Note 9 - Share Capital

9 Months Ended

Sep. 30, 2018

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

9

. Share capital

During the

first

nine

months of

2018,

the Company issued

613,075

ordinary shares upon the exercise of options and

63,254

ordinary shares were issued upon the vesting of RSUs.

On 

August 14, 2017, 

the Company entered into an underwriting agreement, or the Underwriting Agreement, with BTIG, LLC, as sole underwriter, relating to the issuance and sale of 

2,500,000

 ordinary shares, nominal value 

£0.006705

 per share, at a price to the public of 

$16.05

 per share, or the Offering, which resulted in approximately 

$39.3

 million of net proceeds to the Company after deducting underwriting discounts and estimated offering expenses. The Offering closed on 

August 18, 2017.

Additionally during 

2017,

 

500,182

 ordinary shares were issued upon the exercise of options, and

26,021

ordinary shares were issued upon the vesting of RSUs.