XOMA Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Compensation and Other Benefit Plans (Tables)

Compensation and Other Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Compensation and Other Benefit Plans

The following table summarizes the Company’s stock option activity for the year ended December 31, 2019:


		Weighted		Weighted	Aggregate
		Average		Average	Intrinsic
		Exercise		Contractual	Value
	Number of	Price		Term	(in
	shares	Per Share		(in years)	thousands)
Outstanding at beginning of year	1,624,746	$	23.09	7.5	$	8,104
Granted	438,814		14.84
Exercised	(55,759)		4.90
Forfeited, expired or cancelled	(168,178)		36.78
Outstanding at end of period	1,839,623	$	20.42	6.88	$	26,829
Exercisable at end of period	1,471,669	$	21.60	6.37	$	22,569

Weighted Average Assumptions

The fair value of stock options granted during the years ended December 31, 2019 and 2018, was estimated based on the following weighted average assumptions for:


	Year Ended December 31,
	2019		2018
Dividend yield	0	%	0	%
Expected volatility	102	%	101	%
Risk-free interest rate	2.42	%	2.72	%
Expected term	5.62 years		5.60 years

Stock-based Compensation Expense

The following table shows total stock-based compensation expense for stock options, RSUs and ESPP in the consolidated statements of operations and comprehensive loss (in thousands):


	Year Ended December 31,
	2019		2018
Research and development	$	204	$	369
General and administrative		4,744		3,533
Total stock-based compensation expense	$	4,948	$	3,902