Welcome to our dedicated page for Mercury Sys SEC filings (Ticker: MRCY), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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.
William Blair Investment Management, LLC filed Amendment No. 8 to Schedule 13G disclosing its beneficial ownership of Mercury Systems, Inc. (MRCY) common stock as of 30 June 2025.
- Owns 4,695,683 shares, equal to 7.9 % of the outstanding class.
- Holds sole voting power over 4,375,808 shares and sole dispositive power over the full 4,695,683 shares; no shared authority reported.
- Filed under Rule 13d-1(b) as a registered investment adviser (IA) organized in Delaware.
- Certification states the position is held in the ordinary course of business and not to influence control of the issuer.
The filing confirms a sizable institutional stake but does not provide financial performance data or signal strategic changes at Mercury Systems.