| Schedule of Activity Related to Stock Options Awards, Restricted Stock Awards and Director Plan Restricted Stock Awards |
The following tables presents activity during the years ended December 31, 2019, 2018 and 2017 related to stock option awards and restricted stock awards.
|
|
|
Shares Subject to Stock Option Awards |
|
|
|
|
Year to Date Ended December 31, |
|
|
|
|
2019 |
|
|
2018 |
|
|
2017 |
|
|
|
|
Avg wtd |
|
|
Avg wtd |
|
|
|
|
|
|
Avg wtd |
|
|
Avg wtd |
|
|
|
|
|
|
Avg wtd |
|
|
Avg wtd |
|
|
|
|
|
|
|
|
grant-date |
|
|
exercise |
|
|
|
|
|
|
grant-date |
|
|
exercise |
|
|
|
|
|
|
grant-date |
|
|
exercise |
|
|
|
|
|
|
|
|
fair value |
|
|
price |
|
|
Units |
|
|
fair value |
|
|
price |
|
|
Units |
|
|
fair value |
|
|
price |
|
|
Units |
|
|
Outstanding at beginning of period |
|
$ |
|
3.79 |
|
|
$ |
|
6.12 |
|
|
|
9,070,052 |
|
|
$ |
|
3.66 |
|
|
$ |
|
5.71 |
|
|
|
9,078,728 |
|
|
$ |
|
3.40 |
|
|
$ |
|
4.90 |
|
|
|
8,669,475 |
|
|
Granted |
|
|
|
7.25 |
|
|
|
|
17.64 |
|
|
|
31,178 |
|
|
|
|
6.51 |
|
|
|
|
14.25 |
|
|
|
359,618 |
|
|
|
|
6.14 |
|
|
|
|
13.52 |
|
|
|
774,357 |
|
|
Forfeited |
|
|
|
5.01 |
|
|
|
|
9.68 |
|
|
|
(274,774 |
) |
|
|
|
6.39 |
|
|
|
|
14.00 |
|
|
|
(16,791 |
) |
|
|
|
3.02 |
|
|
|
|
3.81 |
|
|
|
(132,972 |
) |
|
Exercised |
|
|
|
3.19 |
|
|
|
|
4.24 |
|
|
|
(946,289 |
) |
|
|
|
3.01 |
|
|
|
|
3.56 |
|
|
|
(351,503 |
) |
|
|
|
2.54 |
|
|
|
|
2.45 |
|
|
|
(73,406 |
) |
|
Modified to liability to be cash settled |
|
|
|
— |
|
|
|
|
— |
|
|
|
— |
|
|
|
|
— |
|
|
|
|
— |
|
|
|
— |
|
|
|
|
2.61 |
|
|
|
|
2.62 |
|
|
|
(158,726 |
) |
|
Outstanding at end of the period |
|
$ |
|
3.83 |
|
|
$ |
|
6.27 |
|
|
|
7,880,167 |
|
|
$ |
|
3.79 |
|
|
$ |
|
6.12 |
|
|
|
9,070,052 |
|
|
$ |
|
3.66 |
|
|
$ |
|
5.71 |
|
|
|
9,078,728 |
|
|
Vested |
|
$ |
|
3.61 |
|
|
$ |
|
5.59 |
|
|
|
6,724,030 |
|
|
$ |
|
3.35 |
|
|
$ |
|
4.76 |
|
|
|
6,653,228 |
|
|
$ |
|
3.17 |
|
|
$ |
|
4.19 |
|
|
|
5,731,647 |
|
|
Unvested |
|
|
|
5.10 |
|
|
|
|
10.25 |
|
|
|
1,156,137 |
|
|
|
|
5.00 |
|
|
|
|
9.88 |
|
|
|
2,416,824 |
|
|
|
|
4.49 |
|
|
|
|
8.31 |
|
|
|
3,347,081 |
|
Total intrinsic value of stock options exercised in 2019, 2018 and 2017 was $12.8 million, $2.3 million and $0.8 million, respectively.
|
|
|
Restricted Stock Awards |
|
|
|
|
For Year Ended December 31, |
|
|
|
|
2019 |
|
|
2018 |
|
|
2017 |
|
|
|
|
Avg wtd |
|
|
|
|
|
|
Avg wtd |
|
|
|
|
|
|
Avg wtd |
|
|
|
|
|
|
|
|
fair value |
|
|
Units |
|
|
fair value |
|
|
Units |
|
|
fair value |
|
|
Units |
|
|
Unvested at beginning of period |
|
$ |
|
13.17 |
|
|
|
2,997,856 |
|
|
$ |
|
11.82 |
|
|
|
1,293,107 |
|
|
$ |
|
9.48 |
|
|
|
1,018,228 |
|
|
Granted |
|
|
|
16.27 |
|
|
|
1,196,820 |
|
|
|
|
13.77 |
|
|
|
1,924,691 |
|
|
|
|
13.52 |
|
|
|
623,165 |
|
|
Vested |
|
|
|
12.83 |
|
|
|
(521,701 |
) |
|
|
|
10.42 |
|
|
|
(217,630 |
) |
|
|
|
7.99 |
|
|
|
(339,701 |
) |
|
Forfeited |
|
|
|
13.42 |
|
|
|
(457,356 |
) |
|
|
|
14.27 |
|
|
|
(2,312 |
) |
|
|
|
8.81 |
|
|
|
(8,585 |
) |
|
Unvested at end of period |
|
$ |
|
14.29 |
|
|
|
3,215,619 |
|
|
$ |
|
13.17 |
|
|
|
2,997,856 |
|
|
$ |
|
11.82 |
|
|
|
1,293,107 |
|
|
|
|
Director Plan Restricted Stock Awards |
|
|
|
|
For Year Ended December 31, |
|
|
|
|
2019 |
|
|
2018 |
|
|
2017 |
|
|
|
|
Avg wtd |
|
|
|
|
|
|
Avg wtd |
|
|
|
|
|
|
Avg wtd |
|
|
|
|
|
|
|
|
fair value |
|
|
Units |
|
|
fair value |
|
|
Units |
|
|
fair value |
|
|
Units |
|
|
Unvested at beginning of period |
|
$ |
|
— |
|
|
|
— |
|
|
$ |
|
— |
|
|
|
— |
|
|
$ |
|
5.71 |
|
|
|
49,230 |
|
|
Granted |
|
|
|
— |
|
|
|
— |
|
|
|
|
— |
|
|
|
— |
|
|
|
|
— |
|
|
|
— |
|
|
Vested |
|
|
|
— |
|
|
|
— |
|
|
|
|
— |
|
|
|
— |
|
|
|
|
5.71 |
|
|
|
(49,230 |
) |
|
Forfeited |
|
|
|
— |
|
|
|
— |
|
|
|
|
— |
|
|
|
— |
|
|
|
|
— |
|
|
|
— |
|
|
Unvested at end of period |
|
$ |
|
— |
|
|
|
— |
|
|
$ |
|
— |
|
|
|
— |
|
|
$ |
|
5.71 |
|
|
|
— |
|
|