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MRCY · Mercury Systems Inc

Industrials · −2.8% on Oct 16

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Updated Oct 17 · 6 feeds behind: Insider filings, 4 days, and 5 more · Every feed →

On this page

The market view

Price chart

The interactive MRCY chart (by TradingView) loads here.

Our take

3 rules fired on MRCY

In short: none of these rules has solid or some evidence yet, so they show no clear lean on MRCY.

How each did in past tests, against similar stocks over 3 months. Past results don't predict future ones.

The 0–100 score for MRCY, and which of these rules are open on it right now
Members see one number for how strongly these rules agree on MRCY, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
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Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of MRCY. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 23, 2026–Oct 20, 2026 · UTC dates · today is excluded

Insider sales

Short history

Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual.

Latest 28 days
1
Earlier median
2
Earlier range
2–2
Distinct filers per 28 daysScale: 0–5
Oct 22, 2025Oct 20, 2026
Earlier periodsLatest 28 daysEarlier median 2Limited or missing history

Who appears in the latest period?

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Aug 19, 2026. Newest disclosure across this feed: Oct 16, 2026.

Earlier periods in the comparison: 1. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 22, 2025–Nov 18, 2025—Unavailable
Nov 19, 2025–Dec 16, 2025—Unavailable
Dec 17, 2025–Jan 13, 2026—Unavailable
Jan 14, 2026–Feb 10, 2026—Unavailable
Feb 11, 2026–Mar 10, 2026—Unavailable
Mar 11, 2026–Apr 7, 2026—Unavailable
Apr 8, 2026–May 5, 2026—Unavailable
May 6, 2026–Jun 2, 2026—Unavailable
Jun 3, 2026–Jun 30, 2026—Unavailable
Jul 1, 2026–Jul 28, 2026—Unavailable
Jul 29, 2026–Aug 25, 20260Partial; excluded
Aug 26, 2026–Sep 22, 20260Within stored history
Sep 23, 2026–Oct 20, 2026Latest period0Within stored history
Insider sales · Short history

Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 2; range: 2–2.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 22, 2025–Nov 18, 2025—Unavailable
Nov 19, 2025–Dec 16, 2025—Unavailable
Dec 17, 2025–Jan 13, 2026—Unavailable
Jan 14, 2026–Feb 10, 2026—Unavailable
Feb 11, 2026–Mar 10, 2026—Unavailable
Mar 11, 2026–Apr 7, 2026—Unavailable
Apr 8, 2026–May 5, 2026—Unavailable
May 6, 2026–Jun 2, 2026—Unavailable
Jun 3, 2026–Jun 30, 2026—Unavailable
Jul 1, 2026–Jul 28, 2026—Unavailable
Jul 29, 2026–Aug 25, 20265Partial; excluded
Aug 26, 2026–Sep 22, 20262Within stored history
Sep 23, 2026–Oct 20, 2026Latest period1Within stored history
Congress purchases · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 22, 2025–Nov 18, 2025—Unavailable
Nov 19, 2025–Dec 16, 2025—Unavailable
Dec 17, 2025–Jan 13, 2026—Unavailable
Jan 14, 2026–Feb 10, 2026—Unavailable
Feb 11, 2026–Mar 10, 2026—Unavailable
Mar 11, 2026–Apr 7, 2026—Unavailable
Apr 8, 2026–May 5, 2026—Unavailable
May 6, 2026–Jun 2, 2026—Unavailable
Jun 3, 2026–Jun 30, 2026—Unavailable
Jul 1, 2026–Jul 28, 2026—Unavailable
Jul 29, 2026–Aug 25, 2026—Unavailable
Aug 26, 2026–Sep 22, 2026—Unavailable
Sep 23, 2026–Oct 20, 2026Latest period—Unavailable
Congress sales · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 22, 2025–Nov 18, 2025—Unavailable
Nov 19, 2025–Dec 16, 2025—Unavailable
Dec 17, 2025–Jan 13, 2026—Unavailable
Jan 14, 2026–Feb 10, 2026—Unavailable
Feb 11, 2026–Mar 10, 2026—Unavailable
Mar 11, 2026–Apr 7, 2026—Unavailable
Apr 8, 2026–May 5, 2026—Unavailable
May 6, 2026–Jun 2, 2026—Unavailable
Jun 3, 2026–Jun 30, 2026—Unavailable
Jul 1, 2026–Jul 28, 2026—Unavailable
Jul 29, 2026–Aug 25, 2026—Unavailable
Aug 26, 2026–Sep 22, 2026—Unavailable
Sep 23, 2026–Oct 20, 2026Latest period—Unavailable
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Company filings

Insiders

Owners & lobbying

All 37 records in this snapshot
  1. Disclosed
    Stuart Kupinsky · Sale

    Transaction dated Sep 21, 2026

  2. Filed
  3. Filed
  4. Filed
  5. Filed
  6. Filed
  7. Disclosed
    Steven Ratner · Sale

    Transaction dated Sep 3, 2026

  8. Filed
  9. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 25, 2026

  10. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 26, 2026

  11. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 25, 2026

  12. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 26, 2026

  13. Filed
  14. Filed
  15. Disclosed
    Steven Ratner · Sale

    Transaction dated Aug 21, 2026

  16. Disclosed
    Stuart Kupinsky · Sale

    Transaction dated Aug 21, 2026

  17. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 24, 2026

  18. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 21, 2026

  19. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 21, 2026

  20. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 24, 2026

  21. Filed
  22. Disclosed
    David E. Farnsworth · Sale

    Transaction dated Aug 19, 2026

  23. Disclosed
    David E. Farnsworth · Sale

    Transaction dated Aug 20, 2026

  24. Disclosed
    Douglas Munro · Sale

    Transaction dated Aug 20, 2026

  25. Disclosed
    Douglas Munro · Sale

    Transaction dated Aug 19, 2026

  26. Disclosed
    Steven Ratner · Sale

    Transaction dated Aug 20, 2026

  27. Disclosed
    Steven Ratner · Sale

    Transaction dated Aug 19, 2026

  28. Disclosed
    Stuart Kupinsky · Sale

    Transaction dated Aug 19, 2026

  29. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 19, 2026

  30. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 20, 2026

  31. Disclosed
    Steven Ratner · Sale

    Transaction dated Aug 18, 2026

  32. Disclosed
    Stuart Kupinsky · Sale

    Transaction dated Aug 18, 2026

  33. Disclosed
    Stuart Kupinsky · Sale

    Transaction dated Aug 17, 2026

  34. Disclosed
    William L Ballhaus · Sale

    Transaction dated Aug 18, 2026

  35. Filed
  36. Filed
  37. Filed

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

No Congress trades on MRCY disclosed in the last 90 days.

See every Congress trade on MRCY →

Company insiders

0 buys · 16 sells (31 filed lots) · $41.9M sold

  1. ▼ SELLStuart Kupinsky EVP, CLO & Corp SecMRCY Mercury Systems Inc$86.5Kdisclosed Sep 23 · filed 2 days after the trade
  2. ▼ SELLSteven Ratner EVP, CHROMRCY Mercury Systems Inc$338Kdisclosed Sep 8 · filed 5 days after the trade · late
  3. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$303Kdisclosed Aug 27 · filed 2 days after the trade
  4. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$970Kdisclosed Aug 27 · filed 1 day after the trade
  5. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$9.4Mdisclosed Aug 27 · filed 2 days after the trade
  6. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$3.4Mdisclosed Aug 27 · filed 1 day after the trade
  7. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$9.4Mdisclosed Aug 25 · filed 1 day after the trade
  8. ▼ SELLSteven Ratner EVP, CHROMRCY Mercury Systems Inc$32.5Kdisclosed Aug 25 · filed 4 days after the trade
  9. ▼ SELLStuart Kupinsky EVP, CLO & Corp SecMRCY Mercury Systems Inc$95.2Kdisclosed Aug 25 · filed 4 days after the trade
  10. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$19.1Kdisclosed Aug 25 · filed 4 days after the trade
See every insider trade on MRCY →

Big holders (Schedule 13D / 13G): 1 filing in the last 90 days · newest: Vanguard Portfolio Management LLC (13G), Jul 31, 2026 ↗

Filings & events

Company filings (8-K) 64

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Quarterly or yearly results · item 2.0210
  • Directors or officers joined, left or got new pay · item 5.0210
  • Shared information with investors · item 7.019
  • Other events · item 8.015
  • Signed a major agreement · item 1.015
  • Took on new debt · item 2.033

Filing red flags 4

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

Lobbying 10

Lobbying reports filed with the Senate for the company.

$410K across 10 reports

Issues named in the most reports

  • Defense 6
  • Taxation/Internal Revenue Code 1

Planned insider sales (Form 144) 75

Notices insiders file before they sell certain shares, such as ones they got straight from the company.

27 in the last 90 days · 75 notices on file

The notices on file don't give the sale's size; each sale shows up under company insiders once it is reported.

5% owners (13D / 13G) 7

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13D, may push for changes: 3 filings
  • 13G, just holds: 4 filings

Filed most: State Street Corp (3) · JANA Partners Management, LP (3) · Vanguard Portfolio Management LLC (1)

Biggest named funds (13F)

The largest MRCY holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on MRCY

  1. ▼ SELLStuart Kupinsky EVP, CLO & Corp SecMRCY Mercury Systems Inc$86.5Kdisclosed Sep 23 · filed 2 days after the trade
  2. ▼ SELLSteven Ratner EVP, CHROMRCY Mercury Systems Inc$338Kdisclosed Sep 8 · filed 5 days after the trade · late
  3. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$303Kdisclosed Aug 27 · filed 2 days after the trade
  4. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$970Kdisclosed Aug 27 · filed 1 day after the trade
  5. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$9.4Mdisclosed Aug 27 · filed 2 days after the trade
  6. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$3.4Mdisclosed Aug 27 · filed 1 day after the trade
  7. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$9.4Mdisclosed Aug 25 · filed 1 day after the trade
  8. ▼ SELLSteven Ratner EVP, CHROMRCY Mercury Systems Inc$32.5Kdisclosed Aug 25 · filed 4 days after the trade
  9. ▼ SELLStuart Kupinsky EVP, CLO & Corp SecMRCY Mercury Systems Inc$95.2Kdisclosed Aug 25 · filed 4 days after the trade
  10. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$19.1Kdisclosed Aug 25 · filed 4 days after the trade
  11. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$6Mdisclosed Aug 25 · filed 4 days after the trade
  12. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$248Kdisclosed Aug 25 · filed 1 day after the trade
  13. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$2.7Mdisclosed Aug 21 · filed 2 days after the trade
  14. ▼ SELLSteven Ratner EVP, CHROMRCY Mercury Systems Inc$100Kdisclosed Aug 21 · filed 1 day after the trade
  15. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$2.1Mdisclosed Aug 21 · filed 1 day after the trade
  16. ▼ SELLStuart Kupinsky EVP, CLO & Corp SecMRCY Mercury Systems Inc$131Kdisclosed Aug 21 · filed 2 days after the trade
  17. ▼ SELLDavid E. Farnsworth EVP, CFOMRCY Mercury Systems Inc$818Kdisclosed Aug 21 · filed 2 days after the trade
  18. ▼ SELLDavid E. Farnsworth EVP, CFOMRCY Mercury Systems Inc$646Kdisclosed Aug 21 · filed 1 day after the trade
  19. ▼ SELLSteven Ratner EVP, CHROMRCY Mercury Systems Inc$219Kdisclosed Aug 21 · filed 2 days after the trade
  20. ▼ SELLDouglas Munro SVP, CAOMRCY Mercury Systems Inc$10.6Kdisclosed Aug 21 · filed 1 day after the trade
  21. ▼ SELLDouglas Munro SVP, CAOMRCY Mercury Systems Inc$55Kdisclosed Aug 21 · filed 2 days after the trade
  22. ▼ SELLStuart Kupinsky EVP, CLO & Corp SecMRCY Mercury Systems Inc$131Kdisclosed Aug 19 · filed 1 day after the trade
  23. ▼ SELLSteven Ratner EVP, CHROMRCY Mercury Systems Inc$219Kdisclosed Aug 19 · filed 1 day after the trade
  24. ▼ SELLWilliam L Ballhaus Chairman, President & CEOMRCY Mercury Systems Inc$2.7Mdisclosed Aug 19 · filed 1 day after the trade
  25. ▼ SELLStuart Kupinsky EVP, CLO & Corp SecMRCY Mercury Systems Inc$131Kdisclosed Aug 19 · filed 2 days after the trade
See all 31 trades on MRCY →
People & votes

Which members of Congress traded MRCY, sponsored bills that touch it and voted on them — opens here.