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Janus Henderson Group’s
Mirion Technologies
MIR
Stock Holding History
Janus Henderson Group’s Portfolio
MIR Stock Details
MIR Fund Activity
Bought
Maintained
Sold
Shares
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2026
Q1
$75.2M
Sell
4,043,089
-553,860
-12%
-$12.5M
0.04%
333
2025
Q4
$108M
Sell
4,596,949
-3,064,988
-40%
-$76.4M
0.05%
275
2025
Q3
$178M
Sell
7,661,937
-326,459
-4%
-$7.06M
0.08%
199
2025
Q2
$172M
Sell
7,988,396
-599,268
-7%
-$10.3M
0.08%
201
2025
Q1
$126M
Buy
8,587,664
+257,169
+3%
+$4.04M
0.07%
234
2024
Q4
$145M
Buy
8,330,495
+229,718
+3%
+$3.56M
0.07%
232
2024
Q3
$89.7M
Sell
8,100,777
-584,490
-7%
-$6.15M
0.05%
291
2024
Q2
$93.3M
Sell
8,685,267
-717,847
-8%
-$7.63M
0.05%
274
2024
Q1
$107M
Buy
9,403,114
+3,929
+0%
+$39.4K
0.06%
254
2023
Q4
$96.3M
Buy
9,399,185
+671,309
+8%
+$5.67M
0.06%
256
2023
Q3
$65.2M
Sell
8,727,876
-976,433
-10%
-$7.69M
0.04%
312
2023
Q2
$82M
Sell
9,704,309
-1,296,238
-12%
-$10.5M
0.05%
289
2023
Q1
$93.9M
Sell
11,000,547
-695,747
-6%
-$5.52M
0.06%
258
2022
Q4
$77.3M
Sell
11,696,294
-1,824,936
-13%
-$12.3M
0.06%
291
2022
Q3
$101M
Buy
13,521,230
+10,746,686
+387%
+$75.7M
0.04%
358
2022
Q2
$16M
Buy
2,774,544
+19,691
+0.7%
+$145K
0.01%
604
2022
Q1
$22.2M
Buy
2,754,853
+862,819
+46%
+$7.43M
0.01%
725
2021
Q4
$19.8M
Buy
1,892,034
+822,472
+77%
+$8.83M
0.01%
793
2021
Q3
$10.9M
Buy
+1,069,562
New
+$10.8M
﹤0.01%
901
Other funds holding MIR
BlackRock
New York
$5.7T AUM
30.48%
1-Year Est. Return
VPM
Vanguard Portfolio Management
Malvern, Pennsylvania
$1.91T AUM
T. Rowe Price Investment Management
Baltimore, Maryland
$145B AUM
22.78%
1-Year Est. Return
VCM
Vanguard Capital Management
Malvern, Pennsylvania
$4.04T AUM
State Street
Boston, Massachusetts
$2.9T AUM
29.55%
1-Year Est. Return
CLG
Cooperman Leon G
$3.05B AUM
42.78%
1-Year Est. Return
Goldman Sachs
New York
$761B AUM
31.28%
1-Year Est. Return
Fidelity Investments
Boston, Massachusetts
$1.9T AUM
41.92%
1-Year Est. Return
Geode Capital Management
Boston, Massachusetts
$1.61T AUM
30.72%
1-Year Est. Return
Millennium Management
New York
$134B AUM
35.51%
1-Year Est. Return
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Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
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