---
schema_version: "secwatch.filing_event.v1"
accession: "0001049521-26-000096"
form_type: "8-K"
ticker: "MRCY"
cik: "0001049521"
company_name: "MERCURY SYSTEMS INC"
filed_at: "2026-11-10T21:01:58+00:00"
generated_at: "2026-11-10T21:03:09.209675+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Mercury Systems Q1 FY27 revenue $253M, +12.4% YoY; bookings $370M, +48%; raises FY27 outlook

## Summary
- Revenue $253M vs $225M a year ago, up 12.4%; GAAP net income $13M ($0.21 EPS) vs $13M loss ($0.21 loss).
- Adjusted EPS $0.52 vs $0.26; adjusted EBITDA $56M, up 58.6%, at 22.3% margin; bookings $370M, book-to-bill 1.46.
- Backlog approaching $2.1B, up 44.7% YoY (+$637M); next-12-month backlog over $1.0B; net debt $232M, down 19%.
- FY27 outlook raised; Q1 operating cash flow -$14M and free cash flow -$24M vs -$4M a year ago.
- Dave Farnsworth formalized as COO alongside CFO, $500K RSU award; CAO Douglas Munro exits Nov 13; Brian Caulfield acting CAO with $50K retention bonus.

## SEC filing metadata
- accession: 0001049521-26-000096
- form_type: 8-K
- ticker: MRCY
- cik: 0001049521
- company_name: MERCURY SYSTEMS INC
- filed_at: 2026-11-10T21:01:58+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049521/000104952126000096/0001049521-26-000096-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049521/000104952126000096/mrcy-20261110.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001049521-26-000096
- JSON: https://secwatch.observer/filing/0001049521-26-000096.json
- Plain text: https://secwatch.observer/filing/0001049521-26-000096.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.