Movements in the number of options outstanding under the 2006 Incentive Award Plan and their related weighted average exercise prices are as follow:
| Shares | Weighted average exercise price |
Weighted average remaining contract term (in years) |
Aggregate intrinsic value |
|||||||||||||
|
Outstanding as at March 31, 2016 |
739,618 | $ | 23.34 | 0.54 | $ | 5,419 | ||||||||||
|
Exercised |
(425,941 | ) | 10.52 | |||||||||||||
|
Lapsed |
(196,498 | ) | 13.44 | |||||||||||||
|
|
|
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|
Outstanding as at March 31, 2017 |
117,179 | $ | 27.25 | 0.10 | $ | 163 | ||||||||||
|
Exercised |
(48,227 | ) | 7.63 | |||||||||||||
|
Lapsed |
(68,952 | ) | 7.87 | |||||||||||||
|
|
|
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|
Outstanding as at March 31, 2018 |
— | — | — | — | ||||||||||||
|
Options exercisable |
— | $ | — | — | $ | — | ||||||||||