Robert Yu Lang Mao - May 22, 2024 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
May 22, 2024
Transactions value $
-$291,656
Form type
4
Date filed
5/24/2024, 04:55 PM
Previous filing
Mar 6, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ERII Common Stock Options Exercise $170K +21.9K +9.5% $7.79 252K May 22, 2024 Direct
transaction ERII Common Stock Options Exercise $40.6K +5.21K +2.07% $7.79 257K May 22, 2024 Direct
transaction ERII Common Stock Sale -$292K -21K -8.18% $13.86 236K May 22, 2024 Direct F1
transaction ERII Common Stock Options Exercise $83.8K +10.8K +4.55% $7.79 247K May 23, 2024 Direct
transaction ERII Common Stock Options Exercise $16.2K +2.08K +0.84% $7.79 249K May 23, 2024 Direct
holding ERII Common Stock 96.2K May 22, 2024 The Robert and Iran Mao Rev Trust DTD 04-06-2006 F2

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 -$170K -21.9K -67.03% $7.79 10.8K May 22, 2024 Common Stock 21.9K $7.79 Direct F3
transaction ERII Employee Stock Option (Right to Buy) Options Exercise -$40.6K -5.21K -71.42% $7.79 2.08K May 22, 2024 Common Stock 5.21K $7.79 Direct F3
transaction ERII Employee Stock Option (Right to Buy) Options Exercise -$83.8K -10.8K -100% $7.79 0 May 23, 2024 Common Stock 10.8K $7.79 Direct F3
transaction ERII Employee Stock Option (Right to Buy) Options Exercise -$16.2K -2.08K -100% $7.79 0 May 23, 2024 Common Stock 2.08K $7.79 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This figure is the weighted average sales price of multiple trades ranging from $13.81 to $13.95 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 Mr. Mao is a co-trustee and exercises shared voting and investment power.
F3 This employee stock option was granted on May 20, 2020. 25% of the underlying shares vest on the 1st anniversary of the vesting commencement date; thereafter, the remaining 75% vest 1/36th per month.

Remarks:

Exhibit 24