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Mirion Technologies
MIR

224 hedge funds and large institutions have $3.38B invested in Mirion Technologies in 2024 Q4 according to their latest regulatory filings, with 75 funds opening new positions, 82 increasing their positions, 55 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,716% more call options, than puts

Call options by funds: $38.1M | Put options by funds: $2.1M

226% more first-time investments, than exits

New positions opened: 75 | Existing positions closed: 23

100% more funds holding in top 10

Funds holding in top 10: 3 → 6 (+3)

49% more repeat investments, than reductions

Existing positions increased: 82 | Existing positions reduced: 55

49% more capital invested

Capital invested by funds: $2.27B → $3.38B (+$1.11B)

27% more funds holding

Funds holding: 176 → 224 (+48)

5% less ownership

Funds ownership: 91% → 86% (-5%)

Holders
224
Holders Change
+48
Holders Change %
+27.27%
% of All Funds
2.95%
Holding in Top 10
6
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+100%
% of All Funds
0.08%
New
75
Increased
82
Reduced
55
Closed
23
Calls
$38.1M
Puts
$2.1M
Net Calls
+$36M
Net Calls Change
+$36.5M

Top Buyers

1
MC
Maverick Capital
Texas
+$93M
2
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$65.2M
3
Brown Advisory
Brown Advisory
Maryland
+$59.1M
4
William Blair Investment Management
William Blair Investment Management
Illinois
+$47.2M
5
AIM
Artemis Investment Management
United Kingdom
+$33.9M

Top Sellers

1
Goldman Sachs
Goldman Sachs
New York
-$402M
2
Swedbank
Swedbank
Sweden
-$64.5M
3
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$62.9M
4
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$54M
5
AAM
ACK Asset Management
Connecticut
-$37.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
Adage Capital Partners
101
Adage Capital Partners
Massachusetts
$2.46M -$54M -3,479,716 -96%
T. Rowe Price Associates
102
T. Rowe Price Associates
Maryland
$2.45M +$262K +16,910 +14%
RC
103
Roubaix Capital
Colorado
$2.38M -$3.85M -248,490 -65%
State of New Jersey Common Pension Fund D
104
State of New Jersey Common Pension Fund D
New Jersey
$2.25M -$789K -50,898 -28%
New York State Common Retirement Fund
105
New York State Common Retirement Fund
New York
$2.19M -$108K -6,993 -5%
AAP
106
Ardsley Advisory Partners
Connecticut
$2.18M – – –
MIM
107
MetLife Investment Management
New Jersey
$2.17M +$107K +6,878 +6%
First Manhattan
108
First Manhattan
New York
$2.1M -$24.6M -1,586,360 -93%
Mirae Asset Global ETFs Holdings
109
Mirae Asset Global ETFs Holdings
Hong Kong
$2.05M +$127K +8,201 +7%
Citadel Advisors
110
Citadel Advisors
Florida
$1.94M +$1.36M +87,975 +378%
First Trust Advisors
111
First Trust Advisors
Illinois
$1.91M -$2.41M -155,689 -59%
GCM
112
Graham Capital Management
Connecticut
$1.88M +$1.67M +107,748 New
Manulife (Manufacturers Life Insurance)
113
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$1.87M -$25.2K -1,625 -1%
SOW
114
State of Wyoming
Wyoming
$1.83M +$343K +22,126 +27%
Walleye Capital
115
Walleye Capital
New York
$1.8M +$1.6M +103,151 New
CF
116
Corebridge Financial
Texas
$1.79M -$64.5K -4,158 -4%
CM
117
CastleKnight Management
New York
$1.74M +$1.55M +99,900 New
Nomura Holdings
118
Nomura Holdings
Japan
$1.71M +$1.52M +97,824 New
BPC
119
Bryce Point Capital
New York
$1.68M +$1.49M +95,998 New
Ameriprise
120
Ameriprise
Minnesota
$1.63M +$1.45M +93,322 New
IIM
121
INTECH Investment Management
Florida
$1.62M +$622K +40,093 +76%
Susquehanna International Group
122
Susquehanna International Group
Pennsylvania
$1.57M +$984K +63,436 +240%
ETC
123
Exchange Traded Concepts
Oklahoma
$1.55M +$1.03M +66,132 +291%
AQR Capital Management
124
AQR Capital Management
Connecticut
$1.55M +$1.38M +88,812 New
SCM
125
Sterling Capital Management
North Carolina
$1.48M +$1.31M +84,245 +13,458%
3 4
5
6 7

MIR Hedge Fund Activity: Q4 2024 in Review

224 of the 7,592 institutional investors tracked by Wall St. Rank reported a position in Mirion Technologies (MIR) for Q4 2024, worth a combined $3.38B — up 49% from $2.27B a quarter earlier.

Buyers outnumbered sellers: 75 funds opened new MIR positions and 23 closed out — a net gain of 52 holders — while 82 added to existing stakes and 55 trimmed.

The largest buyer was Maverick Capital, adding an estimated $93M. The largest seller was Goldman Sachs, cutting an estimated $402M.

  • 224 institutional investors held Mirion Technologies (MIR) as of Q4 2024, up from 176 in Q3 2024.
  • Funds reported $3.38B of Mirion Technologies stock for Q4 2024, up 49% quarter-over-quarter.
  • 75 funds opened new Mirion Technologies positions in Q4 2024 and 23 closed out, a net change of +52 holders.
  • The largest Mirion Technologies buyer in Q4 2024 was Maverick Capital, an estimated $93M added.
  • The largest Mirion Technologies seller in Q4 2024 was Goldman Sachs, an estimated $402M sold.

Based on aggregated 13F filings for Q4 2024.