XOMA Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Stock-based Compensation - Stock Option Activity (Details)

v3.21.1

Stock-based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Share-based compensation
Number of shares, Outstanding at beginning of period	1,827,906
Number of shares, Granted	142,823
Number of shares, Exercised	(24,193)		0
Number of shares, Forfeited, expired or cancelled	(53,449)
Number of shares, Outstanding at end of period	1,893,087	1,827,906
Number of shares, Exercisable at end of period	1,527,042
Weighted Average Exercise Price Per Share, Outstanding at beginning of period	$ 20.66
Weighted Average Exercise Price Per Share, Granted	39.02
Weighted Average Exercise Price Per Share, Exercised	16.08
Weighted Average Exercise Price Per Share, Forfeited, expired or cancelled	70.43
Weighted Average Exercise Price Per Share, Outstanding at end of period	20.70	$ 20.66
Weighted Average Exercise Price Per Share, Exercisable at end of period	$ 19.13
Weighted Average Contractual Term, Outstanding	6 years 2 months 23 days	6 years 3 months 21 days
Weighted Average Contractual Term, Exercisable	5 years 6 months 21 days
Aggregate Intrinsic Value, Outstanding	$ 45,176	$ 51,401
Aggregate Intrinsic Value, Exercisable	40,186
Stock Options
Share-based compensation
Options exercised, aggregate intrinsic value	$ 600
Weighted-average grant-date fair value (in dollars per share)	$ 29.57		$ 16.30
Unrecognized compensation expense related to stock options (in dollars)	$ 4,300
Weighted average period of unrecognized compensation expense expected to be recognized	1 year 11 months 23 days

- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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