| 20 juin 2012 | OTHER | Willbros Group, Inc.\NEW\ | 13 636 | 0.00 USD | |
| 24 mai 2012 | GRANT_AWARD | Willbros Group, Inc.\NEW\ | 13 636 | 0.00 USD | |
| 24 mai 2011 | GRANT_AWARD | Willbros Group, Inc.\NEW\ | 8 371 | 0.00 USD | |
| 01 janv. 2010 | GRANT_AWARD | Willbros Group, Inc.\NEW\ | 1 515 | 16.87 USD | |
| 29 oct. 2009 | GRANT_AWARD | Willbros Group, Inc.\NEW\ | 1 678 | 15.23 USD | |
| 23 juin 2008 | GRANT_AWARD | Willbros Group, Inc.\NEW\ | 25 000 | 0.00 USD | |
| 12 mars 2009 | GRANT_AWARD | WILLBROS GROUP INC | 10 000 | 0.00 USD | |
| 12 mars 2009 | GRANT_AWARD | Willbros Group, Inc.\NEW\ | 10 000 | 0.00 USD | |
| 14 nov. 2008 | PURCHASE | WILLBROS GROUP INC | 115 000 | 8.64 USD | |
| 07 oct. 2008 | PURCHASE | WILLBROS GROUP INC | 30 200 | 16.31 USD | |
| 07 oct. 2008 | PURCHASE | WILLBROS GROUP INC | 29 800 | 15.49 USD | |
| 06 oct. 2008 | PURCHASE | WILLBROS GROUP INC | 61 000 | 16.34 USD | |