Additional

Accumulated Other

Total

Common

Paid-In

Comprehensive

Accumulated

Stockholders’

Shares

Amount

Capital

Loss

Deficit

Equity

Balance at December 31, 2022

87,103,007

$

9

$

2,420,223

$

(7,461

)

$

(1,177,187

)

$

1,235,584

Issuance of common stock through 
   at-the-market offerings, net of 
   issuance costs of $62

35,349

-

1,466

-

1,466

Contingent consideration paid to Rewrite holders

567,045

-

24,126

-

24,126

Exercise of stock options

48,353

-

755

-

755

Vesting of restricted stock units

342,025

-

-

-

-

Equity-based compensation

-

-

27,255

-

27,255

Other comprehensive loss - unrealized gain on marketable securities

-

-

-

2,989

2,989

Other comprehensive loss - equity method investment

-

-

-

1,794

1,794

Net loss

-

-

-

(103,126

)

(103,126

)

Balance at March 31, 2023

88,095,779

$

9

$

2,473,825

$

(2,678

)

$

(1,280,313

)

$

1,190,843

Additional

Accumulated Other

Total

Common

Paid-In

Comprehensive

Accumulated

Stockholders’

Shares

Amount

Capital

Loss

Deficit

Equity

Balance at December 31, 2021

74,485,883

$

7

$

1,745,870

$

(2,632

)

$

(703,001

)

$

1,040,244

Issuance of common stock through 
   at-the-market offerings, net of 
   issuance costs of $164

579,788

1

38,885

-

-

38,886

Exercise of stock options

503,830

-

8,435

-

-

8,435

Vesting of restricted stock units

54,666

-

-

-

-

-

Equity-based compensation

-

-

18,491

-

-

18,491

Other comprehensive loss - unrealized loss on marketable securities

-

-

-

(5,128

)

-

(5,128

)

Other comprehensive loss - equity method investment

-

-

-

(302

)

-

(302

)

Net loss

-

-

-

-

(146,872

)

(146,872

)

Balance at March 31, 2022

75,624,167

$

8

$

1,811,681

$

(8,062

)

$

(849,873

)

$

953,754