X0508 4 2023-12-08 1 0001054721 BSQUARE CORP /WA BSQR 0001104815 Karp Richard Alan C/O BSQUARE CORPORATION PO BOX 59478 RENTON WA 98058 0 0 0 1 Former Director 0 Common Stock 2023-12-08 4 D 0 8947 D 11538 D Common Stock 2023-12-08 4 D 0 11538 D 0 D Common Stock 2023-12-08 4 D 0 562199 D 0 I By Richard A. Karp Trust Common Stock 2023-12-08 4 D 0 220816 D 0 I By Richard A. Karp Trust for John L. Karp Common Stock 2023-12-08 4 D 0 230000 D 0 I By Richard A. Karp Trust for Michael D. Karp Common Stock 2023-12-08 4 D 0 40000 D 0 I By Richard A. Karp Grandchildren's Trust Common Stock 2023-12-08 4 D 0 250000 D 0 I By Richard A. Karp Charitable Foundation In connection with that certain Agreement and Plan of Merger by and among Bsquare Corporation (the "Company"), Kontron America, Incorporated, and Kontron MergerSub, Inc., dated as of October 11, 2023 (the "Merger Agreement") and the related tender offer, the Reporting Person became entitled to receive, in respect of each share of the Company's Common Stock, an amount in cash equal to $1.90 (the "Offer Price"). The Merger Agreement provides that, subject to any required withholding taxes, at the Effective Time (as defined in the Merger Agreement), each time-based restricted stock unit with respect to Shares (each a "Company RSU") that is then outstanding and vested will be cancelled and the holder of such Company RSU will be entitled to receive a cash payment equal to the product of (i) the Offer Price and (ii) the number of Shares subject to such Company RSU. The Merger Agreement provides that at the Effective Time, each then outstanding and unvested Company RSU shall be cancelled without payment of consideration, and all rights with respect to such unvested Company RSU shall terminate as of the Effective Time. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. /s/ Richard Alan Karp 2023-12-08