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.
Mirion Technologies, Inc. filings document operating results, executive compensation, proxy matters and financing arrangements for a radiation detection, measurement, analysis and monitoring company serving nuclear, medical, defense and research markets. Form 8-K reports furnish financial-results releases, guidance updates, material definitive agreements, credit-agreement refinancing activity and other material events.
Proxy filings disclose governance and compensation subjects, including equity-award tables, pay-versus-performance information and a performance-vesting stock option award for the company's chief executive officer. The filing record also covers debt terms at operating subsidiaries and material-event disclosures tied to changes in the company's nuclear technology portfolio.
Mirion Technologies Chief Legal Officer Emmanuelle Lee reported equity transactions involving Mirion Class A and Class B shares. On March 1, 2026, she received a grant of 11,568 shares of Class A Common Stock at $0 per share, described in a footnote as restricted stock units that vest in three equal annual installments starting on March 1, 2027, subject to continued employment.
On the same date, 3,184 Class A shares were disposed of at $21.61 per share to satisfy tax withholding obligations on previously granted RSUs under a pre‑adopted company policy, characterized as a non‑discretionary tax-withholding disposition. Following these transactions, Lee directly owned 87,111 Class A shares and 138,193 Class B shares. An additional 32,748 Class B shares are held by the Lee Revocable Living Trust for the benefit of Lee, her spouse, and other beneficiaries, with Lee disclaiming ownership beyond her pecuniary interest.
Mirion Technologies, Inc. Chief Executive Officer Thomas D. Logan reported multiple equity transactions in Class A Common Stock. He received a grant or award of 318,632 shares at $0.00 per share, tied to the settlement of previously granted performance-based restricted stock units.
To satisfy tax withholding obligations on vesting RSUs and PSUs under a pre-adopted company policy, the issuer withheld 127,184 shares and 20,650 shares at $21.61 per share; these withholdings are not discretionary trades by Logan. He also made a bona fide gift of 3,093,812 shares to the Logan Family Trust for no consideration.
Following these transactions, Logan directly owns 386,674 shares of Class A Common Stock and holds additional shares indirectly through the Logan Family Trust, which is reported with 3,205,378 shares of indirect ownership.
Mirion Technologies, Inc. provides an in-depth annual overview of its nuclear and medical radiation safety businesses, global footprint and risk profile. The company operates through Nuclear & Safety and Medical segments, serving nuclear power plants, defense, laboratories, hospitals and cancer centers worldwide.
Mirion reports remaining performance obligations of $1,104.3 million and deferred contract revenue of $112.3 million as of December 31, 2025, with about 49% expected to turn into revenue in 2026. Research and development expenses were $38.9 million in 2025, supporting a 534-person R&D team.
The company notes net income of $29.8 million in 2025 versus prior-year losses and an accumulated deficit of $512.7 million. It highlights growth opportunities in small modular reactors, cancer care, dosimetry services and software, alongside detailed risk factors including geopolitical tensions, supply chain challenges, long sales cycles, fixed-price contracts and extensive regulatory oversight.
T. Rowe Price Investment Management, Inc. filed an amended Schedule 13G reporting beneficial ownership of 15,112,855 shares of Mirion Technologies Inc. common stock, representing 6.1% of the class as of 12/31/2025. The firm reports sole voting power over 15,076,254 shares and sole dispositive power over 15,112,855 shares, with no shared voting or dispositive power.
T. Rowe Price states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Mirion. It also affirms that the filing should not be construed as an admission that it is the beneficial owner of the securities.
Mirion Technologies reported solid growth for 2025 and issued strong 2026 guidance. Full-year revenues rose to $925.4 million from $860.8 million, with net income improving to $29.8 million from a loss of $36.6 million. Adjusted EBITDA increased to $227.9 million, with margin rising to 24.6%.
Fourth-quarter revenue grew 9.1% to $277.4 million, while GAAP net income was $17.8 million and adjusted EBITDA reached $77.6 million. For 2026, Mirion expects total revenue growth of 22–24%, organic revenue growth of 5–7%, adjusted EBITDA of $285–$300 million, adjusted free cash flow of $155–$175 million, and adjusted EPS of $0.50–$0.57.
The company ended 2025 with $415.2 million in cash, up from $175.6 million, after issuing $755.0 million of convertible senior notes and $425.0 million of common stock and funding $661.9 million of acquisitions. Net cash from operating activities rose to $143.3 million. Basic GAAP EPS for 2025 was $0.13, while full-year adjusted EPS was $0.46.
Kuwait Investment Authority (KIA), acting for the Government of the State of Kuwait, reports beneficial ownership of 10,171,591 shares of Mirion Technologies, Inc. Class A common stock as of January 19, 2026.
This represents 4.10% of Mirion’s Class A shares, based on 247,821,635 shares outstanding as of October 22, 2025. KIA has sole power to vote and dispose of all 10,171,591 shares and no shared voting or dispositive power.
KIA’s Mirion holdings were 10,000,000 shares as of December 31, 2022, 10,041,458 shares as of December 31, 2023, and 10,171,591 shares as of December 31, 2024, indicating gradual increases in absolute share count. KIA certifies that the securities are not held to change or influence control of Mirion, but as a passive investment.
Mirion Technologies, Inc. reported an insider stock transaction by one of its directors. On 12/31/2025, the director received 806 shares of Class A common stock, coded as an acquisition. The shares were issued as payment for the director’s quarterly retainer, which the director elected to take in vested stock rather than cash.
After this issuance, the director beneficially owns 62,943 Class A shares directly and an additional 3,509,075 shares indirectly through the Lawrence D. Kingsley Revocable Trust. This filing records the updated ownership levels and the use of stock instead of cash for board compensation.
Mirion Technologies, Inc. CEO and director Thomas D. Logan reported an automatic share withholding related to equity compensation. On 12/27/2025, 39,863 shares of Class A common stock were withheld by the company at a price of $23.76 per share to satisfy tax obligations arising from the vesting of previously granted restricted stock units. After this tax withholding event, Logan directly beneficially owned 3,309,688 shares of Class A common stock and 1,544,017 shares of Class B common stock, and indirectly owned 111,566 shares of Class A common stock through the Logan Family Trust. The filing notes that the withholding followed a pre-adopted company policy and did not represent a discretionary trade by Logan.
Mirion Technologies, Inc. Chief Financial Officer Brian Schopfer reported an automatic share withholding tied to equity compensation. On 12/27/2025, 8,500 shares of Class A common stock were withheld by the company to cover tax obligations arising from the vesting of previously granted restricted stock units. The filing notes this withholding was mandated under a pre-adopted company policy and did not involve a discretionary trade by the executive.
Following this transaction, Schopfer beneficially owned 893,432 shares of Class A common stock and 399,935 shares of Class B common stock, all held directly.
Mirion Technologies, Inc. reported an insider equity transaction by its Chief Legal Officer, Emmanuelle Lee. On 12/27/2025, 5,913 shares of Class A common stock were withheld at a price of $23.76 per share to cover tax obligations arising from the vesting of previously granted restricted stock units. This withholding was mandated by company policy and is not a discretionary trade. Following this transaction, Lee beneficially owned 78,727 shares of Class A common stock directly and 138,193 shares of Class B common stock directly. An additional 32,748 shares of Class B common stock are held indirectly through the Lee Revocable Living Trust for the benefit of Lee, Lee’s spouse, and other beneficiaries, with Lee disclaiming ownership beyond her pecuniary interest.