---
schema_version: "secwatch.filing_event.v1"
accession: "0001441683-25-000028"
form_type: "8-K"
ticker: "APPN"
cik: "0001441683"
company_name: "APPIAN CORP"
filed_at: "2025-04-21T23:59:59+00:00"
generated_at: "2026-05-23T10:07:10.674001+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Appian appoints Serge Tanjga as CFO, effective May 27, 2025

## Summary
- Serge Tanjga, former MongoDB interim CFO and SVP Finance, named Appian CFO effective May 27, 2025.
- He succeeds Mark Lynch, who served as interim CFO since November 2024.
- Compensation: $750k base salary, $450k target bonus, $5M sign-on RSUs (4-year vest).
- Recurring annual grants of $1.5M each in RSUs and performance stock units, both 4-year vest.
- Tanjga holds a B.A. and MBA from Harvard; over 20 years of financial experience.

## SEC filing metadata
- accession: 0001441683-25-000028
- form_type: 8-K
- ticker: APPN
- cik: 0001441683
- company_name: APPIAN CORP
- filed_at: 2025-04-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1441683/000144168325000028/0001441683-25-000028-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1441683/000144168325000028/appn-20250421.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001441683-25-000028
- JSON: https://secwatch.observer/filing/0001441683-25-000028.json
- Plain text: https://secwatch.observer/filing/0001441683-25-000028.txt

## Key facts
- Executive change
  Srdjan "Serge" Tanjga was appointed as Chief Financial Officer at APPIAN CORP.
  - Action: appointed
  - Role: Chief Financial Officer
  source text: Appointment of Chief Financial Officer On April 21, 2025, Appian Corporation (the “Company”) issued a press release announcing that Srdjan “Serge” Tanjga has been appointed Chief Financial Officer of the Company, effective May 27, 2025 (the “Effective Date”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1441683/000144168325000028/0001441683-25-000028-index.htm
- Executive change
  Mark Lynch departed as Interim Chief Financial Officer at APPIAN CORP.
  - Action: succeeded
  - Role: Interim Chief Financial Officer
  source text: Mr. Tanjga succeeds Mark Lynch, who has served as the Company’s Interim Chief Financial Officer since November 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1441683/000144168325000028/0001441683-25-000028-index.htm

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