[Form 4] NPK International Inc. Insider Trading Activity
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
NPK International Inc. vice president and general counsel Mary Celeste Fruge reported routine equity compensation activity involving restricted stock units. On June 1, 2026, she exercised RSUs that converted on a one-for-one basis into 17,274 shares of common stock at a stated price of $0.00 per share.
To cover tax obligations upon vesting, 15,848 shares of common stock were withheld by the company in several transactions at $14.31 per share, which the filing describes as payment of tax liabilities by delivering securities. After these transactions, Fruge directly held 267,367 shares of NPK International common stock, representing a net increase of 1,426 shares from this RSU vesting event. No open-market purchases or sales were reported, and there are no remaining RSUs from this grant after conversion.
Positive
- None.
Negative
- None.
Insider Trade Summary
17,274 shares exercised/converted
Mixed
5 txns
Insider
Fruge Mary Celeste
Role
VP, General Counsel
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Restricted Stock Units | 17,274 | $0.00 | -- |
| Tax Withholding | Common Stock | 3,833 | $14.31 | $55K |
| Tax Withholding | Common Stock | 5,218 | $14.31 | $75K |
| Tax Withholding | Common Stock | 6,797 | $14.31 | $97K |
| Exercise | Common Stock | 17,274 | $0.00 | -- |
Holdings After Transaction:
Restricted Stock Units — 0 shares (Direct, null);
Common Stock — 279,382 shares (Direct, null)
Footnotes (1)
- Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units. The restricted stock units vest and convert into shares on a one-for-one basis. Grant of restricted stock units that vest in one-third increments on June 1 of each subsequent year after grant and settle in shares.
Key Figures
RSU shares exercised: 17,274 shares
Tax withholding shares: 15,848 shares
Tax withholding price: $14.31 per share
+4 more
7 metrics
RSU shares exercised
17,274 shares
Restricted stock units converted into common stock on June 1, 2026
Tax withholding shares
15,848 shares
Shares withheld to satisfy tax obligations on RSU vesting
Tax withholding price
$14.31 per share
Price used for share withholding to cover tax liabilities
Net shares added
1,426 shares
RSU shares exercised minus tax withholding shares
Shares owned after transactions
267,367 shares
Direct NPK International common stock held by Fruge after Form 4 events
Derivative exercises
1 transaction, 17,274 shares
Exercise or conversion of derivative security (RSUs) into common stock
Tax-withholding transactions
3 transactions, 15,848 shares
F-coded dispositions to pay tax liabilities via share delivery
Key Terms
Restricted Stock Units, tax withholding obligations, derivative security, tax-withholding disposition, +1 more
5 terms
Restricted Stock Units financial
"security_title: "Restricted Stock Units" and footnote on vesting and conversion"
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
"Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units."
derivative security financial
"transaction_code_description: "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
tax-withholding disposition financial
"transaction_action: "tax-withholding disposition" for F-coded transactions"
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
one-for-one basis financial
"The restricted stock units vest and convert into shares on a one-for-one basis."
FAQ
What insider transaction did NPKI executive Mary Celeste Fruge report?
Mary Celeste Fruge reported an RSU vesting that converted into 17,274 NPK International common shares. The Form 4 shows this as an exercise of restricted stock units that settled in stock, with no open-market buy or sell activity disclosed.
Did the NPKI Form 4 show any open-market stock sales or purchases?
The Form 4 does not show any open-market purchases or sales by Mary Celeste Fruge. Dispositions are coded as tax-withholding transactions, where shares were delivered to satisfy tax obligations from RSU vesting, rather than discretionary trades in the market.
What happens to the restricted stock units reported in NPKI’s Form 4?
The restricted stock units vested and converted into NPK International common stock on a one-for-one basis. According to the filing, this grant vests in one-third increments on June 1 of subsequent years and settles in shares when it vests and is converted.