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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
BlackRock
1
BlackRock
New York
$704M -$7.72M -342,271 -0.9%
VPM
2
Vanguard Portfolio Management
Pennsylvania
$333M +$404M +17,905,722 New
T. Rowe Price Investment Management
3
T. Rowe Price Investment Management
Maryland
$272M -$10.9M -485,060 -3%
VCM
4
Vanguard Capital Management
Pennsylvania
$195M +$237M +10,505,195 New
State Street
5
State Street
Massachusetts
$175M +$5.22M +231,222 +3%
CLG
6
Cooperman Leon G
$156M
Goldman Sachs
7
Goldman Sachs
New York
$137M +$47.4M +2,101,162 +40%
Fidelity Investments
8
Fidelity Investments
Massachusetts
$122M -$42M -1,862,608 -22%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$110M +$3.46M +153,579 +3%
Millennium Management
10
Millennium Management
New York
$94.9M +$115M +5,106,801 New
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$87.2M +$13.3M +591,730 +14%
Bank of New York Mellon
12
Bank of New York Mellon
New York
$84.3M +$32.9M +1,459,787 +47%
Janus Henderson Group
13
Janus Henderson Group
United Kingdom
$75.2M -$12.5M -553,860 -12%
UBS Group
14
UBS Group
Switzerland
$70M -$24.5M -1,085,745 -22%
Swedbank
15
Swedbank
Sweden
$58.7M -$5.37M -238,250 -7%
American Century Companies
16
American Century Companies
Missouri
$50.8M +$3.97M +176,038 +7%
Alyeska Investment Group
17
Alyeska Investment Group
Illinois
$50.2M +$26.4M +1,170,363 +76%
Loomis, Sayles & Company
18
Loomis, Sayles & Company
Massachusetts
$49.6M -$3.96M -175,391 -6%
MC
19
Maverick Capital
Texas
$49.3M +$59.8M +2,649,879 New
TCCM
20
Two Creeks Capital Management
New York
$45.5M -$10.7M -474,743 -16%
JP Morgan Chase
21
JP Morgan Chase
New York
$45.4M +$21.4M +949,056 +57%
Northern Trust
22
Northern Trust
Illinois
$44M +$785K +34,791 +1%
Invesco
23
Invesco
Georgia
$42.7M -$18.2M -806,870 -26%
Morgan Stanley
24
Morgan Stanley
New York
$42.5M +$4.25M +188,210 +9%
Charles Schwab
25
Charles Schwab
California
$42.3M -$1.51M -66,996 -3%