Enviri executive exercises RSUs; shares withheld for tax

Enviri Corp President-Harsco Environmental Christophe Reitemeier reported routine equity compensation activity involving restricted stock units tied to Enviri common stock.

Rhea-AI Filing Summary

Enviri Corp President-Harsco Environmental Christophe Reitemeier reported routine equity compensation activity involving restricted stock units tied to Enviri common stock. He exercised 19,993 restricted stock units, converting them into the same number of common shares. In connection with this vesting, 9,398 common shares were disposed of to cover tax obligations at an indicated price of $19.53 per share, which is a tax-withholding mechanism rather than an open-market sale. After these transactions, he directly held 66,491 common shares. A footnote explains that these restricted stock units were granted under Enviri’s 2013 Equity and Incentive Compensation Plan and were vested and settled as approved on May 18, 2026 by the board in connection with Enviri’s sale of its Clean Earth division.

Insights

Equity compensation analyst

Executive equity grant vests; shares withheld only for taxes.

The filing shows Christophe Reitemeier exercising 19,993 restricted stock units into Enviri common shares, paired with a disposition of 9,398 shares strictly to satisfy tax obligations at $19.53 per share. No open-market buying or selling is reported.

All RSUs referenced here have now vested and been settled, and the derivativeSummary is empty, indicating no remaining RSUs from this specific award. Following the transactions, he directly holds 66,491 common shares, so the net change is modest relative to his disclosed position.

A footnote links the vesting and settlement to board approval on May 18, 2026 in connection with Enviri’s sale of its Clean Earth division. The events appear compensation-driven and administrative, making this a routine update rather than a directional signal about the company’s outlook.

Insider Trade Summary

19,993 shares exercised/converted

Exercise 3 txns

Insider Reitemeier Christophe

Role President-Harsco Environmental

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	19,993	$0.00	$0.00
Exercise	Common Stock	19,993	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	9,398	$19.53	$184K

Holdings After Transaction: Restricted Stock Units — 0 contracts (Direct); Common Stock — 66,491 shares (Direct)

Footnotes (1)

1. F1. Restricted stock units granted under the 2013 Equity and Incentive Compensation Plan represent a contingent right to receive Enviri common stock on a one-for-one basis when the restricted stock units vest. The restricted stock units have been vested and settled, as approved on May 18, 2026 by the Enviri Board of Directors in connection with Enviri's sale of its Clean Earth division.

Key Figures

RSUs exercised: 19,993 units Shares withheld for taxes: 9,398 shares Indicated tax price: $19.53/share +3 more

6 metrics

RSUs exercised 19,993 units Restricted Stock Units converted into common stock on May 20, 2026

Shares withheld for taxes 9,398 shares Tax-withholding disposition at $19.53 per share

Indicated tax price $19.53/share Price used for tax-withholding share disposition

Shares held after transactions 66,491 shares Direct Enviri common stock ownership following Form 4 transactions

Tax-withholding shares count 9,398 shares Transaction code F, payment of tax liability by delivering securities

Exercise transactions 1 exercise, 19,993 shares transactionSummary exerciseCount and exerciseShares

Key Terms

Restricted stock units, 2013 Equity and Incentive Compensation Plan, tax-withholding disposition, derivative exercise/conversion, +1 more

5 terms

Restricted stock units financial

"Restricted stock units granted under the 2013 Equity and Incentive Compensation Plan represent a contingent right"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2013 Equity and Incentive Compensation Plan financial

"Restricted stock units granted under the 2013 Equity and Incentive Compensation Plan represent a contingent right"

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition" for the F-coded transaction"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative exercise/conversion financial

"transaction_action: "derivative exercise/conversion" for the M-coded transactions"

Exercise or conversion of derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Enviri (NVRI) executive Christophe Reitemeier report in this Form 4?

He reported the vesting and settlement of 19,993 restricted stock units into Enviri common stock and a related tax-withholding share disposition. These transactions reflect routine equity compensation mechanics rather than open-market buying or selling of NVRI shares.

How many Enviri (NVRI) shares did Reitemeier acquire and dispose of in this filing?

He acquired 19,993 Enviri common shares through the exercise of restricted stock units and disposed of 9,398 shares to cover tax obligations. The disposition is coded as a tax-withholding event, not an open-market sale of NVRI stock.

What is Christophe Reitemeier’s Enviri (NVRI) shareholding after these Form 4 transactions?

After completing the reported equity compensation transactions, Christophe Reitemeier directly holds 66,491 Enviri common shares. This figure reflects his position following the RSU exercise and the tax-withholding share disposition disclosed in the Form 4 filing.

Were the Enviri (NVRI) transactions open-market trades or tax-related events?

The filing shows a derivative exercise and a tax-withholding disposition, not open-market trades. Shares were acquired by exercising restricted stock units, and 9,398 shares were disposed of solely to satisfy tax liabilities associated with the vesting event.

How is Enviri’s 2013 Equity and Incentive Compensation Plan involved in this Form 4?

The restricted stock units were granted under Enviri’s 2013 Equity and Incentive Compensation Plan. According to the footnote, these RSUs vested and were settled following board approval, illustrating how the plan delivers Enviri common stock as part of executive compensation.

What corporate event is linked to the RSU vesting in Enviri (NVRI)’s Form 4 footnote?

The footnote states that the RSUs vested and were settled as approved on May 18, 2026 by Enviri’s board in connection with the sale of its Clean Earth division. This links the vesting timing to that specific corporate transaction.

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

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Accepted by SEC EDGAR 05/22/2026 - 03:59 PM EDT Learn about SEC filing dates

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^*

Reitemeier Christophe

(Last) (First) (Middle)

TWO LOGAN SQUARE

100-120 N. 18TH STREET, 17TH FLOOR

(Street)

PHILADELPHIA PENNSYLVANIA 19103

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ENVIRI Corp [ NVRI ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President-Harsco Environmental

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

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

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

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

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	05/20/2026		M		19,993	A	$0	75,889	D
Common Stock	05/20/2026		F		9,398	D	$19.53	66,491	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
Restricted Stock Units	(1)	05/20/2026		M			19,993	(1)	(1)	Common Stock	19,993	$0	0	D

Explanation of Responses:

1. Restricted stock units granted under the 2013 Equity and Incentive Compensation Plan represent a contingent right to receive Enviri common stock on a one-for-one basis when the restricted stock units vest. The restricted stock units have been vested and settled, as approved on May 18, 2026 by the Enviri Board of Directors in connection with Enviri's sale of its Clean Earth division.

Remarks:

	/s/ Christophe Reitemeier	05/22/2026
	** 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.
* Form 4: SEC 1474 (03-26)