X0306 4 2015-08-11 0 0001328015 Imprivata Inc IMPR 0001013713 MAEDER PAUL A C/O HIGHLAND CAPITAL PARTNERS, ONE BROADWAY, 16TH FLOOR CAMBRIDGE MA 02142 1 0 1 0 Common Stock 2015-08-11 4 S 0 1043763 14.10 D 1751129 I See Footnote Common Stock 2015-08-11 4 S 0 572045 14.10 D 959723 I See Footnote Common Stock 2015-08-11 4 S 0 51692 14.10 D 86724 I See Footnote The securities are held by Highland Capital Partners VI Limited Partnership ("HCP VI"). The Reporting Person is an authorized manager of Highland Management Partners VI, Inc. ("HMP VI INC"), which is the general partner of Highland Management Partnership VI Limited Partnership ("HMP VI LP"), which is the general partner of HCP VI. Each of the Reporting Person, HMP VI LP and HMP VI INC disclaims beneficial ownership of all shares held by HCP VI except to the extent, if any, of such entity's pecuniary interest therein. The securities are held by Highland Capital Partners VI-B Limited Partnership ("HCP VI-B"). The Reporting Person is an authorized manager of HMP VI INC, which is the general partner of HMP VI LP, which is the general partner of HCP VI-B. Each of the Reporting Person, HMP VI LP and HMP VI INC disclaims beneficial ownership of all shares held by HCP VI-B except to the extent, if any, of such entity's pecuniary interest therein. The securities are held by Highland Entrepreneurs' Fund VI Limited Partnership ("HEF VI"). The Reporting Person is an authorized manager of HMP VI INC, which is the general partner of HMP VI LP, which is the general partner of HEF VI. Each of the Reporting Person, HMP VI LP and HMP VI INC disclaims beneficial ownership of all shares held by HEF VI except to the extent, if any, of such entity's pecuniary interest therein. /s/ Paul A. Maeder 2015-08-13