---
schema_version: "secwatch.filing_event.v1"
accession: "0001408198-23-000047"
form_type: "8-K"
ticker: "MSCI"
cik: "0001408198"
company_name: "MSCI Inc."
filed_at: "2023-08-24T23:59:59+00:00"
generated_at: "2026-06-11T04:04:17.814188+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# MSCI controller Jennifer H. Mak resigns; CFO Wiechmann assumes interim principal accounting officer role

## Summary
- Jennifer H. Mak notified MSCI on August 18, 2023 of her resignation as Global Controller and principal accounting officer.
- Resignation is not due to any disagreement with the Company regarding financial statements, internal controls, or policies.
- Mak will remain with MSCI through September 7, 2023 to facilitate transition.
- CFO Andrew C. Wiechmann will serve as interim principal accounting officer effective August 24, 2023.
- No new compensatory arrangements for Mr. Wiechmann in connection with the interim role.

## SEC filing metadata
- accession: 0001408198-23-000047
- form_type: 8-K
- ticker: MSCI
- cik: 0001408198
- company_name: MSCI Inc.
- filed_at: 2023-08-24T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1408198/000140819823000047/0001408198-23-000047-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1408198/000140819823000047/msci-20230818.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001408198-23-000047
- JSON: https://secwatch.observer/filing/0001408198-23-000047.json
- Plain text: https://secwatch.observer/filing/0001408198-23-000047.txt

## Key facts
- Executive change
  Jennifer H. Mak resigned as Global Controller, Head of Finance Operations and principal accounting officer at MSCI Inc..
  - Action: resigned
  - Role: Global Controller, Head of Finance Operations and principal accounting officer
  source text: On August 18, 2023, Jennifer H. Mak informed MSCI Inc. (“MSCI” or the “Company”) of her intention to resign as Global Controller, Head of Finance Operations and principal accounting officer of the Company, to pursue another opportunity.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1408198/000140819823000047/0001408198-23-000047-index.htm
- Executive change
  Andrew C. Wiechmann was appointed as interim principal accounting officer at MSCI Inc..
  - Action: appointed
  - Role: interim principal accounting officer
  source text: In connection with Ms. Mak’s resignation, Andrew C. Wiechmann, the Company’s Chief Financial Officer, will assume the responsibilities of principal accounting officer on an interim basis, effective August 24, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1408198/000140819823000047/0001408198-23-000047-index.htm

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