STOCK TITAN

Energy Recovery (NASDAQ: ERII) interim CFO Ryan Aidan reports stock and option stakes

(Neutral)
(Neutral)
Form Type
3

Rhea-AI Filing Summary

Energy Recovery, Inc. disclosed the initial holdings of Interim CFO Ryan Aidan. He directly holds 15,615 shares of common stock. He also holds employee stock options covering 14,887 shares of common stock at an exercise price of $16.19 per share, expiring on December 16, 2034.

The options vest over four years, with 25% vesting on the first anniversary of the vesting commencement date and the remaining 75% vesting monthly over the following three years.

Positive

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Insider Ryan Aidan
Role Interim CFO
Type Security Shares Price Value
holding Employee Stock Option (Right to Buy) -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Employee Stock Option (Right to Buy) — 14,887 shares (Direct); Common Stock — 15,615 shares (Direct)
Footnotes (1)
  1. F1. The granted options shall vest on a four (4) year schedule commencing on the Vesting Commencement Date, with 25% of the granted options vesting on the first anniversary of the Vesting Commencement Date and thereafter, the remaining 75% will vest 1/36th per month over the remaining three years beginning one month following the one-year anniversary of the grant.
Direct common shares owned 15,615 shares Common Stock holdings reported by Interim CFO
Option underlying shares 14,887 shares Employee Stock Option (Right to Buy) underlying common shares
Option exercise price $16.19 per share Employee Stock Option exercise price
Option expiration date December 16, 2034 Employee Stock Option expiration
Initial holding entries 2 entries One common stock, one employee stock option position
Employee Stock Option (Right to Buy) financial
"security_title: "Employee Stock Option (Right to Buy)""
vesting financial
"The granted options shall vest on a four (4) year schedule"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
Vesting Commencement Date financial
"commencing on the Vesting Commencement Date, with 25% of the granted options vesting"
The vesting commencement date is the starting point when an employee begins earning ownership rights to their promised benefits, such as stock options or retirement contributions. Think of it like the day a savings account is opened—only after this date do the benefits start to grow and become fully available over time. It matters to investors because it marks when the clock begins ticking toward full ownership, affecting the timing and value of these benefits.
beneficial ownership financial
"He directly holds 15,615 shares of common stock."
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What does Energy Recovery (ERII) Interim CFO Ryan Aidan report in this Form 3?

Interim CFO Ryan Aidan reports his initial ownership in Energy Recovery, Inc. He directly holds 15,615 common shares and employee stock options for 14,887 additional shares, providing transparency about his equity stake when becoming a reporting insider.

How many Energy Recovery (ERII) shares does Interim CFO Ryan Aidan directly own?

Ryan Aidan directly owns 15,615 shares of Energy Recovery common stock. This figure reflects his beneficial ownership position as reported, giving investors a clear view of his direct equity exposure to the company.

What stock options does ERII Interim CFO Ryan Aidan hold according to the filing?

He holds employee stock options covering 14,887 shares of Energy Recovery common stock at an exercise price of $16.19 per share, expiring December 16, 2034, representing a significant potential additional equity position if fully exercised.

How do Ryan Aidan’s stock options at Energy Recovery (ERII) vest?

The options vest over four years from the vesting commencement date. Twenty-five percent vest on the first anniversary, and the remaining 75% vest in equal monthly installments over the following three years, aligning his incentives with longer-term company performance.

Does this Energy Recovery (ERII) Form 3 show any recent insider buying or selling?

The Form 3 reflects holdings, not recent trades. It reports Ryan Aidan’s existing common shares and stock options as he becomes a reporting insider, without indicating new purchases or sales of Energy Recovery securities.
SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Ryan Aidan

(Last)(First)(Middle)
C/O ENERGY RECOVERY, INC.
1717 DOOLITTLE DRIVE

(Street)
SAN LEANDRO CALIFORNIA 94577

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
05/05/2026
3. Issuer Name and Ticker or Trading Symbol
Energy Recovery, Inc. [ ERII ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Interim CFO
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock15,615D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (Right to Buy) (1)12/16/2034Common Stock14,887$16.19D
Explanation of Responses:
1. The granted options shall vest on a four (4) year schedule commencing on the Vesting Commencement Date, with 25% of the granted options vesting on the first anniversary of the Vesting Commencement Date and thereafter, the remaining 75% will vest 1/36th per month over the remaining three years beginning one month following the one-year anniversary of the grant.
Remarks:
Exhibit 24
/s/ William Yeung, Attorney-in-Fact for Aidan Ryan05/19/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)