AllianceBernstein L.P. Acquires 5.0% Stake in Calix Inc (CALX)

AllianceBernstein L.P. filed a Schedule 13G on May 18, 2026, disclosing a new 5.0% ownership stake in Calix Inc (CALX). As of the event date of March 31, 2026, the investment firm reported beneficial ownership of 3,251,128 shares of common stock. The filing indicates that AllianceBernstein holds sole voting power over 2,856,340 shares and sole dispositive power over 3,248,692 shares. The shares were acquired solely for investment purposes on behalf of client discretionary investment advisory accounts in the ordinary course of business. AllianceBernstein L.P. is a majority-owned subsidiary of Equitable Holdings, Inc. (EQH) but operates under independent management and reports its beneficial ownership separately. This filing marks a significant increase from a previous position of zero, crossing the 5% regulatory threshold that requires public disclosure. The firm certified that the acquisition was not intended to influence or change the control of the issuer.