Bureau Of National Affairs Inc (NONE)

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Insider Trading: Purchases

Insider	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
Ambrosini	$16.00	2,188	Officer	9,489	2010-03-20	Filing
Blakely	$16.00	81	Officer, Director	33,106	2010-03-20	Filing
Mckewen	$16.00	793	Director	10,075	2010-03-20	Filing
Wojcik	$16.00	3,290	Officer, Director	139,808	2010-03-20	Filing
Clark	$16.00	797	Officer	25,496	2010-03-20	Filing
Kaplan	$16.00	2,835	Director	196,707	2010-03-20	Filing
Mccaffery	$16.00	1,031	Officer, Director	102,842	2010-03-20	Filing
Ambrosini	$15.75	12	Officer	912	2009-10-01	Filing
Ambrosini	$15.75	415	Officer	912	2009-09-19	Filing
Ambrosini	$15.75	6	Officer	912	2009-04-02	Filing
Ambrosini	$15.75	479	Officer	912	2009-03-21	Filing
Blakely	$15.75	370	Officer, Director	28,113	2009-10-01	Filing
Blakely	$15.75	772	Officer, Director	28,113	2009-09-19	Filing
Blakely	$15.75	338	Officer, Director	28,113	2009-04-02	Filing
Blakely	$15.75	690	Officer, Director	28,113	2009-03-21	Filing
Bolbach	$15.75	587	Officer, Director	44,620	2009-10-01	Filing
Bolbach	$15.75	664	Officer, Director	44,620	2009-09-19	Filing
Bolbach	$15.75	544	Officer, Director	44,620	2009-04-02	Filing
Bolbach	$15.75	646	Officer, Director	44,620	2009-03-21	Filing
Bumgardner	$15.75	271	Officer, Director	20,525	2009-10-01	Filing