Arkolith/Insider Trading/ERII/Form 4

Yeung William

Chief Legal OfficerEnergy Recovery, Inc. (ERII) · full profile →Form 4 · filed Oct 27, 2025
Net Selling
Open-Market Buys
$0
Open-Market Sells
$227K
Net Open-Market Flow
-$227K
Transactions
9
6 non-derivative · 3 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Oct 24, 2025Sell(S)4K$18.00$64K97K
Oct 24, 2025Option exercise(M)4K$7.50$26K101K
Oct 24, 2025Sell(S)6K$18.00$101K97K
Oct 24, 2025Option exercise(M)6K$10.19$57K103K
Oct 23, 2025Option exercise(M)4K$7.50$26K101K
Oct 23, 2025Sell(S)4K$17.50$62K97K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Oct 24, 2025Option exercise(M)4K$7.50$26K14K
Oct 24, 2025Option exercise(M)6K$10.19$57K16K
Oct 23, 2025Option exercise(M)4K$7.50$26K18K

Transaction Codes

S
Open-market sale
M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001677876-25-000011) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML