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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
AAM
26
ACK Asset Management
Connecticut
$31.7M -$37.7M -2,431,300 -57%
Charles Schwab
27
Charles Schwab
California
$27.9M +$615K +39,635 +3%
UBS Group
28
UBS Group
Switzerland
$27M +$14M +902,024 +140%
N
29
Nuveen
North Carolina
$23.9M +$8.96M +577,620 +73%
SIC
30
Schwartz Investment Counsel
Michigan
$23.5M -$2.64M -170,000 -11%
C
31
Chescapmanager
Maryland
$23.2M +$4.44M +286,494 +28%
MP
32
Munro Partners
Australia
$19.6M +$17.4M +1,122,215 New
Morgan Stanley
33
Morgan Stanley
New York
$18.3M +$2.79M +179,618 +21%
MCM
34
Masters Capital Management
Georgia
$17.4M +$15.5M +1,000,000 New
Raymond James Financial
35
Raymond James Financial
Florida
$17.2M +$15.3M +983,610 New
SAM
36
Silvercrest Asset Management
New York
$16.9M +$15M +968,561 New
GF
37
Greenhouse Funds
Maryland
$12.2M +$10.9M +700,623 New
Schroder Investment Management Group
38
Schroder Investment Management Group
United Kingdom
$11.8M +$10.5M +675,084 New
Bank of New York Mellon
39
Bank of New York Mellon
New York
$11.5M +$205K +13,248 +2%
CI Investments Inc
40
CI Investments Inc
Ontario, Canada
$11.5M +$10.2M +659,720 New
PC
41
Pier Capital
Connecticut
$11.5M +$10.2M +657,957 New
EA
42
Emerald Advisers
Pennsylvania
$10.6M +$9.43M +607,991 New
GI
43
GAMCO Investors
Connecticut
$10.5M -$545K -35,136 -6%
JP Morgan Chase
44
JP Morgan Chase
New York
$10.4M +$5.86M +377,915 +172%
SCM
45
Sandler Capital Management
New York
$9.99M +$3.53M +227,451 +66%
GF
46
Gabelli Funds
New York
$9.71M -$931K -60,000 -10%
Jennison Associates
47
Jennison Associates
New York
$8.97M +$756K +48,761 +10%
Allspring Global Investments
48
Allspring Global Investments
North Carolina
$8.81M +$7.58M +488,790 +1,532%
TAM
49
Telemark Asset Management
Massachusetts
$8.72M +$1.55M +100,000 +25%
ACM
50
Arosa Capital Management
Florida
$8.6M +$7.65M +493,000 New
1
2
3 4 5

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.