---
schema_version: "secwatch.filing_event.v1"
accession: "0000825313-22-000022"
form_type: "8-K"
ticker: "AB"
cik: "0000825313"
company_name: "ALLIANCEBERNSTEIN HOLDING L.P."
filed_at: "2022-03-23T23:59:59+00:00"
generated_at: "2026-06-26T20:20:43.590157+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# CFO Ali Dibadj resigns; William Siemers appointed Interim CFO

## Summary
- Ali Dibadj resigned as CFO and Head of Strategy effective March 22, 2022 to become CEO of another publicly traded company.
- William R. Siemers, age 62, appointed Interim CFO, continuing as Controller and Chief Accounting Officer.
- Siemers has been with AB since 2004, serving as Director of Financial Reporting before becoming Controller in 2018.

## SEC filing metadata
- accession: 0000825313-22-000022
- form_type: 8-K
- ticker: AB
- cik: 0000825313
- company_name: ALLIANCEBERNSTEIN HOLDING L.P.
- filed_at: 2022-03-23T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/825313/000082531322000022/0000825313-22-000022-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/825313/000082531322000022/ab-20220323.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000825313-22-000022
- JSON: https://secwatch.observer/filing/0000825313-22-000022.json
- Plain text: https://secwatch.observer/filing/0000825313-22-000022.txt

## Key facts
- Executive change
  William R. Siemers was appointed as Interim Chief Financial Officer at ALLIANCEBERNSTEIN HOLDING L.P..
  - Action: appointed
  - Role: Interim Chief Financial Officer
  source text: AB Holding appointed William R. Siemers, AB Holding’s Controller and Chief Accounting Officer, as Interim Chief Financial Officer, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/825313/000082531322000022/0000825313-22-000022-index.htm
- Executive change
  Ali Dibadj resigned as Chief Financial Officer and Head of Strategy at ALLIANCEBERNSTEIN HOLDING L.P..
  - Action: resigned
  - Role: Chief Financial Officer and Head of Strategy
  source text: On March 22, 2022, Ali Dibadj notified AllianceBernstein Holding L.P. (“AB Holding”) of his resignation from his position as Chief Financial Officer and Head of Strategy, effective March 22, 2022, to become the chief executive officer of another publicly traded company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/825313/000082531322000022/0000825313-22-000022-index.htm

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