Rigel Pharmaceuticals, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Net loss per share (Details)

Net loss per share (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Antidilutive securities excluded from the computation of diluted net loss per share
Antidilutive securities excluded from computation of earnings per share (in shares)	15,725	13,822	15,725	13,832
Outstanding options
Antidilutive securities excluded from the computation of diluted net loss per share
Antidilutive securities excluded from computation of earnings per share (in shares)	15,473	13,596	15,473	13,596
Warrant
Antidilutive securities excluded from the computation of diluted net loss per share
Antidilutive securities excluded from computation of earnings per share (in shares)	200	200	200	200
Purchase Plan
Antidilutive securities excluded from the computation of diluted net loss per share
Antidilutive securities excluded from computation of earnings per share (in shares)	52	26	52	36

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details