---
schema_version: "secwatch.filing_event.v1"
accession: "0001441816-23-000105"
form_type: "8-K"
ticker: "MDB"
cik: "0001441816"
company_name: "MongoDB, Inc."
filed_at: "2023-06-28T23:59:59+00:00"
generated_at: "2026-06-13T15:29:14.237009+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# MongoDB CTO Mark Porter to step down July 3; director McMahon not standing for reelection in 2024

## Summary
- CTO Mark Porter departing effective July 3, 2023; severance per his amended offer letter.
- Director John McMahon not standing for reelection at 2024 annual meeting, resigning effective that date.
- McMahon's decision not based on any disagreement with company operations or policies.

## SEC filing metadata
- accession: 0001441816-23-000105
- form_type: 8-K
- ticker: MDB
- cik: 0001441816
- company_name: MongoDB, Inc.
- filed_at: 2023-06-28T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1441816/000144181623000105/0001441816-23-000105-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1441816/000144181623000105/mdb-20230627.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001441816-23-000105
- JSON: https://secwatch.observer/filing/0001441816-23-000105.json
- Plain text: https://secwatch.observer/filing/0001441816-23-000105.txt

## Key facts
- Executive change
  John D. McMahon departed as Director at MongoDB, Inc..
  - Action: not stand for reelection
  - Role: Director
  source text: On June 27, 2023, John D. McMahon, a Class I director of the Company's Board of Directors (the "Board") and a member of the Compensation Committee, notified the Company of his decision to not stand for reelection at the next Annual Meeting of Stockholders to be held in 2024 and resign effective on the date of the 2024 Annual Meeting of Stockholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1441816/000144181623000105/0001441816-23-000105-index.htm
- Executive change
  Mark Porter departed as Chief Technology Officer at MongoDB, Inc..
  - Action: step down
  - Role: Chief Technology Officer
  source text: On June 27, 2023 MongoDB, Inc. (the “Company”) and Mark Porter, the Company's Chief Technology Officer, determined that Mr. Porter will step down from the Company, effective July 3, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1441816/000144181623000105/0001441816-23-000105-index.htm

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