13D Filing: Casdin Capital and Genmark Diagnostics Inc. (GNMK)

Page 11 of 11

Page 11 of 11 – SEC Filing

Exhibit B

Schedule of Transactions in Shares

Date of Transaction

Title of Class

Number of Shares Acquired Number of Shares Disposed

Price Per

Share*

1/26/2018 Common Stock, $0.0001 par value 270,000 0 $5.93
2/26/2018 Common Stock, $0.0001 par value 195,000 0 $4.57
2/27/2018 Common Stock, $0.0001 par value 155,000 0 $4.71

*The price per share represents the average price for all trading
by the Reporting Persons in the Shares on the relevant date.

Follow Genmark Diagnostics Inc. (NASDAQ:GNMK)

Page 11 of 11