Mirion Technologies, Inc. (MIR)
NYSE: MIR · Measuring & Controlling Devices, NEC · Atlanta, GA · filing with the SEC since 2020
Grade5.3
◀ Past 6.0● Present 4.8▶ Future 5.2
Who owns Mirion Technologies, Inc.
As filed with the SECHolders of 5% or more
4
Blackrock, Inc. holds 14.8% of Class A Stock, as its SCHEDULE 13G/A filed Oct 2, 2025 says.
Directors and officers
13
report now, of 26 people on the record since 2020. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Oct 2, 2025 · Class A Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
T. Rowe Price Investment Management, Inc.
SCHEDULE 13G/A · filed Feb 17, 2026 · COMMON STOCK
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
Kuwait Investment Authority, acting for and on behalf of the Government of the State of Kuwait (KIA)
SCHEDULE 13G/A · filed Jan 21, 2026 · Class A Common Stock, $0.0001 par value per share · reported falling below 5%
GSAM Holdings LLC
SCHEDULE 13D/A · filed Dec 18, 2024 · Class A Common Stock, par value $0.0001 per share · reported falling below 5%
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 12.4% in Oct 31, 2025
What MIR reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Paragon Corporation
A company bought · acquisition · Nov 2025 · owns, named in the 10-K filed Feb 19, 2026
Certrec Corporation
A company bought · acquisition · Jul 2025 · owns, named in the 10-K filed Feb 19, 2026
47 subsidiaries in 11 countries, from the list filed with the 10-K filed Feb 19, 2026.
Insider tradesForm 4
7sales
1purchases
0sales on a scheduled plan
5people selling
$20.3Msold, in dollars
$300,000bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 33 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Kingsley Lawrence D | director | 2 | $15.8M | 0 | 0 | $0 |
| Schopfer Brian | Chief Financial Officer | 2 | $2.8M | 0 | 1 | $300,000 |
| Eloy Loic | Nuclear & Safety President | 1 | $1.2M | 0 | 0 | $0 |
| Lee Emmanuelle | Chief Legal Officer | 1 | $300,000 | 0 | 0 | $0 |
| Moore Christopher A. | Chief Accounting Officer (PAO) | 1 | $200,000 | 0 | 0 | $0 |