Bureau Of National Affairs Inc (NONE)

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Insider Trading: Purchases

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Ambrosini Officer	$16.00	2,188	$35,008.00	9,489	2010-03-20	Filing
Blakely Officer, Director	$16.00	81	$1,296.00	33,106	2010-03-20	Filing
Mckewen Director	$16.00	793	$12,688.00	10,075	2010-03-20	Filing
Wojcik Officer, Director	$16.00	3,290	$52,640.00	139,808	2010-03-20	Filing
Clark Officer	$16.00	797	$12,752.00	25,496	2010-03-20	Filing
Kaplan Director	$16.00	2,835	$45,360.00	196,707	2010-03-20	Filing
Mccaffery Officer, Director	$16.00	1,031	$16,496.00	102,842	2010-03-20	Filing
Ambrosini Officer	$15.75	12	$189.00	912	2009-10-01	Filing
Ambrosini Officer	$15.75	415	$6,536.25	912	2009-09-19	Filing
Ambrosini Officer	$15.75	6	$94.50	912	2009-04-02	Filing
Ambrosini Officer	$15.75	479	$7,544.25	912	2009-03-21	Filing
Blakely Officer, Director	$15.75	370	$5,827.50	28,113	2009-10-01	Filing
Blakely Officer, Director	$15.75	772	$12,159.00	28,113	2009-09-19	Filing
Blakely Officer, Director	$15.75	338	$5,323.50	28,113	2009-04-02	Filing
Blakely Officer, Director	$15.75	690	$10,867.50	28,113	2009-03-21	Filing
Bolbach Officer, Director	$15.75	587	$9,245.25	44,620	2009-10-01	Filing
Bolbach Officer, Director	$15.75	664	$10,458.00	44,620	2009-09-19	Filing
Bolbach Officer, Director	$15.75	544	$8,568.00	44,620	2009-04-02	Filing
Bolbach Officer, Director	$15.75	646	$10,174.50	44,620	2009-03-21	Filing
Bumgardner Officer, Director	$15.75	271	$4,268.25	20,525	2009-10-01	Filing