Asset Contribution Agreement (Tables)

12 Months Ended

Dec. 31, 2013

Asset Contribution Agreement [Abstract]

Assets Transferred by BioTime and Related Consideration

The assets transferred by BioTime and the related consideration paid were recorded as follows:

Consideration transferred to BioTime:
Asterias Series B shares	$	52,164,568
Warrants to purchase Asterias Series B shares		2,012,481
Excess of contributed assets’ value over consideration		4,800,063
Total consideration issued	$	58,977,112
Assets transferred by BioTime:
BioTime common shares, at fair value	$	34,985,163
BioTime Warrants, at fair value		18,276,406
Cancellation of outstanding obligation to BioTime		5,000,000
Investment in affiliates, at cost		415,543
Geron asset acquisition related transaction costs paid by BioTime		300,000
Total assets transferred	$	58,977,112

Assets Acquired from Geron and Related Consideration

The assets acquired from Geron and the related consideration were recorded as follows:

Consideration paid to Geron:
Asterias Series A shares, net of share issuance costs of $541,800	$	15,121,222
Obligation to distribute BioTime Warrants		18,276,406
Transaction and other costs		1,519,904
Total consideration paid	$	34,917,532
Assets acquired from Geron (preliminary allocation):
Patents and other intellectual property rights related to hES cells	$	29,017,009
Deferred tax liability arising from difference in book versus tax basis on Geron intangible assets acquired		(11,558,243	)
IPR&D expensed upon acquisition		17,458,766
Total assets and in-process research and development acquired	$	34,917,532