Montrose Environmental Group Rebrands to Onterris, Changes Ticker to ONT
MEG sits 50% above its 52-week low of $13.75.
Summary
Montrose Environmental Group has rebranded to Onterris, Inc. and will trade under the new NYSE ticker "ONT" starting May 4, 2026, signaling a strategic repositioning to unify its environmental solutions offerings.
Key Events · Corporate Governance and Compliance · MEG
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Corporate Name Change
Montrose Environmental Group, Inc. officially changed its name to Onterris, Inc. on April 17, 2026, with the amendment to its Certificate of Incorporation becoming effective immediately.
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New Ticker Symbol
The company's common stock will begin trading under the new ticker symbol "ONT" on the New York Stock Exchange starting May 4, 2026.
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Strategic Rebranding Initiative
The rebranding is a strategic move to unify the company's global identity, reflecting its evolution and broader role in tackling complex environmental challenges, aiming to enhance client engagement and support long-term organic growth.
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No Shareholder Approval Required
The Name Change and related amendment were approved by the Board of Directors, and stockholder approval was not required under Delaware law.
Analysis · MEG · Trade & Services
Montrose Environmental Group, Inc. has officially changed its corporate name to Onterris, Inc., effective April 17, 2026, with its common stock set to begin trading under the new ticker symbol "ONT" on the NYSE starting May 4, 2026. This rebranding is presented as a strategic move to reflect the company's evolution and broader role in environmental solutions, aiming to unify its diverse expertise under a single global identity for enhanced client engagement and long-term organic growth. While the name change itself is administrative, the strategic rationale behind it suggests a significant repositioning of the company's market identity and future direction.
How filings like this one have moved
In the 30 days to Oct 3, 2026, 28.9% of the 1668 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.56%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, MEG was trading at $20.57 on NYSE in the Trade & Services sector, with a market capitalization of approximately $740.1M. The 52-week trading range was $13.75 to $32.00. This filing was assessed with neutral market sentiment and an importance score of 7 out of 10.