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Onterris, Inc.

An environmental services company that helps organizations with everything from soil and water cleanup to permits and emergency response, offering consulting, lab testing, and treatment. Founded in 2012 as Montrose Environmental Group, it rebranded to Onterris in 2026. Its name blends "on" and "terris" (earth) and was inspired by NASA's "Pale Blue Dot" photo of Earth from Voyager 1.

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2026Q2

1 buy

ArrowMark PartnersADD

+199.5K shares(+142.6%)

ArrowMark PartnersADD

+199.5K shares(+142.6%)

2026Q1

1 sell

ArrowMark PartnersTRIM

-129.5K shares(-48.1%)

ArrowMark PartnersTRIM

-129.5K shares(-48.1%)

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