Welcome to our dedicated page for Mirion Technologies SEC filings (Ticker: MIR), 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.
This page provides access to U.S. Securities and Exchange Commission (SEC) filings for Mirion Technologies, Inc. (NYSE: MIR), a global provider of radiation detection, measurement, analysis, and monitoring solutions to nuclear, medical, defense, and research end markets. These filings offer detailed information on Mirion’s capital structure, financing arrangements, acquisitions, and periodic financial reporting.
Investors can review current reports on Form 8-K that Mirion files to disclose material events. In 2025, the company filed multiple 8-Ks describing an Equity Purchase Agreement to acquire, and later the completion of the acquisition of, the indirect parent of Paragon Energy Solutions. Other 8-Ks outline an underwriting agreement for a public offering of Class A common stock, the completion and terms of a private offering of Convertible Senior Notes due 2031, and amendments to the company’s credit agreement that establish a new tranche of term loans maturing in 2032 to refinance existing term loans.
Mirion also files 8-Ks to furnish quarterly earnings press releases, such as those announcing financial results for quarters ended June 30 and September 30, 2025. While these furnished materials are not deemed filed for certain liability purposes, they give context on revenue trends, profitability metrics, and guidance updates that complement the company’s periodic reports on Forms 10-K and 10-Q.
Through this filings page, users can follow Mirion’s use of equity and convertible debt financing, its acquisition-related disclosures, and its credit agreement refinancings. Stock Titan’s tools can help surface key points from lengthy documents, such as the main terms of convertible notes, conditions in acquisition agreements, or significant covenants and events of default in indentures and credit facilities. This makes it easier to understand how Mirion structures its obligations and reports material developments affecting MIR shareholders.
MIR submitted a Rule 144 notice describing proposed sales of common stock tied to restricted stock grants. The filing lists multiple restricted stock lots dated 04/01/2025 and 04/01/2026 with quantities 3,628, 3,637 and 1,135 shown. The broker/placement agent is Morgan Stanley Smith Barney LLC.
Mirion Technologies Chief Executive Officer Thomas D. Logan reported a bona fide gift of Class A shares. On May 6, 2026, he gifted 311,851 shares of Class A Common Stock to the Logan Family Trust and received no consideration for this transfer.
Following the gift, he directly holds 52,209 shares of Class A Common Stock and 1,544,017 shares of Class B Common Stock. The Logan Family Trust now holds 3,517,229 shares of Class A Common Stock, reported as indirect ownership.
Mirion Technologies Inc ownership filing shows Vanguard Capital Management beneficially owns 12,327,150 shares of common stock, representing 5.03% of the class. The filing states Vanguard has sole dispositive power over 12,327,150 shares and sole voting power for 1,821,955 shares.
Mirion Technologies, Inc. reports Q1 2026 results with total revenues of $257.6 million, up from $202.0 million a year earlier, driven by higher product and service sales. Product revenue reached $197.0 million and service revenue $60.6 million.
The company posted a modest net loss attributable to Mirion of $3.4 million, or $(0.01) per share, compared with net income of $0.3 million in Q1 2025, as higher gross profit was more than offset by increased operating expenses, foreign currency losses and interest costs.
Mirion ended the quarter with $397.9 million in cash and cash equivalents and total debt of $451.6 million plus $775.0 million of convertible notes. Goodwill and intangible assets totaled over $2.4 billion, largely reflecting recent acquisitions such as Paragon and Certrec, while remaining performance obligations were about $1.1 billion, providing multi‑year revenue visibility.
Vanguard Portfolio Management reports beneficial ownership of 18,118,998 shares of Mirion Technologies Inc common stock, representing 7.40% of the class. The filing shows sole dispositive power over 18,118,998 shares and sole voting power for 213,276 shares.
The filing states these holdings include securities held by Vanguard funds and managed accounts and is signed by Ashley Grim on 04/29/2026.
Mirion Technologies reported strong first quarter 2026 results with revenues rising 27.5% to $257.6 million, driven by both product and service growth. First quarter orders reached $288 million including acquisitions, up 42% from the same period in 2025, reflecting robust demand, especially in nuclear power markets.
The company posted a small GAAP net loss of $3.4 million or $(0.01) per share, while maintaining Adjusted EBITDA of $54.3 million, up 16.3% year over year, with a 21.1% margin. Mirion reaffirmed 2026 guidance for revenue growth of approximately 22%–24%, Organic Revenue growth of 5%–7%, Adjusted EBITDA of $285–$300 million, and Adjusted Free Cash Flow of $155–$175 million, while trimming Adjusted EPS guidance to $0.48–$0.55 to reflect a one-time CEO retention option grant.
Mirion Technologies, Inc. approved a special one-time grant of performance-vesting stock options to Founder, Chairman and CEO Thomas Logan. He received a target of 2,500,000 performance stock options with a seven-year term, split into two tranches measured over three- and four-year periods.
Vesting depends on both his continued service and the Company’s total shareholder return relative to the Russell 2000 (excluding financial services and insurance). Payout ranges from 0% to 150% of target, with threshold performance at the 60th percentile and a one-year holding period after vesting. Mirion expects non-cash charges from this award to be reflected in its next earnings guidance.
Mirion Technologies Chief Human Resources Officer Alison Ulrich had 2,053 shares of Class A common stock withheld on April 1, 2026 to cover tax obligations from vesting restricted stock units. The shares were valued at $18.59 each. After this non-discretionary tax-withholding transaction, she directly holds 36,235 shares of Mirion common stock.
Mirion Technologies, Inc. Chief Financial Officer Brian Schopfer reported a routine tax-related share withholding. On April 1, 2026, 7,377 shares of Class A Common Stock were withheld at $18.59 per share to satisfy tax obligations tied to vesting restricted stock units.
The company’s policy mandated this withholding, and it was not a discretionary trade by Schopfer. After this transaction, he directly holds 913,290 Class A shares and 399,935 Class B shares, indicating the disposition was small relative to his overall stake.
Mirion Technologies, Inc. Chief Accounting Officer Christopher A. Moore reported a routine share disposition tied to equity compensation. On April 1, 2026, 1,903 shares of Class A common stock were withheld at $18.59 per share to satisfy tax withholding obligations from vesting restricted stock units.
The company’s policy required this withholding, so it was not a discretionary market trade. After this tax-related disposition, Moore directly held 30,557 shares of Mirion Technologies Class A common stock.