X0202 4 2006-08-28 0 0001054721 BSQUARE CORP /WA BSQR 0001235812 TA ASSOCIATES VIII LLC 125 HIGH STREET SUITE 2500 BOSTON MA 02110 0 0 0 1 See General Remarks Common Stock 2006-08-28 4 S 0 39457 2.0103 D 794674 I See Footnote 1 Common Stock 2006-08-29 4 S 0 6726 2.01 D 787948 I See Footnote 1 Common Stock 2006-08-30 4 S 0 7198 2.01 D 780750 I See Footnote 1 The reporting person may be deemed to have an indirect pecuniary interest as the General Partner of TA/Advent VIII L.P. The reporting person disclaims benefical ownership of such shares because the reporting person's indirect pecuniary interest is subject to indeterminable future events. Member of a group which owns more than 10% in the aggregate. TA Associates VIII LLC 2006-08-30 By: TA Associates, Inc., it Manager 2006-08-30 By: Thomas P. Alber, Chief Financial Officer 2006-08-30