50$26k21,180Oct 22, 2025
Oct 16, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+3,530$7.50$26k100,899Oct 17, 2025
Oct 16, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-3,530$16.50$58k97,369Oct 17, 2025
Oct 16, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-3,530$7.50$26k24,710Oct 17, 2025
Oct 3, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+1,038$7.50$7,78598,407Oct 7, 2025
Oct 3, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-1,038$16.00$17k97,369Oct 7, 2025
Oct 3, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+2,529$7.50$19k99,898Oct 7, 2025
Oct 3, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-2,529$16.00$40k97,369Oct 7, 2025
Oct 3, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-1,038$7.50$7,78530,769Oct 7, 2025
Oct 3, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-2,529$7.50$19k28,240Oct 7, 2025
Sep 18, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+15,454$8.95$138k112,823Sep 22, 2025
Sep 18, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-15,454$15.09$233k97,369Sep 22, 2025
Sep 18, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-15,454$8.95$138k0Sep 22, 2025
Sep 11, 2025ERII
Energy Recovery, Inc.
MOption exercise
Common Stock10b5-1
+30,877$8.95$276k130,923Sep 15, 2025
Sep 11, 2025ERII
Energy Recovery, Inc.
SOpen-market sale
Common Stock10b5-1
-33,554$14.51$487k97,369Sep 15, 2025
Sep 11, 2025ERII
Energy Recovery, Inc.
MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-30,877$8.95$276k15,454Sep 15, 2025
Jul 25, 2025ERII
Energy Recovery, Inc.
FTax withholding
Common Stock
-1,989$13.88$28k100,046Jul 29, 2025
Mar 10, 2025ERII
Energy Recovery, Inc.
FTax withholding
Common Stock
-944$16.37$15k102,035Mar 12, 2025
Feb 3, 2025ERII
Energy Recovery, Inc.
FTax withholding
Common Stock
-882$14.34$13k102,979Feb 5, 2025
Jan 30, 2025ERII
Energy Recovery, Inc.
FTax withholding
Common Stock
-698$14.33$10k104,488Feb 3, 2025
Jan 31, 2025ERII
Energy Recovery, Inc.
FTax withholding
Common Stock
-627$14.56$9,129103,861Feb 3, 2025
Jan 27, 2025ERII
Energy Recovery, Inc.
FTax withholding
Common Stock
-4,061$14.40$58k105,186Jan 29, 2025
Jan 23, 2025ERII
Energy Recovery, Inc.
AGrant or award
Common Stock
+23,956$0.00$0109,247Jan 27, 2025

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.

William Yeung: insider trades and track record | InsiderTell