---
schema_version: "secwatch.filing_event.v1"
accession: "0001049521-26-000021"
form_type: "8-K"
ticker: "MRCY"
cik: "0001049521"
company_name: "MERCURY SYSTEMS INC"
filed_at: "2026-05-05T23:59:59+00:00"
generated_at: "2026-05-14T23:09:31.169081+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Mercury Systems Q3 FY26: Record bookings $348M, revenue up 11.5% YoY, adjusted EBITDA up 46.2%

## Summary
- Record Q3 bookings of $348M, up 73.7% YoY; book-to-bill 1.48; backlog $1.6B, up 17.9% YoY.
- Revenue $236M, +11.5% YoY; GAAP net loss $3M ($0.04 loss per share) vs. loss of $19M ($0.33).
- Adjusted EPS $0.27 vs $0.06; adjusted EBITDA $36M, +46.2% YoY; margin 15.3%.
- Cash from operations $6M; free cash flow -$2M vs $24M prior year.
- Management cites solid execution and strong demand signals for better-than-expected results.

## SEC filing metadata
- accession: 0001049521-26-000021
- form_type: 8-K
- ticker: MRCY
- cik: 0001049521
- company_name: MERCURY SYSTEMS INC
- filed_at: 2026-05-05T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049521/000104952126000021/0001049521-26-000021-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049521/000104952126000021/mrcy-20260505.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001049521-26-000021
- JSON: https://secwatch.observer/filing/0001049521-26-000021.json
- Plain text: https://secwatch.observer/filing/0001049521-26-000021.txt

## Source-grounded claims
- claim_id: a9249c4c93e492f2455b025af8e9aa6586d84263
  claim: MERCURY SYSTEMS INC reported financial results for third quarter ended March 27, 2026.
  evidence_excerpt: On May 5, 2026 , Mercury Systems, Inc. (the "Company") issued a press release and an earnings presentation regarding its financial results for the third quarter ended March 27, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1049521/000104952126000021/0001049521-26-000021-index.htm

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