BOSTON SCIENTIFIC CORP

Ticker: BSX CUSIP: 101137107 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2025

Shares 116,698 Value ($000) $11,127 Avg Close $98.04 Range $90.42 - $105.65

Q3 2025

Shares 115,178 Value ($000) $11,245 Avg Close $103.56 Range $95.84 - $109.50

Q2 2025

Shares 118,768 Value ($000) $12,757 Avg Close $101.18 Range $85.98 - $107.53

Q1 2025

Shares 117,942 Value ($000) $11,898 Avg Close $100.70 Range $88.81 - $107.17

Q4 2024

Shares 22,437 Value ($000) $2,004 Avg Close $88.03 Range $80.64 - $91.93

Q3 2024

Shares 19,976 Value ($000) $1,674 Avg Close $78.83 Range $71.88 - $84.89

Q2 2024

Shares 18,410 Value ($000) $1,418 Avg Close $73.20 Range $66.80 - $77.99

Q1 2024

Shares 18,312 Value ($000) $1,254 Avg Close $64.30 Range $57.11 - $68.92

Q4 2023

Shares 16,752 Value ($000) $968 Avg Close $53.38 Range $48.35 - $58.34

Q3 2023

Shares 8,572 Value ($000) $453 Avg Close $52.45 Range $49.69 - $55.38

Q2 2023

Shares 9,609 Value ($000) $520 Avg Close $52.23 Range $49.38 - $54.75

Q1 2023

Shares 9,704 Value ($000) $485 Avg Close $47.13 Range $44.35 - $50.21

Q4 2022

Shares 10,009 Value ($000) $463 Avg Close $43.30 Range $38.79 - $47.95

Q3 2022

Shares 10,872 Value ($000) $421 Avg Close $40.12 Range $36.15 - $43.52

Q2 2022

Shares 10,115 Value ($000) $377 Avg Close $40.71 Range $34.98 - $47.50

Q1 2022

Shares 13,284 Value ($000) $588 Avg Close $43.34 Range $40.80 - $45.32

Q4 2021

Shares 25,986 Value ($000) $1,104 Avg Close $42.02 Range $37.96 - $45.43

Q3 2021

Shares 14,442 Value ($000) $627 Avg Close $44.24 Range $40.93 - $46.29

Q2 2021

Shares 16,612 Value ($000) $710 Avg Close $42.07 Range $38.00 - $44.63

Q1 2021

Shares 30,754 Value ($000) $1,189 Avg Close $37.85 Range $34.58 - $40.13

Q4 2020

Shares 30,417 Value ($000) $1,093 Avg Close $36.04 Range $32.99 - $42.13

Q3 2020

Shares 40,358 Value ($000) $1,542 Avg Close $38.53 Range $33.77 - $42.37

Q2 2020

Shares 25,894 Value ($000) $909 Avg Close $36.01 Range $29.65 - $39.33

Q1 2020

Shares 29,928 Value ($000) $977 Avg Close $39.07 Range $24.10 - $46.13

Q4 2019

Shares 52,374 Value ($000) $2,368 Avg Close $41.84 Range $37.65 - $46.62

Q3 2019

Shares 52,601 Value ($000) $2,140 Avg Close $42.37 Range $39.75 - $43.84

Q2 2019

Shares 45,001 Value ($000) $1,934 Avg Close $38.46 Range $34.35 - $43.02

Q1 2019

Shares 49,463 Value ($000) $1,898 Avg Close $38.19 Range $32.73 - $41.00

Q4 2018

Shares 34,781 Value ($000) $1,229 Avg Close $36.27 Range $31.56 - $39.44

Q3 2018

Shares 28,831 Value ($000) $1,110 Avg Close $34.93 Range $32.27 - $39.13

Q2 2018

Shares 29,306 Value ($000) $958 Avg Close $30.16 Range $26.42 - $37.30

Q1 2018

Shares 47,671 Value ($000) $1,302 Avg Close $27.18 Range $24.84 - $28.90

Q4 2017

Shares 46,184 Value ($000) $1,145 Avg Close $27.58 Range $24.54 - $29.93

Q3 2017

Shares 45,456 Value ($000) $1,326 Avg Close $27.62 Range $26.23 - $29.40

Q2 2017

Shares 42,279 Value ($000) $1,172 Avg Close $26.54 Range $24.29 - $28.51

Q1 2017

Shares 43,379 Value ($000) $1,065 Avg Close $24.32 Range $21.66 - $25.65

Q4 2016

Shares 38,709 Value ($000) $837 Avg Close $21.82 Range $19.67 - $23.88

Q3 2016

Shares 39,432 Value ($000) $938 Avg Close $23.86 Range $22.95 - $24.79

Q2 2016

Shares 40,122 Value ($000) $938 Avg Close $21.63 Range $18.65 - $23.37

Q1 2016

Shares 38,896 Value ($000) $731 Avg Close $17.57 Range $15.67 - $18.89

Q4 2015

Shares 41,179 Value ($000) $759 Avg Close $17.92 Range $16.25 - $19.06

Q3 2015

Shares 34,679 Value ($000) $569 Avg Close $17.09 Range $14.18 - $18.11

Q2 2015

Shares 35,835 Value ($000) $634 Avg Close $17.87 Range $17.12 - $18.62

Q1 2015

Shares 40,585 Value ($000) $719 Avg Close $15.80 Range $13.14 - $18.17

Q4 2014

Shares 21,749 Value ($000) $287 Avg Close $12.78 Range $11.10 - $13.76

Q3 2014

Shares 23,919 Value ($000) $282 Avg Close $12.59 Range $11.76 - $13.34

Q2 2014

Shares 41,634 Value ($000) $532 Avg Close $13.00 Range $12.28 - $13.90

Q1 2014

Shares 47,735 Value ($000) $645 Avg Close $13.13 Range $11.85 - $14.08

Q4 2013

Shares 45,921 Value ($000) $551 Avg Close $11.81 Range $11.12 - $12.48

Q3 2013

Shares 55,121 Value ($000) $647 Avg Close $10.82 Range $9.05 - $12.16

Q2 2013

Shares 27,379 Value ($000) $253 Avg Close $8.48 Range $7.07 - $9.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	116,698	$11,127	$98.04	$90.42 - $105.65
Q3 2025	115,178	$11,245	$103.56	$95.84 - $109.50
Q2 2025	118,768	$12,757	$101.18	$85.98 - $107.53
Q1 2025	117,942	$11,898	$100.70	$88.81 - $107.17
Q4 2024	22,437	$2,004	$88.03	$80.64 - $91.93
Q3 2024	19,976	$1,674	$78.83	$71.88 - $84.89
Q2 2024	18,410	$1,418	$73.20	$66.80 - $77.99
Q1 2024	18,312	$1,254	$64.30	$57.11 - $68.92
Q4 2023	16,752	$968	$53.38	$48.35 - $58.34
Q3 2023	8,572	$453	$52.45	$49.69 - $55.38
Q2 2023	9,609	$520	$52.23	$49.38 - $54.75
Q1 2023	9,704	$485	$47.13	$44.35 - $50.21
Q4 2022	10,009	$463	$43.30	$38.79 - $47.95
Q3 2022	10,872	$421	$40.12	$36.15 - $43.52
Q2 2022	10,115	$377	$40.71	$34.98 - $47.50
Q1 2022	13,284	$588	$43.34	$40.80 - $45.32
Q4 2021	25,986	$1,104	$42.02	$37.96 - $45.43
Q3 2021	14,442	$627	$44.24	$40.93 - $46.29
Q2 2021	16,612	$710	$42.07	$38.00 - $44.63
Q1 2021	30,754	$1,189	$37.85	$34.58 - $40.13
Q4 2020	30,417	$1,093	$36.04	$32.99 - $42.13
Q3 2020	40,358	$1,542	$38.53	$33.77 - $42.37
Q2 2020	25,894	$909	$36.01	$29.65 - $39.33
Q1 2020	29,928	$977	$39.07	$24.10 - $46.13
Q4 2019	52,374	$2,368	$41.84	$37.65 - $46.62
Q3 2019	52,601	$2,140	$42.37	$39.75 - $43.84
Q2 2019	45,001	$1,934	$38.46	$34.35 - $43.02
Q1 2019	49,463	$1,898	$38.19	$32.73 - $41.00
Q4 2018	34,781	$1,229	$36.27	$31.56 - $39.44
Q3 2018	28,831	$1,110	$34.93	$32.27 - $39.13
Q2 2018	29,306	$958	$30.16	$26.42 - $37.30
Q1 2018	47,671	$1,302	$27.18	$24.84 - $28.90
Q4 2017	46,184	$1,145	$27.58	$24.54 - $29.93
Q3 2017	45,456	$1,326	$27.62	$26.23 - $29.40
Q2 2017	42,279	$1,172	$26.54	$24.29 - $28.51
Q1 2017	43,379	$1,065	$24.32	$21.66 - $25.65
Q4 2016	38,709	$837	$21.82	$19.67 - $23.88
Q3 2016	39,432	$938	$23.86	$22.95 - $24.79
Q2 2016	40,122	$938	$21.63	$18.65 - $23.37
Q1 2016	38,896	$731	$17.57	$15.67 - $18.89
Q4 2015	41,179	$759	$17.92	$16.25 - $19.06
Q3 2015	34,679	$569	$17.09	$14.18 - $18.11
Q2 2015	35,835	$634	$17.87	$17.12 - $18.62
Q1 2015	40,585	$719	$15.80	$13.14 - $18.17
Q4 2014	21,749	$287	$12.78	$11.10 - $13.76
Q3 2014	23,919	$282	$12.59	$11.76 - $13.34
Q2 2014	41,634	$532	$13.00	$12.28 - $13.90
Q1 2014	47,735	$645	$13.13	$11.85 - $14.08
Q4 2013	45,921	$551	$11.81	$11.12 - $12.48
Q3 2013	55,121	$647	$10.82	$9.05 - $12.16
Q2 2013	27,379	$253	$8.48	$7.07 - $9.75