Robert Yu Lang Mao - Nov 8, 2023 Form 4 Insider Report for Energy Recovery, Inc. (ERII)

Role
Director
Signature
/s/ William Yeung, Attorney-in-Fact for Robert Yu Lang Mao
Stock symbol
ERII
Transactions as of
Nov 8, 2023
Transactions value $
$595,955
Form type
4
Date filed
11/13/2023, 05:01 PM
Previous filing
Nov 8, 2023
Next filing
Mar 4, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ERII Common Stock Options Exercise $208K +26.7K +25.49% $7.79 131K Nov 8, 2023 Direct
transaction ERII Common Stock Options Exercise $300K +38.5K +29.36% $7.79 170K Nov 8, 2023 Direct
transaction ERII Common Stock Options Exercise $88K +6.31K +3.71% $13.96 176K Nov 8, 2023 Direct
holding ERII Common Stock 96.2K Nov 8, 2023 The Robert and Iran Mao Rev Trust DTD 04-06-2006

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ERII Employee Stock Option (Right to Buy) Options Exercise $0 -26.7K -44.98% $0.00 32.6K Nov 8, 2023 Common Stock 26.7K $7.79 Direct F1
transaction ERII Employee Stock Option (Right to Buy) Options Exercise $0 -38.5K -84.09% $0.00 7.29K Nov 8, 2023 Common Stock 38.5K $7.79 Direct F2
transaction ERII Employee Stock Option (Right to Buy) Options Exercise $0 -6.31K -8.99% $0.00 63.8K Nov 8, 2023 Common Stock 6.31K $13.96 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The stock option (Grant #1315) was granted on May 20, 2020.
F2 The stock option (Grant #1316) was granted on May 20, 2020.
F3 The stock option (Grant #1567) was granted on February 1, 2021.

Remarks:

Exhibit 24