| 21 mai 2014 | GRANT_AWARD | NORTHROP GRUMMAN CORP /DE/ | 154 | 118.26 USD | |
| 31 mars 2014 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 352 | 123.38 USD | |
| 31 déc. 2013 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 377 | 114.61 USD | |
| 19 déc. 2013 | OTHER | SIERRA PACIFIC RESOURCES /NV/ | 29 311 | 23.75 USD | |
| 30 sept. 2013 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 450 | 95.26 USD | |
| 30 juin 2013 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 514 | 82.80 USD | |
| 08 mai 2013 | GRANT_AWARD | SIERRA PACIFIC RESOURCES /NV/ | 3 579 | 20.95 USD | |
| 31 mars 2013 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 588 | 70.15 USD | |
| 31 déc. 2012 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 605 | 67.58 USD | |
| 30 sept. 2012 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 611 | 66.43 USD | |
| 30 juin 2012 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 631 | 63.79 USD | |
| 12 juin 2012 | SALE | SIERRA PACIFIC RESOURCES /NV/ | 0,84 | 17.19 USD | |
| 14 mai 2012 | GRANT_AWARD | SIERRA PACIFIC RESOURCES /NV/ | 4 380,84 | 17.12 USD | |
| 31 mars 2012 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 642 | 61.08 USD | |
| 31 déc. 2011 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 633 | 61.47 USD | |
| 30 sept. 2011 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 614 | 62.83 USD | |
| 30 juin 2011 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 605 | 69.35 USD | |
| 03 juin 2011 | SALE | SIERRA PACIFIC RESOURCES /NV/ | 0,8 | 15.31 USD | |
| 03 mai 2011 | GRANT_AWARD | SIERRA PACIFIC RESOURCES /NV/ | 5 025,8 | 14.92 USD | |
| 31 mars 2011 | GRANT_AWARD | NORTHROP GRUMMAN CORP /DE/ | 944 | 0.00 USD | |
| 31 mars 2011 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 560 | 62.71 USD | |
| 31 déc. 2010 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 567 | 64.78 USD | |
| 30 sept. 2010 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 585 | 60.63 USD | |
| 30 juin 2010 | OTHER | NORTHROP GRUMMAN CORP /DE/ | 606 | 54.44 USD | |
| 04 mai 2010 | GRANT_AWARD | SIERRA PACIFIC RESOURCES /NV/ | 5 994,73 | 12.51 USD | |