IRVINE, Calif.— Allergan, Inc. (NYSE: AGN) provided an update regarding the validity of the written requests from Allergan stockholders that were delivered by Pershing Square Capital Management, L.P. to request a Special Meeting of Stockholders.

According to a review conducted by Allergan and its independent inspector, Pershing Square has delivered requests that comply as to form with Allergan's bylaws from stockholders owning more than 25 percent of Allergan's shares, which does not include the additional requests from stockholders owning 2.8 percent of Allergan's shares that were delivered on Sept. 3, 2014.

Allergan is scheduled to hold a Special Meeting on Dec. 18, 2014. Stockholders who have requested the Special Meeting must further update and supplement the information previously provided to Allergan to show ongoing compliance as of the record date and as of 10 business days prior to the Special Meeting. The company will announce additional details regarding the Special Meeting in due course, Allergan said.