---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-22-123467"
form_type: "8-K"
ticker: "MXCT"
cik: "0001287098"
company_name: "MAXCYTE, INC."
filed_at: "2022-12-01T23:59:59+00:00"
generated_at: "2026-06-21T10:39:28.453715+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# MaxCyte appoints Patrick Balthrop as non-executive director; grants 100,000 stock options

## Summary
- Patrick Balthrop appointed as Class II director and member of Nominating and Corporate Governance Committee effective Nov 30, 2022.
- Granted 100,000 nonqualified stock options at $5.99/share, vesting over three years with 1/3 after 12 months.
- Balthrop has 35+ years in life sciences; former CEO of Luminex, President of Fisher Healthcare, Abbott Laboratories veteran.
- No related party transactions or family relationships with existing directors or officers.

## SEC filing metadata
- accession: 0001104659-22-123467
- form_type: 8-K
- ticker: MXCT
- cik: 0001287098
- company_name: MAXCYTE, INC.
- filed_at: 2022-12-01T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1287098/000110465922123467/0001104659-22-123467-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1287098/000110465922123467/tm2231548d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-22-123467
- JSON: https://secwatch.observer/filing/0001104659-22-123467.json
- Plain text: https://secwatch.observer/filing/0001104659-22-123467.txt

## Key facts
- Executive change
  Patrick J. Balthrop, Sr. was appointed as Class II director at MAXCYTE, INC..
  - Action: appointed
  - Role: Class II director
  source text: On November 30, 2022, upon the recommendation of its Nominating and Corporate Governance Committee (the “ Nominating Committee ”), the Board of Directors (the “ Board ”) of MaxCyte, Inc. (the “ Company ”) appointed Patrick J. Balthrop, Sr. to serve as a Class II director.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1287098/000110465922123467/0001104659-22-123467-index.htm

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