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Changes in Stockholders' Equity

9 Months Ended

Sep. 30, 2024

(3)

Changes in Stockholders’ Equity

Three and Nine Months Ended September 30, 2024 (in thousands):


						Accumulated
				Additional		Other				Total
	Common Stock			Paid-In		Comprehensive		Accumulated		Stockholders’
	Shares	Amount		Capital		Income		Deficit		Equity
Balance, June 30, 2024	179,597	$	17	$	508,971	$	123	$	(386,953)	$	122,158
Issuance of common stock upon exercise of stock options	57		—		15		—		—		15
Issuance of common stock upon release of RSUs	1,010		—		—		—		—		—
Proceeds from sale of common stock through At-The-Market (ATM) Offering	11,294		2		11,996		—		—		11,998
Capitalization of deferred costs to equity upon share issuance	—		—		(58)		—		—		(58)
Stock-based compensation	—		—		3,427		—		—		3,427
Foreign currency translation loss	—		—		—		61		—		61
Change in unrealized loss on available-for-sale securities	—		—		—		70		—		70
Net loss	—		—		—		—		(14,833)		(14,833)
Balance, September 30, 2024	191,958	$	19	$	524,351	$	254	$	(401,786)	$	122,838


						Accumulated
				Additional		Other				Total
	Common Stock			Paid-In		Comprehensive		Accumulated		Stockholders’
	Shares	Amount		Capital		Income		Deficit		Equity
Balance, December 31, 2023	147,066	$	14	$	463,089	$	244	$	(353,759)	$	109,588
Issuance of common stock upon exercise of stock options	307		—		83		—		—		83
Issuance of common stock upon release of RSUs	3,810		—		—		—		—		—
Proceeds from sale of common stock through Purchase Agreement - B. Riley	10,057		1		12,837		—		—		12,838
Proceeds from sale of common stock through At-The-Market (ATM) Offering	30,718		4		38,827		—		—		38,831
Capitalization of deferred costs to equity upon share issuance	—		—		(190)		—		—		(190)
Stock-based compensation	—		—		9,705		—		—		9,705
Foreign currency translation loss	—		—		—		(44)		—		(44)
Change in unrealized loss on available-for-sale securities	—		—		—		54		—		54
Net loss	—		—		—		—		(48,027)		(48,027)
Balance, September 30, 2024	191,958	$	19	$	524,351	$	254	$	(401,786)	$	122,838

Three and Nine Months Ended September 30, 2023 (in thousands):


						Accumulated
				Additional		Other				Total
	Common Stock			Paid-In		Comprehensive		Accumulated		Stockholders’
	Shares	Amount		Capital		Income (loss)		Deficit		Equity
Balance, June 30, 2023	132,401	$	13	$	437,320	$	1	$	(318,972)	$	118,362
Issuance of common stock upon exercise of stock options	164		—		94		—		—		94
Issuance of common stock upon exercise of common stock warrants	334		—		5		—		—		5
Issuance of common stock upon release of RSUs	946		—		—		—		—		—
Proceeds from sale of common stock through Purchase Agreement - B. Riley	6,336		1		12,702		—		—		12,703
Stock-based compensation	—		—		3,669		—		—		3,669
Foreign currency translation gain	—		—		—		41		—		41
Change in unrealized loss on available-for-sale securities	—		—		—		32		—		32
Net loss	—		—		—		—		(22,215)		(22,215)
Balance, September 30, 2023	140,181	$	14	$	453,790	$	74	$	(341,187)	$	112,691


						Accumulated
				Additional		Other				Total
	Common Stock			Paid-In		Comprehensive		Accumulated		Stockholders’
	Shares	Amount		Capital		Income (loss)		Deficit		Equity
Balance, December 31, 2022	125,257	$	12	$	429,025	$	(161)	$	(278,652)	$	150,224
Issuance of common stock upon exercise of stock options	3,588		—		996		—		—		996
Issuance of common stock upon exercise of common stock warrants	477		—		6		—		—		6
Issuance of common stock upon release of RSUs	2,654		—		—		—		—		—
Proceeds from sale of common stock through Purchase Agreement - B. Riley	8,205		2		15,049		—		—		15,051
Capitalization of deferred costs to equity upon share issuance	—		—		(13)		—		—		(13)
Stock-based compensation	—		—		8,727		—		—		8,727
Foreign currency translation loss	—		—		—		(38)		—		(38)
Change in unrealized loss on available-for-sale securities	—		—		—		273		—		273
Net loss	—		—		—		—		(62,535)		(62,535)
Balance, September 30, 2023	140,181	$	14	$	453,790	$	74	$	(341,187)	$	112,691