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Mirion Technologies, Inc.: what insiders have been doing
Mirion Technologies, Inc., classified in the Industry sector, is a listed company based in Atlanta, United States. Its insiders report their share dealings to SEC (Form 4). Over the twelve months to 18 October 2026, 38 filings were filed, from 13 insiders.
The flow runs one way only: 4 sales worth €15.0M, from 3 insiders, and no purchase. One trade stands out by size: a sale of €7.4M from Kingsley Lawrence D, disclosed on 12 December 2025.
Across the 5,814 companies tracked on its exchange, the median is 19 filings; at 38 filings, this issuer sits above that mark. Our records for Mirion Technologies, Inc. go back to 2021, with no purchases and 14 sales on the open market in total. For the fiscal year to 31 December 2025, the annual 10-K puts revenue at 925.4 m USD and net income at 28.8 m USD.
Typically, a trade is published a median of 2 days after it takes place. Section 16 rules allow two business days to file each Form 4. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification.
Other companies in the same sector with recent insider buying flagged by our signals: Tennant Co and Butler National Corp. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Insider Decl.
209
Thresholds
n/a
Buy Volume
n/a
n/a
Sell Volume
€107M
14 ops. · all time
Who traded when
BuySaleLawrence D. Kingsley3 sales
Loic Eloy3 sales
Emmanuelle Lee1 sale
Thomas D. Logan1 sale
Analyst consensus: bullish or bearish?
Analysts rate Mirion Technologies, Inc. Strong Buy (bullish), based on 11 analysts. Average price target: US$24.00.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 17,124 of 24,148 companies
37.6
score / 100
Value36
Quality39
FCF yld2.8%
Earn yld0.8%
EV/EBITDA23.5x
ROE1.5%
Gross mgn47%
Net mgn3.1%
Debt/EBITDA5.8x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$15.90
Analyst consensus
11 analystsStrong buy
US$20.00Target US$24.00(+51%)US$29.00
Income statement
RevenueUS$925.4M
Gross profitUS$438.6M47% margin
EBITDAUS$212.9M23% margin
Net incomeUS$28.8M2.4% margin
Valuation
PER (trailing)176.7x
PER (forward)23.6x
P/Book2.1x
Beta1.10
Balance sheet & cash
Market capUS$4B
Total debtUS$1.2B
Free Cash FlowUS$106.9M
Debt / Equity66%
Profitability & ownership
ROE1.5%
ROA1.4%
% insiders3.4%
% institutions114.3%
Last declaration on 30 September 2026
Declarations209 total
1,333 shares@ US$14.340.0005% mcap1.3% of flowClass A Common StockSEC:0001628280-26-063985:0
1,333 shares@ US$14.340.0005% mcap100.0% of flowClass A Common StockSEC:0001628280-26-063983:0
1,095 sharesClass A Common StockSEC:0001628280-26-046239:0
7,383 shares0Class A Common StockSEC:0001628280-26-035088:0
7,383 shares0Class A Common StockSEC:0001628280-26-035086:0
7,383 shares0Class A Common StockSEC:0001628280-26-035090:0
7,383 shares0Class A Common StockSEC:0001628280-26-035096:0
7,383 shares0Class A Common StockSEC:0001628280-26-035097:0
7,383 shares0Class A Common StockSEC:0001628280-26-035092:0
7,383 shares0Class A Common StockSEC:0001628280-26-035094:0
1,104 shares@ US$17.321.3% of flowClass A Common StockSEC:0001628280-26-023160:0
4,680 shares@ US$18.59100.0% of flowClass A Common StockSEC:0001628280-26-023163:0
22,614 shares@ US$18.59100.0% of flowClass A Common StockSEC:0001628280-26-023169:0
1,903 shares@ US$18.59100.0% of flowClass A Common StockSEC:0001628280-26-023173:0
7,377 shares@ US$18.59100.0% of flowClass A Common StockSEC:0001628280-26-023177:0
2,053 shares@ US$18.59100.0% of flowClass A Common StockSEC:0001628280-26-023183:0
20,650 shares@ US$21.613.6% of flowClass A Common StockSEC:0001628280-26-013814:0
5,552 shares0Class A Common StockSEC:0001628280-26-013817:0
9,172 shares@ US$21.6114.4% of flowClass A Common StockSEC:0001628280-26-013818:0
5,552 shares0Class A Common StockSEC:0001628280-26-013816:0
11,568 shares0Class A Common StockSEC:0001628280-26-013815:0
806 shares@ US$23.700.1% of flowClass A Common StockSEC:0001628280-26-000405:0
39,863 shares@ US$23.767.7% of flowClass A Common StockSEC:0001628280-25-058982:0
8,500 shares@ US$23.7614.6% of flowClass A Common StockSEC:0001628280-25-058980:0
25 of 209 declarations
About Mirion Technologies, Inc.
Mirion Technologies, Inc. (ticker: MIR) is a U.S.-based company listed on the NYSE, in the United States. It is a specialist in radiation detection, measurement, analysis, and monitoring, serving highly regulated end markets where safety, accuracy, and compliance are central to purchasing decisions. For investors, Mirion stands out as a niche industrial technology business with exposure to long-duration themes in nuclear energy, healthcare, and defense. The company is headquartered in Atlanta, Georgia, and reports roughly 2,800 employees across 12 countries, underscoring a meaningful international footprint.
Mirion’s current corporate structure was shaped by the business combination completed in October 2021, when GS Acquisition Holdings Corp II was renamed Mirion Technologies, Inc. and the company’s Class A common stock began trading on the NYSE under MIR. While the listed entity is relatively recent, the operating heritage behind Mirion is older and rooted in radiation safety technologies. That history matters: the company operates in a technically demanding field where product reliability, regulatory know-how, and long customer qualification cycles create meaningful barriers to entry.
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The business is organized into two reportable segments: Medical and Technologies. The Medical segment provides radiation oncology quality assurance, patient safety solutions for diagnostic imaging and radiation therapy centers, dosimetry products to track medical staff exposure, and radionuclide therapy solutions for nuclear medicine applications, including shielding, product handling, and medical imaging furniture. The Technologies segment focuses on defense, nuclear power, laboratories, and research, offering field-ready personal radiation detection and identification devices, along with radiation measurement and analysis tools for the full nuclear power plant lifecycle, including new builds, maintenance, decontamination, decommissioning, and remote environmental monitoring.
From a competitive standpoint, Mirion benefits from a specialized product set and customer base that value precision, service continuity, and compliance. Its markets are not immune to capital spending cycles, but they tend to be supported by structural needs such as nuclear safety, healthcare quality, and defense readiness. The company’s broad installed base and technical depth can help support recurring demand for upgrades, replacement, and service-related activity.
Geographically, Mirion operates in the United States, Canada, the United Kingdom, France, Germany, Finland, China, Belgium, the Netherlands, Estonia, and Japan. This diversified presence supports both customer proximity and access to major nuclear and medical markets.
Recent developments have been notable. Mirion reported first-quarter 2026 results on April 28, 2026. In March 2026, the company announced that its Crew Active Dosimeters would be worn by astronauts on NASA’s Artemis II mission, a high-visibility endorsement of its technology platform. In February 2026, Mirion released fourth-quarter and full-year 2025 results and provided full-year 2026 guidance. In September 2025, it announced a proposed $250 million offering of convertible senior notes due 2031, highlighting active capital-markets management as it continues to invest in growth and strategic flexibility.
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