{"filing":{"accession_number":"0001109448-26-000281","cik":"0001109448","ticker":null,"company_name":"ALLIANCEBERNSTEIN L.P.","form":"8-K","filing_date":"2026-09-25","report_date":"2026-09-25","primary_document":"ab-20260925.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1109448/000110944826000281/ab-20260925.htm"},"events":[{"id":35028,"run_id":32258,"accession_number":"0001109448-26-000281","anchor_item_number":"5.02","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.85,"summary":"Onur Erzan was appointed President and Chief Executive Officer of AllianceBernstein, effective April 1, 2027, succeeding Seth Bernstein who retired as CEO effective March 31, 2027. The appointment represents a significant leadership transition at the major global investment management firm, with Erzan assuming the role after serving as President.","company_name":"ALLIANCEBERNSTEIN L.P.","ticker":null,"filing_date":"2026-09-25","form":"8-K","submitted_at":null,"items":[{"id":38947,"accession_number":"0001109448-26-000281","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.65,"reasoning":"Seth Bernstein's retirement as Chief Executive Officer effective March 31, 2027, is the primary disclosed action. While the filing also announces Onur Erzan's appointment as successor CEO, the central narrative focuses on Bernstein's departure after nearly a decade of leadership during which he oversaw significant transformation and growth (AUM nearly doubled to $919 billion). The retirement agreement detailing severance and equity awards further emphasizes the departure event. Although both a departure and appointment occur, the prose centers on the CEO transition as a leadership change, making the departure the salient event.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-25T12:08:44.361540+00:00","company_name":"","ticker":null,"filing_date":""},{"id":38948,"accession_number":"0001109448-26-000281","item_number":"7.01","item_title":"Regulation FD Disclosure.","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The filing announces the appointment of Onur Erzan as President and Chief Executive Officer of AllianceBernstein, effective April 1, 2027. While the disclosure also mentions Seth Bernstein's retirement as CEO effective March 31, 2027, the principal action disclosed is Erzan's appointment to the CEO role. The press release emphasizes Erzan's qualifications, his prior role as President, and his strategic contributions to the firm, making the appointment the salient event. This is material to investors as it represents a significant leadership transition at a major global investment management firm.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-25T12:08:44.361540+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":38947,"accession_number":"0001109448-26-000281","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.65,"reasoning":"Seth Bernstein's retirement as Chief Executive Officer effective March 31, 2027, is the primary disclosed action. While the filing also announces Onur Erzan's appointment as successor CEO, the central narrative focuses on Bernstein's departure after nearly a decade of leadership during which he oversaw significant transformation and growth (AUM nearly doubled to $919 billion). The retirement agreement detailing severance and equity awards further emphasizes the departure event. Although both a departure and appointment occur, the prose centers on the CEO transition as a leadership change, making the departure the salient event.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-25T12:08:44.361540+00:00","company_name":"ALLIANCEBERNSTEIN L.P.","ticker":null,"filing_date":"2026-09-25"},{"id":38948,"accession_number":"0001109448-26-000281","item_number":"7.01","item_title":"Regulation FD Disclosure.","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The filing announces the appointment of Onur Erzan as President and Chief Executive Officer of AllianceBernstein, effective April 1, 2027. While the disclosure also mentions Seth Bernstein's retirement as CEO effective March 31, 2027, the principal action disclosed is Erzan's appointment to the CEO role. The press release emphasizes Erzan's qualifications, his prior role as President, and his strategic contributions to the firm, making the appointment the salient event. This is material to investors as it represents a significant leadership transition at a major global investment management firm.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-25T12:08:44.361540+00:00","company_name":"ALLIANCEBERNSTEIN L.P.","ticker":null,"filing_date":"2026-09-25"}]}