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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Net Loss Per Share |
10. | Net Loss Per Share
The Company applies the two-class method to calculate basic and diluted net loss per share of Common Stock. The Junior Preferred Stock are participating securities due to their dividend rights and the Senior Preferred Stock has stated dividend rates. The two-class method is an earnings allocation method under which earnings per share is calculated for Common Stock considering a participating security’s rights to undistributed earnings as if all such earnings had been distributed during the period. The Company’s participating securities are not included in the computation of net loss per share in periods of net loss because the preferred stockholders have no contractual obligation to participate in losses. The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented (in thousands):
|  | Years Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Senior Preferred Stock |  |  | — |  |  |  | — |  |  |  | 15,336 |
Junior Preferred Stock |  |  | — |  |  |  | — |  |  |  | 18,584 |
Employee stock options |  |  | 13,583 |  |  |  | 14,427 |  |  |  | 11,084 |
RSUs outstanding |  |  | 865 |  |  |  | 560 |  |  |  | — |
Warrants |  |  | 7 |  |  |  | 173 |  |  |  | 173 |
FibroGen Europe Preferred stock |  |  | — |  |  |  | — |  |  |  | 959 |
|  |  | 14,455 |  |  |  | 15,160 |  |  |  | 46,136 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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