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MRCY MERCURY SYSTEMS INC SEC Filings & Insider Trading Activity 2026

company
CIK 1049521121 filings
Russell 2000

MRCY at a glance

MERCURY SYSTEMS INC (MRCY, SEC CIK 1049521) filed its latest 10-K annual report on August 18, 2026, a 10-Q quarterly report on May 5, 2026, an 8-K current report on September 18, 2026 and Form 4 insider filings as recently as September 23, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.

  • For the fiscal year ended July 3, 2026 (FY2026), MERCURY SYSTEMS INC (MRCY) reported revenue of $983.6 million (up 7.9% from FY2025) and a net loss of $29.7 million. Diluted EPS was -$0.50.
  • As of June 30, 2026, 30 institutional investment managers tracked by SignalX reported holding MERCURY SYSTEMS INC (MRCY) shares worth $3.9 billion in 13F-HR filings.
  • The most recent insider open-market sale reported on Form 4 was by KUPINSKY STUART on September 21, 2026 of 1,000 shares at $86.52 per share.
  • In the last 90 days, MRCY insiders reported 0 open-market purchases ($0) and 31 open-market sales ($41.9M) on Form 4, a net sale of $41.9M.

Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).

Revenue · FY2026
$983.6M
+7.9% vs prior year
Insiders · 90 days
0 buys · 31 sells
Net −$41.9M
13F holders
30 funds
$3.9B · −1 vs prior quarter
Latest 8-K
Sep 18, 2026
Item 8.01

AI 10-K Annual Report Analysis

Latest 10-K, fiscal year ended Jul 3, 2026

Full analysis →

Business Overview

  • Core business: aerospace and defense electronics providing mission-critical signal and data processing solutions via Mercury Processing Platform
  • New emphasis on AI-ready edge processing technologies with integrated GPUs, FPGAs, and low power processors for real-time intelligent sensor data interpretation
  • Strategic focus on expanding secure, domestically sourced microelectronics manufacturing, including Phoenix campus expansion (+50,000 sq ft) and European local production partnership
  • Backlog growth to $1.9B from $1.4B prior year; R&D spend declined to $59.7M from $67.6M in 2025; employee count steady at 2,102, with 518 in R&D
  • Increased adoption of AI and automation internally to improve efficiency and reduce cycle times, piloting automation in test, production and planning processes

Management Discussion & Analysis

  • Revenue $983.6M, up 7.9% YoY from $912.0M; modules and sub-assemblies up $43.5M, components up $15.1M, integrated solutions up $13.0M
  • Gross margin 28.6% vs 27.9% YoY; operating expenses 28.6% of revenue vs 30.0%, operating loss $(19.6)M vs $(42.7)M adjusted from prior year
  • Best segment growth: Land platform +$53.7M; worst: Airborne platform down $38.1M
  • Cash flow: operating cash flow $102.4M vs $138.9M; $150M debt repayment on Revolver, $15.0M stock repurchase (222 shares at $67.70 avg), capex $34.3M
  • Forward outlook risks: supply chain disruptions, geopolitical volatility, cost increases, and integration risks; new share repurchase authorization $200M with $185M remaining

Risk Factors

  • Regulatory risk: Compliance with FAR and CAS cost accounting standards, with $0.4M billing withheld due to disapproved CAS system, pending DCAA approval in fiscal 2027
  • Geopolitical risk: Dependence on U.S. Government defense spending with 97% of net revenues in 2026; risk of funding delays, reductions, or government shutdowns affecting contracts
  • Operational risk: Sole-source supplier dependency for critical components like FPGAs and ASICs, risking production delays or cancellations if disrupted
  • Competitive risk: New low-cost modular system entrants and commercial server manufacturers may reduce demand; limited engagement with labs like DARPA restricts design influence
  • Financial risk: $441.5M drawn on $850M revolving credit facility; interest rate exposure could increase annual interest expense by $1M per 100 bps rise

AI summary of the MRCY 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K

AI 10-Q Quarterly Report Analysis

Latest 10-Q, quarter ended Mar 27, 2026

Management Discussion & Analysis

  • Revenue $235.8M, up 11.5% YoY from $211.4M
  • Gross margin 29.3% vs 27.0% YoY
  • Best product grouping: modules and sub-assemblies, up $17.5M; components worst, down $4.1M
  • Operating income $5.2M, versus operating loss $17.3M YoY
  • Headwinds: defense funding timing, federal shutdowns, geopolitical volatility, supply-chain delays and labor shortages mentioned

Risk Factors

  • No risk-factors section provided; submitted text covers unregistered sales, repurchases, other information, and exhibits
  • Share-repurchase authorization up to $200.0 million, with $185,003 thousand remaining
  • No common-stock repurchases during the quarter ended March 27, 2026
  • No directors or executive officers adopted, modified, or terminated Rule 10b5-1 arrangements during the quarter

AI summary of the MRCY 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K

AI 8-K Current Report Analysis

The most recent material events, by 8-K item

Filed Sep 18, 2026Full analysis →

Item 8.01: Other Events

  • Preliminary court approval of settlement in two Massachusetts stockholder derivative actions involving Mercury Systems
  • Settlement agreement reached July 9, 2026; court orders entered September 9 and September 15, 2026
Filed Sep 16, 2026Full analysis →

Item 1.01: Entry into a Material Definitive Agreement

  • CEO Ballhaus employment extended through August 15, 2030, supporting leadership continuity
  • Company reaffirmed financial guidance from its August 18, 2026 earnings call
Filed Aug 18, 2026Full analysis →

Item 2.02: Results of Operations and Financial Condition

  • Management highlights adjusted EBITDA, adjusted income, adjusted EPS, and free cash flow as supplementary performance measures
  • Non-GAAP measures exclude certain non-cash and specified charges, potentially differing materially from GAAP results

AI summaries of MRCY 8-K current reports filed with the SEC. What 8-K item codes mean

SignalX for MRCY

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Recent Insider Transactions (Form 4)

Latest reported trades by officers, directors and 10% owners

InsiderTypeDatePrice
KUPINSKY STUARTSellSep 21, 2026$86.52
Ratner StevenSellSep 3, 2026$84.51
Ballhaus William LMAug 26, 2026$43.00
Ballhaus William LSellAug 26, 2026$89.74
Ballhaus William LSellAug 26, 2026$88.91
Ballhaus William LMAug 26, 2026-
Ballhaus William LSellAug 25, 2026$87.09
Ballhaus William LSellAug 25, 2026$87.99

Financial Summary
XBRL

Annual financial summary from SEC XBRL data
MetricFY2024FY2025FY2026
Profitability
Revenue-$912.0M$983.6M
Gross Profit-$254.5M$281.2M
Operating Income--$19.6M$280K
Net Income--$37.9M-$29.7M
Gross Margin-27.9%28.6%
Op. Margin--2.2%0.0%
Net Margin--4.2%-3.0%
Balance Sheet
Total Assets$2.4B$2.4B$2.3B
Equity-$1.5B$1.5B
ROE--2.6%-2.0%
Per Share
EPS-$-0.65$-0.50
Cash Flow
Operating CF-$138.9M$102.4M
CapEx$34.3M$19.8M$34.3M

Source: XBRL data in MERCURY SYSTEMS INC (MRCY)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →

13F Fund Holdings: Quarterly Trend

Latest: Q2 2026

Aggregate MRCY share value held by 13F filers tracked by SignalX, by quarter.

Quarterly totals table
MRCY shares held by 13F filers tracked by SignalX, by quarter
QuarterFundsTotal value
Q2 202630$3.91B
Q1 202631$2.23B
Q4 202529$2.14B
Q3 202530$2.16B
Q2 202529$1.42B
Q1 202525$723.6M
Q4 202420$644.0M
Q3 202418$350.0M
Position changes: Q1 2026 → Q2 2026
Top Buyers
Top Sellers
New Positions
Closed Positions

Source: 13F-HR filings on SEC EDGAR (aggregated from 212 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work

MRCY filing archive

AI analysis pages for each 10-K, 10-Q and 8-K

Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4

FormFiling dateAnalysisSEC
4Sep 23, 2026--
8-KSep 18, 2026Analysis-
8-KSep 16, 2026Analysis-
4Sep 15, 2026--
4Sep 15, 2026--
4Sep 15, 2026--
4Sep 15, 2026--
4Sep 15, 2026--
4Sep 8, 2026--
4Aug 27, 2026--
4Aug 25, 2026--
4Aug 25, 2026--
4Aug 25, 2026--
4Aug 21, 2026--
4Aug 21, 2026--
4Aug 21, 2026--
4Aug 21, 2026--
4Aug 21, 2026--
4Aug 19, 2026--
4Aug 19, 2026--
4Aug 19, 2026--
4Aug 19, 2026--
4Aug 19, 2026--
4Aug 18, 2026--
4Aug 18, 2026--

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MRCY SEC filings: frequently asked questions

Are MRCY insiders buying or selling?

In the last 90 days, MERCURY SYSTEMS INC (MRCY) officers, directors and 10% owners reported no open-market purchases and 31 open-market sales worth $41.9 million by 5 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.

Which institutions hold MRCY stock?

As of June 30, 2026, the largest MERCURY SYSTEMS INC (MRCY) holders among the 13F filers tracked by SignalX were BlackRock ($1.1 billion), State Street Corp ($418.0 million), Vanguard Portfolio Management LLC ($370.8 million), Invesco Ltd ($326.6 million), Vanguard Capital Management LLC ($296.4 million). 13F-HR reports are filed up to 45 days after each quarter ends.

What was MRCY's revenue in fiscal year 2026?

For the fiscal year ended July 3, 2026 (FY2026), MERCURY SYSTEMS INC (MRCY) reported revenue of $983.6 million (up 7.9% from FY2025) and a net loss of $29.7 million. Diluted EPS was -$0.50. The figures come from the XBRL data in the 10-K.

What are the main risks in MRCY's latest 10-K?

In the 10-K filed August 18, 2026, MERCURY SYSTEMS INC (MRCY) flagged: Regulatory risk: Compliance with FAR and CAS cost accounting standards, with $0.4M billing withheld due to disapproved CAS system, pending DCAA approval in fiscal 2027. Geopolitical risk: Dependence on U.S. Government defense spending with 97% of net revenues in 2026; risk of funding delays, reductions, or government shutdowns affecting contracts. (AI summary of the Risk Factors section.)

What did MRCY report in its latest 8-K?

MERCURY SYSTEMS INC (MRCY) filed an 8-K on September 18, 2026 reporting Item 8.01 (Other Events). Preliminary court approval of settlement in two Massachusetts stockholder derivative actions involving Mercury Systems.

What are the latest MRCY SEC filings?

MERCURY SYSTEMS INC (MRCY) filed its latest 10-K annual report on August 18, 2026, a 10-Q quarterly report on May 5, 2026, an 8-K current report on September 18, 2026 and a Form 4 insider filing on September 23, 2026.

What is MRCY's SEC CIK number?

MERCURY SYSTEMS INC (MRCY)'s SEC Central Index Key (CIK) is 1049521. EDGAR lists every MRCY filing under that number.

Ask anything about MRCY

The research agent reads MRCY's filings, financials, insider trades and 13F holders, then answers with sources.