Every 8-K that Montrose Environmental Group, Inc. (MEG) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 8-K covers material events a company has to report between its quarterly reports, so if you follow MEG and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MEG filings page.
Onterris, Inc. reported results from its 2026 Annual Meeting of Stockholders. As of the March 12, 2026 record date, 36,169,781 common shares were outstanding, and 32,070,741.34 shares, or about 88.67% of those entitled to vote, were represented, establishing a quorum.
Stockholders elected three directors—Vincent P. Colman, Peter M. Graham, and Richard E. Perlman—to serve until the 2027 annual meeting. They also ratified Deloitte & Touche LLP as independent registered public accounting firm for the year ending December 31, 2026, and approved the non-binding Say-on-Pay proposal on executive compensation.
Onterris, Inc. reported first quarter 2026 revenue of $168.5 million, down 5.2% from $177.8 million as lower environmental emergency response and weather-affected work offset growth in its Consulting and Treatment segment. Net loss narrowed to $12.7 million, or $0.35 per share, from $19.4 million, or $0.64 per share, helped by better margins, gains on hedging instruments and lower stock-based compensation.
Consolidated Adjusted EBITDA was $17.8 million, or 10.6% of revenue, versus $19.0 million and 10.7% a year earlier. Operating cash flow was a negative $11.6 million, largely due to $16.0 million higher bonus payments tied to 2025 outperformance, and free cash flow was a negative $17.2 million. As of March 31, 2026, the company had a 2.8x leverage ratio and $188.4 million of liquidity, including $10.0 million of cash and $178.4 million available on its revolver.
Onterris reiterated full-year 2026 guidance for revenue of $840.0 million to $900.0 million, implying about 8% organic growth at the midpoint, and Consolidated Adjusted EBITDA of $125.0 million to $130.0 million, about 10% growth at the midpoint and roughly 15% margin. Second quarter 2026 revenue is expected between $190 million and $210 million, with Consolidated Adjusted EBITDA margin between 16% and 18%. The company rebranded from Montrose Environmental Group to Onterris and combined several businesses into a new Consulting and Treatment segment to better align its operating model.
Montrose Environmental Group, Inc. is changing its corporate name to Onterris, Inc. and its NYSE ticker from “MEG” to “ONT” effective at the start of trading on May 4, 2026. The amendment to the Amended and Restated Certificate of Incorporation and related bylaw changes were filed in Delaware and became effective on April 17, 2026 without a stockholder vote under Section 242 of Delaware law.
The name change does not affect the voting rights, validity or transferability of the existing common stock, and the CUSIP will remain the same. The company issued a press release on April 21, 2026 describing the new unified Onterris brand and its focus on environmental solutions.
Montrose Environmental Group reported a strong 2025, with revenue up 19.3% to $830.5 million and Consolidated Adjusted EBITDA rising 21.3% to $116.2 million, or 14.0% of revenue. The company nearly broke even on a GAAP basis, with net loss improving to $0.8 million ($0.14 LPS) from $62.3 million ($2.22 LPS). Operating cash flow jumped to $107.5 million and Free cash flow reached $87.0 million, helped by better working capital. Montrose fully redeemed $122.2 million of Series A‑2 preferred stock and ended 2025 with a 2.5x leverage ratio and $225.4 million of liquidity.
For 2026, Montrose guided to revenue of $840.0–$900.0 million, implying about 8% organic growth at the midpoint, including $50.0–$70.0 million of expected emergency response revenue. Consolidated Adjusted EBITDA is expected at $125.0–$130.0 million with EBITDA margin around 15%, and the company plans to restart smaller, highly accretive acquisitions while targeting at least 60% conversion of Consolidated Adjusted EBITDA to operating cash flow.
Montrose Environmental Group, Inc. appointed James Laws as its new Chief Operating Officer, effective January 19, 2026. Laws brings 25 years of environmental industry experience, including senior operational leadership roles at AECOM overseeing businesses with thousands of staff members.
Under an offer letter dated December 2, 2025, Laws will receive an annual base salary of $525,000 and will be eligible for an annual discretionary performance bonus of up to 100% of his base salary, based on his performance and the company’s goals. He is also scheduled to receive a one-time equity grant of $500,000 in restricted stock units in March, vesting in equal annual installments over three years, and will participate in the company’s executive severance policy if terminated without cause.
Montrose Environmental Group (MEG) furnished an update on its latest quarter. The company announced financial results for the fiscal quarter ended September 30, 2025 via a press release furnished as Exhibit 99.1.
The company also plans to reference an investor presentation during its conference call, with the materials available in the Presentations and Events section of its investor relations website. The disclosures under Items 2.02 and 7.01 are furnished to the SEC and are not deemed filed.