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 executive Stuart Kupinsky reported an insider stock sale mainly tied to taxes. As EVP, CLO & Corporate Secretary, he sold 2,287 shares of Mercury Systems common stock in an open-market transaction at an average price of $83.5554 per share.
According to the footnotes, these shares were sold under a sell-to-cover program to satisfy tax withholding obligations upon vesting of stock awards, indicating the sale was driven by tax requirements rather than a discretionary portfolio decision. After this transaction, Kupinsky held 68,010 shares directly and 1,082 shares indirectly through a 401(k) plan.
Mercury Systems Inc. senior vice president and chief accounting officer Douglas Munro reported an open-market sale of 582 shares of common stock on February 17, 2026. The shares were sold at a price of $83.5554 per share as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards.
After this transaction, Munro directly held 14,328 shares of Mercury Systems common stock and indirectly held 248 shares through a 401(k) plan. The filing indicates this was a tax-related sale rather than a discretionary reduction of his overall economic interest.
A holder of Mercury Systems (MRCY) stock filed a notice of intent to sell 2,287 shares of common stock through Fidelity Brokerage Services on NASDAQ, with an approximate sale date of February 17, 2026 and an aggregate market value of $191,091.20.
The shares were acquired on February 13, 2026 through restricted stock vesting from the issuer as compensation. The form states that the person does not know of any undisclosed material adverse information about the issuer’s operations.
Mercury Systems had a shareholder file a Form 144 notice to sell 582 shares of its common stock through Fidelity Brokerage Services on 02/17/2026, to be traded on NASDAQ. The filing lists an aggregate market value of 48629.25 for these shares, compared with 60014632 common shares outstanding.
The securities were acquired on 02/13/2026 via restricted stock vesting from the issuer as compensation, and the same date is shown as the payment date. The signer represents they are not aware of any undisclosed material adverse information about Mercury Systems.
JANA Partners Management, LP reported an open-market sale of 400,000 shares of Mercury Systems common stock at $81 per share on February 9, 2026. The position is held indirectly through funds and accounts it manages.
After this transaction, JANA reported 4,566,675 shares beneficially owned indirectly. JANA describes the sale as rebalancing the holdings of its managed funds and accounts and disclaims beneficial ownership beyond its pecuniary interest. JANA may be deemed a director by deputization because a managing partner serves on Mercury’s board.
Mercury Systems, Inc. reported higher sales but continued losses for its fiscal second quarter ended December 26, 2025. Net revenues rose to $232.9 million from $223.1 million a year earlier, while net loss narrowed to $15.1 million from $17.6 million.
For the first six months, revenue reached $458.1 million with a net loss of $27.6 million. Operating cash flow was positive at $53.8 million, and cash and cash equivalents increased to $335.0 million. Long-term debt remained $591.5 million.
The company booked $5.6 million in restructuring charges tied to workforce reductions of about 100 positions and repurchased and retired 221,510 shares for $15.0 million under a new $200 million buyback authorization. Mercury also disclosed a $5.0 million payment to its former CEO under a settlement and a securities class action settlement in principle for $32.5 million, recorded as equal receivable and payable balances. Management noted an internal investigation into certain historical test results on a government-related program and outlined potential regulatory and financial risks if future findings identify noncompliance.
Mercury Systems, Inc. filed a current report to share its financial results for the second quarter ended December 26, 2025. The company issued a press release and an earnings presentation, which are included as exhibits to the report and provide detailed quarterly performance information.
Mercury highlights several non-GAAP metrics alongside GAAP results, including adjusted EBITDA, adjusted income, adjusted EPS, and free cash flow. Management states that these measures exclude certain non-cash and specified charges and are used internally to evaluate performance over time, compare against the marketplace, and set operational goals, while emphasizing they are not a substitute for GAAP figures.
Mercury Systems director Barry R. Nearhos reported receiving additional equity-based compensation. On January 15, 2026, he was granted 474 deferred stock units (DSUs), recorded as an acquisition of common stock at $0 per share in lieu of a quarterly cash retainer for board service. These DSUs are fully vested on the grant date but will not convert into shares of common stock until he ceases to serve on the Board of Directors.
Following this grant, Nearhos is shown as beneficially owning 31,079 shares of common stock directly, plus an additional 3,500 shares indirectly held by his spouse. The filing reflects routine director compensation and updated ownership totals rather than any open-market purchase or sale.
Mercury Systems (MRCY): A senior officer reported a stock sale. On 11/12/2025, the company’s SVP and Chief Accounting Officer sold 1,329 shares of common stock at a weighted average price of $73.4159.
Following the transaction, the reporting person directly holds 14,678 shares and indirectly holds 222 shares via a 401(k) plan. The sale was executed in multiple trades within a price range of $73.415 to $73.424.
Mercury Systems (MRCY): Form 4 insider transaction. JANA Partners Management, LP reported a sale of 1,000,000 shares of common stock on 11/06/2025, coded “S” (sale), at a price of $75.45 per share. Following the transaction, JANA reported 4,966,675 shares beneficially owned on an indirect basis.
The filing notes the trade was made to rebalance holdings across funds and accounts managed by JANA. The firm disclaims beneficial ownership beyond any pecuniary interest. JANA may be deemed a director by deputization because its managing partner, Scott Ostfeld, serves on Mercury’s board.