BOSTON SCIENTIFIC CORP

Ticker: BSX CUSIP: 101137107 Class: COM

CHICAGO TRUST Co NA's Holding History (CIK: 0001601539)

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

Q4 2025

Shares 29,878 Value ($000) $2,849 Avg Close $98.04 Range $90.42 - $105.65

Q3 2025

Shares 34,185 Value ($000) $3,337 Avg Close $103.56 Range $95.84 - $109.50

Q2 2025

Shares 32,428 Value ($000) $3,483 Avg Close $101.18 Range $85.98 - $107.53

Q1 2025

Shares 30,498 Value ($000) $3,077 Avg Close $100.70 Range $88.81 - $107.17

Q4 2024

Shares 30,877 Value ($000) $2,758 Avg Close $88.03 Range $80.64 - $91.93

Q3 2024

Shares 31,216 Value ($000) $2,616 Avg Close $78.83 Range $71.88 - $84.89

Q2 2024

Shares 29,439 Value ($000) $2,267 Avg Close $73.20 Range $66.80 - $77.99

Q1 2024

Shares 29,567 Value ($000) $2,025 Avg Close $64.30 Range $57.11 - $68.92

Q4 2023

Shares 29,815 Value ($000) $1,724 Avg Close $53.38 Range $48.35 - $58.34

Q3 2023

Shares 30,413 Value ($000) $1,606 Avg Close $52.45 Range $49.69 - $55.38

Q2 2023

Shares 30,043 Value ($000) $1,625 Avg Close $52.23 Range $49.38 - $54.75

Q1 2023

Shares 30,253 Value ($000) $1,514 Avg Close $47.13 Range $44.35 - $50.21

Q4 2022

Shares 40,236 Value ($000) $2 Avg Close $43.30 Range $38.79 - $47.95

Q3 2022

Shares 39,641 Value ($000) $1,535 Avg Close $40.12 Range $36.15 - $43.52

Q2 2022

Shares 40,786 Value ($000) $1,520 Avg Close $40.71 Range $34.98 - $47.50

Q1 2022

Shares 42,111 Value ($000) $1,865 Avg Close $43.34 Range $40.80 - $45.32

Q4 2021

Shares 44,176 Value ($000) $1,877 Avg Close $42.02 Range $37.96 - $45.43

Q3 2021

Shares 33,665 Value ($000) $1,461 Avg Close $44.24 Range $40.93 - $46.29

Q2 2021

Shares 33,267 Value ($000) $1,422 Avg Close $42.07 Range $38.00 - $44.63

Q1 2021

Shares 27,028 Value ($000) $1,044 Avg Close $37.85 Range $34.58 - $40.13

Q4 2020

Shares 25,753 Value ($000) $926 Avg Close $36.04 Range $32.99 - $42.13

Q3 2020

Shares 24,975 Value ($000) $954 Avg Close $38.53 Range $33.77 - $42.37

Q2 2020

Shares 19,414 Value ($000) $682 Avg Close $36.01 Range $29.65 - $39.33

Q1 2020

Shares 16,466 Value ($000) $537 Avg Close $39.07 Range $24.10 - $46.13

Q4 2019

Shares 15,534 Value ($000) $702 Avg Close $41.84 Range $37.65 - $46.62

Q3 2019

Shares 15,604 Value ($000) $635 Avg Close $42.37 Range $39.75 - $43.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	29,878	$2,849	$98.04	$90.42 - $105.65
Q3 2025	34,185	$3,337	$103.56	$95.84 - $109.50
Q2 2025	32,428	$3,483	$101.18	$85.98 - $107.53
Q1 2025	30,498	$3,077	$100.70	$88.81 - $107.17
Q4 2024	30,877	$2,758	$88.03	$80.64 - $91.93
Q3 2024	31,216	$2,616	$78.83	$71.88 - $84.89
Q2 2024	29,439	$2,267	$73.20	$66.80 - $77.99
Q1 2024	29,567	$2,025	$64.30	$57.11 - $68.92
Q4 2023	29,815	$1,724	$53.38	$48.35 - $58.34
Q3 2023	30,413	$1,606	$52.45	$49.69 - $55.38
Q2 2023	30,043	$1,625	$52.23	$49.38 - $54.75
Q1 2023	30,253	$1,514	$47.13	$44.35 - $50.21
Q4 2022	40,236	$2	$43.30	$38.79 - $47.95
Q3 2022	39,641	$1,535	$40.12	$36.15 - $43.52
Q2 2022	40,786	$1,520	$40.71	$34.98 - $47.50
Q1 2022	42,111	$1,865	$43.34	$40.80 - $45.32
Q4 2021	44,176	$1,877	$42.02	$37.96 - $45.43
Q3 2021	33,665	$1,461	$44.24	$40.93 - $46.29
Q2 2021	33,267	$1,422	$42.07	$38.00 - $44.63
Q1 2021	27,028	$1,044	$37.85	$34.58 - $40.13
Q4 2020	25,753	$926	$36.04	$32.99 - $42.13
Q3 2020	24,975	$954	$38.53	$33.77 - $42.37
Q2 2020	19,414	$682	$36.01	$29.65 - $39.33
Q1 2020	16,466	$537	$39.07	$24.10 - $46.13
Q4 2019	15,534	$702	$41.84	$37.65 - $46.62
Q3 2019	15,604	$635	$42.37	$39.75 - $43.84