MIRION TECHNOLOGIES INC (MIR): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in MIR · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
23
13F filers
Aggregate Value
$337.9M
Across holders
Last Price
$14.68
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity15 increased8 reduced4 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| MAVERICK CAPITAL LTD CIK 0000934639 | Hedge Fund | 5.25M | $94.0M | 27.8% | 0.8% | Added | +$46.5M | Q2 2026 |
| TCW GROUP INC CIK 0000850401 | Hedge Fund | 2.26M | $40.4M | 12.0% | 0.3% | Added | $-39.8M | Q2 2026 |
| Davidson Kempner Capital Management LP CIK 0001595082 | Hedge Fund | 1.62M | $29.0M | 8.6% | 0.3% | Added | +$5.5M | Q2 2026 |
| Select Equity Group, L.P. CIK 0001592643 | Hedge Fund | 1.58M | $28.3M | 8.4% | 0.1% | Added | +$9.3M | Q2 2026 |
| Rockefeller Capital Management L.P. CIK 0001739439 | Hedge Fund | 1.47M | $26.3M | 7.8% | 0.0% | Added | +$22.7M | Q2 2026 |
| Clearbridge Investments, LLC CIK 0001348883 | Hedge Fund | 1.10M | $19.7M | 5.8% | 0.0% | Added | — | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 992K | $17.8M | 5.3% | 0.0% | Reduced | $-73.8M | Q2 2026 |
| Point72 Asset Management, L.P. CIK 0001603466 | Hedge Fund | 678K | $12.1M | 3.6% | 0.0% | Added | +$11.9M | Q2 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 605K | $10.9M | 3.2% | 0.1% | Added | — | Q2 2026 |
| ArrowMark Colorado Holdings LLC CIK 0001483859 | Hedge Fund | 588K | $10.5M | 3.1% | 0.4% | Added | +$235K | Q2 2026 |
Added
Hedge Fund
$94.0M· 27.8% of total· 0.8% port· 5.25M sh· +$46.5M QoQ· Q2 2026
Added
Hedge Fund
$40.4M· 12.0% of total· 0.3% port· 2.26M sh· $-39.8M QoQ· Q2 2026
Added
Hedge Fund
$29.0M· 8.6% of total· 0.3% port· 1.62M sh· +$5.5M QoQ· Q2 2026
Added
Hedge Fund
$28.3M· 8.4% of total· 0.1% port· 1.58M sh· +$9.3M QoQ· Q2 2026
Added
Hedge Fund
$26.3M· 7.8% of total· 0.0% port· 1.47M sh· +$22.7M QoQ· Q2 2026
Added
Hedge Fund
$19.7M· 5.8% of total· 0.0% port· 1.10M sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$17.8M· 5.3% of total· 0.0% port· 992K sh· $-73.8M QoQ· Q2 2026
Added
Hedge Fund
$12.1M· 3.6% of total· 0.0% port· 678K sh· +$11.9M QoQ· Q2 2026
Added
Hedge Fund
$10.9M· 3.2% of total· 0.1% port· 605K sh· — QoQ· Q2 2026
Added
Hedge Fund
$10.5M· 3.1% of total· 0.4% port· 588K sh· +$235K QoQ· Q2 2026
Reduced
Institutional Manager
$9.6M· 2.8% of total· 0.1% port· 535K sh· $-168K QoQ· Q2 2026
Reduced
Hedge Fund
$7.2M· 2.1% of total· 0.0% port· 400K sh· $-5.9M QoQ· Q2 2026
Added
Hedge Fund
$6.4M· 1.9% of total· 0.0% port· 359K sh· +$132K QoQ· Q2 2026
Added
Hedge Fund
$6.1M· 1.8% of total· 0.0% port· 338K sh· +$4.5M QoQ· Q2 2026
Reduced
Hedge Fund
$5.0M· 1.5% of total· 0.0% port· 281K sh· $-3.4M QoQ· Q2 2026
Reduced
Hedge Fund
$4.9M· 1.4% of total· 0.0% port· 271K sh· +$4.8M QoQ· Q2 2026
Reduced
Hedge Fund
$3.7M· 1.1% of total· 0.0% port· 208K sh· +$3.5M QoQ· Q2 2026
Reduced
Hedge Fund
$2.8M· 0.8% of total· 0.0% port· 156K sh· $-13.5M QoQ· Q2 2026
Added
Hedge Fund
$1.3M· 0.4% of total· 0.0% port· 72K sh· — QoQ· Q2 2026
Added
Hedge Fund
$682K· 0.2% of total· 0.0% port· 38K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$588K· 0.2% of total· 0.0% port· 33K sh· $-31.1M QoQ· Q2 2026
Added
Hedge Fund
$354K· 0.1% of total· 0.0% port· 20K sh· — QoQ· Q2 2026
Added
Hedge Fund
$217K· 0.1% of total· 0.0% port· 12K sh· — QoQ· Q2 2026
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