1. Title of Derivative Security (Instr. 4) |
2. Date Exercisable and Expiration Date (Month/Day/Year) |
3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) |
4. Conversion or Exercise Price of Derivative Security |
5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5) |
6. Nature of Indirect Beneficial Ownership (Instr. 5) |
Date Exercisable |
Expiration Date |
Title |
Amount or Number of Shares |
Stock Option (right to buy)
|
Â
(1)
|
12/09/2018 |
Common Stock
|
20,000
|
$
9.67
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(2)
|
09/09/2019 |
Common Stock
|
10,000
|
$
14.41
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(3)
|
09/08/2020 |
Common Stock
|
20,000
|
$
26.71
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(4)
|
09/13/2021 |
Common Stock
|
7,500
|
$
69.96
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(5)
|
05/10/2022 |
Common Stock
|
4,636
|
$
86.06
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(6)
|
03/19/2023 |
Common Stock
|
6,519
|
$
74.91
|
D
|
Â
|
* |
If the form is filed by more than one reporting person, see Instruction 5(b)(v). |
** |
Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). |
(1) |
The options, representing an initial right to purchase a total of 80,000 shares, vested 25% on each anniversary date of the 12/09/2008 grant date. |
(2) |
The options, representing an initial right to purchase a total of 40,000 shares, vest 25% on each anniversary date of the 09/09/2009 grant date. |
(3) |
The options, representing an initial right to purchase a total of 40,000 shares, vest 25% on each anniversary date of the 09/08/2010 grant date. |
(4) |
The options, representing an initial right to purchase a total of 10,000 shares, vest 25% on each anniversary date of the 09/13/2011 grant date. |
(5) |
The options, representing an initial right to purchase a total of 4,636 shares, vest 25% on each anniversary date of the 03/23/2012 vesting date. |
(6) |
The options, representing an initial right to purchase a total of 6,519 shares, vest 25% on each anniversary date of the 03/19/2013 grant date. |