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Form SCHEDULE 13G Enviri Corp Filed by: MASON CAPITAL MANAGEMENT LLC

July 14, 2026 4:30 PM





Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)




schemaVersion:


SCHEDULE 13G




Comment for Type of Reporting Person: The information set forth on this cover page reflects information as of the close of business on July 14, 2026. As of June 1, 2026, the Reporting Person may have been deemed to beneficially own 1,770,959 shares of Common Stock (as defined in Item 2(a)), representing 6.3% of the shares of Common Stock outstanding as of such time.


SCHEDULE 13G




Comment for Type of Reporting Person: The information set forth on this cover page reflects information as of the close of business on July 14, 2026. As of June 1, 2026, the Reporting Person may have been deemed to beneficially own 1,770,959 shares of Common Stock, representing 6.3% of the shares of Common Stock outstanding as of such time.


SCHEDULE 13G




Comment for Type of Reporting Person: The information set forth on this cover page reflects information as of the close of business on July 14, 2026. As of June 1, 2026, the Reporting Person may have been deemed to beneficially own 1,770,959 shares of Common Stock, representing 6.3% of the shares of Common Stock outstanding as of such time.


SCHEDULE 13G



Mason Capital Management LLC
Signature:/s/ John Grizzetti
Name/Title:John Grizzetti, Chief Operating Officer
Date:07/14/2026
Kenneth M. Garschina
Signature:/s/ Kenneth M. Garschina
Name/Title:Kenneth M. Garschina, Individually
Date:07/14/2026
Michael E. Martino
Signature:/s/ Michael E. Martino
Name/Title:Michael E. Martino, Individually
Date:07/14/2026
Exhibit Information

Exhibit 99.1: Joint Filing Agreement

ATTACHMENTS / EXHIBITS

JOINT FILING AGREEMENT

Categories

SEC Filings