Mirion Technologies Inc Cl A

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MIR·60471A101·US·Common Stock·Industrials - Specialty Industrial Machinery-13D/G

MIR institutional ownership changes in Q2 2026: 90 institutions opened or added positions, 98 trimmed or exited. MIR (Mirion Technologies Inc Cl A) is held by 178 institutional investors as of Q2 2026. Top institutional shareholders: BlackRock, Inc. ($686M), VANGUARD PORTFOLIO MANAGEMENT LLC ($326M), VANGUARD CAPITAL MANAGEMENT LLC ($190.3M). Net institutional sentiment: Mixed.

178

Holders

(14 Elite)

$4B

Total Value

48% (188)

Consensus

90 buying - 98 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)82

Insider (Form 4)40

Activist (13D/13G)57

Congressional (STOCK Act)63

Holder Quality

35

★★★★★

Elite

75

★★★★

Strong

43

★★★

Solid

81

★★

Below

44

★

Weak

Held by 178 funds

14 elite

Who's Trading

Source dates: Price Oct 22, 2026 · Insiders Sep 30, 2026 · Activists Apr 30, 2026 · Congress none

InsiderMJMarkopoulos JodyVest 1K shSep 30, 2026

InsiderKDKingsley Lawrence DVest 1K shSep 30, 2026

InsiderSBSchopfer BrianBuy $312KSep 2, 2026

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Top Holders

Top Holders (178)History

AllNewIncreasedHeldDecreasedExitedFirst report

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	38.3M(+1.1%)	$686M	0.0%	-16.30%	32
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	18.2M(+1.5%)	$326M	0.0%	-18.46%	31
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	10.6M(+1.0%)	$190.3M	0.0%	-18.47%	31
GOLDMAN SACHS GROUP INC	Increased	10.4M(+41.6%)	$186.6M	0.0%	-23.46%	41
STATE STREET CORP	Increased	9.9M(+5.2%)	$177.9M	0.0%	+3.42%	32
AIAlyeska Investment Group, L.P.	Increased	9.5M(+252.9%)	$171M	0.4%	-10.45%	59
CLCOOPERMAN LEON G	Unchanged	8.4M	$150.3M	4.2%	+39.37%	0
FMR LLC	Increased	7.3M(+11.9%)	$131.4M	0.0%	-32.32%	34
CONGRESS ASSET MANAGEMENT CO	Increased	6.7M(+500.1%)	$119.9M	0.7%	-0.61%	68
GEODE CAPITAL MANAGEMENT, LLC	Increased	6.3M(+5.7%)	$112.6M	0.0%	+28.52%	32
MAVERICK CAPITAL LTD	Increased	5.2M(+97.9%)	$94M	0.8%	-17.05%	68
DIMENSIONAL FUND ADVISORS LP	Increased	4.9M(+3.5%)	$87.1M	0.0%	+33.21%	31
JTJupiter Topco LLC	First report	4.1M	$73.8M	0.0%	-15.50%	0
BAMCO INC /NY/	Increased	3.9M(+221.8%)	$70M	0.1%	-19.92%	57
MORGAN STANLEY	Increased	3.9M(+70.5%)	$69.9M	0.0%	-14.45%	44
Neuberger Berman Group LLC	Increased	3.2M(+273.6%)	$57.4M	0.0%	-20.11%	47
AMERICAN CENTURY COMPANIES INC	Increased	3.2M(+16.2%)	$57M	0.0%	+21.58%	34
Invesco Ltd.	Increased	2.8M(+20.7%)	$49.7M	0.0%	-25.68%	35
UBS Group AG	Decreased	2.7M(-28.7%)	$48.2M	0.0%	-26.12%	0
NORTHERN TRUST CORP	Increased	2.6M(+9.3%)	$46.4M	0.0%	+25.56%	32

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer