Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.22.1
Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2022
Equity [Abstract]  
Summary of Common Stock Shares Activity

The following table summarizes common stock share activity for the three months ended March 31, 2022 and 2021 (dollars in thousands):

 

 

 

Three Months Ended March 31, 2022

 

 

 

Shares of

Common Stock

 

 

Common

Stock

 

 

Additional

Paid-in

Capital

 

 

Accumulated

Deficit

 

 

Total

Stockholders’

Equity

 

Balance, December 31, 2021

 

 

28,705,334

 

 

$

32

 

 

$

400,705

 

 

$

(359,479

)

 

$

41,258

 

Net loss

 

 

 

 

 

 

 

 

 

 

 

(5,451

)

 

 

(5,451

)

Stock-based compensation expense

 

 

 

 

 

 

 

 

922

 

 

 

 

 

 

922

 

Common stock issued, net of expenses

 

 

487,610

 

 

 

 

 

 

2,135

 

 

 

 

 

 

2,135

 

Common stock issued through employee stock purchase plan

 

 

3,120

 

 

 

 

 

 

10

 

 

 

 

 

 

10

 

Common stock issued for vested restricted stock units

 

 

25,094

 

 

 

 

 

 

(18

)

 

 

 

 

 

(18

)

Vested Loan Agreement warrants

 

 

 

 

 

 

 

 

71

 

 

 

 

 

 

 

71

 

Balance, March 31, 2022

 

 

29,221,158

 

 

$

32

 

 

$

403,825

 

 

$

(364,930

)

 

$

38,927

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended March 31, 2021

 

 

 

Shares of

Common Stock

 

 

Common

Stock

 

 

Additional

Paid-in

Capital

 

 

Accumulated

Deficit

 

 

Total

Stockholders’

Equity

 

Balance, December 31, 2020

 

 

19,663,698

 

 

$

20

 

 

$

349,351

 

 

$

(326,613

)

 

$

22,758

 

Net loss

 

 

 

 

 

 

 

 

 

 

 

(4,676

)

 

 

(4,676

)

Stock-based compensation expense

 

 

 

 

 

 

 

 

398

 

 

 

 

 

 

398

 

Common stock issued for conversion of April 2020 Notes

 

 

959,080

 

 

 

1

 

 

 

7,452

 

 

 

 

 

 

7,453

 

Common stock issued through employee stock purchase plan

 

 

2,184

 

 

 

 

 

 

6

 

 

 

 

 

 

6

 

Common stock issued for vested restricted stock units

 

 

675

 

 

 

 

 

 

(15

)

 

 

 

 

 

(15

)

Balance, March 31, 2021

 

 

20,625,637

 

 

$

21

 

 

$

357,192

 

 

$

(331,289

)

 

$

25,924

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common Stock Reserved For Future Issuances

The Company had reserved shares of common stock for future issuance as follows:

 

 

 

March 31, 2022

 

 

December 31, 2021

 

Outstanding stock options

 

 

2,050,094

 

 

 

1,542,126

 

Outstanding restricted stock units

 

 

981,841

 

 

 

133,834

 

Warrants to purchase common stock associated with March 2018 Public Offering – Series 2

 

 

798,810

 

 

 

798,810

 

Warrants to purchase common stock associated with December 2020 Public Offering - Series 2

 

 

6,800,000

 

 

 

6,800,000

 

Prefunded warrants to purchase common stock associated with December 2020 Public Offering

 

 

3,200,000

 

 

 

3,200,000

 

Warrants to purchase common stock associated with Loan Agreement

 

 

198,819

 

 

 

170,410

 

Warrant to purchase common stock associated with Danforth

 

 

50,000

 

 

 

50,000

 

For possible future issuance for the conversion of the March 2019 Notes

 

 

1,138,200

 

 

 

1,138,200

 

For possible future issuance under 2014 Plan (Note 9)

 

 

150,114

 

 

 

295,220

 

For possible future issuance under Employee Stock Purchase Plan

 

 

3,714

 

 

 

3,893

 

For possible future issuance under 2015 Plan (Note 9)

 

 

147,250

 

 

 

235,000

 

Total common shares reserved for future issuance

 

 

15,518,842

 

 

 

14,367,493