Energy Recovery (ERII) awards 25,959 restricted stock units to HR chief

Rhea-AI Filing Summary

Hostetler Matthew reported acquisition or exercise transactions in this Form 4 filing.

Energy Recovery, Inc. reported that Chief Human Resources Officer Matthew Hostetler received an equity grant in the form of employee restricted stock units. The award covers 25,959 restricted stock units, each convertible into one share of common stock at settlement, with no cash paid per unit.

According to the vesting schedule, 25% of the restricted stock units will vest on each of the first four anniversaries of the grant date, creating a four-year vesting period. Following this award, Hostetler’s direct holdings total 46,556 shares of common stock, aligning his compensation further with the company’s long-term performance.

Insights

Equity Compensation Analyst

Routine equity grant aligns executive pay with long-term shareholder value.

Matthew Hostetler, Chief Human Resources Officer of Energy Recovery, Inc., received 25,959 restricted stock units, each tied to one share of common stock. The grant carries a zero exercise price, consistent with typical time-based RSU awards.

The units vest in four equal annual installments, with 25% vesting on each of the first four anniversaries of the grant date. This vesting design encourages retention and links compensation to future share performance, while actual impact on the share count depends on how many units ultimately vest and settle.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Hostetler Matthew

Role Chief Human Resources Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	25,959	$0.00	--

Holdings After Transaction: Common Stock — 46,556 shares (Direct)

Footnotes (1)

1. These employee restricted stock units were granted on the transaction date. 25% of the restricted stock units will vest on the first four anniversaries of the grant date. Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Company's common stock.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hostetler Matthew

(Last) (First) (Middle)

1717 DOOLITTLE DR

(Street)

SAN LEANDRO CA 94577

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Energy Recovery, Inc. [ ERII ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Human Resources Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/17/2026		A		25,959(1)(2)	A	$0	46,556	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These employee restricted stock units were granted on the transaction date. 25% of the restricted stock units will vest on the first four anniversaries of the grant date.

2. Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Company's common stock.

Remarks:

Exhibit 24

	/s/ William Yeung, Attorney-in-Fact for Matthew Hostetler	02/19/2026
	** Signature of Reporting Person	Date
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 4 (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.

FAQ

What did ERII insider Matthew Hostetler receive in this Form 4 filing?

Matthew Hostetler received an award of 25,959 restricted stock units from Energy Recovery, Inc.. Each restricted stock unit represents one share of common stock deliverable at settlement, providing additional equity-based compensation tied directly to the company’s future share performance and retention objectives.

How do the restricted stock units granted to ERII’s Matthew Hostetler vest?

The restricted stock units vest over four years, with 25% vesting on each of the first four anniversaries of the grant date. This time-based vesting schedule supports executive retention and gradually delivers common stock as long-term service requirements are satisfied.

Does Matthew Hostetler pay anything for the ERII restricted stock units granted?

The grant was reported at a price of $0.0000 per unit, meaning Hostetler does not pay cash to receive the restricted stock units. Value is realized later as units vest and settle into common shares, assuming he remains eligible under award terms.

How many ERII shares does Matthew Hostetler hold after this equity award?

After the reported grant, Matthew Hostetler directly holds 46,556 shares of Energy Recovery, Inc. common stock. This total includes the impact of the newly awarded restricted stock units, further aligning his personal holdings with shareholders’ long-term interests.

What does each ERII restricted stock unit granted to Matthew Hostetler represent?

Each restricted stock unit represents the right to receive one share of Energy Recovery, Inc. common stock at settlement. Delivery occurs as units vest over time, subject to the four-year vesting schedule and any continued service or other conditions in the award agreement.