Mercury Systems (MRCY) executive sells 1,308 shares for taxes
Rhea-AI Filing Summary
MERCURY SYSTEMS INC (MRCY) reported that officer Stuart Kupinsky, EVP, CLO & Corp Sec, had 1,308 shares of common stock sold on 2026-08-19 under a sell-to-cover program to satisfy tax withholding obligations upon vesting of stock awards. The program price for participants that day was $100.306 per share. After this tax-related sale, Kupinsky held 57,352 shares directly and 1,233 shares indirectly through a 401K Plan.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Seller: 1,308 shares
Net Sell
2 txns
Insider
KUPINSKY STUART
Role
EVP, CLO & Corp Sec
Sold
1,308 shs ($131K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock F1, F2 | 1,308 | $100.306 | $131K |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Common Stock — 57,352 shares (Direct);
Common Stock — 1,233 shares (Indirect, 401K Plan)
Footnotes (2)
- F1. Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards.
- F2. Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated.
Key Figures
Shares sold under sell-to-cover program: 1,308 shares
Program price per share: $100.306 per share
Direct holdings after transaction: 57,352 shares
+1 more
4 metrics
Shares sold under sell-to-cover program
1,308 shares
Common Stock sold on 2026-08-19 to satisfy tax withholding obligations
Program price per share
$100.306 per share
Per share price attributed to sales for all participants on 2026-08-19
Direct holdings after transaction
57,352 shares
Common Stock directly held by Stuart Kupinsky following the 2026-08-19 sale
Indirect holdings (401K Plan) after transaction
1,233 shares
Common Stock held indirectly through a 401K Plan after the reported date
Key Terms
sell-to-cover program, tax withholding obligations, 401K Plan
3 terms
sell-to-cover program financial
"Represents shares sold as part of a sell-to-cover program to satisfy tax"
tax withholding obligations financial
"program to satisfy tax withholding obligations upon the vesting of stock awards"
401K Plan financial
"Indirect ownership of common stock reported as 401K Plan"
A 401(k) plan is an employer-sponsored retirement savings account that lets workers set aside part of their paycheck into investments, often with tax breaks and sometimes with matching contributions from the employer. Think of it as a workplace piggy bank that grows through employee contributions, optional company top-ups, and market returns; it matters to investors because it shapes household retirement security, drives large flows of money into public markets, and affects a company’s compensation costs and ability to attract and keep talent.
FAQ
What insider transaction did MRCY report for Stuart Kupinsky on August 19, 2026?
MERCURY SYSTEMS INC (MRCY) reported that Stuart Kupinsky had 1,308 shares of common stock sold on 2026-08-19 under a sell-to-cover program to satisfy tax withholding obligations tied to vested stock awards.
What indirect MRCY holdings does Stuart Kupinsky report after the transaction?
In addition to his direct holdings, the filing lists an indirect position of 1,233 shares of MERCURY SYSTEMS INC common stock held through a 401K Plan after the reported transaction.
Is the MRCY Form 4 transaction associated with a Rule 10b5-1 trading plan?
The filing’s Rule 10b5-1 checkbox is not marked as an affirmative plan, and the footnotes describe the sale as part of a sell-to-cover program for tax withholding obligations, without identifying a Rule 10b5-1 plan.
AI-generated analysis. How Rhea-AI works. Not financial advice.
