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)

v3.10.0.1

Stock-based Compensation - Stock Option Activity (Details) - Stock Options [Member] $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, Outstanding at January 1, 2018 \| shares	1,622,065
Number of shares, Granted \| shares	285,208
Number of shares, Exercised \| shares	(52,400)
Number of shares, Forfeited, expired or cancelled \| shares	(202,941)
Number of shares, Outstanding at September 30, 2018 \| shares	1,651,932
Number of shares, Exercisable at September 30, 2018 \| shares	1,001,518
Weighted Average Exercise Price Per Share, Outstanding at January 1, 2018 \| $ / shares	$ 24.54
Weighted Average Exercise Price Per Share, Granted \| $ / shares	28.00
Weighted Average Exercise Price Per Share, Exercised \| $ / shares	5.27
Weighted Average Exercise Price Per Share, Forfeited, expired or cancelled \| $ / shares	44.07
Weighted Average Exercise Price Per Share, Outstanding at September 30, 2018 \| $ / shares	23.35
Weighted Average Exercise Price Per Share, Exercisable at September 30, 2018 \| $ / shares	$ 27.98
Weighted Average Contractual Term (in years), Outstanding at September 30, 2018	8 years
Weighted Average Contractual Term (in years), Exercisable at September 30, 2018	7 years 4 months 24 days
Aggregate Intrinsic Value, Outstanding at September 30, 2018 \| $	$ 13,153
Aggregate Intrinsic Value, Exercisable at September 30, 2018 \| $	$ 8,765

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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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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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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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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 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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