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CIK 0001421517 · Large accelerated filer

Energy Recovery, Inc.

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Ticker
ERII
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
010616867
Phone
(510) 483-7370
Business address
1717 DOOLITTLE DRIVE, SAN LEANDRO, CA, 94577
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-07-28 Clemente Rodney SVP, Water Sale −5,387 $8.56 $46K 108,301
2026-07-28 Yeung William Chief Legal Officer Sale −2,048 $8.56 $18K 99,291
2026-07-27 Clemente Rodney SVP, Water Shares withheld for taxes −2,320 $8.42 $20K 113,688
2026-07-27 Yeung William Chief Legal Officer Shares withheld for taxes −2,828 $8.42 $24K 101,339
2026-07-09 Mitchell John Joseph Director Grant or award +15,186 15,186
2026-07-09 Mitchell John Joseph Director Grant or award +16,797 16,797
2026-06-15 Sabol Colin R Director Purchase +11,180 $8.88 $99K 55,671
2026-06-15 BUEHLER ALEXANDER J Interim President and CEO Option exercise +15,327 $8.60 $132K 81,655
2026-06-15 BUEHLER ALEXANDER J Interim President and CEO Sale −14,900 $8.71 $130K 66,755
2026-06-15 BUEHLER ALEXANDER J Interim President and CEO Option exercise · Stock Option (Right to Buy) −15,327 $8.60 $132K 0
2026-06-04 TONDREAU PAMELA L. Director Grant or award +22,316 $8.29 $185K 60,844
2026-06-04 Hanstveit Arve Director Grant or award +18,094 $8.29 $150K 400,603
2026-06-04 Sabol Colin R Director Grant or award +18,094 $8.29 $150K 44,491
2026-06-04 Chow Joan Kai Director Grant or award +18,094 $8.29 $150K 52,116
2026-05-13 TONDREAU PAMELA L. Director Purchase +20,000 $8.34 $167K 37,362
2026-05-06 Ryan Aidan Interim CFO Grant or award +18,518 $11.61 $215K 34,133
2026-04-06 Hanstveit Arve Director Sale −2,419 $10.29 $25K 382,509
2026-04-02 Hanstveit Arve Director Sale −165,292 $10.14 $1.7M 384,928
2026-03-10 Hanstveit Arve Director Sale −25,000 $10.96 $274K 550,220
2026-03-06 Hanstveit Arve Director Sale −11,582 $10.62 $123K 575,220

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