---
schema_version: "secwatch.filing_event.v1"
accession: "0000825313-21-000062"
form_type: "8-K"
ticker: "AB"
cik: "0000825313"
company_name: "ALLIANCEBERNSTEIN HOLDING L.P."
filed_at: "2021-10-22T23:59:59+00:00"
generated_at: "2026-06-28T18:57:52.218691+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# AllianceBernstein Chairman Ramon de Oliveira resigns; Joan Lamm-Tennant succeeds as Chair

## Summary
- Joan Lamm-Tennant, Equitable board member since Jan 2020, becomes Chair of Boards of Equitable and AllianceBernstein Corporation, effective Oct 22, 2021.
- Ramon de Oliveira resigned after communications inconsistent with company standards; departure unrelated to operations, financial integrity or controls.
- Ms. Lamm-Tennant also becomes Chair and member of Executive Committee of the AllianceBernstein Board.
- Mr. de Oliveira had served as Chair since March 2019 when Equitable became independent.

## SEC filing metadata
- accession: 0000825313-21-000062
- form_type: 8-K
- ticker: AB
- cik: 0000825313
- company_name: ALLIANCEBERNSTEIN HOLDING L.P.
- filed_at: 2021-10-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/825313/000082531321000062/0000825313-21-000062-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/825313/000082531321000062/ab-20211022.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000825313-21-000062
- JSON: https://secwatch.observer/filing/0000825313-21-000062.json
- Plain text: https://secwatch.observer/filing/0000825313-21-000062.txt

## Key facts
- Executive change
  Ramon de Oliveira resigned as Chair of the Boards of Directors at ALLIANCEBERNSTEIN HOLDING L.P..
  - Action: resigned
  - Role: Chair of the Boards of Directors
  source text: Mr. de Oliveira resigned after agreeing with the Company that he engaged in communications that were inconsistent with the Company’s standards.
  evidence_url: https://www.sec.gov/Archives/edgar/data/825313/000082531321000062/0000825313-21-000062-index.htm
- Executive change
  Joan Lamm-Tennant was appointed as Chair of the Boards of Directors at ALLIANCEBERNSTEIN HOLDING L.P..
  - Action: succeeds
  - Role: Chair of the Boards of Directors
  source text: Effective October 22, 2021, Joan Lamm-Tennant succeeds Ramon de Oliveira, who served as Chair of the Boards of Directors of Equitable Holdings, Inc. (“Equitable”) and AllianceBernstein Corporation, general partner of AllianceBernstein L.P. and AllianceBernstein Holding L.P. (collectively, the “Company”), since March 2019 when Equitable became an independent company, during which time the Company delivered significant shareholder and unitholder value in a challenging environment.
  evidence_url: https://www.sec.gov/Archives/edgar/data/825313/000082531321000062/0000825313-21-000062-index.htm

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