BOSTON SCIENTIFIC CORP

Ticker: BSX CUSIP: 101137107 Class: COM

Spark Investment Management LLC's Holding History (CIK: 0001554871)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013

Shares 96,200 Value ($000) $1,156 Avg Close $11.81 Range $11.12 - $12.48

Q3 2013

Shares 96,200 Value ($000) $1,129 Avg Close $10.82 Range $9.05 - $12.16

Q2 2013

Shares 156,700 Value ($000) $1,452 Avg Close $8.48 Range $7.07 - $9.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	96,200	$1,156	$11.81	$11.12 - $12.48
Q3 2013	96,200	$1,129	$10.82	$9.05 - $12.16
Q2 2013	156,700	$1,452	$8.48	$7.07 - $9.75