Welcome to our dedicated page for Montrose Environmental Group SEC filings (Ticker: MEG), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Onterris filings document the regulatory record for the environmental solutions company formerly known as Montrose Environmental Group. Recent Form 8-K reports furnish quarterly and annual results, Regulation FD investor materials, financial guidance commentary and operating themes such as emergency response revenue, project activity, cash flow and leverage.
The company's filings also record corporate governance and capital-structure matters, including the Delaware name-change amendment, conforming bylaws, continued NYSE listing under the new Onterris identity, annual proxy disclosures, executive compensation, officer appointments and the full redemption of Series A-2 Preferred Stock. These disclosures describe formal changes to corporate identity, governance rights, common stock terms and board-related matters.
Onterris, Inc. Chief Strategy Officer Jose Revuelta exercised stock options to acquire 27,349 shares of Common Stock at $6.03 per share. The underlying Stock Option (Right to Buy) for 27,349 shares was fully exercised, reducing its balance to zero. Following the transaction on May 11, 2026, Revuelta directly holds 296,631 shares of Common Stock. The footnote explains that 50% of the option vested on June 9, 2017 and the remaining 50% vested on June 9, 2019, indicating this was an exercise of long‑vested awards rather than a new grant.
Onterris, Inc. Chief Financial Officer Allan Dicks reported an open-market purchase of 6,535 shares of Common Stock at $15.36 per share. Following this transaction on May 11, 2026, he directly holds 218,178 shares of the company’s stock.
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.
MONTROSE ENVIRONMENTAL GROUP INC disclosure: Goldman Sachs Asset Management, L.P. reports beneficial ownership of 1,826,307 shares of Common Stock, representing 5.0% of the class as shown on the cover page, with shared voting power of 1,549,150 shares as of 03/31/2026. The filing is a Schedule 13G joint filing executed under a Joint Filing Agreement dated 04/03/2026.
Onterris, Inc. reported a Q1 2026 net loss of $12.7 million, an improvement from $19.4 million a year earlier, as operating performance strengthened despite lower sales. Revenue declined 5.2% to $168.5 million, mainly due to reduced environmental emergency response work and softer Measurement and Analysis activity.
Cost controls helped narrow the operating loss to $6.1 million, with cost of revenues and selling, general and administrative expenses both down year over year. Operating cash flow swung to an outflow of $11.6 million, while total debt rose to $321.4 million and cash ended at $10.0 million.
The company rebranded from Montrose Environmental Group to Onterris and realigned into two segments: Consulting and Treatment and Measurement and Analysis. It also repurchased 376,313 shares for about $10.0 million, leaving roughly $30.0 million available under its buyback program.
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 Inc: An amended Schedule 13G/A from The Vanguard Group states it beneficially owns 0 shares of common stock, representing 0% of the class. The amendment explains an internal realignment and disaggregation of certain subsidiaries under SEC Release No. 34-39538, which led those entities to report separately. The filing is signed by Ashley Grim, Head of Global Fund Administration.
Montrose Environmental Group, Inc. is asking stockholders to vote at its 2026 virtual annual meeting on May 6, 2026. Owners of common stock at the close of business on March 12, 2026 can attend online and vote.
Stockholders are being asked to elect three directors — Vincent P. Colman, Peter M. Graham and Richard E. Perlman — each for a one-year term as the company phases in annual elections and completes board declassification by 2028. They will also vote on ratifying Deloitte & Touche LLP as independent auditor for the year ending December 31, 2026 and on a non-binding advisory resolution approving named executive officer compensation.
The proxy highlights a predominantly independent board, separate chair and CEO roles, formal board and committee evaluation processes, and active stockholder engagement. It also details sustainability and human capital priorities, including Science Based Targets initiative–validated greenhouse gas reduction goals toward net-zero across the value chain by 2040 and expanded employee development, safety, and retention programs.