(11) Common Stock Incentive, Stock Purchase Plans, and Other Compensation Plans

2008 Stock Incentive Plan (“2008 Plan”)

The 2008 Plan was created to promote growth of the Company by aligning the long-term financial success of the Company with the employees, directors, and consultants. At the time of approval, 1,100,000 shares of Astrotech’s common stock were reserved for issuance under this plan. The 2008 Plan, administered by the Compensation Committee of the Board of Directors, provides for granting of incentive awards in the form of stock options, stock appreciation rights (“SARs”), and restricted stock to employees, directors, and consultants of the Company. As of June 30, 2018, there were 0 shares available for grant under the 2008 Plan.

2011 Stock Incentive Plan (“2011 Plan”)

The 2011 Plan was designed to increase shareholder value by compensating employees over the long term. The plan is to be used to promote long-term financial success and execution of the Company’s business strategy. At the time of approval, 350,000 shares of Astrotech’s common stock were reserved for issuance under this plan. On June 26, 2014, an additional 400,000 shares of Astrotech’s common stock were approved for issuance under this plan. On December 7, 2017, an additional 225,000 shares of Astrotech’s common stock were approved for issuance under this plan. The 2011 Plan, administered by the Compensation Committee of the Board of Directors, provides for granting of incentive awards in the form of stock, stock options, SARs, and restricted stock to employees, directors, and consultants of the Company. As of June 30, 2018, there were 243,677 shares available for grant under the 2011 Plan.

Stock Option Activity Summary

The Company’s stock option activity for the years ended June 30, 2018 and 2017 was as follows:

	Shares (In thousands)			Weighted Average Exercise Price
Outstanding at June 30, 2016		191		$	5.90
Granted		185			6.15
Exercised		(9	)		1.95
Canceled or expired		(2	)		15.05
Outstanding at June 30, 2017		365		$	6.25
Granted		—			—
Exercised		—			—
Canceled or expired		(4	)		5.30
Outstanding at June 30, 2018		361		$	5.48

The aggregate intrinsic value of options exercisable at June 30, 2018 was $29 thousand as the fair value of the Company’s common stock is more than the exercise prices of these options. The aggregate intrinsic value of all options outstanding at June 30, 2018 was $29 thousand.

Range of exercise prices	Number Outstanding		Options Outstanding Weighted- Average Remaining Contractual Life (years)		Weighted- Average Exercise Price		Number Exercisable		Options Exercisable Weighted- Average Exercise Price
$1.60 – 3.55		93,950		3.13	$	3.06		93,950	$	3.06
$5.30 – 8.35		266,578		7.66		6.30		128,616		6.22
$16.00 – 16.00		600		6.78		16.00		600		16.00
$1.60 – 16.00		361,128		6.48	$	5.48		223,166	$	4.92

Compensation costs recognized related to vested stock option awards during the years ended June 30, 2018 and 2017 were $0.3 million and $0.1 million, respectively. At June 30, 2018, there was $0.4 million of total unrecognized compensation cost related to non-vested stock option awards, which is expected to be recognized over a weighted average period of 1.9 years.

Restricted Stock

The Company’s restricted stock activity for the years ended June 30, 2018 and 2017, was as follows:

	Shares (In thousands)			Weighted Average Grant-Date Fair Value
Outstanding at June 30, 2016		31		$	15.70
Granted		52			8.65
Exercised		(15	)		15.85
Canceled or expired		(12	)		11.90
Outstanding at June 30, 2017		56		$	9.95
Granted		—			—
Exercised		(16	)		13.37
Canceled or expired		(12	)		8.35
Outstanding at June 30, 2018		28		$	10.16

Compensation costs recognized related to vested restricted stock awards during the years ended June 30, 2018 and 2017 were $0.2 million and $1.0 million, respectively. At June 30, 2018, there was $0.1 million of unrecognized compensation cost related to restricted stock, which is expected to be recognized over a weighted average period of 1.2 years.

Fair Value of Stock-Based Compensation

Stock-based compensation costs are generally based on the fair value calculated from the Black-Scholes model on the date of grant of stock options. The fair values of stock options are amortized as compensation expense on a straight-line basis over the vesting period of the grants. The Company recognizes forfeitures as they occur. The assumptions used for the years ended June 30, 2018 and 2017 and the resulting estimates of weighted-average fair value per share of options granted or modified are summarized in the following table:

	Year Ended June 30, 2018			Year Ended June 30, 2017
Expected Dividend Yield	—			—
Expected Volatility		113	%		124	%
Risk-Free Interest Rates		2.86	%		2.42	%
Expected Option Life (in years)		3.50			6.61
Weighted-average grant-date fair value of options awarded	$	2.83		$	6.15

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The expected dividend yield is based on the Company’s current dividend yield and the best estimate of projected dividend yield for future periods within the expected life of the option, which is currently 0%.

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The Company estimated volatility using the historical share price performance over the expected life. Management believes the historical estimated volatility is materially indicative of expectations about future volatility.

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The estimate of the risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant.

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For the years ended June 30, 2018 and June 30, 2017, the Company used the simplified method of calculating the expected life of the options.

Securities Repurchase Program

On December 16, 2014, the Board of Directors amended the share repurchase program to allow for the repurchase of up to $5.0 million more treasury shares until December 31, 2015. On December 3, 2015, the Board authorized an extension of the share repurchase program through December 31, 2016. The share repurchase program ended as of December 31, 2016. At the conclusion of the share repurchase program, the Company had repurchased 37,727 shares of common stock at a cost of $492 thousand, which represents an average cost of $13.04 per share.

Shares Repurchased from Related Parties

In August 2016, the Company repurchased 38,400 shares issued to the Chief Financial Officer and the Chief Operating Officer related to their tax withholding obligations at a cost of $308 thousand which represents an average price of $8.02 per share. In December 2016, the Company repurchased 120,370 shares from the Chief Executive Officer at a cost of $975 thousand, which represents an average cost of $8.10 per share.