secwatch / observer
8-K filed April 21, 2026, 7:59 PM ET ticker ONT CIK 0001643615
other material confidence high sentiment neutral materiality 0.40

Montrose Environmental rebrands to Onterris, Inc.; ticker changes to ONT on May 4

Onterris, Inc.

Key facts

Extracted from this filing and checked against the source text.

Governance Changes SEC 8-K Item 5.03/5.05/5.06 confidence 0.9

Onterris, Inc.: Amended certificate of incorporation to change company name from Montrose Environmental Group, Inc. to Onterris, Inc (effective 2026-04-17).

Change
charter amendment
Effective
2026-04-17
Exact text from the filing
On April 17, 2026, Montrose Environmental Group, Inc. (the “Company”) filed with the Secretary of State of the State of Delaware an amendment to its Amended and Restated Certificate of Incorporation, as amended (the “Amendment”), to change the name of the Company from “Montrose Environmental Group, Inc.” to “Onterris, Inc.” (the “Name Change”). The Name Change and the Amendment became effective immediately upon filing.
View on SEC.gov
Governance Changes SEC 8-K Item 5.03/5.05/5.06 confidence 0.9

Onterris, Inc.: Amended bylaws to conform to and further implement the name change (effective 2026-04-17).

Change
bylaw amendment
Effective
2026-04-17
Exact text from the filing
In connection with approving the Amendment, the Company’s Board of Directors (the “Board”) approved an amendment to the Company’s Amended and Restated Bylaws to conform to and further implement the Name Change, subject to and effective upon the Amendment. Accordingly, the amendment to the Bylaws became effective upon the filing of the Certificate of Amendment reflecting the Amendment with the Secretary of State of the State of Delaware on April 17, 2026.
View on SEC.gov

42 governance changes filed in the last 30 days. Browse all governance changes →

Onterris, Inc. filing history →

Source: SEC EDGAR
accession 0001193125-26-166730
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