Mirion (MIR) CFO has shares withheld for RSU tax obligations, retains large stake
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Mirion Technologies, Inc. Chief Financial Officer Brian Schopfer reported a routine tax-related share withholding. On April 1, 2026, 7,377 shares of Class A Common Stock were withheld at $18.59 per share to satisfy tax obligations tied to vesting restricted stock units.
The company’s policy mandated this withholding, and it was not a discretionary trade by Schopfer. After this transaction, he directly holds 913,290 Class A shares and 399,935 Class B shares, indicating the disposition was small relative to his overall stake.
Positive
- None.
Negative
- None.
Insider Trade Summary
2 transactions reported
Mixed
2 txns
Insider
Schopfer Brian
Role
Chief Financial Officer
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Tax Withholding | Class A Common Stock | 7,377 | $18.59 | $137K |
| holding | Class B Common Stock | -- | -- | -- |
Holdings After Transaction:
Class A Common Stock — 913,290 shares (Direct);
Class B Common Stock — 399,935 shares (Direct)
Footnotes (1)
- [object Object]
Key Figures
Tax-withheld shares: 7,377 shares
Withholding price: $18.59 per share
Class A holdings after: 913,290 shares
+2 more
5 metrics
Tax-withheld shares
7,377 shares
Class A Common Stock withheld for tax on RSU vesting
Withholding price
$18.59 per share
Value used for tax-withholding disposition
Class A holdings after
913,290 shares
Direct Class A Common Stock held after transaction
Class B holdings after
399,935 shares
Direct Class B Common Stock held after transaction
Tax-withholding transactions
1 transaction
Non-discretionary tax-withholding disposition reported
Key Terms
restricted stock units, tax withholding obligations, Class A Common Stock, Class B Common Stock, +1 more
5 terms
restricted stock units financial
"in connection with the vesting of restricted stock units (RSUs) previously granted"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
tax withholding obligations financial
"withheld by the Issuer in satisfaction of tax withholding obligations in connection"
Class A Common Stock financial
"security_title": "Class A Common Stock""
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
Class B Common Stock financial
"security_title": "Class B Common Stock""
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
Form 4 regulatory
"INSIDER FILING DATA (Form 4):"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
FAQ
What insider transaction did Mirion (MIR) CFO Brian Schopfer report?
Mirion CFO Brian Schopfer reported a tax-withholding disposition of 7,377 Class A shares. These shares were withheld by the company to cover tax obligations from vesting restricted stock units, rather than sold in an open-market trade.
Was the Mirion (MIR) CFO’s Form 4 transaction a discretionary sale?
No, the transaction was not discretionary. Shares were withheld under a pre-adopted company policy to satisfy tax withholding obligations on vested restricted stock units, meaning Schopfer did not choose the timing or execute an open-market sale.
What are Brian Schopfer’s Mirion (MIR) holdings after this Form 4 transaction?
After the reported transaction, Brian Schopfer holds 913,290 shares of Mirion Class A Common Stock and 399,935 shares of Class B Common Stock. These figures reflect his direct ownership position following the tax-related share withholding.
Does the Mirion (MIR) Form 4 show any open-market buying or selling by the CFO?
The Form 4 does not show open-market buying or selling. It reports only a tax-withholding disposition, where 7,377 shares were withheld by Mirion under policy to cover tax on vested restricted stock units.