X0306 4 2018-12-31 0001094831 BGC Partners, Inc. BGCP 0001450108 Windeatt Sean A C/O BGC PARTNERS, INC. 499 PARK AVENUE NEW YORK NY 10022 1 Chief Operating Officer BGC Holdings Exchangeable Limited Partnership Interests 2018-12-31 4 A 0 139265 0 A Class A Common Stock, par value $0.01 per share 139265 139265 D On December 31, 2018, BGC Partners, Inc. (the "Company") granted the reporting person 139,265 exchange rights with respect to 139,265 non-exchangeable limited partnership interests of BGC Holdings, L.P. that were previously granted to the reporting person. The resulting 139,265 exchangeable limited partnership interests of BGC Holdings, L.P. are immediately exchangeable by the reporting person for an aggregate of 139,265 shares of Class A Common Stock, par value $0.01 per share, of the Company. This grant was partial compensation for services provided by the reporting person to the Company during 2018. The grant was approved by the Compensation Committee of the Board of Directors of the Company and is exempt pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended. /s/ Sean A. Windeatt 2019-01-03