Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity

v3.22.0.1
Stockholders' Equity
12 Months Ended
Dec. 31, 2021
Equity [Abstract]  
Stockholders' Equity

7. Stockholders’ equity

Common stock

Each share of common stock is entitled to one vote. The holders of common stock are also entitled to receive dividends whenever funds are legally available and when declared by the board of directors, subject to the prior rights of holders of other classes of stock outstanding.

Preferred stock

Pursuant to the amended and restated certificate of incorporation filed by the Company in connection with the completion of its initial public offering, the Company’s board of directors is authorized to issue up to 10,000,000 shares of preferred stock in one or more series and to fix the rights, preferences, privileges and restrictions thereof. These rights, preferences and privileges could include dividend rights, conversion rights, voting rights, redemption rights, liquidation preferences, sinking fund terms and the number of shares constituting any series or the designation of such series, any or all of which may be greater than the rights of common stock. The issuance of preferred stock could adversely affect the voting power of holders of common stock and the likelihood that such holders will receive dividend payments and payments upon liquidation. In addition, the issuance of preferred stock could have the effect of delaying, deferring or preventing change in the Company’s control or other corporate action. As of December 31, 2021 and 2020, no shares of preferred stock were issued or outstanding, and the board of directors has not authorized or designated any rights, preferences, privileges and restrictions for any class of preferred stock.

Dividends

There were no dividends declared during the years ended December 31, 2021, 2020 and 2019.

Stock incentive plans

The Company has a 2012 Equity Incentive Plan (2012 Plan) under which the Company granted options to purchase shares of its common stock. As of December 31, 2021, options to purchase 71,452 shares of common stock remained outstanding under the 2012 Plan. The 2012 Plan was terminated in connection with the Company’s initial public offering in February 2014, and accordingly, no new options are available for issuance under this plan. The 2012 Plan continues to govern outstanding awards granted thereunder.

The Company has a 2014 Equity Incentive Plan (2014 Plan) that provides for the grant of incentive stock options, within the meaning of Section 422 of the Internal Revenue Code, to the Company’s employees and any parent and subsidiary corporation’s employees, and for the grant of nonstatutory stock options, restricted stock, restricted stock units, restricted stock awards, stock appreciation rights, performance units and performance shares to its employees, directors and consultants and its parent and subsidiary corporations’ employees and consultants.

As of December 31, 2021, awards with respect to 757,401 shares of the Company’s common stock were outstanding, and 1,481,328 shares of common stock remained available for issuance under the 2014 Plan. The shares available for issuance under the 2014 Plan will be increased by any shares returned to the 2012 Plan and the 2014 Plan as a result of expiration or termination of awards (provided that the maximum number of shares that may be added to the 2014 Plan pursuant to such previously granted awards under the 2012 Plan is 2,328,569 shares). The number of shares available for issuance under the 2014 Plan also is increased annually on the first day of each fiscal year by an amount equal to the least of:

 

895,346 shares;

 

4% of the outstanding shares of common stock as of the last day of the Company’s immediately preceding fiscal year; or

 

such other amount as the Company’s board of directors may determine.

For 2021, no additional shares were added to the 2014 Plan share reserve pursuant to the provision described above.

Stock options

Options typically expire between seven and ten years from the date of grant and vest over one to four-year terms. Options have been granted to employees, directors and consultants of the Company, as determined by the board of directors, at the deemed fair market value of the shares underlying the options at the date of grant. 

 

The activity for stock options under the Company’s stock plans for the years ended December 31, 2021, 2020 and 2019 is as follows:

 

 

 

 

 

 

 

 

 

 

 

 

Remaining

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

weighted-

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

average

 

 

Per share

 

 

 

 

 

 

 

 

average

 

 

contractual

 

 

average

 

 

 

 

 

 

Price per

 

exercise

 

 

terms

 

 

intrinsic

 

 

Options

 

 

share

 

price

 

 

(in years)

 

 

value

 

Outstanding as of December 31, 2018

 

1,127,336

 

 

$0.75-$83.30

 

$

34.89

 

 

 

3.84

 

 

$

89.28

 

Exercised

 

(109,291

)

 

0.75-58.95

 

 

28.45

 

 

 

 

 

 

 

 

 

Forfeited

 

(37,161

)

 

38.54-58.95

 

 

44.58

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2019

 

980,884

 

 

0.75-83.30

 

 

35.24

 

 

 

2.84

 

 

 

34.07

 

Vested and exercisable as of December 31, 2019

 

929,825

 

 

0.75-83.30

 

 

34.73

 

 

 

2.81

 

 

 

34.64

 

Vested and expected to vest as of December 31, 2019

 

977,589

 

 

0.75-83.30

 

 

35.21

 

 

 

2.84

 

 

 

34.11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2019

 

980,884

 

 

0.75-83.30

 

 

35.24

 

 

 

2.84

 

 

 

34.07

 

Exercised

 

(18,626

)

 

1.17-44.19

 

 

17.81

 

 

 

 

 

 

 

 

 

Forfeited

 

(6,779

)

 

44.19-56.72

 

 

48.23

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2020

 

955,479

 

 

0.75-83.30

 

 

35.49

 

 

 

1.85

 

 

 

11.81

 

Vested and exercisable as of December 31, 2020

 

955,479

 

 

0.75-83.30

 

 

35.49

 

 

 

1.85

 

 

 

11.81

 

Vested and expected to vest as of December 31, 2020

 

955,479

 

 

0.75-83.30

 

 

35.49

 

 

 

1.85

 

 

 

11.81

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2020

 

955,479

 

 

0.75-83.30

 

 

35.49

 

 

 

1.85

 

 

 

11.81

 

Exercised

 

(486,038

)

 

0.75-46.66

 

 

28.19

 

 

 

 

 

 

 

 

 

Forfeited

 

(10,000

)

 

83.30

 

 

83.30

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2021

 

459,441

 

 

1.17-83.30

 

 

42.18

 

 

 

1.36

 

 

 

4.31

 

Vested and exercisable as of December 31, 2021

 

459,441

 

 

1.17-83.30

 

 

42.18

 

 

 

1.36

 

 

 

4.31

 

Vested and expected to vest as of December 31, 2021

 

459,441

 

 

$1.17-$83.30

 

$

42.18

 

 

 

1.36

 

 

$

4.31

 

 

 

The total intrinsic value of options exercised during the years ended December 31, 2021, 2020, and 2019 was $14,524, $494, and $7,910, respectively. As of December 31, 2021, all stock-based compensation expense for options granted under the Plans was recognized.

Stock incentive awards

The Company grants restricted stock units (RSUs) and restricted stock awards (RSAs) under the 2014 Plan (Stock Awards). The Stock Awards vest either based solely on the satisfaction of time-based service conditions or on the satisfaction of time-based service conditions combined with performance criteria. Stock Awards are subject to forfeiture if the holder’s services to the Company terminate before vesting.

Stock Awards granted with only time-based service vesting conditions generally vest over a four-year service period, as defined in the terms of each award. Stock Awards that vest based on the satisfaction of time-based service conditions combined with performance criteria generally vest over a three-year service and performance period, based on performance criteria established at the time of the award. The portion of the Stock Award that is earned may equal or be less than the targeted number of shares subject to the Stock Award depending on whether the performance criteria are met.

Stock Awards activity for the years ended December 31, 2021, 2020 and 2019 is summarized below:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

average

 

 

 

 

 

 

 

 

 

 

 

 

 

 

grant

 

 

 

 

 

 

Performance

 

 

 

 

 

 

date fair

 

 

 

 

 

 

and

 

 

 

 

 

 

value

 

Restricted stock units

Time-based

 

 

time-based

 

 

Total

 

 

per share

 

Unvested restricted stock units as of December 31, 2018 (1)

 

58,589

 

 

$

8,739

 

 

 

67,328

 

 

$

115.16

 

Granted

 

87,902

 

 

 

 

 

 

87,902

 

 

 

75.56

 

Vested

 

(24,680

)

 

 

(4,366

)

 

 

(29,046

)

 

 

123.53

 

Forfeited/canceled

 

(12,835

)

 

 

(1,239

)

 

 

(14,074

)

 

 

102.89

 

Unvested restricted stock units as of December 31, 2019 (1)

 

108,976

 

 

 

3,134

 

 

 

112,110

 

 

$

83.48

 

Unvested and expected to vest restricted stock units outstanding as of

   December 31, 2019

 

 

 

 

 

 

 

 

 

103,087

 

 

$

83.22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock units as of December 31, 2019

 

108,976

 

 

 

3,134

 

 

 

112,110

 

 

$

83.48

 

Granted

 

210,622

 

 

 

88,458

 

 

 

299,080

 

 

 

43.52

 

Vested

 

(49,636

)

 

 

 

 

 

(49,636

)

 

 

83.31

 

Forfeited/canceled

 

(24,500

)

 

 

(3,134

)

 

 

(27,634

)

 

 

70.60

 

Unvested restricted stock units as of December 31, 2020 (1)

 

245,462

 

 

 

88,458

 

 

 

333,920

 

 

$

49.29

 

Unvested and expected to vest restricted stock units outstanding as of

   December 31, 2020

 

 

 

 

 

 

 

 

 

246,420

 

 

$

49.82

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock units as of December 31, 2020

 

245,462

 

 

 

88,458

 

 

 

333,920

 

 

$

49.29

 

Granted

 

240,044

 

 

 

88,902

 

 

 

328,946

 

 

 

56.01

 

Vested

 

(109,504

)

 

 

 

 

 

(109,504

)

 

 

52.79

 

Forfeited/canceled

 

(86,836

)

 

 

(78,248

)

 

 

(165,084

)

 

 

46.88

 

Unvested restricted stock units as of December 31, 2021 (1)

 

289,166

 

 

 

99,112

 

 

 

388,278

 

 

$

54.81

 

Unvested and expected to vest restricted stock units outstanding as of

   December 31, 2021

 

 

 

 

 

 

 

 

 

331,358

 

 

$

54.98

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

average

 

 

 

 

 

 

 

 

 

 

 

 

 

 

grant

 

 

 

 

 

 

Performance

 

 

 

 

 

 

date fair

 

 

 

 

 

 

and

 

 

 

 

 

 

value

 

Restricted stock awards

Time-based

 

 

time-based

 

 

Total

 

 

per share

 

Unvested restricted stock awards outstanding as of December 31, 2018 (1)

 

36,937

 

 

 

47,821

 

 

 

84,758

 

 

$

115.80

 

Granted

 

54,853

 

 

 

40,166

 

 

 

95,019

 

 

 

86.10

 

Vested

 

(13,627

)

 

 

(15,732

)

 

 

(29,359

)

 

 

115.37

 

Forfeited/canceled

 

(7,093

)

 

 

(9,627

)

 

 

(16,720

)

 

 

109.11

 

Unvested restricted stock awards outstanding as of December 31, 2019 (1)

 

71,070

 

 

 

62,628

 

 

 

133,698

 

 

$

95.74

 

Unvested and expected to vest restricted stock awards outstanding as of

   December 31, 2019

 

 

 

 

 

 

 

 

 

79,473

 

 

$

90.31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock awards outstanding as of December 31, 2019

 

71,070

 

 

 

62,628

 

 

 

133,698

 

 

$

95.74

 

Vested

 

(28,994

)

 

 

 

 

 

(28,994

)

 

 

89.37

 

Forfeited/canceled

 

 

 

 

(29,273

)

 

 

(29,273

)

 

 

110.27

 

Unvested restricted stock awards outstanding as of December 31, 2020 (1)

 

42,076

 

 

 

33,355

 

 

 

75,431

 

 

$

93.96

 

Unvested and expected to vest restricted stock awards outstanding as of

   December 31, 2020

 

 

 

 

 

 

 

 

 

44,159

 

 

$

85.90

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unvested restricted stock awards outstanding as of December 31, 2020

 

42,076

 

 

 

33,355

 

 

 

75,431

 

 

$

93.96

 

Vested

 

(15,728

)

 

 

 

 

 

(15,728

)

 

 

91.17

 

Forfeited/canceled

 

(15,932

)

 

 

(27,726

)

 

 

(43,658

)

 

 

98.05

 

Unvested restricted stock awards outstanding as of December 31, 2021 (1)

 

10,416

 

 

 

5,629

 

 

 

16,045

 

 

$

87.12

 

Unvested and expected to vest restricted stock awards outstanding as of

   December 31, 2021

 

 

 

 

 

 

 

 

 

15,532

 

 

$

90.08

 

 

(1)

Outstanding restricted stock units and restricted stock awards are based on the maximum payout of the targeted number of shares.

 

As of December 31, 2021, the unrecognized compensation cost related to unvested employee restricted stock units and restricted stock awards was $13,685, excluding estimated forfeitures. This amount is expected to be recognized over a weighted-average period of 2.5 years.

Employee stock purchase plan

The Company’s 2014 Employee Stock Purchase Plan (ESPP) provides for the grant to all eligible employees an option to purchase stock under the ESPP, within the meaning Section 423 of the Internal Revenue Code. The ESPP permits participants to purchase common stock through payroll deductions of up to 15% of their eligible compensation, which includes a participant’s base straight time gross earnings, incentive compensation, bonuses, overtime and shift premium, but exclusive of payments for equity compensation and other similar compensation. A participant may purchase a maximum of 1,500 shares during a purchase period. Amounts deducted and accumulated by the participant are used to purchase shares of the Company’s common stock at the end of each six-month period. The purchase price of the shares will be 85% of the lower of the fair market value of the Company’s common stock on the first trading day of each offering period or on the exercise date. The offering periods are currently approximately six months in length beginning on the first business day on or after March 1 and September 1 of each year and ending on the first business day on or after September 1 and March 1 approximately six months later.

As of December 31, 2021, a total of 569,866 shares of common stock were available for sale pursuant to the ESPP. 

The number of shares available for sale under the ESPP is increased annually on the first day of each fiscal year equal to the least of:

 

179,069 shares;

 

1.5% of the outstanding shares of the Company’s common stock on the last day of the Company’s immediately preceding fiscal year; or

 

such other amount as may be determined by the administrator.

For 2021, no additional shares were added to the ESPP share reserve pursuant to the provision described above.

Stock-based compensation

Stock-based compensation expense recognized for the years ended December 31, 2021, 2020 and 2019, was as follows:

 

(amounts in thousands)

Years ended December 31,

 

Stock-based compensation expense by type of award:

2021

 

 

2020

 

 

2019

 

Stock option plan awards

$

 

 

$

709

 

 

$

2,977

 

Restricted stock units and restricted stock awards

 

10,229

 

 

 

6,717

 

 

 

5,413

 

Employee stock purchase plan

 

714

 

 

 

777

 

 

 

739

 

Total stock-based compensation expense

$

10,943

 

 

$

8,203

 

 

$

9,129

 

 

Employee stock-based compensation expense was calculated based on awards of stock options, restricted stock units and restricted stock awards ultimately expected to vest based on the Company’s historical award cancellations. The employee stock-based compensation expense recognized for the years ended December 31, 2020 and 2019 has been reduced for estimated forfeitures of stock option plan awards at a rate of 7.3% and 7.3%, respectively. The employee stock-based compensation expense recognized for the years ended December 31, 2021, 2020 and 2019 has been reduced for estimated forfeitures of restricted stock at a rate of 4.1%, 4.7% and 4.4%, respectively. ASC 718 – Compensation-Stock Compensation requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

For the years ended December 31, 2021, 2020 and 2019, respectively, stock-based compensation expense recognized under ASC 718, included in cost of revenue, research and development expense, sales and marketing expense, and general and administrative expense was as follows:

 

 

Years ended December 31,

 

(amounts in thousands)

2021

 

 

2020

 

 

2019

 

Cost of revenue

$

1,106

 

 

$

698

 

 

$

890

 

Research and development

 

1,276

 

 

 

969

 

 

 

1,100

 

Sales and marketing

 

2,388

 

 

 

2,208

 

 

 

1,755

 

General and administrative

 

6,173

 

 

 

4,328

 

 

 

5,384

 

Total stock-based compensation expense

$

10,943

 

 

$

8,203

 

 

$

9,129

 

 

Valuation assumptions

The employee stock-based compensation expense is recognized under ASC 718.  Stock-based compensation cost for stock awards is based on the number of shares ultimately expected to vest, estimated at each reporting date based on management’s expectations regarding the relevant performance criteria. The value of the award that is ultimately expected to vest is recognized as expense on a straight-line basis over the employee’s requisite service period for stock awards with a time-based service condition and on a graded vesting basis over the employee’s requisite service period for stock awards with performance and time-based service conditions.

Stock-based compensation cost for stock options and employee stock purchase plan are determined at the grant date using the Black-Scholes option pricing model.  During the years ended December 31, 2021, 2020 and 2019, the Company did not grant any stock option awards.

 

The following table displays the assumptions that have been applied to estimate the fair value of the Company’s shares to be issued under the ESPP using the Black-Scholes option pricing model.  

 

 

 

2021

 

 

2020

 

 

2019

 

Expected term (years)

 

 

0.50

 

 

 

0.50

 

 

 

0.50

 

Risk free interest rate

 

0.07-0.12%

 

 

0.12-1.75%

 

 

1.75-2.53%

 

Expected dividend yield

 

None

 

 

None

 

 

None

 

Volatility

 

44.59-83.92%

 

 

47.00-83.92%

 

 

44.00-47.00%

 

 

401(k) retirement savings plan

The Company maintains a 401(k) retirement savings plan for the benefit of eligible employees. Under the terms of this plan, eligible employees are able to make contributions to the plan on a tax-deferred basis. The Company matched employees’ contributions from January 1, 2017 through June 30, 2020. The Company suspended its 401(k) match, effective July 1, 2020; however, matching contributions were reinstated on June 21, 2021. The Company contributed $479, $455, and $871, net of forfeitures, to the 401(k) plan for the years ended December 31, 2021, 2020 and 2019, respectively.