X0306 4 2013-07-01 0 0001401708 NanoString Technologies Inc NSTG 0001412617 Draper Fisher Jurvetson Fund VII, L.P. C/O DRAPER FISHER JURVETSON 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 0001565284 Draper Associates Riskmasters Fund II, LLC C/O DRAPER FISHER JURVETSON 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 0001564069 Draper Associates Riskmasters Fund, LLC C/O DRAPER FISHER JURVETSON 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 0001106255 DRAPER ASSOCIATES L P C/O DRAPER FISHER JURVETSON 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 0001412619 Draper Fisher Jurvetson Partners VII, LLC C/O DRAPER FISHER JURVETSON 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 Common Stock 2013-07-01 4 C 0 364583 A 364583 I See footnotes Common Stock 2013-07-01 4 C 0 357145 A 721728 I See footnotes Common Stock 2013-07-01 4 C 0 514916 A 1236644 I See footnotes Common Stock 2013-07-01 4 C 0 446504 A 1683149 I See footnotes Common Stock 2013-07-01 4 C 0 81566 A 1764714 I See footnotes Common Stock 2013-07-01 4 A 0 10000 10.00 A 1774714 I See footnotes Series A Preferred Stock 2013-07-01 4 C 0 364583 D Common Stock 364583 0 I See footnotes Series B Preferred Stock 2013-07-01 4 C 0 357145 D Common Stock 357145 0 I See footnotes Series C Preferred Stock 2013-07-01 4 C 0 514916 D Common Stock 514916 0 I See footnotes Series D Preferred Stock 2013-07-01 4 C 0 446504 D Common Stock 446504 0 I See footnotes Series E Preferred Stock 2013-07-01 4 C 0 81566 D Common Stock 81566 0 I See footnotes Series D Preferred Warrant (Right to Buy) 8.45 2013-07-01 4 C 0 89296 8.45 D 2018-11-01 Common Stock 89296 0 I See footnotes Common Stock Warrant (Right to Buy) 8.45 2013-07-01 4 C 0 89296 8.45 A 2018-11-01 Common Stock 89296 89296 I See footnotes Reflects the automatic conversion of each share of Series A Preferred Stock into 1.4030303030303 shares of Common Stock to occur upon the closing of the Issuer's initial public offering. Each share had no expiration date. 9,480 of these shares are owned by Draper Associates, L.P., 349,999 of these shares are owned by Draper Fisher Jurvetson Fund VII, L.P., and 5,104 of these shares are owned by Draper Fisher Jurvetson Partners VII, LLC. Timothy C. Draper, John H.N. Fisher and Steven T. Jurvetson are Managing Directors of the general partner entities of Draper Fisher Jurvetson Fund VII, L.P. ("Fund VII") that directly hold shares and as such, they may be deemed to have voting and investment power with respect to such shares. Draper Fisher Jurvetson Partners VII, LLC ("Partners VII") invests lockstep alongside Fund VII. The Managing Partners of Partners VII are Timothy C. Draper, John H.N. Fisher and Steven T. Jurvetson. Draper Associates, L.P. ("DALP") invests lockstep alongside Fund VII. The General Partners of DALP is Draper Associates, Inc. which is controlled by its President and majority shareholder, Timothy C. Draper. Draper Associates Riskmasters Fund, LLC ("DARF") and Draper Associates Riskmasters Fund II, LLC ("DARF II") invest lockstep alongside Fund VII, instead and in place of DALP beginning June 2010. The Managing Member of DARF and DARF II is Timothy C. Draper. These individuals disclaim beneficial ownership with respect to such shares except to the extent of their pecuniary interest therein. Reflects the automatic conversion of each share of Series B Preferred Stock into 1.55942857142857 shares of Common Stock to occur upon the closing of the Issuer's initial public offering. Each share had no expiration date. 9,286 of these shares are owned by Draper Associates, L.P., 342,858 shares are owned by Draper Fisher Jurvetson Fund VII, L.P., and 5,001 of these shares are owned by Draper Fisher Jurvetson Partners VII, LLC. The Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock converted into Common Stock on a one for one basis immediately prior to the completion of the Issuer's initial public offering of common stock and had no expiration date. 13,388 of these shares are owned by Draper Associates, L.P., 494,319 of these shares are owned by Draper Fisher Jurvetson Fund VII, L.P., and 7,209 of these shares are owned by Draper Fisher Jurvetson Partners VII, LLC. 9,621 of these shares are owned by Draper Associates Riskmasters Fund II, LLC, 1,989 of these shares are owned by Draper Associates Riskmasters Fund, LLC, 428,643 of the shares are owned by Draper Fisher Jurvetson Fund II, L.P., and 6,251 of these shares are owned by Draper Fisher Jurvetson Partners VII, LLC. 2,121 of these shares are owned by Draper Associates Riskmasters Fund II, LLC, 78,303 of these shares are owned by Draper Fisher Jurvetson Fund VII, L.P., and 1,142 of these shares are owned by Draper Fisher Jurvetson Partners VII, LLC. 9,600 of these shares are owned by Draper Fisher Jurvetson Fund VII, L.P., 140 of these shares are owned by Draper Fisher Jurvetson Partners VII, LLC, and 260 of these shares are owned by Draper Associates Riskmasters Fund II, LLC. The Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock converted into Common Stock on a one for one basis immediately prior to the completion of the Issuer's initial public offering of common stock. 396 of these shares are owned by Draper Associates Riskmasters Fund, LLC, 1,923 of these shares are owned by Draper Associates Riskmasters Fund II, LLC, 85,728 of these shares are owned by Draper Fisher Jurvetson Fund VII, L.P., and 1,249 of these shares are owned by Draper Fisher Jurvetson Partners VII, LLC. /s/ Barbara Mery, Attorney-in-fact 2013-07-01 /s/ Barbara Mery, Attorney-in-fact 2013-07-01 /s/ Barbara Mery, Attorney-in-fact 2013-07-01 /s/ Barbara Mery, Attorney-in-fact 2013-07-01 /s/ Barbara Mery, Attorney-in-fact 2013-07-02