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MRCY 8-K: Executive departure

Mercury Systems

Filed with the SEC on · accession 0001049521-26-000096

MRCY filed a 8-K (current report) with the SEC on Nov 10, 2026. Mercury Systems announced that Chief Accounting Officer Douglas Munro will depart effective November 13, 2026, and appointed Brian Caulfield as acting Chief Accounting Officer. The stock moved +5.0% by the first close after the filing.

Summary of the filing

Mercury Systems announced that Chief Accounting Officer Douglas Munro will depart effective November 13, 2026, and appointed Brian Caulfield as acting Chief Accounting Officer. Additionally, CFO David Farnsworth's role was formalized to include Chief Operating Officer responsibilities.

For details, click here →How to read a 8-K →

Key details

Restricted stock unit award to David E. Farnsworth$500K
Retention bonus for Brian Caulfield$50K
RegistrantMercury Systems, Inc.
Senior vice president and chief accounting officerDouglas Munro
Acting chief accounting officerBrian Caulfield
Executive vice president, chief financial officer, and chief operating officerDavid E. Farnsworth

How MRCY stock reacted

Close before

$79.62

Nov 9, 2026

First close after

+4.97%

$83.58

5 trading days

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Since filing

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Frequently asked questions

What did MRCY file with the SEC on Nov 10, 2026?

MRCY filed a 8-K (Executive departure). Mercury Systems announced that Chief Accounting Officer Douglas Munro will depart effective November 13, 2026, and appointed Brian Caulfield as acting Chief Accounting Officer. Additionally, CFO David Farnsworth's role was formalized to include Chief Operating Officer responsibilities.

What does a executive departure mean for MRCY stock?

Not always. A planned retirement with a successor is usually calm; a sudden departure “effective immediately”, especially of a CFO or near results, often worries investors.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did MRCY stock react to this filing?

MRCY closed at $79.62 before the filing and $83.58 on Nov 10, 2026 (+4.97%).

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