Key facts
- This page summarizes William Yeung's Form 4 filing for Energy Recovery, Inc. (ERII).
- 2 reported transactions and 0 derivative rows are listed below.
- Accepted by SEC: 29 Jul 2026, 19:58.
William Yeung - 27 Jul 2026 Form 4 Insider Report for Energy Recovery, Inc. (ERII)
- Reporting relationship
- Chief Legal Officer
- Issuer ticker
- ERII
- Reported as of
- 27 Jul 2026
- Net transaction value
- -$17,531
- SEC form
- 4
- Accepted by SEC
- 29 Jul 2026, 19:58:46 UTC
- Prior SEC filing
- 19 Feb 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ William Yeung
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
William Yeung filed Form 4 for Energy Recovery, Inc. (ERII) on 29 Jul 2026.
Change
- Previous filing in this sequence was filed on 19 Feb 2026.
- Current net transaction value: -$17,531.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001677876
Primary reporting owner
Yeung William
- Relationship
- Chief Legal Officer
- Address
- C/O ENERGY RECOVERY, INC., 1717 DOOLITTLE DRIVE, SAN LEANDRO
- Signature
- /s/ William Yeung
- Signature date
- 29 Jul 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ERII
transaction
Common Stock
Tax liability
- Transaction value
- Shares
- -2,828
- Change %
- -2.7%
- Price
- $8.42*
- Shares after
- 101,339
- Date
- 27 Jul 2026
- Ownership
- Direct
- Footnotes
- F1
ERII
transaction
Common Stock
Sale
- Transaction value
- $17,531
- Shares
- -2,048
- Change %
- -2%
- Price
- $8.56
- Shares after
- 99,291
- Date
- 28 Jul 2026
- Ownership
- Direct
- Footnotes
- F2
ERII
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 5,568
- Date
- 27 Jul 2026
- Ownership
- Spouse
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).
Footnote F2
These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.