MRCYNasdaq

MERCURY SYSTEMS INC

Alert me on MRCY

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Sep 24 Sale KUPINSKY STUART Insider

1 week

+1.1%S&P −0.4%

1 month

−10.0%S&P −0.9%

3 months

Result in42 trading days

6 months

Result in105 trading days

Sep 9 Sale Ratner Steven Insider

1 week

+8.0%S&P −1.1%

1 month

−2.8%S&P +1.8%

3 months

Result in31 trading days

6 months

Result in94 trading days

Aug 28 Sale Ballhaus William L Insider

1 week

−6.9%S&P +0.1%

1 month

−6.7%S&P −0.4%

3 months

Result in24 trading days

6 months

Result in87 trading days

Aug 26 Sale Ratner Steven Insider

1 week

−8.0%S&P −0.1%

1 month

−8.4%S&P +0.9%

3 months

Result in22 trading days

6 months

Result in85 trading days

Aug 26 Sale Ballhaus William L Insider

1 week

−8.0%S&P −0.1%

1 month

−8.4%S&P +0.9%

3 months

Result in22 trading days

6 months

Result in85 trading days

Show all 29

Aug 26 Sale KUPINSKY STUART Insider

1 week

−8.0%S&P −0.1%

1 month

−8.4%S&P +0.9%

3 months

Result in22 trading days

6 months

Result in85 trading days

Aug 22 Sale Farnsworth David E. Insider

1 week

−2.5%S&P +0.5%

1 month

−7.7%S&P +0.8%

3 months

Result in20 trading days

6 months

Result in83 trading days

Aug 22 Sale KUPINSKY STUART Insider

1 week

−2.5%S&P +0.5%

1 month

−7.7%S&P +0.8%

3 months

Result in20 trading days

6 months

Result in83 trading days

Aug 22 Sale Ballhaus William L Insider

1 week

−2.5%S&P +0.5%

1 month

−7.7%S&P +0.8%

3 months

Result in20 trading days

6 months

Result in83 trading days

Aug 22 Sale Ratner Steven Insider

1 week

−2.5%S&P +0.5%

1 month

−7.7%S&P +0.8%

3 months

Result in20 trading days

6 months

Result in83 trading days

Aug 22 Sale Munro Douglas Insider

1 week

−2.5%S&P +0.5%

1 month

−7.7%S&P +0.8%

3 months

Result in20 trading days

6 months

Result in83 trading days

Aug 20 Sale Ballhaus William L Insider

1 week

−4.0%S&P +1.1%

1 month

−9.1%S&P +1.7%

3 months

Result in18 trading days

6 months

Result in81 trading days

Aug 20 Sale Ratner Steven Insider

1 week

−4.0%S&P +1.1%

1 month

−9.1%S&P +1.7%

3 months

Result in18 trading days

6 months

Result in81 trading days

Aug 20 Sale Farnsworth David E. Insider

1 week

−4.0%S&P +1.1%

1 month

−9.1%S&P +1.7%

3 months

Result in18 trading days

6 months

Result in81 trading days

Aug 20 Sale KUPINSKY STUART Insider

1 week

−4.0%S&P +1.1%

1 month

−9.1%S&P +1.7%

3 months

Result in18 trading days

6 months

Result in81 trading days

Aug 20 Sale Munro Douglas Insider

1 week

−4.0%S&P +1.1%

1 month

−9.1%S&P +1.7%

3 months

Result in18 trading days

6 months

Result in81 trading days

May 28 Sale LANCE HOWARD L Insider

1 week

+9.0%S&P +0.3%

1 month

+2.0%S&P −1.6%

3 months

−16.3%S&P +2.4%

6 months

Result in23 trading days

May 14 Sale Carvalho Orlando D Insider

1 week

+1.9%S&P −0.7%

1 month

+22.6%S&P +0.9%

3 months

+17.5%S&P +4.0%

6 months

Result in14 trading days

May 13 Sale Ratner Steven Insider

1 week

+2.5%S&P −0.1%

1 month

+30.1%S&P −0.1%

3 months

+18.7%S&P +5.1%

6 months

Result in13 trading days

Apr 18 Sale Farnsworth David E. Insider

1 week

−8.4%S&P +0.9%

1 month

+10.3%S&P +3.5%

3 months

+17.3%S&P +5.9%

6 months

−9.7%S&P +8.7%

Mar 5 Sale JANA Partners Management, LP Insider

1 week

−4.1%S&P −2.2%

1 month

−10.8%S&P −3.0%

3 months

+38.7%S&P +11.4%

6 months

−0.3%S&P +14.1%

Feb 27 Sale LANCE HOWARD L Insider

1 week

−2.9%S&P −2.0%

1 month

−21.5%S&P −7.6%

3 months

+25.5%S&P +10.6%

6 months

−0.6%S&P +12.7%

Feb 20 Sale KUPINSKY STUART Insider

1 week

+1.6%S&P −0.5%

1 month

−10.7%S&P −4.7%

3 months

+10.0%S&P +8.0%

6 months

+4.3%S&P +11.7%

Feb 20 Sale Munro Douglas Insider

1 week

+1.6%S&P −0.5%

1 month

−10.7%S&P −4.7%

3 months

+10.0%S&P +8.0%

6 months

+4.3%S&P +11.7%

Feb 12 Sale JANA Partners Management, LP Insider

1 week

+9.2%S&P +1.2%

1 month

+0.6%S&P −1.8%

3 months

+17.8%S&P +10.1%

6 months

+38.5%S&P +14.6%

Nov 14, 2025 Sale Munro Douglas Insider

1 week

−5.9%S&P −1.9%

1 month

+1.3%S&P +1.0%

3 months

+22.3%S&P +2.4%

6 months

+31.0%S&P +9.8%

Nov 11, 2025 Sale JANA Partners Management, LP Insider

1 week

−6.6%S&P −3.4%

1 month

+5.3%S&P +0.9%

3 months

+10.3%S&P 0.0%

6 months

+30.0%S&P +10.2%

Nov 11, 2025 Sale Plunkett Debora A Insider

1 week

−6.6%S&P −3.4%

1 month

+5.3%S&P +0.9%

3 months

+10.3%S&P 0.0%

6 months

+30.0%S&P +10.2%

Sep 18, 2025 Sale Munro Douglas Insider

1 week

−5.1%S&P −0.4%

1 month

−2.0%S&P +0.6%

3 months

−9.7%S&P +1.7%

6 months

+0.2%S&P −1.2%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for MRCY

96 held · newest 596 held · newest 2

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Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Jun 30, 2026 Schedule 13G

Vanguard Portfolio Management: 5.1%, 3,086,142 shares

Jun 30, 2026 Schedule 13G, amended

BlackRock, Inc.: 14.4%, 8,619,527 shares

Mar 31, 2026 Schedule 13G

STATE STREET CORPORATION: 6.4%, 3,865,719 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Mar 3, 2026 Schedule 13D, amended

JANA Partners Management, LP: 6.9%, 4,114,618 shares

Sep 30, 2025 Schedule 13G, amended

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC: 4.2%, 2,526,133 shares

Nov 6, 2025 Schedule 13D, amended

JANA Partners Management, LP: 8.3%, 4,966,675 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

Jun 29, 2026 Department of the Air Force $11.4M SECURE DATA MISSION SYSTEM

1 award, $11.4M in the last 12 monthsOriginal awards ↗

Lobbying

Last four quarters

$40KQ4 2025

NoneQ1 2026

NoneQ2 2026

NoneQ3 2026

Nothing on file for Q3 2026.

Read from LDA.gov on Sep 23, 2026. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.