InsiderTrades

Form 4 for ERII Energy Recovery, Inc.

Accepted 2025-09-15 00:00:00 ET · period of report 2025-09-11 · accession 0001421517-25-000122 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-09-15 2025-09-11 ERII Yeung William CLO S - Sale+OE $14.51 -33.6K 97.4K -26% -$486.9K
D 2025-09-15 2025-09-11 ERII Yeung William CLO M - OptEx $8.95 +30.9K 130.9K +31% +$276.3K
D 2025-09-15 2025-09-11 ERII Yeung William CLO M - OptEx $8.95 -30.9K 15.5K -67% -$276.3K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-09-11 S D 33,554 $14.51 97,369 D — — (F1) This amount represents the weighted average sales price of multiple trades ranging from $14.40 to $14.65 per share. The reporting person undertakes to provide the SEC Staff, Energy Recovery, Inc. or a shareholder of Energy Recovery, Inc. full information about the number of shares sold at each separate price upon request. (F2) These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
2 Common Common Stock 2025-09-11 M A 30,877 $8.95 130,923 D — —
3 Derivative Employee Stock Option (Right to Buy) 2025-09-11 M D 30,877 $8.95 15,454 D $8.95 · — to 2026-06-19 30,877 Common Stock (F3) 25% of the shares became vested and exercisable on the 1st anniversary of the vesting start date of 06/20/2016; Thereafter, the remaining 75%, will vest and become exercisable 1/36th per month. The options become fully vested and exercisable on 06/20/2020.