BOSTON SCIENTIFIC CORP

Ticker: BSX CUSIP: 101137107 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q3 2025

Shares 2,350 Value ($000) $229 Avg Close $103.56 Range $95.84 - $109.50

Q1 2025

Shares 64,870 Value ($000) $6,544 Avg Close $100.70 Range $88.81 - $107.17

Q1 2020

Shares 608,720 Value ($000) $19,863 Avg Close $39.07 Range $24.10 - $46.13

Q4 2019

Shares 673,180 Value ($000) $30,441 Avg Close $41.84 Range $37.65 - $46.62

Q3 2019

Shares 323,350 Value ($000) $13,157 Avg Close $42.37 Range $39.75 - $43.84

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	2,350	$229	$103.56	$95.84 - $109.50
Q1 2025	64,870	$6,544	$100.70	$88.81 - $107.17
Q1 2020	608,720	$19,863	$39.07	$24.10 - $46.13
Q4 2019	673,180	$30,441	$41.84	$37.65 - $46.62
Q3 2019	323,350	$13,157	$42.37	$39.75 - $43.84