Jennifer O Kozak - 16 Dec 2025 Form 4 Insider Report for ENVIRI Corp (NVRI)

Role: Senior Vice President & CHRO
Signature: /s/ Jennifer O. Kozak
Issuer symbol: NVRI
Transactions as of: 16 Dec 2025
Net transactions value: -$1,149,522
Form type: 4
Filing time: 18 Dec 2025, 15:48:59 UTC
Previous filing: 09 Dec 2025
Next filing: 02 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Kozak Jennifer Ott	Senior Vice President & CHRO	100-120 NORTH 18TH STREET, 17TH FLOOR, PHILADELPHIA	/s/ Jennifer O. Kozak	18 Dec 2025	0001949030

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NVRI	Common Stock	Options Exercise	$0	+43,334	+530%	$0.000000	51,515	16 Dec 2025	Direct	F1
transaction	NVRI	Common Stock	Tax liability	$355,197	-19,899	-39%	$17.85	31,616	16 Dec 2025	Direct
transaction	NVRI	Common Stock	Options Exercise	$0	+60,992	+193%	$0.000000	92,608	16 Dec 2025	Direct	F1
transaction	NVRI	Common Stock	Disposed to Issuer	$544,354	-30,496	-33%	$17.85	62,112	16 Dec 2025	Direct	F2
transaction	NVRI	Common Stock	Tax liability	$249,971	-14,004	-23%	$17.85	48,108	16 Dec 2025	Direct

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	NVRI	Performance Share Units	Options Exercise	$0	-43,334	-100%	$0.000000	0	16 Dec 2025	Common Stock	43,334		Direct	F3
transaction	NVRI	Performance Share Units	Options Exercise	$0	-60,992	-100%	$0.000000	0	16 Dec 2025	Common Stock	60,992		Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares issued upon vesting of performance share unit awards, as approved on December 15, 2025 by the Management Development & Compensation Committee of the Enviri Board of Directors.
F2	Represents deemed surrender to the issuer of shares deemed to be issued upon vesting of the cash-settled portion of performance share units referenced in footnote (4) below.
F3	Each performance share unit vested at 200% of the target number of performance share units reported on the reporting person's Form 4 filed March 13, 2024, based on the total shareholder return of Enviri common stock relative to the S&P 600 Industrials Index.
F4	Each performance share unit vested at 200% of the target number of performance share units reported on the reporting person's Form 4 filed March 6, 2025, based on the total shareholder return of Enviri common stock relative to the S&P 600 Industrials Index. 50% of the performance share units were settled in shares of Enviri common stock and 50% of the performance share units were settled in cash.