	CUSIP NO. 090572207

1.	NAMES OF REPORTING PERSONS

	John A. Levin
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
		(a) [ ][ ]
		(b) [ ][ ]
3.	SEC USE ONLY


4.	SOURCE OF FUNDS

	PF, OO, AF
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)

		[ ][ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION

	United States of America
	7	SOLE VOTING POWER

NUMBER OF		259,324
SHARES	8	SHARED VOTING POWER
BENEFICIALLY
OWNED BY		3,467,421
EACH	9	SOLE DISPOSITIVE POWER
REPORTING
PERSON WITH		259,324
	10.	SHARED DISPOSITIVE POWER

		3,848,242
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	4,056,731
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

		[ ][ ]
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

	4.9%
14.	TYPE OF REPORTING PERSON

	IN