---
schema_version: "secwatch.filing_event.v1"
accession: "0001441683-24-000091"
form_type: "8-K"
ticker: "APPN"
cik: "0001441683"
company_name: "APPIAN CORP"
filed_at: "2024-10-11T23:59:59+00:00"
generated_at: "2026-05-30T15:19:26.406403+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Appian CFO Matheos departing Nov 8; Lynch named interim CFO; Dorsey named CRO

## Summary
- CFO Mark Matheos will leave Nov 8, 2024 to take another CFO role; no disagreement with company.
- Board member & former CFO Mark Lynch to serve as Interim CFO from Nov 4; $1M base plus $125K/mo bonus through Apr 2025.
- Mark Dorsey appointed CRO effective Oct 21; previously SVP Sales Americas at Alteryx, prior Oracle & IBM.
- Appian reaffirms Q3 and full-year 2024 guidance provided Aug 1; no change to outlook.

## SEC filing metadata
- accession: 0001441683-24-000091
- form_type: 8-K
- ticker: APPN
- cik: 0001441683
- company_name: APPIAN CORP
- filed_at: 2024-10-11T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1441683/000144168324000091/0001441683-24-000091-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1441683/000144168324000091/appn-20241011.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001441683-24-000091
- JSON: https://secwatch.observer/filing/0001441683-24-000091.json
- Plain text: https://secwatch.observer/filing/0001441683-24-000091.txt

## Key facts
- Executive change
  Mark Lynch was appointed as Interim Chief Financial Officer at APPIAN CORP.
  - Action: will serve as Interim Chief Financial Officer
  - Role: Interim Chief Financial Officer
  source text: Mark Lynch, a member of the Company’s Board of Directors, will serve as Interim Chief Financial Officer ("Interim CFO") effective as of November 4, 2024
  evidence_url: https://www.sec.gov/Archives/edgar/data/1441683/000144168324000091/0001441683-24-000091-index.htm
- Executive change
  Mark Matheos departed as Chief Financial Officer at APPIAN CORP.
  - Action: notified that he will be leaving
  - Role: Chief Financial Officer
  source text: Mark Matheos, Chief Financial Officer of Appian Corporation (the “Company”) notified the Company that he will be leaving the Company effective November 8, 2024, to pursue an opportunity as a CFO at another company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1441683/000144168324000091/0001441683-24-000091-index.htm

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