Mirion Technologies, Inc.

Adjusted EBITDA is defined as net income before interest expense, income tax expense, depreciation and amortization adjusted to remove the impact of foreign currency gains and losses, amortization of acquired intangible assets, changes in the fair value of warrants, certain non-operating expenses (restructuring and costs to achieve operational synergies, merger, acquisition and divestiture expenses and IT project implementation expenses), stock-based compensation expense, debt extinguishment and income tax impacts of these adjustments.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

Adjusted net income is defined as GAAP net income adjusted for foreign currency gains and losses, amortization of acquired intangible assets, changes in the fair value of warrants, certain non-operating expenses (restructuring and costs to achieve operational synergies, merger, acquisition and divestiture expenses and IT project implementation expenses), stock-based compensation expense (2025 and prior), debt extinguishment and income tax impacts of these adjustments.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

Net leverage is defined as Net Debt (debt minus cash and cash equivalents) divided by Adjusted EBITDA plus contributions to Adjusted EBITDA if acquisitions made during the applicable period had been made before the start of the applicable period.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

These forward-looking statements include but are not limited to, statements regarding our future operating results, financial position and guidance, our backlog and order potential, our business strategy and plans, our objectives for future operations, macroeconomic trends, trends in cancer care, nuclear power and small modular reactor industries, foreign exchange, interest rate and inflation expectations and any future mergers, acquisitions, divestitures and strategic investments, including the completion and integration of previously completed transactions.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

-Israel-Iran conflict), tariffs, sanctions, export controls, trade restrictions or other trade and supply chain disruptions, and risks of slowing economic growth or economic recession in the United States and globally developments in the government budgets (defense and non-defense) in the United States and other countries, including budget reductions, sequestration, implementation of spending limits or changes in budgetary priorities, delays in the government budget process, a U.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

-Israel-Iran conflict), tariffs, sanctions, export controls, trade restrictions or other trade and supply chain disruptions, and risks of slowing economic growth or economic recession in the United States and globally developments in the government budgets (defense and non-defense) in the United States and other countries, including budget reductions, sequestration, implementation of spending limits or changes in budgetary priorities, delays in the government budget process, a U.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

The Company s guidance contains forward-looking statements and actual results may differ materially as a result of known and unknown uncertainties and risks, including those set forth below under the heading Forward-Looking Statements.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

Further information on risks, uncertainties and other factors that could affect our financial results are included in the filings we make with the United States Securities and Exchange Commission (the SEC ) from time to time, including under the headings Risk Factors and Management s Discussion and Analysis of Financial Condition and Results of Operations in our most recent Annual Report on Form 10-K and our subsequently filed Quarterly Reports on Form 10-Q.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

You should not rely on these forward-looking statements, as actual outcomes and results may differ materially from those contemplated by these forward-looking statements as a result of such risks and uncertainties.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

Guidance direction — prior quarter: Reiterated; this quarter: Raised

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

Revenue — prior quarter passage and this quarter's passage are both cited.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026

GAAP net income — prior quarter passage and this quarter's passage are both cited.

SEC original ↗Mirion Technologies, Inc. — Earnings release (8-K exhibit)EX-99Oct 27, 2026