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SEC Filings

10-K/A
BIOTIME INC filed this Form 10-K/A on 03/29/2017
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Stock-based compensation  Asterias accounts for share-based payments in accordance with ASC 718, Compensation – Stock Compensation, which require the measurement and recognition of compensation expense for all share-based payment awards made to directors and employees, including employee stock options, based on estimated fair values less estimated forfeitures. Consistent with those guidelines, Asterias utilizes the Black-Scholes-Merton option pricing model.  Asterias’ determination of fair value of share-based payment awards on the date of grant using that option-pricing model is affected by Asterias’ stock price as well as by assumptions regarding a number of complex and subjective variables. These variables include, but are not limited to, Asterias’ expected stock price volatility over the term of the awards; the expected term of options granted; and a risk-free rate based on the U.S. Treasury rates in effect during the corresponding expected term of the grant.  Expected term is derived from a combination of Asterias own, historical experience, to the extent available, and using the simplified method under SEC Staff Accounting Bulletin Topic 14, as applicable. Asterias recognizes stock-based compensation on a straight-line basis, net of estimated forfeitures, over the requisite service period.

Asterias also, at times, issues restricted stock or restricted stock units (RSUs) to its executive officers, employees, and members of its Board of Directors, which are restricted and unvested common shares issued or shares issuable as RSUs vest. Restricted stock and RSU compensation expense is recognized on a straight-line basis over the requisite service period of generally four years, based on the grant-date fair value of the stock. Restricted stock is considered legally issued and outstanding on the grant date, while RSUs are not until RSUs vest.  Once the RSUs are vested, equivalent common shares will be issued or issuable to the grantee and therefore the RSUs are not included in total common shares issued and outstanding until vested.

Stock-based compensation expense for non-employee stock-based awards is recognized in accordance with ASC 718 and ASC 505-50, Equity-Based Payments to Non-Employees (“ASC 505-50”). Stock option awards issued to non-employees, principally consultants and employees of BioTime or employees of BioTime subsidiaries who perform services for Asterias, are accounted for at fair value using the Black-Scholes-Merton option pricing model. Management believes that the fair value of the stock options is more reliably measured than the fair value of services received. Asterias records compensation expense based on the then-current fair values of the stock options at each financial reporting date. Compensation expense recorded during the service period is adjusted in subsequent periods for changes in the fair value of the stock options until the earlier of the date at which the non-employee’s performance is complete or a performance commitment is reached, which is generally when the stock option award vests. Compensation expense for non-employee grants is recorded on a straight-line basis in the statements of operations.

Fair value of financial instruments – ASC 820, Fair Value Measurements, clarifies that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability.

ASC 820 requires that the valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. ASC 820 establishes a three tier value hierarchy, which prioritizes inputs that may be used to measure fair value as follows:

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Level 1 Observable inputs that reflect quoted prices for identical assets or liabilities in active markets.

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Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

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Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

The carrying amounts of current assets and current liabilities approximate their fair value because of the relatively short period until they mature or are required to be settled, except for money market funds and the investment in BioTime and OncoCyte shares, which are carried at fair value based on Level 1 inputs, and warrant liability which is carried at fair value based on Level 3 inputs (see Note 6).
 
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