Ambrosini Robert P

USNatural personCFO

Transactions

Issuers

Buys / Sells

15/0

Last tx

29 Sept 2011

USNatural personCFO

Transactions

Issuers

Buys / Sells

15/0

Last tx

29 Sept 2011

Current positions

Holdings derived from the most recent reported transactions. Not adjusted for stock splits or share-class conversions.

Issuer	Shares	Source	Last tx	Detail
BUREAU OF NATIONAL AFFAIRS INC	0	reported	29 Sept 2011	tx 17+14,354−13,541

Recent transactions

Date	Type	Issuer	Qty	Price
29 Sept 2011	TENDER	BUREAU OF NATIONAL AFFAIRS INC	2,155	39.50 USD
29 Sept 2011	TENDER	BUREAU OF NATIONAL AFFAIRS INC	11,386	39.50 USD
19 Mar 2011	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	685	17.50 USD
30 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	24	16.50 USD
18 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	394	16.50 USD
01 Apr 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	17	16.00 USD
20 Mar 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	409	16.00 USD
18 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	1,212	16.50 USD
18 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	1,212	16.50 USD
20 Mar 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	2,188	16.00 USD
01 Oct 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	12	15.75 USD
21 Mar 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	479	15.75 USD
02 Apr 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	6	15.75 USD
19 Sept 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	415	15.75 USD
19 Sept 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	2,222	15.75 USD
21 Mar 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	3,175	15.75 USD
20 Sept 2008	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	1,904	15.75 USD

Current positions

Holdings derived from the most recent reported transactions. Not adjusted for stock splits or share-class conversions.

Issuer	Shares	Source	Last tx	Detail
BUREAU OF NATIONAL AFFAIRS INC	0	reported	29 Sept 2011	tx 17+14,354−13,541

Recent transactions

Date	Type	Issuer	Qty	Price
29 Sept 2011	TENDER	BUREAU OF NATIONAL AFFAIRS INC	2,155	39.50 USD
29 Sept 2011	TENDER	BUREAU OF NATIONAL AFFAIRS INC	11,386	39.50 USD
19 Mar 2011	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	685	17.50 USD
30 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	24	16.50 USD
18 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	394	16.50 USD
01 Apr 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	17	16.00 USD
20 Mar 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	409	16.00 USD
18 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	1,212	16.50 USD
18 Sept 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	1,212	16.50 USD
20 Mar 2010	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	2,188	16.00 USD
01 Oct 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	12	15.75 USD
21 Mar 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	479	15.75 USD
02 Apr 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	6	15.75 USD
19 Sept 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	415	15.75 USD
19 Sept 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	2,222	15.75 USD
21 Mar 2009	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	3,175	15.75 USD
20 Sept 2008	PURCHASE	BUREAU OF NATIONAL AFFAIRS INC	1,904	15.75 USD