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Mirion Technologies
MIR

93 hedge funds and large institutions have $1.51B invested in Mirion Technologies in 2021 Q4 according to their latest regulatory filings, with 48 funds opening new positions, 20 increasing their positions, 19 reducing their positions, and 51 closing their positions.

New
Increased
Maintained
Reduced
Closed

790% more call options, than puts

Call options by funds: $25.2M | Put options by funds: $2.83M

187% more capital invested

Capital invested by funds: $525M → $1.51B (+$981M)

133% more funds holding in top 10

Funds holding in top 10: 3 → 7 (+4)

4.1% more ownership

Funds ownership: 68.52% → 72.62% (+4.1%)

5% more repeat investments, than reductions

Existing positions increased: 20 | Existing positions reduced: 19

6% less first-time investments, than exits

New positions opened: 48 | Existing positions closed: 51

4% less funds holding

Funds holding: 97 → 93 (-4)

Holders
93
Holders Change
-4
Holders Change %
-4.12%
% of All Funds
1.43%
Holding in Top 10
7
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+133.33%
% of All Funds
0.11%
New
48
Increased
20
Reduced
19
Closed
51
Calls
$25.2M
Puts
$2.83M
Net Calls
+$22.4M
Net Calls Change
+$28.2M

Top Buyers

Rank Fund Capital Flow
1
Goldman Sachs
Goldman Sachs
New York
+$572M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
+$101M
3
Fidelity Investments
Fidelity Investments
Massachusetts
+$80.5M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$75.5M
5
SIG
Senator Investment Group
New York
+$73.8M

Top Sellers

Rank Fund Capital Flow
1
RCM
Ratan Capital Management
Florida
-$32M
2
Citadel Advisors
Citadel Advisors
Florida
-$29.1M
3
ECP
Empyrean Capital Partners
California
-$25.8M
4
AGM
Alpine Global Management
New York
-$20.4M
5
Public Sector Pension Investment Board (PSP Investments)
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
-$16.1M
Name Holding Trade Value Shares
Change 		Change in
Stake
TRCT
76
Tower Research Capital (TRC)
New York
$179K +$184K +17,120 New
EAM
77
Exos Asset Management
New York
$163K +$45.7K +4,258 +38%
PCM
78
Penserra Capital Management
California
$134K -$84.8K -7,903 -38%
TCM
79
Tuttle Capital Management
Connecticut
$129K +$132K +12,277 New
PIM
80
Perpetual Investment Management
Australia
$127K +$131K +12,175 New
TC
81
TwinBeech Capital
New York
$117K +$120K +11,217 New
Wells Fargo
82
Wells Fargo
California
$62K -$12.5K -1,164 -16%
AIM
83
Anchor Investment Management
South Carolina
$20.9K – – –
APA
84
American Portfolios Advisors
New York
$12.2K – – –
JP Morgan Chase
85
JP Morgan Chase
New York
$12K -$1.06M -98,867 -99%
Manulife (Manufacturers Life Insurance)
86
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$11.7K +$12M +1,116,000 New
Osaic Holdings
87
Osaic Holdings
Arizona
$9K +$5.15K +480 +117%
BBPWM
88
Blue Bell Private Wealth Management
Pennsylvania
$7K +$7.51K +700 New
AFG
89
Albion Financial Group
Utah
$3K – – –
FF
90
FourThought Financial
Florida
$3K – – –
HR
91
Howe & Rusling
New York
$3K – – –
FIA
92
FNY Investment Advisers
New York
$2K -$371K -34,523 -99%
BAM
93
Byrne Asset Management
New Jersey
$2K +$2.42K +225 New
ECP
94
Empyrean Capital Partners
California
– -$25.8M -2,520,399 Closed
AGM
95
Alpine Global Management
New York
– -$20.4M -2,000,000 Closed
Public Sector Pension Investment Board (PSP Investments)
96
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
– -$16.1M -1,500,000 Closed
AIMCA
97
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
– -$14.4M -1,410,199 Closed
D.E. Shaw & Co
98
D.E. Shaw & Co
New York
– -$13.4M -1,306,800 Closed
DKCM
99
Davidson Kempner Capital Management
New York
– -$12.1M -1,184,475 Closed
WCMNY
100
Westchester Capital Management (New York)
New York
– -$10.4M -1,021,683 Closed
2 3
4
5 6

MIR Hedge Fund Activity: Q4 2021 in Review

93 of the 6,498 institutional investors tracked by Wall St. Rank reported a position in Mirion Technologies (MIR) for Q4 2021, worth a combined $1.51B — up 187% from $525M a quarter earlier.

Sellers outnumbered buyers: 51 funds closed out of MIR and 48 opened new positions — a net loss of 3 holders — while 19 trimmed existing stakes and 20 added.

The largest buyer was Goldman Sachs, opening a new position worth an estimated $572M. The largest seller was Ratan Capital Management, cutting an estimated $32M.

  • 93 institutional investors held Mirion Technologies (MIR) as of Q4 2021, down from 97 in Q3 2021.
  • Funds reported $1.51B of Mirion Technologies stock for Q4 2021, up 187% quarter-over-quarter.
  • 48 funds opened new Mirion Technologies positions in Q4 2021 and 51 closed out, a net change of -3 holders.
  • The largest Mirion Technologies buyer in Q4 2021 was Goldman Sachs, an estimated $572M added.
  • The largest Mirion Technologies seller in Q4 2021 was Ratan Capital Management, an estimated $32M sold.

Based on aggregated 13F filings for Q4 2021.