X0303 4 2011-06-03 0 0000709804 ADPT Corp ADPT 0001522066 SPH Group Holdings LLC C/O STEEL PARTNERS HOLDINGS L.P. 590 MADISON AVENUE, 32ND FLOOR NEW YORK NY 10022 0 0 1 0 0001452857 STEEL PARTNERS HOLDINGS L.P. 590 MADISON AVENUE, 32ND FLOOR NEW YORK NY 10022 0 0 1 0 0001422282 Steel Partners LLC C/O STEEL PARTNERS HOLDINGS L.P. 590 MADISON AVENUE, 32ND FLOOR NEW YORK NY 10022 0 0 1 0 0001005784 LICHTENSTEIN WARREN G C/O STEEL PARTNERS HOLDINGS L.P. 590 MADISON AVENUE, 32ND FLOOR NEW YORK NY 10022 1 1 1 0 President of Subsidiary 0001522067 SPH Group LLC C/O STEEL PARTNERS HOLDINGS L.P. 590 MADISON AVENUE, 32ND FLOOR NEW YORK NY 10022 0 0 1 0 Common Stock, par value $0.001 2011-06-03 4 P 0 6000 2.9275 A 37238972 D Common Stock, par value $0.001 2011-06-06 4 P 0 468100 2.9524 A 37707072 D This Form 4 is filed jointly by Steel Partners Holdings L.P. ("Steel Holdings"), SPH Group LLC ("SPHG"), SPH Group Holdings LLC ("SPHG Holdings"), Steel Partners LLC ("Partners LLC") and Warren G. Lichtenstein. Steel Holdings, SPHG, Partners LLC and Mr. Lichtenstein may be deemed to be 10% owners of the Issuer and SPHG Holdings is a 10% owner of the Issuer. Shares owned directly by SPHG Holdings, and owned indirectly by SPHG by virtue of it being the sole member of SPHG Holdings, by Steel Holdings by virtue of its ownership of 99% of the membership interests of SPHG, by Partners LLC by virtue of it being the manager of Steel Holdings and by Mr. Lichtenstein by virtue of his position as the manager of Partners LLC. SPHG, Steel Holdings, Partners LLC and Mr. Lichtenstein disclaim beneficial ownership of the shares owned by SPHG Holdings except to the extent of their pecuniary interest therein. By: Steel Partners Holdings L.P., By: Steel Partners Holdings GP Inc., General Partner, By: /s/ Sanford Antignas, Chief Operating Officer 2011-06-07 By: SPH Group Holdings LLC, By: Steel Partners Holdings GP Inc., Manager, By: /s/ Sanford Antignas, Chief Operating Officer 2011-06-07 By: Steel Partners LLC, By: /s/ Sanford Antignas, Chief Operating Officer 2011-06-07 By: /s/ Sanford Antignas, as Attorney In Fact for Warren G. Lichtenstein 2011-06-07 By: SPH Group LLC, By: Steel Partners Holdings GP Inc., Managing Member, By: /s/ Sanford Antignas, Chief Operating Officer 2011-06-07