A detailed history of Massachusetts Financial Services CO transactions in Mirion Technologies, Inc. stock. As of the latest transaction made, Massachusetts Financial Services CO holds 5,391,772 shares of MIR stock, worth $134 Million. This represents 0.04% of its overall portfolio holdings.

Number of Shares
5,391,772
Previous 3,833,668 40.64%
Holding current value
$134 Million
Previous $82.5 Million 51.94%
% of portfolio
0.04%
Previous 0.03%

Shares

2 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Oct 29, 2025

BUY
$19.79 - $24.6 $30.8 Million - $38.3 Million
1,558,104 Added 40.64%
5,391,772 $125 Million
Q2 2025

Aug 08, 2025

BUY
$12.7 - $21.71 $48.7 Million - $83.2 Million
3,833,668 New
3,833,668 $82.5 Million

Others Institutions Holding MIR

About Mirion Technologies, Inc.


  • Ticker MIR
  • Exchange NYSE
  • Sector Industrials
  • Industry Specialty Industrial Machinery
  • Shares Outstandng 200,068,992
  • Market Cap $4.98B
  • Description
  • 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 qu...
More about MIR
Track This Portfolio

Track Massachusetts Financial Services CO Portfolio

Follow Massachusetts Financial Services CO and customize your updates to receive the information that matters most to you.

Portfolio Update

Get notified when there are updates to the investment portfolio of Massachusetts Financial Services CO , based on Form 13F filings with the SEC.

News

Stay updated on Massachusetts Financial Services CO with notifications on news.