Insider Transactions

Corporate Governance
Transaction Date Filer Title Filing Transaction Type Shares Traded Price Total Held*
Dec 19, 2005 Director, Chief Executive Officer Form 4 Other acquisition or disposition (describe transaction) 95,502 -- 277,590
Dec 19, 2005 Director, Chief Executive Officer Form 4 Other acquisition or disposition (describe transaction) 95,502 -- 95,502
Dec 19, 2005 Director, Chief Executive Officer Form 4/A Other acquisition or disposition (describe transaction) 95,502 -- 277,590
Dec 19, 2005 Director, Chief Executive Officer Form 4/A Other acquisition or disposition (describe transaction) 95,502 -- 95,502
Dec 12, 2005 Corporate Vice President Form 4 Open market or private sale of non-derivative or derivative security 1,800 $58.45 68,293
Dec 12, 2005 Corporate Vice President Form 4 Open market or private sale of non-derivative or derivative security 200 $58.47 68,093
Nov 11, 2005 Corporate Vice President Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 10,000 $47.11 100,000
Nov 11, 2005 Corporate Vice President Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 11,250 $52.48 111,250
Nov 11, 2005 Corporate Vice President Form 4 Open market or private sale of non-derivative or derivative security 100 $55.54 111,150
Nov 11, 2005 Corporate Vice President Form 4 Open market or private sale of non-derivative or derivative security 6,600 $55.50 104,550

* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.

Investor Contact

Phone: 703-280-2268
Email: investors@ngc.com