| 29 Sept 2011 | TENDER | BUREAU OF NATIONAL AFFAIRS INC | 11,683 | 39.50 USD | |
| 29 Sept 2011 | TENDER | BUREAU OF NATIONAL AFFAIRS INC | 15,496 | 39.50 USD | |
| 19 Mar 2011 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 820 | 17.50 USD | |
| 20 Mar 2010 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 518 | 16.00 USD | |
| 01 Apr 2010 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 184 | 16.00 USD | |
| 26 Jul 2010 | OTHER | BUREAU OF NATIONAL AFFAIRS INC | 87 | 16.00 USD | |
| 30 Sept 2010 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 204 | 16.50 USD | |
| 18 Sept 2010 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 500 | 16.50 USD | |
| 18 Sept 2010 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 788 | 16.50 USD | |
| 20 Mar 2010 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 793 | 16.00 USD | |
| 02 Apr 2009 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 161 | 15.75 USD | |
| 01 Oct 2009 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 178 | 15.75 USD | |
| 21 Mar 2009 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 463 | 15.75 USD | |
| 19 Sept 2009 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 470 | 15.75 USD | |
| 19 Sept 2009 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 578 | 15.75 USD | |
| 21 Mar 2009 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 1,213 | 15.75 USD | |
| 02 Apr 2008 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 151 | 15.50 USD | |
| 15 Mar 2008 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 337 | 15.50 USD | |
| 02 Oct 2008 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 153 | 15.75 USD | |
| 18 Jun 2008 | OTHER | BUREAU OF NATIONAL AFFAIRS INC | 51 | 15.50 USD | |
| 20 Sept 2008 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 333 | 15.75 USD | |
| 20 Sept 2008 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 1,203 | 15.75 USD | |
| 15 Mar 2008 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 1,034 | 15.50 USD | |
| 15 Sept 2007 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 362 | 14.75 USD | |
| 17 Mar 2007 | PURCHASE | BUREAU OF NATIONAL AFFAIRS INC | 164 | 14.00 USD | |