MIR
MIRION TECH-A (MIR)
NYSE
$15.99+$0.005 (+0.03%)
Price as of Sep 11, 2026 7:30 PM EDT
  • $3.9B
    Market Cap
  • -29.70%
    1-Year Change
  • Specialty Industrial Machinery
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
15.73%
38.3M
+404,610 (+1.06%)
Jun 30, 2026
VANGUARD GROUP INC
12.47%
30.3M
-71,999 (-0.24%)
Dec 31, 2025
VANGUARD PORTFOLIO MANAGEMENT LLC
7.47%
18.2M
+274,128 (+1.51%)
Jun 30, 2026
N/A
7.47%
18.2M
+274,128 (+1.51%)
Jun 30, 2026
TUDOR INVESTMENT CORP ET AL
7.19%
17.5M
+17.5M (+100.00%)
Sep 30, 2025
BLACKROCK FUNDING, INC. /DE
6.62%
16.1M
+129,141 (+0.80%)
Dec 31, 2024
BLACKROCK INC.
6.50%
15.8M
+246,889 (+1.56%)
Jun 30, 2024

Current Ownership Distribution

  • Institutions3.6B (75.58%)
  • Mutual Funds1.1B (23.67%)
  • Insiders35.7M (0.75%)
  • Other0 (0.00%)

Insider Transactions

  • 0.75% (35.7M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $14.2M
    Amount of InsiderBuying (last 12 months)
  • 4
    Number of InsiderSelling (last 12 months)
  • $137.8M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Schopfer Brian
Chief Financial Officer
Buy
Sep 02, 2026
$312,000.00
20,000
$15.60
933,290
Moore Christopher A.
Chief Accounting Officer (PAO)
In Kind
Apr 01, 2026
$35,376.77
1,903
$18.59
30,557
Ulrich Alison
Chief Human Resources Officer
In Kind
Apr 01, 2026
$38,165.27
2,053
$18.59
36,235
Logan Thomas D
Chief Executive Officer
In Kind
Apr 01, 2026
$420,394.26
22,614
$18.59
364,060
Kingsley Lawrence D
Award
Mar 31, 2026
$19,121.28
1,104
$17.32
64,047
Schopfer Brian
Chief Financial Officer
Award
Mar 02, 2026
$0.00
64,906
$0.00
949,166
Eloy Loic
Nuclear & Safety President
Award
Mar 02, 2026
$0.00
15,577
$0.00
113,347
Schopfer Brian
Chief Financial Officer
In Kind
Mar 02, 2026
$615,863.39
28,499
$21.61
920,667
Ulrich Alison
Chief Human Resources Officer
Award
Mar 01, 2026
$0.00
5,552
$0.00
40,648
Lee Emmanuelle
Chief Legal Officer
Award
Mar 01, 2026
$0.00
11,568
$0.00
90,295
Moore Christopher A.
Chief Accounting Officer (PAO)
Award
Mar 01, 2026
$0.00
5,552
$0.00
33,857
Schopfer Brian
Chief Financial Officer
In Kind
Mar 01, 2026
$198,206.92
9,172
$21.61
884,260
Ulrich Alison
Chief Human Resources Officer
In Kind
Mar 01, 2026
$50,999.60
2,360
$21.61
38,288
Lee Emmanuelle
Chief Legal Officer
In Kind
Mar 01, 2026
$68,806.24
3,184
$21.61
87,111
Moore Christopher A.
Chief Accounting Officer (PAO)
In Kind
Mar 01, 2026
$30,189.17
1,397
$21.61
32,460
Kingsley Lawrence D
Award
Dec 31, 2025
$19,102.20
806
$23.70
62,943
Schopfer Brian
Chief Financial Officer
In Kind
Dec 27, 2025
$201,960.00
8,500
$23.76
893,432
Logan Thomas D
Chief Executive Officer
In Kind
Dec 27, 2025
$947,144.88
39,863
$23.76
3.3M
Kingsley Lawrence D
Sell
Nov 21, 2025
$7.1M
300,000
$23.83
3.9M
Eloy Loic
Nuclear & Safety President
Sell
Nov 11, 2025
$1.2M
45,000
$27.24
97,770
Lee Emmanuelle
Chief Legal Officer
Sell
Nov 10, 2025
$342,642.50
12,500
$27.41
84,640
Schopfer Brian
Chief Financial Officer
Award
Nov 06, 2025
$0.00
100,000
$0.00
1.0M
Schopfer Brian
Chief Financial Officer
Return
Nov 06, 2025
$0.00
100,000
$0.00
399,935
Schopfer Brian
Chief Financial Officer
Sell
Nov 06, 2025
$1.4M
50,000
$27.65
954,432
Schopfer Brian
Chief Financial Officer
Sell
Nov 06, 2025
$1.4M
50,000
$27.66
904,432
Schopfer Brian
Chief Financial Officer
Gift
Oct 30, 2025
$0.00
15,000
$0.00
904,432
Logan Thomas D
Chief Executive Officer
Gift
Oct 30, 2025
$0.00
106,188
$0.00
3.3M
Kingsley Lawrence D
Award
Sep 30, 2025
$19,116.50
850
$22.49
62,137
Logan Thomas D
Chief Executive Officer
Sell
Aug 12, 2025
$3.8M
175,000
$21.79
3.6M
Logan Thomas D
Chief Executive Officer
Sell
Aug 11, 2025
$6.9M
325,000
$21.31
3.7M