ALLIANCEBERNSTEIN HOLDING L.P. 8-K

What Happened
AllianceBernstein L.P. (“AB”) and AllianceBernstein Holding L.P. filed an 8-K on March 12, 2026 to furnish a news release dated March 11, 2026 that announces AB’s preliminary assets under management (AUM) as of February 28, 2026. The news release is included as Exhibit 99.01 to the filing.

Key Details

• Filing date: March 12, 2026 (Form 8-K).
• News release date: March 11, 2026; subject: preliminary AUM as of February 28, 2026.
• The AUM release is attached to the 8-K as Exhibit 99.01.
• Report signed by Mark Manley, Corporate Secretary, on behalf of AllianceBernstein Holding L.P.

Why It Matters
AUM is a core metric for asset managers because it drives fee revenue and reflects client flows and market performance. This 8-K is a Regulation FD disclosure, meaning AB made the AUM update publicly and simultaneously to investors. Investors should read the attached news release (Exhibit 99.01) for the actual AUM figures and any discussion of flows or performance; the 8-K itself only furnishes that release and does not add other financial results or executive changes.