| 2011-09-29 | BUREAU OF NATIONAL AFFAIRS INC | U | −44K sh | $39.50 | −$1.74M | 0 |
| 2011-09-29 | BUREAU OF NATIONAL AFFAIRS INC | U | −19.6K sh | $39.50 | −$776K | 0 |
| 2010-09-30 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+263 sh | $16.50 | ▲+$4,339.5 | 19,122 |
| 2010-09-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+275 sh | $16.50 | ▲+$4,537.5 | 19,122 |
| 2010-04-12 | BUREAU OF NATIONAL AFFAIRS INC | D | −2,500 sh | $16.00 | −$40K | 19,122 |
| 2010-04-01 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+273 sh | $16.00 | ▲+$4,368 | 19,122 |
| 2010-03-20 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+286 sh | $16.00 | ▲+$4,576 | 19,122 |
| 2009-10-01 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+271 sh | $15.75 | ▲+$4,268.25 | 20,525 |
| 2009-09-19 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+290 sh | $15.75 | ▲+$4,567.5 | 20,525 |
| 2009-04-02 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+251 sh | $15.75 | ▲+$3,953.25 | 20,525 |
| 2009-03-21 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+825 sh | $15.75 | ▲+$13K | 44,012 |
| 2009-03-21 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+291 sh | $15.75 | ▲+$4,583.25 | 20,525 |
| 2007-12-31 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+217 sh | $15.00 | ▲+$3,255 | 18,350 |
| 2007-09-15 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+521 sh | $14.75 | ▲+$7,684.75 | 18,350 |
| 2007-09-15 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+867 sh | $15.00 | ▲+$13K | 37,683 |
| 2007-03-17 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+143 sh | $14.00 | ▲+$2,002 | 18,350 |
| 2006-12-23 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+928 sh | $13.75 | ▲+$12.8K | 17,469 |
| 2006-12-23 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+1,454 sh | $13.75 | ▲+$20K | 36,409 |
| 2006-03-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+134 sh | $13.00 | ▲+$1,742 | 17,469 |
| 2006-03-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+4,846 sh | $13.00 | ▲+$63K | 34,955 |
| 2004-12-31 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+432 sh | $12.00 | ▲+$5,184 | 15,298 |
| 2004-09-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+664 sh | $11.75 | ▲+$7,802 | 26,714 |
| 2004-09-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+569 sh | $11.75 | ▲+$6,685.75 | 15,298 |
| 2004-03-20 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+156 sh | $11.25 | ▲+$1,755 | 15,298 |
| 2003-12-31 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+432 sh | $11.25 | ▲+$4,860 | 14,141 |
| 2003-09-20 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+709 sh | $11.00 | ▲+$7,799 | 25,357 |
| 2003-09-20 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+592 sh | $11.00 | ▲+$6,512 | 14,141 |
| 2003-03-22 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+200 sh | $10.50 | ▲+$2,100 | 14,141 |