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.
Granted 4.4K
Granted 4.4K
Granted 137.9K · Sold 110.5K
Granted 4.4K · Bought 30.0K
Granted 209.1K · Sold 136.1K
Bought 6.5K
Granted 43.3K · Sold 43.5K
Granted 4.4K
Granted 14.4K · Sold 10.0K
Granted 4.4K
Granted 4.4K
Granted 18.8K
Granted 4.4K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Price James KDirector · 1 transaction | +0.4% | 1.08M | 4.4K | — | — |
| Perlman Richard EDirector · 2 transactions | -10.2% | 618.6K | 4.4K | — | — |
| Revuelta JoseChief Strategy Officer · 8 transactions | -6% | 296.6K | 137.9K | — | 110.5K |
| Graham PeterDirector · 3 transactions | +15.5% | 256.7K | 4.4K | 30.0K | — |
| Manthripragada VijayPresident & CEO, Director · 10 transactions | -25.2% | 236.8K | 209.1K | — | 136.1K |
| Dicks AllanChief Financial Officer · 2 transactions | -19.9% | 218.2K | — | 6.5K | — |
| Afsari NasymGeneral Counsel and Secretary · 4 transactions | -22.9% | 204.9K | 43.3K | — | 43.5K |
| Fernandez de Castro Jose MiguelDirector · 1 transaction | +2.8% | 162.9K | 4.4K | — | — |
| Presby J ThomasDirector · 4 transactions | +7.6% | 62.6K | 14.4K | — | 10.0K |
| Newmark RobinDirector · 1 transaction | +17.3% | 30.0K | 4.4K | — | — |
| Field Janet RisiDirector · 1 transaction | +18.6% | 28.3K | 4.4K | — | — |
| Laws JamesChief Operating Officer · 1 transaction | — | 18.8K | 18.8K | — | — |
| Colman VincentDirector · 1 transaction | +55.4% | 12.4K | 4.4K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last year: -263.6K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.