<PAGE>
Filed Pursuant to Rule 424(b)(3)
Registration No. 333-44441
PROSPECTUS SUPPLEMENT
Dated January 25, 1999
to the Prospectus dated January 29, 1998
MACK-CALI REALTY CORPORATION
Mack-Cali Realty Corporation (the "Company") has prepared this
Prospectus Supplement to update certain information included in the Company's
Prospectus dated January 29, 1998 relating to 2,316,201 shares of common
stock, par value $0.01 per share (the "Common Stock") of the Company.
The following shares of Common Stock included in the Prospectus are
subject to pledge and security agreements in favor of Prudential Securities
Incorporated ("Prudential"): 516,322 shares of Common Stock held by Robert F.
Weinberg; 516,322 shares of Common Stock held by Martin S. Berger; 99,400
shares of Common Stock held by Brad W. Berger; 102,280 shares of Common Stock
held by Timothy M. Jones; 5,210 shares of Common Stock held by MSB
Management, Inc.; and 5,210 shares of Common Stock held by RFW Management,
Inc. Following a transfer of such shares to Prudential pursuant to such
pledge and security agreements, such shares may be sold by Prudential pursuant
to the Prospectus.
