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.
Montrose Environmental Group Chief Strategy Officer Jose Revuelta reported multiple equity transactions in early March 2026. He exercised stock options for 42,668 shares on March 4, 2026 and 60,000 shares on March 3, 2026, converting them into common stock at an exercise price of $6.03 per share.
On each date, he then disposed of 42,668 and 60,000 common shares, respectively, in sales at weighted average prices of $27.56 and $28.37. Footnotes state these shares were sold in multiple transactions within price ranges of $27.50–$27.56 and $28.13–$28.495. After these moves, he directly holds 269,282 common shares and 35,207 stock options.
Montrose Environmental Group director J. Thomas Presby reported a same-day option exercise and share sales. He exercised stock options for 10,000 shares of common stock at a price of $9.76 per share. He then sold 9,541 shares at a weighted average price of $28.82 and 459 shares at a weighted average price of $29.89, with actual sale prices ranging from $28.55 to $29.905. After these transactions, he directly owned 62,614 shares of Montrose common stock.
Montrose Environmental Group General Counsel and Secretary Nasym Afsari exercised options and sold shares in a planned transaction. On March 3, 2026, Afsari exercised a stock option for 43,348 shares and received common stock at $6.03 per share, then sold 43,348 shares at a weighted average price of $28.368 per share. On March 2, 2026, Afsari also sold 200 shares at $30.00 per share. The weighted average sale price on March 3 reflects multiple trades between $28.13 and $28.495. After these transactions, Afsari directly owned 204,878 shares of Montrose common stock. The sales were made under a Rule 10b5-1 trading plan.
MEG reported an insider sale notice under Form 144 for 60,000 common shares by Jose M. Revuelta Gonzalez, with the sale date listed as 03/03/2026 and aggregate consideration of $1,680,072. The filing also references an option grant dated 06/23/2016.
MEG filed a Form 144 reporting an intended sale of 43,348 common shares through Fidelity Brokerage Services LLC on 03/03/2026. The filing also records a prior sale of 200 common shares by Nasym Afsari on 03/02/2026 for $6,000.00.
Montrose Environmental Group files its annual report describing a diversified environmental services platform built around three segments: Assessment, Permitting and Response (37.0% of 2025 revenue), Measurement and Analysis (29.6%) and Remediation and Reuse (33.4%). The company emphasizes non‑discretionary, regulation-driven demand, noting that clients generating approximately 96% of 2024 revenue repeated in 2025 and that total revenue has grown at a 20.4% compounded annual growth rate since 2020.
Montrose operates in a highly fragmented, $1.9 trillion global environmental market that EBI estimates will include a $620.0 billion U.S. segment growing about 4.0% annually from 2026 through 2028. The company highlights competitive advantages in advanced testing, patented treatment technologies and an integrated service model, supported by more than 70 acquisitions since inception and 3,500 employees across the U.S., Canada and Australia.
The filing also outlines significant risk factors, including exposure to cyclical end markets, intense competition, reliance on complex regulations, safety and emergency-response hazards, customer concentration tied to major events, acquisition execution risk, evolving ESG expectations and extensive environmental and government-contracting compliance requirements.
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.