SMITH LENOX SHARON E 4

4 · Energy Recovery, Inc. · Filed Feb 5, 2018

Form 4

Period: 2018-02-01

Controller

Transactions

Tax Payment
Common Stock
2018-02-05$7.74/sh−388$3,002→ 13,145 total
Tax Payment
Common Stock
2018-02-01$8.98/sh−54$485→ 8,533 total
Award
Employee Stock Option (Right to Buy)
2018-02-01+8,674→ 8,674 total
Exercise: $7.50Exp: 2028-02-01→ Common Stock (8,674 underlying)
Award
Common Stock
2018-02-01$7.50/sh+5,000$37,500→ 13,533 total

Footnotes (6)

[F1]Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).
[F2]Represents the weighted average stock price of the shares withheld for each restricted stock unit award vesting.
[F3]This restricted stock unit award was granted February 1, 2018 and vests 25% on each of the first four anniversaries of the grant date.
[F4]Payment of tax obligation by selling securities incident to the vesting of securities in accordance with Rule 16b-3(e).
[F5]Represents the weighted average stock price of the shares sold to cover tax obligation for restricted stock unit award vesting.
[F6]This employee stock option was granted on February 1, 2018. 25% of the shares fully vest on the 1st anniversary of the vesting start date; thereafter, the remaining 75%, vest 1/36th per month.

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