X0306 4 2020-06-15 0 0001401708 NanoString Technologies Inc NSTG 0001274139 HERSHBERG ROBERT C/O NANOSTRING TECHNOLOGIES, INC. 530 FAIRVIEW AVENUE N SEATTLE WA 98109 1 0 0 0 Common Stock 2020-06-15 4 M 0 1890 A 1890 D Common Stock 2020-06-15 4 M 0 1500 11.20 A 3390 D Common Stock 2020-06-15 4 S 0 1500 30.7906 D 1890 D Restricted Stock Units 2020-06-15 4 M 0 1890 0 D Common Stock 1890.0 0 D Stock Option (right to buy) 11.2 2020-06-15 4 M 0 1500 7.47 D 2025-03-01 Common Stock 1500.0 13188 D Restricted Stock Units 2020-06-16 4 A 0 5520 0 A Common Stock 5520.0 5520 D Restricted stock units ("RSUs") convert into Common Stock on a one-for-one basis. The sales reported by Dr. Hershberg were effected pursuant to a Rule 10b5-1 trading plan adopted on March 15, 2020. 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 $30.10 to $31.11, 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. Each RSU represents a contingent right to receive one (1) share of Issuer's common stock. 100% of the RSUs vest on the earlier of the one year anniversary of June 18, 2019 or on the date immediately prior to the 2020 annual meeting of stockholders. 50% of the shares subject to the Option vest on the one year anniversary of March 2, 2015 (the "Vesting Commencement Date") and thereafter the remaining 50% of the total shares vest in twelve equal monthly installments on each monthly anniversary of the Vesting Commencement Date, subject to continued service as a director through each vesting date. 100% of the RSUs vest on the earlier of the one year anniversary of June 16, 2020 or on the date immediately prior to the 2021 annual meeting of stockholders. /s/ Shannon Atchison, Attorney-in-fact 2020-06-17