6. Stock-Based Compensation

Performance-Contingent RSAs and RSUs

Since 2011, the Compensation Committee of our Board of Directors (the “Compensation Committee”) have approved grants of performance-contingent RSAs and RSUs to senior management and a non-executive officer. Generally, these awards have dual triggers of vesting based upon the achievement of certain performance goals by a pre-specified date, as well as a requirement for continued employment. Recognition of stock-based compensation expense begins when the performance goals are deemed probable of achievement.

Included in these performance-contingent RSAs is the grant of 1,290,000 special long-term retention and incentive performance-contingent RSAs to senior management in 2011. The awards have dual triggers of vesting based upon the achievement of certain performance conditions over a six-year timeframe from 2011 through December 31, 2016 and require continued employment. In connection with the Spin-Off, our Compensation Committee approved the modification of the remaining tranches related to these awards as the performance conditions associated with the remaining portions of these awards were unlikely to be consistent with the new strategies of each company following the Spin-Off. The remaining 63,135 RSAs for which service-based vesting was not triggered at the time of the Spin-Off remain subject to new performance conditions (as well as the original service conditions). In addition, the RSAs for which both the performance and service-based conditions were not achieved prior to the Spin-Off were entitled to the pro rata dividend distribution made by Innoviva on June 2, 2014 of one ordinary share of Theravance Biopharma for every 3.5 shares of Innoviva common stock subject to their awards, which will also be subject to the same new performance and service conditions as the original RSAs to which they relate. As of June 30, 2016, we determined that the achievement of the requisite performance conditions was probable and, as a result, $1.2 million compensation cost was recognized for the remaining equity awards.

On January 14, 2016, the Compensation Committee approved and granted 282,394 RSAs and 46,294 RSUs to senior management. These awards include a market condition based on Relative Total Shareholder Return (“TSR”) and a service condition that requires continued employment, collectively the “Performance Measures”. The vesting percentages of these awards are calculated based on the two-year TSR with a catch-up provision opportunity measured on January 13, 2019 for RSAs and on September 30, 2018 for RSUs. Two-thirds of amounts earned at the end of year two will vest and be distributed on February 20, 2018, while the final one-third earned after two years as well as the catch up amount earned will vest and be distributed on February 20, 2019 for RSAs and November 20, 2018 for RSUs. The actual payout of shares may range from a minimum of zero shares to a maximum of 328,688 shares granted upon the actual performance against the Performance Measures. The grant date fair value of these awards is determined using a Monte Carlo valuation model. The aggregate value of $2.0 million is recognized as compensation expense over the implied service period and will not be reversed if the market condition is not met.

Stock-Based Compensation Expense

Stock-based compensation expense is included in the condensed consolidated statements of operations as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2016		2015		2016		2015
Research and development	$	172	$	232	$	347	$	467
General and administrative	2,669		1,590		4,358		3,288

Total stock-based compensation	$	2,841	$	1,822	$	4,705	$	3,755

As of June 30, 2016, unrecognized compensation expense, net of expected forfeitures for awards expected to vest, including the market based awards was as follows: $1.2 million related to unvested stock options; $2.0 million related to unvested RSUs; and $11.3 million related to unvested RSAs.

At the time of the Spin-Off, all outstanding stock options, RSUs and RSAs held by former employees and directors, who transferred to Theravance Biopharma, were retained by them. As the vesting of these options and awards is based on continuing employment or service with Theravance Biopharma, all stock-based compensation expense associated with these options and awards is recognized by Theravance Biopharma.