X0303 4 2011-03-31 0 0001123541 PENSON WORLDWIDE INC PNSN 0001356670 Johnson David C/O PENSON WORLDWIDE, INC. 1700 PACIFIC AVENUE, SUITE 1400 DALLAS TX 75201 1 0 0 0 Common Stock 2011-03-31 4 M 0 771 A 29332 D Restricted Stock Unit 2011-03-31 4 M 0 771 0.00 D Common Stock 0 0 D Each restricted stock unit represents a contingent right to receive one share of Penson Worldwide common stock. On March 31, 2011, 771 of the reporting person's restricted stock units vested. The reporting person is responsible for any tax liability associated with the vested shares. Includes 5,095 Restricted Stock Units that vest evenly over 4 quarters from June 30, 2011. Each restricted stock unit represents a contingent right to receive one share of Penson Worldwide common stock. The restricted stock units vested on March 31, 2011. /s/ Owen M. Scheurich, by power of attorney 2011-04-01