Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.21.2
Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2021
Stockholders' Equity  
Schedule of share-based compensation expense recognized

The estimated grant-date fair value of the Company’s stock-based awards is amortized on a straight-line basis over the awards’ service periods. Stock-based compensation expense recognized was as follows (in thousands):

Three Months Ended September 30, 

Nine Months Ended September 30, 

    

2021

    

2020

    

2021

    

2020

    

Research and development

$

279

$

203

$

787

$

616

Selling, general and administrative

 

690

 

584

 

2,455

 

1,828

Cost of goods sold

9

29

Total stock-based compensation

$

978

$

787

$

3,271

$

2,444

Summary of stock option activity

Options Outstanding

    

    

    

Weighted 

Average 

Weighted 

Remaining 

Average 

Contractual 

Number of 

Exercise 

Term 

Shares

Price

(in years)

Balance, December 31, 2020

 

9,564,519

$

3.07

 

7.17

Granted

 

2,657,642

 

1.86

Exercised

 

(146,559)

 

1.28

Forfeited/Cancelled

 

(521,726)

 

2.77

Balance, September 30, 2021

 

11,553,876

$

2.83

 

6.99

Vested or expected to vest at September 30, 2021

 

11,553,876

$

2.83

 

6.99

Exercisable at September 30, 2021

 

6,917,596

$

3.45

 

5.69

Schedule of weighted-average assumptions:

September 30, 

    

2021

    

2020

    

    

Expected term of options (in years)

 

6.1

 

5.7

 

 

Risk-free interest rate

 

0.9

%  

0.7

%  

 

Expected volatility

 

97.8

%  

96.1

%  

 

Dividend yield

 

%  

%  

 

Schedule of changes in the status of non-vested RSU

    

    

Weighted 

Average 

Number of 

Grant Date

Awards

Fair Value

Non-vested at December 31, 2020

 

3,771,342

$

1.66

Granted

 

27,500

1.20

Vested

 

(143,750)

0.85

Forfeited

 

(624,075)

1.61

Non-vested at September 30, 2021

 

3,031,017

$

1.71

Schedule of shares available to be granted under equity incentive plans

At September 30, 2021, the Company has the following shares available to be granted under its equity incentive plans:

    

    

Inducement 

2013 Plan

Plan

Available at December 31, 2020

 

4,053,501

 

252,500

Authorized

 

6,399,997

Granted

 

(2,685,142)

Shares withheld for taxes not issued

49,915

Forfeited/Cancelled

 

1,145,801

Available at September 30, 2021

 

8,964,072

 

252,500

Schedule of shares of common stock reserved/available

At September 30, 2021, the Company has reserved the following shares of common stock for issuance:

Stock options outstanding under 2013 Plan

    

11,306,376

Restricted stock units outstanding under 2013 Plan

3,031,017

Shares reserved for future issuance under 2013 Plan

 

8,964,072

Stock options outstanding under Inducement Plan

 

247,500

Shares reserved for future issuance under Inducement Plan

 

252,500

Shares reserved for future issuance under 2013 Employee Stock Purchase Plan

 

225,806

Warrants outstanding

 

295,591

Total shares of common stock reserved for future issuance

 

24,322,862