v3.8.0.1

Stock incentive plans (Tables) | 3 Months Ended
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Mar. 31, 2018
Stock incentive plans |
Schedule of stock-based compensation expense |
|  | Three Months Ended March 31, |
|  | 2018 |  | 2017 |
Network operations |  | $ | 537 |  | $ | 546 |
Development and technology |  | 278 |  | 270 |
Selling and marketing |  | 473 |  | 426 |
General and administrative |  | 1,838 |  | 1,802 |
Total stock-based compensation expense |  | $ | 3,126 |  | $ | 3,044 |
Summary of stock option activity |
|  | Number of Options (000’s) |  | Weighted Average Exercise Price |  | Weighted- Average Remaining Contract Life (years) |  | Aggregate Intrinsic Value |
Outstanding at December 31, 2017 |  | 1,283 |  | $ | 9.58 |  | 3.8 |  | $ | 16,573 |
Exercised |  | (396 | ) | $ | 10.68 |  |  |  |  |
Canceled/forfeited |  | (7 | ) | $ | 5.99 |  |  |  |  |
Outstanding and exercisable at March 31, 2018 |  | 880 |  | $ | 9.12 |  | 3.6 |  | $ | 13,778 |
Summary of RSU activity |
|  | Number of Shares (000’s) |  | Weighted Average Grant-Date Fair Value |
Non-vested at December 31, 2017 |  | 3,324 |  | $ | 7.35 |
Granted(2) |  | 874 |  | $ | 12.18 |
Vested |  | (609 | ) | $ | 7.20 |
Canceled/forfeited |  | (33 | ) | $ | 12.55 |
Non-vested at March 31, 2018 |  | 3,556 |  | $ | 8.51 |
| (2) |  | The RSUs granted to all of our named executive officers in 2016 were subject to satisfaction of specified service-based and performance-based conditions. The performance objectives were subject to under- or over- achievement on a sliding scale, with a threshold of 50% of the target number of RSUs and a maximum of 150% of the target RSUs. In February 2018, our Compensation Committee determined actual achievement of the 2016 performance-based RSUs resulting in additional RSUs granted of approximately 520,000 at a grant-date fair value of $6.13 per share during the three months ended March 31, 2018.

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