Mercury Systems Inc. filings document the regulatory record for a Massachusetts aerospace and defense technology company listed on Nasdaq under MRCY. Recent Form 8-K reports furnish earnings releases and presentations for quarterly and fiscal results, including GAAP operating measures and non-GAAP measures such as adjusted EBITDA, adjusted income, adjusted EPS, and free cash flow.
The company’s filings also record material financing and governance matters. Disclosures include amendments to its credit agreement and revolving credit facility, borrowing capacity, maturity, leverage-ratio provisions, and related covenant terms. Proxy and annual meeting filings cover director elections, executive compensation, shareholder voting results, long-term incentive plan approval, and other board and compensation governance items.
Mercury Systems Inc. officer Stuart Kupinsky reported a proposed sale of 1,000 common shares, with an aggregate market value of $76,000.00 and an approximate sale date of October 21, 2026, through Fidelity Brokerage Services LLC. The shares are listed as acquired through restricted stock vesting from the issuer on February 15, 2025, with compensation listed as the nature of payment.
Mercury Systems director Barry R. Nearhos received 235 deferred stock units (DSUs) on October 15, 2026, in lieu of a quarterly cash retainer payment. The DSUs were fully vested upon grant but convert into common stock only when he ceases to be a member of the Board. His reported direct position after the grant was 31,729 shares; the filing also lists 3,500 shares held indirectly by his spouse.
Mercury Systems Inc. (MRCY) EVP, CLO & Corp Sec Stuart Kupinsky sold 1,000 shares of common stock on September 21, 2026, at $86.52 per share. The sale was made under a Rule 10b5-1 trading plan adopted on May 7, 2026. After the sale, he directly held 60,971 shares and reported 1,281 shares held indirectly through a 401K Plan.
MERCURY SYSTEMS INC (MRCY) has a planned sale notice under Rule 144 for 1,000 shares of common stock held for the account of officer Stuart Kupinsky, to be sold through Fidelity Brokerage Services LLC. The shares were acquired on February 15, 2025 via restricted stock vesting as compensation.
The notice also lists recent sales by Kupinsky over the prior three months, and reports 60,136,133 shares of this class outstanding on September 21, 2026; this is a baseline figure, not the amount being offered.
Mercury Systems, Inc. (MRCY) reports that the Essex County Superior Court in Massachusetts granted preliminary approval on September 9 and 15, 2026 to a proposed settlement of stockholder derivative matters related to prior securities litigation. The settlement, agreed on July 9, 2026, is subject to final court approval at a November 19, 2026 hearing.
Under the proposed settlement, Mercury agrees to adopt a package of corporate governance and compliance reforms, including enhanced board executive sessions, expanded internal audit and disclosure controls committees, a formal compliance committee, annual governance and finance training, whistleblower policy enhancements, and amendments to board committee charters. These reforms are to remain in effect for at least four years, subject to limited exceptions.
Mercury and/or its insurer will pay $600,000 in attorneys’ fees and expenses to stockholders’ counsel if the court approves the settlement. Current Mercury common stockholders as of September 15, 2026 are notified of their rights to support or object to the settlement and to participate in the November 19, 2026 settlement hearing under specified procedures.
Mercury Systems, Inc. (MRCY) is soliciting proxies for its 2026 Annual Meeting of Shareholders on October 28, 2026 at 10:00 a.m. Eastern Time at its Andover, Massachusetts headquarters. Shareholders will vote on electing three Class II directors, an advisory say-on-pay vote for fiscal 2026, and ratifying KPMG LLP as independent auditor for fiscal 2027; the Board recommends voting FOR all three proposals.
The record date is September 1, 2026, when 60,863,586 shares of common stock were outstanding, each entitled to one vote. The Board has 9 directors, including 8 independent members (89%), with fully independent key committees and a Lead Independent Director. The proxy highlights ESG, cyber and industrial security credentials, and outlines a director pay program centered on a $75,000 annual cash retainer plus equity awards.
Mercury Systems, Inc. (MRCY) has approved an amendment to the employment agreement of Chairman and CEO William L. (Bill) Ballhaus. On September 15, 2026, the independent directors, following a recommendation from the Human Capital and Compensation Committee, extended the initial term of his agreement through August 15, 2030; all other terms remain unchanged.
On September 16, 2026, the company announced this extension and stated that it reaffirmed the financial guidance previously provided during its earnings conference call on August 18, 2026. The accompanying press release also includes customary forward-looking statement language outlining a wide range of operational, market, regulatory, and geopolitical risks that could cause actual results to differ from expectations.
MERCURY SYSTEMS INC (symbol: MRCY) is the issuer of record for a Form 4/A filing submitted to the SEC. Ratner Steven reported acquisition or exercise transactions in this Form 4 filing.
MERCURY SYSTEMS INC (MRCY) reports that executive vice president and chief human resources officer Steven Ratner received a grant of 5,187 shares of common stock in the form of restricted stock units on August 17, 2026. These restricted stock units vest in equal annual installments over three years. Following this award, Ratner holds 33,646 shares directly and 356 shares indirectly through a 401K plan. No transactions are reported as made under a Rule 10b5-1 trading plan.
MERCURY SYSTEMS INC (symbol: MRCY) is the issuer of record for a Form 4/A filing submitted to the SEC. Munro Douglas reported acquisition or exercise transactions in this Form 4 filing.
MERCURY SYSTEMS INC (MRCY) reports that Senior Vice President and Chief Accounting Officer Douglas Munro received a grant of 2,882 shares of common stock on August 17, 2026 as a compensation-related award. These are restricted stock units that vest in equal annual increments over three years, leaving him with 17,015 directly held shares plus 359 shares held indirectly through a 401K Plan after the grant. The amendment corrects a prior omission of this award and states no transactions were made under a Rule 10b5-1 trading plan.