Institutional shares held 185 Million
1.81M calls
114K puts
Total value of holdings $2.56B
$25M calls
$1.57M puts
Market Cap $2.76B
200,068,992 Shares Out.
Institutional ownership 92.55%
# of Institutions 244


Latest Institutional Activity in MIR

Top Purchases

Q1 2025
Exchange Traded Concepts, LLC Shares Held: 134K ($1.85M)
Q1 2025
Sg Americas Securities, LLC Shares Held: 19K ($262K)
Q1 2025
Versant Capital Management, Inc Shares Held: 1.16K ($16K)
Q1 2025
Simon Quick Advisors, LLC Shares Held: 24.7K ($341K)
Q1 2025
Global Financial Private Client, LLC Shares Held: 494 ($6.82K)

Top Sells

Q1 2025
Rhumbline Advisers Shares Held: 307K ($4.24M)
Q1 2025
Integrated Advisors Network LLC Shares Held: 11.3K ($156K)
Q1 2025
Gamma Investing LLC Shares Held: 502 ($6.93K)
Q1 2025
Central Pacific Bank Trust Division Shares Held: 2.5K ($34.5K)
Q4 2024
Goldman Sachs Group Inc Shares Held: 8.88M ($122M)

About MIR

Mirion Technologies, Inc. provides radiation detection, measurement, analysis, and monitoring products and services in the United States, Canada, the United Kingdom, France, Germany, Finland, China, Belgium, Netherlands, Estonia, and Japan. It operates through two segments, Medical and Industrial. The medical segment offers radiation oncology quality assurance and dosimetry solutions; patient safety solutions for diagnostic imaging and radiation therapy centers; radiation therapy quality assurance solutions for calibrating and verifying imaging and treatment accuracy; and radionuclide therapy products for nuclear medicine applications, such as shielding, product handling, medical imaging furniture, and rehabilitation products. This segment supports applications in medical diagnostics, cancer treatment, practitioner safety, and rehabilitation. The Industrial segment focuses on addressing critical radiation safety, measurement, and analysis applications; and provides personal radiation detection, identification equipment, and analysis tools. The company's products and solutions also include nuclear medicines, dosimeters, contamination and clearance monitors, reactor instrumentation and control equipment and systems, medical and industrial imaging systems and related accessories, alpha spectroscopy instruments, alpha/beta counting instruments, and gamma spectroscopy detector systems; and electrical penetration, cancer diagnostics, software, and other services. It serves hospitals, clinics and urgent care facilities, dental and veterinary offices, radiation treatment facilities, OEMs for radiation therapy, laboratories, military organizations, government agencies, industrial companies, power and utility companies, reactor design firms, and NPPs. The company was formerly known as Global Monitoring Systems, Inc. and changed its name to Mirion Technologies, Inc. in January 2006. Mirion Technologies, Inc. was incorporated in 2005 and is headquartered in Atlanta, Georgia.


Insider Transactions at MIR

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
11.3M Shares
From 17 Insiders
Grant, award, or other acquisition 422K shares
Conversion of derivative security 8.1M shares
Bona fide gift 1.05M shares
Other acquisition or disposition 1.77M shares
Sell / Disposition
4.69M Shares
From 13 Insiders
Bona fide gift 4.21M shares
Payment of exercise price or tax liability 263K shares
Open market or private sale 148K shares
Conversion of derivative security 73.4K shares

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P - Open market or private purchase×
S - Open market or private sale×
V - Transaction voluntarily reported earlier than required×
A - Grant, award, or other acquisition×
D - Sale (or disposition) back to the issuer×
F - Payment of exercise price or tax liability×
I - Discretionary transaction×
M - Exercise of conversion of derivative security×
C - Conversion of derivative security×
E - Expiration of short derivative position×
H - Expiration (or cancellation) of long derivative position with value received×
O - Exercise of out-of-the-money derivative securities×
X - Exercise of in-the-money or at-the-money derivatives securities×
G - Bona fide gift×
L - Small Acquisition×
W - Acquisition or disposition by will or laws×
Z - Deposit into or withdrawal from voting trust×
J - Other acquisition or disposition×
K - Transaction in equity swap or similar instrument×
U - Disposition due to a tender of shares in a change of control transaction×
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