MIRNYSE

Mirion Technologies, Inc.

Alert me on MIR

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Sep 3 Buy Schopfer Brian Insider

1 week

−4.7%S&P −1.1%

1 month

−11.0%S&P +0.5%

3 months

Result in17 trading days

6 months

Result in80 trading days

May 9 Sale Moore Christopher A. Insider

1 week

−2.4%S&P −0.1%

1 month

−14.3%S&P −1.9%

3 months

−17.3%S&P +4.5%

6 months

+5.5%S&P +2.3%

Dec 13, 2025 Sale Kingsley Lawrence D Insider

1 week

−2.1%S&P +0.9%

1 month

+11.0%S&P +2.0%

3 months

−20.1%S&P −2.6%

6 months

−27.4%S&P +9.5%

Nov 22, 2025 Sale Kingsley Lawrence D Insider

1 week

−0.4%S&P +1.9%

1 month

−3.9%S&P +3.5%

3 months

−12.1%S&P +3.4%

6 months

−31.4%S&P +13.5%

Nov 13, 2025 Sale Lee Emmanuelle Insider

1 week

−6.0%S&P −2.9%

1 month

+1.2%S&P +1.3%

3 months

−8.5%S&P +1.9%

6 months

−24.9%S&P +10.5%

Show all 7

Nov 13, 2025 Sale Eloy Loic Insider

1 week

−6.0%S&P −2.9%

1 month

+1.2%S&P +1.3%

3 months

−8.5%S&P +1.9%

6 months

−24.9%S&P +10.5%

Nov 11, 2025 Sale Schopfer Brian Insider

1 week

−11.1%S&P −3.4%

1 month

−2.0%S&P +0.9%

3 months

−19.9%S&P 0.0%

6 months

−29.5%S&P +10.2%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for MIR

54 held · newest 554 held · newest 2

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See all 54 filings for MIR

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 5%, 12,327,150 shares

Mar 31, 2026 Schedule 13G

Vanguard Portfolio Management: 7.4%, 18,118,998 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Dec 31, 2025 Schedule 13G, amended

T. Rowe Price Investment Management, Inc.: 6.1%, 15,112,855 shares

Jul 29, 2022 Schedule 13G, amended

Kuwait Investment Authority, acting for and on behalf of the Government of the State of Kuwait (KIA): 4.1%, 10,171,591 shares

Sep 30, 2025 Schedule 13G, amended

The Vanguard Group: 12.4%, 30,418,327 shares

Sep 30, 2025 Schedule 13G, amended

BlackRock, Inc.: 14.8%, 35,690,382 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

NoneQ4 2025

$20KQ1 2026

$30KQ2 2026

$30KQ3 2026

Unchanged from Q2 2026. Reported to the Senate each quarter by the firms it hires.Original report ↗

Read from LDA.gov between Sep 23, 2026 and Oct 20, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.