---
schema_version: "secwatch.filing_event.v1"
accession: "0000866291-21-000059"
form_type: "8-K"
ticker: "ALGM"
cik: "0000866291"
company_name: "ALLEGRO MICROSYSTEMS, INC."
filed_at: "2021-11-10T23:59:59+00:00"
generated_at: "2026-06-28T10:21:46.831501+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Allegro MicroSystems names Susan Lynch to Board replacing Christine King

## Summary
- Christine King resigned from Board and Audit/Comp Committees effective immediately; no disagreement with company.
- Susan Lynch elected as Class III Director and appointed to Audit Committee, effective November 9, 2021.
- Lynch is SVP & CFO at Vectrus; brings 25+ years financial experience in tech, aerospace, and industrial.
- Board determined Lynch is independent and qualifies as audit committee financial expert.

## SEC filing metadata
- accession: 0000866291-21-000059
- form_type: 8-K
- ticker: ALGM
- cik: 0000866291
- company_name: ALLEGRO MICROSYSTEMS, INC.
- filed_at: 2021-11-10T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/866291/000086629121000059/0000866291-21-000059-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/866291/000086629121000059/algm-20211108.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000866291-21-000059
- JSON: https://secwatch.observer/filing/0000866291-21-000059.json
- Plain text: https://secwatch.observer/filing/0000866291-21-000059.txt

## Key facts
- Executive change
  Susan Lynch was elected as Director at ALLEGRO MICROSYSTEMS, INC..
  - Action: elected
  - Role: Director
  source text: On November 9, 2021, at the recommendation of the Nominating and Corporate Governance Committee of the Board, the Board elected Susan Lynch to the Board as a Class III Director, effective immediately, to serve until the Company’s 2023 annual meeting of stockholders and until her successor is duly elected and qualified.
  evidence_url: https://www.sec.gov/Archives/edgar/data/866291/000086629121000059/0000866291-21-000059-index.htm
- Executive change
  Christine King resigned as Director at ALLEGRO MICROSYSTEMS, INC..
  - Action: resigned
  - Role: Director
  source text: On November 8, 2021, Christine King notified the Board of Directors (the “Board”) of Allegro MicroSystems, Inc. (the “Company”) of her decision to resign from the Board and the Audit and Compensation Committees of the Board, effective upon the election of her successor.
  evidence_url: https://www.sec.gov/Archives/edgar/data/866291/000086629121000059/0000866291-21-000059-index.htm

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