MIR Mirion Technologies, Inc.

TSXV
$15.76

Mirion Technologies, Inc. (MIR) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with MIR's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 1 buyer in the last 30 days 1 buyer in the last 90 days 0 sellers in the last 90 days
Insiders buying
1
1 transaction
Insiders selling
5
7 transactions
Purchases
$312.0K
20,000 shares
Sales
$20.3M
815,900 shares
Net activity
-$20.0M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $20.3M 7 transactions · 815,900 shares

Largest single sale: $8.7M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: September 2, 2026 , by Schopfer Brian .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Schopfer Brian Chief Financial Officer Buy 20,000 $15.60 $312.0K 933,290
Moore Christopher A. Chief Accounting Officer (PAO) Sell 8,400 $19.64 $165.0K 22,157 −27.5% of holding
Kingsley Lawrence D Director Sell 350,000 $24.73 $8.7M 3,509,075 −9.1% of holding
Kingsley Lawrence D Director Sell 300,000 $23.83 $7.1M 3,900,000 −7.1% of holding
Eloy Loic Nuclear & Safety President Sell 45,000 $27.24 $1.2M 97,770 −31.5% of holding
Lee Emmanuelle Chief Legal Officer Sell 12,500 $27.41 $342.6K 84,640 −12.9% of holding
Schopfer Brian 2 fills Chief Financial Officer Sell 100,000 $27.65 $2.8M 954,432 −9.5% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.