---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-22-006516"
form_type: "8-K"
ticker: "ACHR"
cik: "0001824502"
company_name: "Archer Aviation Inc."
filed_at: "2022-01-21T23:59:59+00:00"
generated_at: "2026-06-27T16:36:10.853454+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Archer Aviation CFO Ben Lu resigns Jan 21; Mark Mesler appointed CFO effective Feb 7; subleases new HQ

## Summary
- CFO Ben Lu resigns Jan 21; receives accelerated vesting of 100k RSUs, $250k severance, and $105,769 prorated bonus.
- Mark Mesler appointed CFO effective Feb 7; prior CFO of Volansi, VP Finance at Bloom Energy; base salary $500k, target bonus $250k, $4M RSU grant.
- Archer subleases ~96,000 sq ft in San Jose as new HQ; aggregate rent ~$12M through Oct 2026; subject to landlord consent.

## SEC filing metadata
- accession: 0001104659-22-006516
- form_type: 8-K
- ticker: ACHR
- cik: 0001824502
- company_name: Archer Aviation Inc.
- filed_at: 2022-01-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1824502/000110465922006516/0001104659-22-006516-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1824502/000110465922006516/tm224134d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-22-006516
- JSON: https://secwatch.observer/filing/0001104659-22-006516.json
- Plain text: https://secwatch.observer/filing/0001104659-22-006516.txt

## Key facts
- Executive change
  Mark Mesler was appointed as Chief Financial Officer at Archer Aviation Inc..
  - Action: appointed
  - Role: Chief Financial Officer
  source text: the Company’s board of directors appointed Mark Mesler, age 53, to become the Company’s Chief Financial Officer ("CFO") effective February 7, 2022
  evidence_url: https://www.sec.gov/Archives/edgar/data/1824502/000110465922006516/0001104659-22-006516-index.htm
- Executive change
  Ben Lu resigned as Chief Financial Officer at Archer Aviation Inc..
  - Action: resigned
  - Role: Chief Financial Officer
  source text: Ben Lu and Archer have reached an agreement regarding Mr. Lu’s resignation from his position as the Company’s Chief Financial Officer effective on January 21, 2022
  evidence_url: https://www.sec.gov/Archives/edgar/data/1824502/000110465922006516/0001104659-22-006516-index.htm

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