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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
RHJA
76
Rice Hall James & Associates
California
$4.72M -$1.28M -82,212 -23%
EI
77
EAM Investors
California
$4.5M +$4M +257,777 New
SSA
78
Schonfeld Strategic Advisors
New York
$4.41M +$3.92M +252,686 New
Verition Fund Management
79
Verition Fund Management
Connecticut
$4.36M +$959K +61,838 +33%
SAM
80
Scopus Asset Management
New York
$4.29M +$3.82M +246,060 New
BA
81
Bridgewater Associates
Connecticut
$4.25M +$3.78M +243,755 New
Marshall Wace
82
Marshall Wace
United Kingdom
$4.18M +$2.76M +177,643 +287%
AACP
83
Advantage Alpha Capital Partners
California
$4.11M +$3.65M +235,565 New
EMFAT
84
Emerald Mutual Fund Advisers Trust
Pennsylvania
$3.96M +$3.52M +226,679 New
Legal & General Group
85
Legal & General Group
United Kingdom
$3.83M +$401K +25,887 +13%
AllianceBernstein
86
AllianceBernstein
Tennessee
$3.78M -$64.5K -4,158 -2%
HBWM
87
Hollow Brook Wealth Management
New York
$3.67M -$105K -6,797 -3%
Bank of America
88
Bank of America
North Carolina
$3.52M -$516K -33,302 -14%
SEI Investments
89
SEI Investments
Pennsylvania
$3.28M +$2.91M +187,918 New
Citigroup
90
Citigroup
New York
$3.27M +$198K +12,774 +7%
California State Teachers Retirement System (CalSTRS)
91
California State Teachers Retirement System (CalSTRS)
California
$3.15M -$30.9K -1,994 -1%
YCM
92
Yaupon Capital Management
New York
$3.12M -$550K -35,488 -17%
PAMP
93
Polar Asset Management Partners
Ontario, Canada
$3.05M +$2.71M +174,919 New
Tudor Investment Corp
94
Tudor Investment Corp
Connecticut
$2.89M +$1.56M +100,367 +153%
WAM
95
Wolverine Asset Management
Illinois
$2.83M +$2.51M +162,000 New
M&T Bank
96
M&T Bank
New York
$2.79M -$622K -40,112 -20%
HF
97
HRT Financial
New York
$2.71M +$2.41M +155,399 New
AIMCA
98
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$2.69M -$618K -39,839 -21%
LCM
99
Legato Capital Management
California
$2.54M -$566K -36,498 -20%
Renaissance Technologies
100
Renaissance Technologies
New York
$2.53M +$497K +32,014 +28%
2 3
4
5 6

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.