X0306 4 2019-03-18 0001094831 BGC Partners, Inc. BGCP 0001583060 Bell Linda A C/O BGC PARTNERS, INC. 499 PARK AVENUE NEW YORK NY 10022 1 Class A common stock, par value $0.01 per share 2019-03-18 4 S 0 17887 5.7040 D 6098 D This transaction was executed in multiple trades at prices ranging from $5.670 to $5.715. The price reported above reflects the weighted-average sale price. The reporting person hereby undertakes to provide to the Securities and Exchange Commission staff, BGC Partners, Inc. ("BGC Partners") or any security holder of BGC Partners, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1). The 6,098 shares of Class A common stock, par value $0.01 per share, of BGC Partners ("Class A common stock") are represented by 6,098 restricted stock units ("RSUs") granted under the BGC Partners, Inc. Seventh Amended and Restated Long Term Incentive Plan. Each RSU represents a contingent right to receive one share of Class A common stock. Of the 6,098 RSUs, 2,068 RSUs will vest on June 6, 2019, 2,015 RSUs will vest on June 20, 2019 and 2,015 RSUs will vest on June 20, 2020, in each case provided that the reporting person continues to serve as a member of the Board of Directors on such date. /s/ Linda A. Bell 2019-03-18