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American Century Companies Reduces Stake in Mirion Technologies
Investment firm sells 143,814 shares of radiation detection company
Mar. 4, 2026 at 8:10am
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American Century Companies Inc. has reduced its stake in Mirion Technologies, Inc. (NYSE:MIR) by 4.3%, selling 143,814 shares during the third quarter. The firm now owns 3,229,538 shares, or about 1.27% of the company's stock, valued at $75,119,000 at the end of the reporting period.
Why it matters
Mirion Technologies is a leading provider of radiation detection, measurement and monitoring solutions. The company's products are used in nuclear power, oil and gas, defense, and medical applications. American Century's reduced stake could signal a shift in investor sentiment or portfolio strategy, which could impact Mirion's stock price and future performance.
The details
According to a recent SEC filing, American Century Companies sold 143,814 shares of Mirion Technologies during the third quarter, reducing its total position to 3,229,538 shares. The investment firm now owns approximately 1.27% of Mirion's outstanding stock, down from 1.33% previously. Mirion Technologies went public in 2023 through a merger with a special purpose acquisition company (SPAC).
- American Century Companies sold the Mirion shares during the third quarter of 2026.
The players
American Century Companies Inc.
An investment management firm that owns a significant stake in Mirion Technologies.
Mirion Technologies, Inc.
A leading global provider of radiation detection, measurement and monitoring solutions for nuclear power, oil and gas, defense, and medical applications.
The takeaway
The reduction in American Century's Mirion Technologies stake could signal a broader shift in investor sentiment towards the radiation detection company, which may impact its stock price and future growth prospects. However, Mirion remains a significant player in its industry, and its long-term outlook will depend on factors such as market demand, competitive dynamics, and the company's ability to innovate and expand its product offerings.





