X0306 4 2016-11-10 0 0001401708 NanoString Technologies Inc NSTG 0001575831 SAUNDERS BARNEY 530 FAIRVIEW AVENUE N. SEATTLE WA 98109 0 1 0 0 SVP, Sales & Marketing Common Stock 2016-11-10 4 M 0 600 1.92 A 6371 D Common Stock 2016-11-10 4 S 0 3659 22.46 D 2712 D Common Stock 2016-11-10 4 S 0 1042 22.74 D 1670 D Common Stock 2016-11-11 4 M 0 2907 1.92 A 4577 D Common Stock 2016-11-11 4 M 0 4375 6.72 A 8952 D Common Stock 2016-11-11 4 S 0 7282 22.45 D 1670 D Stock Option (right to buy) 1.92 2016-11-10 4 M 0 600 0.00 D 2022-02-28 Common Stock 600 2907 D Stock Option (right to buy) 1.92 2016-11-11 4 M 0 2907 0.00 D 2022-02-28 Common Stock 2907 0 D Stock Option (right to buy) 6.72 2016-11-11 4 M 0 4375 0.00 D 2023-01-09 Common Stock 4375 625 D The sales reported by Mr. Saunders were effected pursuant to a Rule 10b5-1 trading plan adopted on September 15, 2016. The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $21.70 to $22.70, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein. The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $22.71 to $22.81, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein. The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $22.13 to $22.72, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein. 15% of the shares subject to the Option vested on March 1, 2012 (the "Vesting Commencement Date"), and thereafter 1/48th of the remaining shares subject to the Option vest on the monthly anniversary of the Vesting Commencement Date. This option is subject to an early exercise provision and is immediately exercisable. 1/48th of the shares subject to such Option vest on each monthly anniversary of January 10, 2013. /s/ Shannon Atchison, attorney in fact 2016-11-14