Employee Stock Plan

The Company is currently issuing stock awards under the Amended and Restated Digital Turbine, Inc. 2011 Equity Incentive Plan (the “2011 Plan”), which was approved and adopted by our stockholders by written consent on May 23, 2012. No future grants will be made under the previous plan, the 2007 Employee, Director and Consultant Stock Plan (the “2007 Plan”). In the year ended March 31, 2015, in connection with the acquisition of Appia, the Company assumed the Appia, Inc. 2008 Stock Incentive Plan (the “Appia Plan”). The 2011 Plan and 2007 Plan are collectively referred to as “Digital Turbine’s Incentive Plans.” Digital Turbine’s Incentive Plans and the Appia Plan are all collectively referred to as the “Stock Plans.”

The 2011 Plan provides for grants of stock-based incentive awards to our and our subsidiaries’ officers, employees, non-employee directors and consultants. Awards issued under the 2011 Plan can include stock options, stock appreciation rights (“SARs”), restricted stock and restricted stock units (sometimes referred to individually or collectively as “Awards”). Stock options may be either “incentive stock options” (“ISOs”), as defined in Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”), or non-qualified stock options (“NQSOs”).

The 2011 Plan reserves 20,000,000 shares for issuance, of which approximately 14,393,741 and 16,659,173 remained available for future grants as of March 31, 2015 and 2014, respectively. The 2011 Plan provides for grants of stock options, stock appreciation rights (“SARs”), restricted stock and restricted stock units (sometimes referred to individually or collectively as “Awards”) to our and our subsidiaries’ officers, employees, non-employee directors and consultants.

Stock Option Agreements

Stock options granted under the Company’s Incentive Plans typically vest over a three to four year period. These options, which are granted with option exercise prices equal to the fair market value of the Company’s common stock on the date of grant, generally expire up to ten years from the date of grant. In the year ended March 31, 2015, in connection the Appia acquisition, the Company exchanged stock options previously granted under the Appia Plan for options to purchase the shares of the Company’s common stock. These assumed Appia options typically vest over a period of four years and generally expire within ten years from the date of grant. Compensation expense for all stock options is recognized on a straight-line basis over the requisite service period.

Restricted Stock Awards

Awards of restricted stock may be either grants of restricted stock, restricted stock units, or performance-based restricted stock units that are issued at no cost to the recipient. For restricted stock units, legal ownership of the shares is not transferred to the employee until the units vest, which is generally over a three year period. The cost of these awards is determined using the fair market value of the Company’s common stock on the date of the grant. Compensation expense for restricted stock awards with a service condition is recognized on a straight-line basis over the requisite service period.

Stock Option Activity

The following table summarizes stock option activity for the Stock Plans during the years ended March 31, 2015 and 2014:

^{(a)In Fiscal 2014, Digital Turbine, Inc. did not convert or assume any options in connection with business acquisitions.}

In connection with the Appia acquisition, Digital Turbine, Inc. assumed approximately 246,000 stock options, with a weighted-average exercise price per share of $0.64.

Information about options outstanding and exercisable at March 31, 2015 is as follows:

Other information pertaining to stock options for the Stock Plans is as follows:

The weighted average grant-date fair value for the options granted during the fiscal years ended March 31, 2015 and 2014, was $3.44 and $3.33, respectively.

At March 31, 2015 and March 31, 2014, there was $1,135 and $885 of total unrecognized stock-based compensation expense, net of estimated forfeitures, related to unvested stock options expected to be recognized over a weighted-average period of 1.6 years and 1.9 years, respectively.

Valuation of Awards

For stock options granted under Digital Turbine’s Incentive Plans, Digital Turbine Inc. typically uses the Black-Scholes option pricing model to estimate the fair value of stock options at grant date. The Black-Scholes option pricing model incorporates various assumptions, including volatility, expected term risk-free interest rates, and dividend yields. The fair value of options assumed under the Appia Plan was estimated as of the March 6, 2015 closing date using the Black-Scholes option pricing model. The assumptions utilized in this model during Fiscal 2015 and Fiscal 2014 are presented below.

Expected volatility is based on a blend of implied and historical volatility of Digital Turbine's common stock over the most recent period commensurate with the estimated expected term of Digital Turbine’s stock options. Digital Turbine uses this blend of implied and historical volatility, as well as other economic data, because management believes such volatility is more representative of prospective trends. The expected term of an award is based on historical experience and on the terms and conditions of the stock awards granted to employees.

Total stock compensation expense for the Company’s equity plans, which includes both stock options and restricted stock is included in the following statements of operations components. Please see Note 13 regarding restricted stock: