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11. Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Stock-Based Compensation Tables

Schedule of options granted under employee stock plans

		Shares Available for Grant				Number of Shares Outstanding				Weighted-Average Exercise Price

Balance as of December 31, 2012			161				752			$	5.90
Authorized			100				—				—
Granted			(288	)			288				5.80
Exercised			—				(26	)			3.30
Forfeited/expired			101				(101	)			15.31
Balance as of December 31, 2013			74				913			$	4.90
Authorized			100				—				—
Granted			(247	)			247				4.38
Exercised			—				(156	)			1.69
Forfeited/expired			78				(78)				2.71
Balance as of December 31, 2014			5				926			$	5.52

Schedule of weighted average fair value calculations for options

		Number of Shares				Weighted Average Exercise Price				Remaining Contractual Term (In Years)				Average Intrinsic Value1
2014
Vested			559			$	5.89				2.41			$	772
Unvested			367				4.95				3.87				356
Total			926			$	5.52				2.99			$	1,128

2013
Vested			516			$	4.40				1.77			$	523
Unvested			397				5.70				4.11				9
Total			913			$	4.90				2.79			$	532

(1) Intrinsic value calculation based on the $5.79 and $3.20 closing price of Aemetis stock on December 31, 2014 and 2013, as reported on the NASDAQ exchange and Over the Counter Bulletin Board respectively.

Schedule of Outside Company Stock Plan

		Number of Shares				Weighted Average Exercise Price				Remaining Contractual Term (In Years)				Average Intrinsic Value2
2014
Vested			89			$	5.50				2.85			$	26
Unvested			-				-				-				-
Total			89			$	5.50				2.85			$	-

2013
Vested			69			$	5.50				3.85			$	-
Unvested			29				5.50				3.85				-
Total			98			$	5.50				3.85			$	-

Schedule of assumptions for weighted-average fair value calculations for options granted

		For the year ended December 31
		2014				2013				2012
Dividend-yield			0	%			0	%			0	%
Risk-free interest rate			0. 74 - 1.10	%			0.42 - 0.63	%			0.28 - 0.38	%
Expected volatility			77.00 - 78.43	%			73.20 - 75.55	%			79.08	%
Expected life (years)			3				3				2 - 3
Market value per share on grant date		$	4.20 - $ 4.66			$	4.00 to $6.50			$	5.50
Weighted average fair value per share on grant date		$	2.14 - $2.35			$	1.92 - $3.19			$	2.34 - $2.80

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

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