BOSTON SCIENTIFIC CORP

Ticker: BSX CUSIP: 101137107 Class: COM

First Dallas Securities Inc.'s Holding History (CIK: 0001378559)

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

Q4 2019

Shares 8,175 Value ($000) $370 Avg Close $41.84 Range $37.65 - $46.62

Q3 2019

Shares 11,600 Value ($000) $472 Avg Close $42.37 Range $39.75 - $43.84

Q2 2019

Shares 13,150 Value ($000) $565 Avg Close $38.46 Range $34.35 - $43.02

Q1 2019

Shares 16,445 Value ($000) $631 Avg Close $38.19 Range $32.73 - $41.00

Q4 2018

Shares 15,650 Value ($000) $553 Avg Close $36.27 Range $31.56 - $39.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	8,175	$370	$41.84	$37.65 - $46.62
Q3 2019	11,600	$472	$42.37	$39.75 - $43.84
Q2 2019	13,150	$565	$38.46	$34.35 - $43.02
Q1 2019	16,445	$631	$38.19	$32.73 - $41.00
Q4 2018	15,650	$553	$36.27	$31.56 - $39.44