---
schema_version: "secwatch.filing_event.v1"
accession: "0001049521-26-000081"
form_type: "8-K"
ticker: "MRCY"
cik: "0001049521"
company_name: "MERCURY SYSTEMS INC"
filed_at: "2026-09-18T20:01:41+00:00"
generated_at: "2026-09-18T20:03:18.613813+00:00"
event_type: "litigation"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Mercury Systems derivative settlement gets preliminary court approval; $600K fees, governance reforms

## Summary
- Court granted preliminary approval Sept 9 and 15, 2026 for derivative settlement (Jones and McKinnon actions).
- Settlement includes corporate governance reforms and Mercury/insurer pays $600,000 in plaintiffs' attorneys' fees.
- Final approval hearing scheduled for Nov 19, 2026 at Essex County Superior Court.
- Related securities class action (North Collier) settled; final approval May 19, 2026.

## SEC filing metadata
- accession: 0001049521-26-000081
- form_type: 8-K
- ticker: MRCY
- cik: 0001049521
- company_name: MERCURY SYSTEMS INC
- filed_at: 2026-09-18T20:01:41+00:00
- event_type: litigation
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049521/000104952126000081/0001049521-26-000081-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049521/000104952126000081/mrcy-20260918.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001049521-26-000081
- JSON: https://secwatch.observer/filing/0001049521-26-000081.json
- Plain text: https://secwatch.observer/filing/0001049521-26-000081.txt

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