---
schema_version: "secwatch.filing_event.v1"
accession: "0001049521-22-000034"
form_type: "8-K"
ticker: "MRCY"
cik: "0001049521"
company_name: "MERCURY SYSTEMS INC"
filed_at: "2022-06-24T23:59:59+00:00"
generated_at: "2026-06-24T23:11:06.013534+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Mercury Systems appoints two directors, enters cooperation with JANA and Starboard

## Summary
- Howard Lance (ex-Maxar CEO) and Bill Ballhaus (ex-Blackboard CEO) appointed to board, effective immediately.
- Board temporarily expanded from 9 to 11 directors; will return to 9 after 2022 annual meeting.
- Rights agreement amended to raise ownership threshold from 7.5% to 10% (20% for passive institutions).
- Cooperation agreements include standstill, voting provisions; activists will vote for board nominees.
- New directors added to key committees; Ballhaus on Audit, Lance on Compensation and Government Relations.

## SEC filing metadata
- accession: 0001049521-22-000034
- form_type: 8-K
- ticker: MRCY
- cik: 0001049521
- company_name: MERCURY SYSTEMS INC
- filed_at: 2022-06-24T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 3.03, 5.02, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049521/000104952122000034/0001049521-22-000034-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049521/000104952122000034/mrcy-20220624.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001049521-22-000034
- JSON: https://secwatch.observer/filing/0001049521-22-000034.json
- Plain text: https://secwatch.observer/filing/0001049521-22-000034.txt

## Key facts
- Executive change
  William L. Ballhaus was appointed as Director at MERCURY SYSTEMS INC.
  - Action: appointed
  - Role: Director
  source text: effective as of June 23, 2022, the Board appointed William L. Ballhaus and Howard L. Lance as independent directors in Class I of the Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1049521/000104952122000034/0001049521-22-000034-index.htm
- Executive change
  Howard L. Lance was appointed as Director at MERCURY SYSTEMS INC.
  - Action: appointed
  - Role: Director
  source text: effective as of June 23, 2022, the Board appointed William L. Ballhaus and Howard L. Lance as independent directors in Class I of the Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1049521/000104952122000034/0001049521-22-000034-index.htm

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