WaveMan
WaveMan · Company
MRCY · Mercury Systems Inc
> Search tickers & screens ⌘K
LIVE
← All companies

MRCY Mercury Systems (MRCY) Insider Trading, Ownership & Congress Trades

Semiconductors & Electronics · Electronic components & accessories · CIK 0001049521
Quote by TradingView
Form 144 · 28
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
217
13F, latest reported quarter
Conversions, 180 days
5
Codes C/M, not in net · $19.8M priced

What the filings say about MRCY

Insiders, 180 days
-$43.7M net sold
7 sellers · 8% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$41.9M
28 notices

Mercury Systems insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, MERCURY SYSTEMS INC insiders sold a net $43.7M of stock across 177 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
KUPINSKY STUART
EVP, CLO & Corp Sec
SELL
2026-10-26 SECtraded 2026-10-21
1,000
$76.0K
n/a
Context
  • 9 earlier Form 4 trades (code P or S) here by this insider (9 sales), the last on Sep 21, 2026.
  • The trade is 1.7% of the 59,971 shares held after it.
  • No other insider sold within 30 days.
  • 217 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: EVP, CLO & Corp Sec KUPINSKY STUART sold about $76.0K of MRCY under a 10b5-1 plan on Oct 21, 2026; 217 funds added in the latest 13F quarter.
KUPINSKY STUART
EVP, CLO & Corp Sec
SELL
2026-09-23 SECtraded 2026-09-21
1,000
$86.5K
-4.2%
Context
  • 8 earlier Form 4 trades (code P or S) here by this insider (8 sales), the last on Aug 21, 2026.
  • The trade is 1.6% of the 60,971 shares held after it.
  • 2 other insiders sold within 30 days.
  • 217 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: EVP, CLO & Corp Sec KUPINSKY STUART sold about $86.5K of MRCY under a 10b5-1 plan on Sep 21, 2026; 2 other insiders sold within 30 days and 217 funds added in the latest 13F quarter.
Ratner Steven
EVP, CHRO
SELL
2026-09-08 SECtraded 2026-09-03
4,000
$338.0K
-1.3%
Context
  • 19 earlier Form 4 trades (code P or S) here by this insider (19 sales), the last on Aug 21, 2026.
  • The trade is 20.8% of the 19,275 shares held after it.
  • 4 other insiders sold within 30 days.
  • 217 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: EVP, CHRO Ratner Steven sold about $338.0K of MRCY on Sep 3, 2026; 4 other insiders sold within 30 days and 217 funds added in the latest 13F quarter.
Ballhaus William L
Chairman, President & CEO
SELL
2026-08-27 SECtraded 2026-08-26
38,276
$3.4M
-10.0%
Context
  • 16 earlier Form 4 trades (code P or S) here by this insider (3 buys, 13 sales), the last on Aug 25, 2026.
  • -3.8% median (-4.7% mean) 90-day return after 3 previous buys.
  • The trade is 10.3% of the 372,636 shares held after it.
  • 4 other insiders sold within 30 days.
  • 217 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chairman, President & CEO Ballhaus William L sold about $3.4M of MRCY on Aug 26, 2026; 4 other insiders sold within 30 days and 217 funds added in the latest 13F quarter.
Ballhaus William L
Chairman, President & CEO
SELL
2026-08-27 SECtraded 2026-08-26
10,814
$970.5K
-10.0%
Context
  • 16 earlier Form 4 trades (code P or S) here by this insider (3 buys, 13 sales), the last on Aug 25, 2026.
  • -3.8% median (-4.7% mean) 90-day return after 3 previous buys.
  • The trade is 3.0% of the 361,822 shares held after it.
  • 4 other insiders sold within 30 days.
  • 217 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chairman, President & CEO Ballhaus William L sold about $970.5K of MRCY on Aug 26, 2026; 4 other insiders sold within 30 days and 217 funds added in the latest 13F quarter.
177 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 172 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$43.7M over 180 days
-$41.9M over 90 days
below 79% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
217 funds bought in last quarter
more than 62% of Semiconductors & Electronics
Revenue
+7.9% year over year
below 55% of Semiconductors & Electronics
Margin
-3.0% net margin
below 55% of Semiconductors & Electronics
Buybacks
$15.0M repurchased, FY to 2026-07-03
below 66% of Semiconductors & Electronics
Short interest
10.0% of the float short (float per yahoo 2026-10-27) · 12.5 days to cover · settled 2026-10-15
more than 73% of Semiconductors & Electronics
The situation: each line is one rule over one dataset
Consumer complaints are up 76% year over year.
What changed in the last 30 days
Oct 26EVP, CLO & Corp Sec KUPINSKY STUART sold $76.0K under a 10b5-1 plan (Oct 21)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 21Officer KUPINSKY STUART filed to sell $76.0K by Oct 21 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.

Watch MRCY

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+2.7%12M
-15%+11%+37%+63%2025-102025-122026-022026-042026-062026-082026-10 2025-11-06 · JANA Partners Management, LP sold $75.5M2026-02-09 · JANA Partners Management, LP sold $32.4M2026-03-02 · JANA Partners Management, LP sold $17.2M2026-03-03 · JANA Partners Management, LP sold $15.2M2026-08-24 · Ballhaus William L sold $9.4M2026-08-25 · Ballhaus William L sold $9.4M2026-03-04 · JANA Partners Management, LP sold $9.0M2026-08-21 · Ballhaus William L sold $6.0M2026-08-26 · Ballhaus William L sold $3.4M2026-08-18 · Ballhaus William L sold $2.7M2026-08-19 · Ballhaus William L sold $2.7M2026-08-20 · Ballhaus William L sold $2.1M2026-08-26 · Ballhaus William L sold $970.5K2026-08-18 · Farnsworth David E. sold $818.1K2026-08-19 · Farnsworth David E. sold $818.0K2026-05-26 · LANCE HOWARD L sold $799.6K2026-08-20 · Farnsworth David E. sold $645.8K2026-05-12 · Carvalho Orlando D sold $625.5K2026-02-25 · LANCE HOWARD L sold $430.0K2026-08-17 · Ballhaus William L sold $388.8K2026-09-03 · Ratner Steven sold $338.0K2026-04-16 · Farnsworth David E. sold $307.7K2026-08-25 · Ballhaus William L sold $303.4K2026-08-24 · Ballhaus William L sold $248.1K2026-08-18 · Ratner Steven sold $219.5K2026-08-19 · Ratner Steven sold $219.4K2026-02-17 · KUPINSKY STUART sold $191.1K2026-05-11 · Ratner Steven sold $184.9K2026-08-17 · Farnsworth David E. sold $147.9K2026-08-17 · KUPINSKY STUART sold $131.4K2026-08-19 · KUPINSKY STUART sold $131.2K2026-08-18 · KUPINSKY STUART sold $131.2K2025-11-07 · Plunkett Debora A sold $125.8K2026-05-26 · LANCE HOWARD L sold $123.1K2026-08-17 · Ratner Steven sold $119.2K2026-08-20 · Ratner Steven sold $100.2K2025-11-12 · Munro Douglas sold $97.6K2026-08-21 · KUPINSKY STUART sold $95.2K2026-09-21 · KUPINSKY STUART sold $86.5K2026-10-21 · KUPINSKY STUART sold $76.0K2026-08-18 · Munro Douglas sold $55.0K2026-08-19 · Munro Douglas sold $55.0K2026-10-21 · KUPINSKY STUART filed to sell $76.0K2026-09-21 · KUPINSKY STUART filed to sell $86.5K2026-09-03 · Ratner Steven filed to sell $338.0K2026-08-26 · Ballhaus William L filed to sell $4.4M2026-08-25 · Ballhaus William L filed to sell $9.7M2026-08-24 · Ballhaus William L filed to sell $9.0M2026-08-24 · Ballhaus William L filed to sell $730.0K2026-08-21 · Ballhaus William L filed to sell $6.0M2026-08-21 · KUPINSKY STUART filed to sell $95.2K2026-08-20 · Ballhaus William L filed to sell $2.1M2026-08-20 · Farnsworth David E. filed to sell $645.8K2026-08-20 · Ratner Steven filed to sell $100.2K2026-08-20 · Munro Douglas filed to sell $10.6K2026-08-19 · Ballhaus William L filed to sell $2.7M2026-08-19 · Farnsworth David E. filed to sell $818.0K2026-08-19 · KUPINSKY STUART filed to sell $131.2K2026-08-19 · Munro Douglas filed to sell $55.0K2026-08-19 · Ratner Steven filed to sell $219.4K2026-08-18 · Ballhaus William L filed to sell $2.7M2026-08-18 · Farnsworth David E. filed to sell $818.1K
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns MRCY: institutional holders (13F)

13F holdings, latest reported quarter
BlackRock, Inc.
9,370,902 sh
$1.1B
JANA Partners Management, LP
3,958,849 sh
$484.3M
STATE STREET CORP
3,418,290 sh
$418.0M
VANGUARD PORTFOLIO MANAGEMENT LLC
3,031,459 sh
$370.8M
Invesco Ltd.
2,669,450 sh
$326.6M

Congress trades in MRCY

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

MRCY planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
KUPINSKY STUART
Filed 2026-10-21
$76.0K
KUPINSKY STUART
Filed 2026-09-21
$86.5K
Ratner Steven
Filed 2026-09-03
$338.0K
Ballhaus William L
Filed 2026-08-26
$4.4M
Ballhaus William L
Filed 2026-08-25
$9.7M

MRCY mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
SBH SMALL CAP VALUE FUND
$23.0M position · as of 2026-06-30
5.1%
13D Activist Fund
$5.5M position · as of 2026-06-30
4.8%
CONESTOGA SMALL CAP FUND
$83.7M position · as of 2026-06-30
4.1%
Gabelli Commercial Aerospace and Defense Fund
$1.7M position · as of 2026-06-30
3.9%
CONESTOGA SMID CAP FUND
$18.7M position · as of 2026-06-30
3.9%
Victory RS Select Growth Fund
$2.7M position · as of 2026-06-30
2.9%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $43.7M sold by insiders over 180 days, 217 funds added last quarter, $41.9M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
NVDACRDOVICRMPWRALABPIMTSIMUCRCTAIPAVGOAMD

MRCY financials

Revenue growth
+7.9%
XBRL, annual
Net margin
-3.0%
Complaints, 90 days
37
+76.2% YoY · CFPB
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$983.6M
four quarters, 2025-06-28 to 2026-07-03
Net margin, TTM
-3.0%
net income over revenue, 2025-06-28 to 2026-07-03
Free cash flow, TTM
$68.1M
operating cash flow minus capex, 2025-06-28 to 2026-07-03
Debt to equity
0.13x
LongTermDebt as filed 2017-03-31 (112 months older than the period end) (includes the current portion); equity 2026-07-03
Cash flow to debt
0.53x
TTM operating cash flow over LongTermDebt as filed 2017-03-31 (112 months older than the period end) (includes the current portion)
Return on equity
-2.0%
TTM net income over average of 2025-06-27 and 2026-07-03
Return on assets
-1.2%
TTM net income over average of 2025-06-27 and 2026-07-03
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on capital employed
+0.0%
operating income (EBIT proxy) over average of 2025-06-27 and 2026-07-03 minus current liabilities
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
$4.8B
market value at close 2026-10-26 on 2026-07-31 shares, plus LongTermDebt as filed 2017-03-31 (112 months older than the period end) (includes the current portion), minus cash 2026-07-03
FCF yield
+1.4%
TTM free cash flow over market value at close 2026-10-26
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2026-072025-062024-062023-06
Revenue$983.6M$912.0M$835.3M$973.9M
Gross profit$281.2M$254.5M$195.9M$316.7M
Operating income$280.0K-$19.6M-$147.8M-$21.7M
Net income-$29.7M-$37.9M-$137.6M-$28.3M
EPS (diluted)-0.50-0.65-2.38-0.50
Operating cash flow$102.4M$138.9M$60.4M-$21.3M
Cash$214.3M$309.1M$180.5M$71.6M
Buybacks$15.0M$0$31.0K$63.0K
SEC XBRL, fiscal years, as known on 2026-10-28

MRCY Stock Sonar score 6/7 axes

Find similar shapesCompare

MRCY ranks highest on financial health (65th percentile) and institutional and government (44th), and lowest on insider conviction (10th), among Semiconductors & Electronics peers.

ProfitHealthGrowthInsidersInstitutionsRisk
Profitability
43
Inputs
  • Return on equity-2.0% · 41 pct, sector of 154
  • Return on assets-1.2% · 45 pct, sector of 171
  • Return on invested capitalpre-tax loss, no effective tax rate to apply
  • Return on capital employed+0.0% · 44 pct, sector of 155
Financial health
65
Inputs
  • Debt to equity0.13x · 59 pct, sector of 152
  • Cash flow to debt0.53x · 72 pct, sector of 136
Growth
23
Inputs
  • Revenue growth, YoY+7.9% · 45 pct, sector of 194
  • Backlog growth, YoY-99.9% · 0 pct, sector of 51
Insider conviction
10
Inputs
  • Net Form 4 buying (codes P and S), 180d-$43.4M · 21 pct, sector of 146
  • Insider buyers, 180d0 · 0 pct, sector of 150
Institutional and government
44
Inputs
  • Funds adding, latest quarter217 · 62 pct, sector of 184
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quarters$160K · 25 pct, sector of 53
Risk and compliance
25
Inputs
  • Short interest, % of float+10.0% · 32 pct, sector of 220
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+23.0% · 19 pct, sector of 152
1 not measured: US patents
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

MRCY filings, in plain words

Are Mercury Systems insiders buying or selling MRCY?

In the 180 days to 2026-10-28, Mercury Systems insiders were net sellers, a net $43.7M across purchases and sales reported on Form 4, by 7 sellers.

Are there planned insider sales of MRCY?

Yes. 28 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-28, covering $41.9M of stock; the latest, by KUPINSKY STUART, was filed 2026-10-21.

Read the full summary

In the 180 days to 2026-10-28, Mercury Systems insiders were net sellers of MRCY, a net $43.7M across purchases and sales reported on Form 4 by 7 sellers. 8% of the 36 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. Insiders filed 28 Form 144 notices of intent to sell in the 90 days to 2026-10-28, covering $41.9M of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

Explore insider trading and ownership data

Every company we track, ranked by each kind of filing
Insider buyingInsider sellingCongress stock tradesActivist 13D stakesForm 144 planned salesCEO pay vs performanceAll companies