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Mirion Technologies
MIR

116 hedge funds and large institutions have $1.45B invested in Mirion Technologies in 2023 Q1 according to their latest regulatory filings, with 17 funds opening new positions, 45 increasing their positions, 38 reducing their positions, and 20 closing their positions.

New
Increased
Maintained
Reduced
Closed

20,473% more call options, than puts

Call options by funds: $15.8M | Put options by funds: $77K

43% more capital invested

Capital invested by funds: $1.01B → $1.45B (+$439M)

18% more repeat investments, than reductions

Existing positions increased: 45 | Existing positions reduced: 38

1.59% more ownership

Funds ownership: 76.59% → 78.18% (+1.6%)

3% less funds holding

Funds holding: 119 → 116 (-3)

15% less first-time investments, than exits

New positions opened: 17 | Existing positions closed: 20

40% less funds holding in top 10

Funds holding in top 10: 5 → 3 (-2)

Holders
116
Holders Change
-3
Holders Change %
-2.52%
% of All Funds
1.85%
Holding in Top 10
3
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-40%
% of All Funds
0.05%
New
17
Increased
45
Reduced
38
Closed
20
Calls
$15.8M
Puts
$77K
Net Calls
+$15.8M
Net Calls Change
+$9.12M

Top Buyers

Rank Fund Capital Flow
1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
+$140M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$45.9M
3
PA
Pantechnicon Advisors
United Kingdom
+$8.17M
4
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
+$6.4M
5
SSA
Schonfeld Strategic Advisors
New York
+$4.62M

Top Sellers

Rank Fund Capital Flow
1
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$21.6M
2
PCP
P2 Capital Partners
New York
-$21M
3
SIG
Senator Investment Group
New York
-$10.9M
4
Principal Financial Group
Principal Financial Group
Iowa
-$6.3M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$5.52M
Name Holding Trade Value Shares
Change 		Change in
Stake
PA
26
Pantechnicon Advisors
United Kingdom
$8.8M +$8.17M +1,030,000 New
Charles Schwab
27
Charles Schwab
California
$8.03M -$16K -2,022 -0.2%
PCM
28
Pentwater Capital Management
Florida
$6.83M +$2.82M +355,000 +80%
GF
29
Gabelli Funds
New York
$6.12M +$95.2K +12,000 +2%
SSA
30
Schonfeld Strategic Advisors
New York
$5.65M +$4.62M +582,707 +740%
CC
31
Carlson Capital
Texas
$4.73M -$1.43M -180,000 -25%
Arrowstreet Capital
32
Arrowstreet Capital
Massachusetts
$4.55M +$4.22M +532,265 New
CWM
33
CIBC World Markets
New York
$4.27M +$3.97M +500,000 New
IG
34
ING Group
Netherlands
$4.27M +$3.97M +500,000 New
Bank of New York Mellon
35
Bank of New York Mellon
New York
$3.92M -$638K -80,416 -15%
RC
36
Roubaix Capital
Colorado
$3.83M +$3.56M +448,151 New
Hudson Bay Capital Management
37
Hudson Bay Capital Management
Connecticut
$3.14M +$120K +15,187 +4%
TD Asset Management
38
TD Asset Management
Ontario, Canada
$2.83M +$2.63M +330,958 New
Swiss National Bank
39
Swiss National Bank
Switzerland
$2.4M -$264K -33,300 -11%
SC
40
Sculptor Capital
New York
$2.39M -$1.32M -166,696 -37%
Russell Investments Group
41
Russell Investments Group
United Kingdom
$2.26M +$4.1K +517 +0.2%
SAM
42
Scopus Asset Management
New York
$2.13M +$397K +50,000 +25%
Bank of America
43
Bank of America
North Carolina
$2.09M +$531K +66,911 +38%
Susquehanna International Group
44
Susquehanna International Group
Pennsylvania
$2M +$1.74M +219,695 +1,573%
RA
45
Royce & Associates
New York
$1.92M +$793K +100,000 +80%
ICM
46
Ionic Capital Management
New York
$1.9M -$3.37M -425,321 -66%
RhumbLine Advisers
47
RhumbLine Advisers
Massachusetts
$1.89M +$95.6K +12,044 +6%
GI
48
GAMCO Investors
Connecticut
$1.88M +$127K +16,000 +8%
Invesco
49
Invesco
Georgia
$1.57M +$564K +71,087 +63%
M&T Bank
50
M&T Bank
New York
$1.54M +$249K +31,408 +21%
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MIR Hedge Fund Activity: Q1 2023 in Review

116 of the 6,275 institutional investors tracked by Wall St. Rank reported a position in Mirion Technologies (MIR) for Q1 2023, worth a combined $1.45B — up 43% from $1.01B a quarter earlier.

Sellers outnumbered buyers: 20 funds closed out of MIR and 17 opened new positions — a net loss of 3 holders — while 38 trimmed existing stakes and 45 added.

The largest buyer was T. Rowe Price Investment Management, opening a new position worth an estimated $140M. The largest seller was Alyeska Investment Group, cutting an estimated $21.6M.

  • 116 institutional investors held Mirion Technologies (MIR) as of Q1 2023, down from 119 in Q4 2022.
  • Funds reported $1.45B of Mirion Technologies stock for Q1 2023, up 43% quarter-over-quarter.
  • 17 funds opened new Mirion Technologies positions in Q1 2023 and 20 closed out, a net change of -3 holders.
  • The largest Mirion Technologies buyer in Q1 2023 was T. Rowe Price Investment Management, an estimated $140M added.
  • The largest Mirion Technologies seller in Q1 2023 was Alyeska Investment Group, an estimated $21.6M sold.

Based on aggregated 13F filings for Q1 2023.