# EDGAR Filing Document

**Accession Number:** 0000045876
**File Stem:** 0000045876-26-000148
**Filing Date:** 2026-5
**Character Count:** 7311
**Document Hash:** d629fc043c5f83471b774dcfbacec0ea
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000045876-26-000148.hdr.sgml**: 20260521

**ACCESSION NUMBER**: 0000045876-26-000148

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260519

**FILED AS OF DATE**: 20260521

**DATE AS OF CHANGE**: 20260521

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Romaninsky Samuel Darden
- **CENTRAL INDEX KEY:** 0002101426

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-03970
- **FILM NUMBER:** 261010260

**MAIL ADDRESS:**
- **STREET 1:** TWO LOGAN SQUARE
- **STREET 2:** 100-120 N. 18TH STREET, SUITE 1700
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19103
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ENVIRI Corp
- **CENTRAL INDEX KEY:** 0000045876
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-SERVICES, NEC [8900]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 231483991
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** TWO LOGAN SQUARE
- **STREET 2:** 100-120 NORTH 18TH STREET, 17TH FLOOR
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19103
- **BUSINESS PHONE:** 267-857-8715

**MAIL ADDRESS:**
- **STREET 1:** TWO LOGAN SQUARE
- **STREET 2:** 100-120 NORTH 18TH STREET, 17TH FLOOR
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19103

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HARSCO CORP
- **DATE OF NAME CHANGE:** 19920703

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Romaninsky Samuel Darden<br><sub>(Last) (First) (Middle)</sub><br>TWO LOGAN SQUARE<br>100-120 N. 18TH STREET, SUITE 1700<br><sub>(Street)</sub><br>PHILADELPHIA, PA 19103<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-19 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_VP, General Counsel & CCO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>ENVIRI Corp [ NVRI ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock, $1.25 par value | 2026-05-19 |  | M |  | 16072<sup>(1)</sup> | A | $0 | 47838 | D |  |
| Common Stock, $1.25 par value | 2026-05-19 |  | F |  | 7381 | D | $19.18 | 40457 | D |  |
| Common Stock, $1.25 par value | 2026-05-19 |  | M |  | 11311<sup>(1)</sup> | A | $0 | 51768 | D |  |
| Common Stock, $1.25 par value | 2026-05-19 |  | F |  | 5195 | D | $19.18 | 46573 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Performance Share Units | $0 | 2026-05-19 |  | M |  |  | 16072 | <sup>(2)</sup> | 2026-12-31 | Common Stock, $1.25 par value | 16072 | $0 | 0 | D |  |
| Performance Share Units | $0 | 2026-05-19 |  | M |  |  | 22622 | <sup>(3)</sup> | 2027-12-31 | Common Stock, $1.25 par value | 22622 | $0 | 11311 | D |  |

---

### Footnotes:

(1) Represents shares issued upon vesting and settlement of performance share unit awards, as approved on May 18, 2026 by the Enviri Board of Directors in connection with Enviri's sale of its Clean Earth division, which portion of the performance share unit awards settled in stock in accordance with the award's terms.

(2) Each performance share unit vested and settled in shares at 200% of the target number of performance share units reported on the reporting person's Form 3 filed December 16, 2025, based on the total shareholder return of Enviri common stock relative to the S&P 600 Industrials Index.

(3) Each performance share unit vested at 200% of the target number of performance share units reported on the reporting person's Form 3 filed December 16, 2025, based on the total shareholder return of Enviri common stock relative to the S&P 600 Industrials Index. The remining portion of the performance share units will settle in cash in accordance with the award's terms.

**Signature:** /s/ Samuel Romaninsky  
**Date:** 2026-05-21

### Remarks:

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.**