| 2011-09-29 | BUREAU OF NATIONAL AFFAIRS INC | U | −7,216 sh | $39.50 | −$285K | 0 |
| 2011-09-29 | BUREAU OF NATIONAL AFFAIRS INC | U | −32.6K sh | $39.50 | −$1.29M | 0 |
| 2011-04-29 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−350 sh | $17.50 | ▼−$6,125 | 7,216 |
| 2011-03-19 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+6 sh | $17.50 | ▲+$105 | 7,566 |
| 2011-01-12 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼+250 sh | $16.50 | ▼+$4,125 | 7,560 |
| 2010-11-02 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−300 sh | $16.50 | ▼−$4,950 | 7,810 |
| 2010-10-26 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−300 sh | $16.50 | ▼−$4,950 | 8,110 |
| 2010-09-30 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+436 sh | $16.50 | ▲+$7,194 | 31,727 |
| 2010-09-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+48 sh | $16.50 | ▲+$792 | 8,410 |
| 2010-09-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+49 sh | $16.50 | ▲+$808.5 | 31,727 |
| 2010-07-26 | BUREAU OF NATIONAL AFFAIRS INC | D | −87 sh | $16.00 | −$1,392 | 31,727 |
| 2010-07-02 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−300 sh | $16.00 | ▼−$4,800 | 8,362 |
| 2010-06-04 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−270 sh | $16.00 | ▼−$4,320 | 8,662 |
| 2010-04-01 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+406 sh | $16.00 | ▲+$6,496 | 31,727 |
| 2010-03-20 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+454 sh | $16.00 | ▲+$7,264 | 31,727 |
| 2009-10-01 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+401 sh | $15.75 | ▲+$6,315.75 | 30,469 |
| 2009-09-25 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−315 sh | $15.75 | ▼−$4,961.25 | 8,932 |
| 2009-09-19 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+532 sh | $15.75 | ▲+$8,379 | 30,469 |
| 2009-04-02 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+370 sh | $15.75 | ▲+$5,827.5 | 30,469 |
| 2009-03-21 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+83 sh | $15.75 | ▲+$1,307.25 | 9,562 |
| 2009-03-21 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+674 sh | $15.75 | ▲+$10.6K | 30,469 |
| 2007-12-31 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+316 sh | $15.00 | ▲+$4,740 | 26,603 |
| 2007-10-01 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−330 sh | $15.00 | ▼−$4,950 | 8,305 |
| 2007-09-28 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−330 sh | $15.00 | ▼−$4,950 | 8,635 |
| 2007-09-18 | BUREAU OF NATIONAL AFFAIRS INC | S | ▼−330 sh | $15.00 | ▼−$4,950 | 8,965 |
| 2007-09-15 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+426 sh | $14.75 | ▲+$6,283.5 | 26,603 |
| 2007-03-17 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+171 sh | $14.00 | ▲+$2,394 | 26,603 |
| 2006-12-23 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+1,168 sh | $13.75 | ▲+$16.1K | 25,690 |
| 2006-03-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+296 sh | $13.00 | ▲+$3,848 | 25,690 |
| 2004-12-31 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+292 sh | $12.00 | ▲+$3,504 | 22,188 |
| 2004-09-18 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+948 sh | $11.75 | ▲+$11.1K | 22,188 |
| 2004-03-20 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+667 sh | $11.25 | ▲+$7,503.75 | 22,188 |
| 2003-12-31 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+615 sh | $11.25 | ▲+$6,918.75 | 20,281 |
| 2003-09-20 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+885 sh | $11.00 | ▲+$9,735 | 20,281 |
| 2003-03-22 | BUREAU OF NATIONAL AFFAIRS INC | P | ▲+1,985 sh | $10.50 | ▲+$20.8K | 20,281 |