NVRI

SEC source: 0002104052-26-000134 · wk-form4_1787141470.xml · nonDerivative · entry 2

Minan Peter Francis · CIK 0001544647 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,505

SEC source: 0002104052-26-000134 · wk-form4_1787141470.xml · nonDerivative · entry 1

Minan Peter Francis · CIK 0001544647 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,998

SEC source: 0002104052-26-000132 · wk-form4_1787086511.xml · nonDerivative · entry 1

HAZNEDAR CAROLANN I · CIK 0001756619 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,955

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $20.38 to $20.60, inclusive. The reporting person undertakes to provide to Enviri Corporation, any security holder of Enviri Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4.

SEC source: 0002104052-26-000112 · wk-form4_1781728836.xml · derivative · entry 2

Reitemeier Christophe · CIK 0002050057 · President-Harsco Environmental

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,627

Underlying: Common Stock · 12,627 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000112 · wk-form4_1781728836.xml · nonDerivative · entry 1

Reitemeier Christophe · CIK 0002050057 · President-Harsco Environmental

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,246

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests in three equal increments on each subsequent anniversary of the grant date.

F2 · balance_after: Includes 22,499 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000098 · wk-form4_1781728203.xml · nonDerivative · entry 1

O'Mara Rebecca Martinez · CIK 0001922048 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,219

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests on the anniversary of the grant date.

F2 · balance_after: Includes 15,969 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000102 · wk-form4_1781728316.xml · nonDerivative · entry 1

HAZNEDAR CAROLANN I · CIK 0001756619 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,080

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests on the anniversary of the grant date.

F2 · balance_after: Includes 31,830 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 11

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,519

Underlying: Common Stock · 26,519 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 10

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,166

Underlying: Common Stock · 19,166 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 9

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,175

Underlying: Common Stock · 20,175 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 8

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,680

Underlying: Common Stock · 9,680 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 7

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,456

Underlying: Common Stock · 6,456 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 6

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,774

Underlying: Common Stock · 20,774 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 5

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,361

Underlying: Common Stock · 21,361 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 4

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,700

Underlying: Common Stock · 5,700 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 3

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,616

Underlying: Common Stock · 6,616 shares

Expires not disclosed

F3 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F3 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · derivative · entry 2

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,231

Underlying: Common Stock · 144,231 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F2 · derivative.exercise_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F2 · derivative.expiration_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

SEC source: 0002104052-26-000116 · wk-form4_1781728889.xml · nonDerivative · entry 1

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 288,741

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests in three equal increments on each subsequent anniversary of the grant date.

SEC source: 0002104052-26-000101 · wk-form4_1781728309.xml · nonDerivative · entry 1

FANANDAKIS NICHOLAS C · CIK 0001471770 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,352

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests on the anniversary of the grant date.

F2 · balance_after: Includes 6,102 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000104 · wk-form4_1781728331.xml · nonDerivative · entry 1

Earl James F · CIK 0001310741 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,767

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests on the anniversary of the grant date.

F2 · balance_after: Includes 43,517 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000103 · wk-form4_1781728323.xml · derivative · entry 2

Quinn John S · CIK 0001380533 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,155

Underlying: Common Stock · 3,155 shares

Expires not disclosed

F3 · derivative.exercise_date: Deferred Stock Units represent deferred cash compensation awarded based on an election by the reporting person in connection with the reporting person's service as a non-employee director of the Issuer. Each Deferred Stock Unit, following vesting, represents the right to receive the value, in cash, of 1 share of the Issuer's common stock at the time of the reporting person's elected distribution date(s). The Deferred Stock Units generally vest in installments at the end of each fiscal quarter in 2026. The reporting person elected to receive settlement and distribution of the Deferred Stock Units in five equal annual installments beginning in 2027.

F3 · derivative.expiration_date: Deferred Stock Units represent deferred cash compensation awarded based on an election by the reporting person in connection with the reporting person's service as a non-employee director of the Issuer. Each Deferred Stock Unit, following vesting, represents the right to receive the value, in cash, of 1 share of the Issuer's common stock at the time of the reporting person's elected distribution date(s). The Deferred Stock Units generally vest in installments at the end of each fiscal quarter in 2026. The reporting person elected to receive settlement and distribution of the Deferred Stock Units in five equal annual installments beginning in 2027.

F3 · derivative.underlying: Deferred Stock Units represent deferred cash compensation awarded based on an election by the reporting person in connection with the reporting person's service as a non-employee director of the Issuer. Each Deferred Stock Unit, following vesting, represents the right to receive the value, in cash, of 1 share of the Issuer's common stock at the time of the reporting person's elected distribution date(s). The Deferred Stock Units generally vest in installments at the end of each fiscal quarter in 2026. The reporting person elected to receive settlement and distribution of the Deferred Stock Units in five equal annual installments beginning in 2027.

SEC source: 0002104052-26-000103 · wk-form4_1781728323.xml · nonDerivative · entry 1

Quinn John S · CIK 0001380533 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,629

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests on the anniversary of the grant date.

F2 · balance_after: Includes 13,379 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000111 · wk-form4_1781728830.xml · derivative · entry 2

Minan Peter Francis · CIK 0001544647 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,924

Underlying: Common Stock · 76,924 shares

Expires not disclosed

F2 · derivative.exercise_price: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F2 · derivative.exercise_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F2 · derivative.expiration_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

SEC source: 0002104052-26-000111 · wk-form4_1781728830.xml · nonDerivative · entry 1

Minan Peter Francis · CIK 0001544647 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,559

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests in three equal increments on each subsequent anniversary of the grant date.

SEC source: 0002104052-26-000099 · wk-form4_1781728295.xml · nonDerivative · entry 1

Purvis Edgar M Jr · CIK 0001630755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,225

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests on the anniversary of the grant date.

SEC source: 0002104052-26-000115 · wk-form4_1781728884.xml · derivative · entry 3

Fenice Samuel C. · CIK 0001731943 · VP & Corporate Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,808

Underlying: Common Stock · 4,808 shares

Expires not disclosed

F4 · derivative.exercise_price: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F4 · derivative.exercise_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F4 · derivative.expiration_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

SEC source: 0002104052-26-000115 · wk-form4_1781728884.xml · nonDerivative · entry 1

Fenice Samuel C. · CIK 0001731943 · VP & Corporate Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,554

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests in three equal increments on each subsequent anniversary of the grant date.

F2 · balance_after: Includes 24,527 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000100 · wk-form4_1781728302.xml · nonDerivative · entry 1

LAURION TIMOTHY M · CIK 0001967034 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,170

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests on the anniversary of the grant date.

F2 · balance_after: Includes 15,920 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000114 · wk-form4_1781728879.xml · derivative · entry 3

Lada Gary Raymond · CIK 0002068267 · SVP and President-Harsco Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,283

Underlying: Common Stock · 11,283 shares

Expires not disclosed

F4 · derivative.exercise_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

F4 · derivative.expiration_date: Represents Stock Appreciation Rights ("SARs") granted under the Issuer's 2026 Omnibus Incentive Plan to replace similar stock appreciation rights held by the reporting period prior to, and canceled in connection with, a reorganization occurring immediately before the spin-off of the Issuer from its predecessor. The SARs are fully vested as of the date hereof.

SEC source: 0002104052-26-000114 · wk-form4_1781728879.xml · derivative · entry 2

Lada Gary Raymond · CIK 0002068267 · SVP and President-Harsco Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,616

Underlying: Common Stock · 9,616 shares

Expires not disclosed

F3 · derivative.exercise_price: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F3 · derivative.exercise_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F3 · derivative.expiration_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

SEC source: 0002104052-26-000114 · wk-form4_1781728879.xml · nonDerivative · entry 1

Lada Gary Raymond · CIK 0002068267 · SVP and President-Harsco Rail

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,530

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests in three equal increments on each subsequent anniversary of the grant date.

F2 · balance_after: Includes 4,030 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000113 · wk-form4_1781728874.xml · derivative · entry 2

Romaninsky Samuel Darden · CIK 0002101426 · SVP and General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,616

Underlying: Common Stock · 9,616 shares

Expires not disclosed

F3 · derivative.exercise_price: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F3 · derivative.exercise_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

F3 · derivative.expiration_date: Represents the target number of Performance Restricted Stock Units granted under the Issuer's 2026 Omnibus Incentive Plan, each of which represents the contingent right to receive a variable amount of shares of the Issuer's common stock based on the level of achievement of share-price performance targets over the period of June 1, 2026, through June 30, 2029 (the "Performance Period"). The Performance Restricted Stock Units vest between 0% and 250% of target, measured as of the earlier of the final financial quarter of the Performance Period or during a measurement period ending no fewer than three days prior to a Change in Control of the Issuer.

SEC source: 0002104052-26-000113 · wk-form4_1781728874.xml · nonDerivative · entry 1

Romaninsky Samuel Darden · CIK 0002101426 · SVP and General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,655

F1 · price: Restricted stock units granted under the Issuer's 2026 Omnibus Incentive Plan represent a contingent right to receive the Issuer's common stock on a one-for-one basis when the restricted stock units vest. Each reported restricted stock unit vests in three equal increments on each subsequent anniversary of the grant date.

F2 · balance_after: Includes 18,443 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000079 · wk-form4_1780951526.xml · nonDerivative · entry 1

Minan Peter Francis · CIK 0001544647 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,434

F1 · balance_after: Includes 8,101 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000071 · wk-form4_1780579687.xml · nonDerivative · entry 1

Hochman Russell C. · CIK 0001636757 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,510

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $18.82 to $19.48, inclusive. The reporting person undertakes to provide to Enviri Corporation, any security holder of Enviri Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4.

F2 · balance_after: Includes 92,991 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0002104052-26-000072 · wk-form4_1780579698.xml · nonDerivative · entry 1

Purvis Edgar M Jr · CIK 0001630755 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,975

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $18.09 to $18.30, inclusive. The reporting person undertakes to provide to Enviri Corporation, any security holder of Enviri Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4.

F2 · balance_after: Includes 33,975 shares acquired in a pro rata distribution by CLEH, Inc. on June 1, 2026 of all of the outstanding shares of the Issuer's common stock to the stockholders of CLEH, Inc.

SEC source: 0000045876-26-000258 · wk-form4_1780353406.xml · nonDerivative · entry 1

ENVIRI Corp · CIK 0000045876 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · kind: On June 1, 2026, all the outstanding shares of common stock of Enviri II Corporation were distributed, as a result of the following series of transactions made on that same date: (i) Enviri Corporation merged with and into Enviri LLC, with Enviri LLC surviving, and each outstanding share of common stock of Enviri Corporation exchanged for one share of common stock of CLEH, Inc., and (ii) CLEH, Inc. and its subsidiaries, including Enviri LLC and Enviri II Corporation, effected a reorganization, resulting in (x) Enviri II Corporation owning all of the equity interests of Enviri LLC, (y) Enviri LLC holding the Harsco Environmental and Rail segments of Enviri Corporation, and (z) CLEH, Inc. holding the Clean Earth segment of Enviri Corporation and owning all the outstanding shares of common stock of Enviri II Corporation, which CLEH, Inc. distributed to its stockholders (the former stockholders of Enviri Corporation) on a pro rata basis and for no consideration.

F2 · shares: Represents the 1,000 shares initially reported on a Form 3 filed by Enviri Corporation on May 8, 2026, adjusted to reflect the stock split that occurred on May [29], 2026.