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)
|
08/07/2011 |
Registered Shares
|
39,548
|
$
7.38
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(1)
|
04/15/2013 |
Registered Shares
|
15,000
|
$
6.77
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(1)
|
03/31/2014 |
Registered Shares
|
160,000
|
$
7.76
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(2)
|
07/11/2014 |
Registered Shares
|
160,000
|
$
11.44
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(3)
|
09/25/2015 |
Registered Shares
|
100,000
|
$
20.25
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(4)
|
10/01/2016 |
Registered Shares
|
50,000
|
$
21.61
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(5)
|
04/01/2017 |
Registered Shares
|
50,000
|
$
27.95
|
D
|
Â
|
Stock Option (right to buy)
|
Â
(6)
|
10/01/2017 |
Registered Shares
|
50,000
|
$
30.09
|
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 option is fully vested and is exercisable in full. |
(2) |
The option is exercisable in four equal annual installments. The first installment became exercisable on July 12, 2005, the second installment became exercisable on July 12, 2006, the third installment became exercisable on July 12, 2007, and the final installment will become exercisable on July 12, 2008. |
(3) |
The option is exercisable in four equal annual installments. The first installment became exercisable on September 26, 2006, the second installment became exercisable on September 26, 2007, and the next two installments become exercisable on September 26, 2008 and September 26, 2009. |
(4) |
The option is exercisable in four equal annual installments. The first installment became exercisable on October 2, 2007, and the next three installments become exercisable on October 2, 2008, October 2, 2009 and October 2, 2010. |
(5) |
The option is exercisable in four equal annual installments. The four installments become exercisable on April 2, 2008, April 2, 2009, April 2, 2010 and April 2, 2011. |
(6) |
The option is exercisable in four equal annual installments. The four installments become exercisable on October 2, 2008, October 2, 2009, October 2, 2010 and October 2, 2011. |