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Mirion Technologies

360 hedge funds and large institutions have $4.71B invested in Mirion Technologies in 2026 Q1 according to their latest regulatory filings, with 60 funds opening new positions, 136 increasing their positions, 131 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed

660% more call options, than puts

Call options by funds: $76.6M | Put options by funds: $10.1M

1.84% more ownership

Funds ownership: 101.77%103.61% (+1.8%)

5% more first-time investments, than exits

New positions opened: 60 | Existing positions closed: 57

4% more repeat investments, than reductions

Existing positions increased: 136 | Existing positions reduced: 131

0% more funds holding in top 10

Funds holding in top 10: 66 (0)

1% less funds holding

Funds holding: 365360 (-5)

20% less capital invested

Capital invested by funds: $5.91B → $4.71B (-$1.19B)

Holders
360
Holders Change
-5
Holders Change %
-1.37%
% of All Funds
4.43%
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.07%
New
60
Increased
136
Reduced
131
Closed
57
Calls
$76.6M
Puts
$10.1M
Net Calls
+$66.6M
Net Calls Change
-$122M
Name Holding Trade Value Shares
Change
Change in
Stake
TG
26
TCW Group
California
$41.6M -$4.83M -214,153 -9%
AllianceBernstein
27
AllianceBernstein
Tennessee
$38.7M +$30.1M +1,332,930 +416%
Franklin Resources
28
Franklin Resources
California
$37.1M +$2.68M +119,021 +6%
Royal Bank of Canada
29
Royal Bank of Canada
Ontario, Canada
$36.5M -$4.21M -186,580 -9%
N
30
Nuveen
North Carolina
$36.3M -$1.42M -62,920 -3%
CCA
31
Conestoga Capital Advisors
Pennsylvania
$34M -$2.43M -107,830 -6%
Citadel Advisors
32
Citadel Advisors
Florida
$33.9M +$4.57M +202,459 +12%
VFT
33
Vanguard Fiduciary Trust
Pennsylvania
$31.5M +$38.2M +1,694,538 New
C
34
Chescapmanager
Maryland
$30.8M
Massachusetts Financial Services
35
Massachusetts Financial Services
Massachusetts
$29.5M -$46.8M -2,074,220 -57%
TCA
36
Troluce Capital Advisors
Puerto Rico
$27.9M +$14.7M +650,000 +76%
Rockefeller Capital Management
37
Rockefeller Capital Management
New York
$25.9M +$5.72M +253,687 +22%
EA
38
Emerald Advisers
Pennsylvania
$25.7M +$5.51M +244,428 +21%
SIMG
39
Stephens Investment Management Group
Texas
$25.6M +$12.7M +564,933 +70%
Bank of America
40
Bank of America
North Carolina
$25.2M -$80.6K -3,572 -0.3%
DKCM
41
Davidson Kempner Capital Management
New York
$24.4M +$8.71M +386,306 +42%
Brown Advisory
42
Brown Advisory
Maryland
$24.2M -$7.06M -312,978 -19%
TCM
43
TimesSquare Capital Management
New York
$24.1M +$7.37M +326,904 +34%
Ameriprise
44
Ameriprise
Minnesota
$24M -$23.6M -1,046,620 -45%
Daiwa Securities Group
45
Daiwa Securities Group
Japan
$22.6M +$26.4M +1,170,497 +2,490%
BAMCO Inc
46
BAMCO Inc
New York
$22.6M +$12.7M +563,748 +87%
Principal Financial Group
47
Principal Financial Group
Iowa
$22.2M -$11.5M -511,610 -30%
VOYA Investment Management
48
VOYA Investment Management
Georgia
$21.7M +$6.5M +288,378 +33%
CAM
49
Congress Asset Management
Massachusetts
$20.7M +$25.1M +1,114,061 New
SBH
50
Segall Bryant & Hamill
Illinois
$20.7M -$1.3M -57,815 -5%