X0306 4 2016-11-10 0 0001401708 NanoString Technologies Inc NSTG 0001225501 JOHNSON JAMES A 530 FAIRVIEW AVENUE N. SEATTLE WA 98109 0 1 0 0 Chief Financial Officer Common Stock 2016-11-10 4 M 0 5609 5.12 A 10698 D Common Stock 2016-11-10 4 S 0 4143 22.46 D 6555 D Common Stock 2016-11-10 4 S 0 1466 22.76 D 5089 D Common Stock 2016-11-11 4 M 0 4391 5.12 A 9480 D Common Stock 2016-11-11 4 S 0 4391 22.60 D 5089 D Stock Option (right to buy) 5.12 2016-11-10 4 M 0 5609 0.00 D 2022-10-15 Common Stock 5609 77359 D Stock Option (right to buy) 5.12 2016-11-11 4 M 0 4391 0.00 D 2022-10-15 Common Stock 4391 72968 D The sales reported by Mr. Johnson were effected pursuant to a Rule 10b5-1 trading plan adopted on September 14, 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 $21.71 to $22.71, 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 $22.72 to $22.82, 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 $22.50 to $22.75, 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. This option is subject to an early exercise provision and is immediately exercisable. 25% of the shares subject to the Option vest on the one-year anniversary of October 1, 2012 (the "Vesting Commencement Date"), and thereafter 1/48th of the shares subject to the Option vest on each monthly anniversary of the Vesting Commencement. /s/ Shannon Atchison, attorney in fact 2016-11-14