BOSTON SCIENTIFIC CORP

Ticker: BSX CUSIP: 101137107 Class: COM

GREAT WEST LIFE ASSURANCE CO /CAN/'s Holding History (CIK: 0001046192)

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

Q4 2025

Shares 1,159,096 Value ($000) $111 Avg Close $98.04 Range $90.42 - $105.65

Q3 2025

Shares 1,960,559 Value ($000) $190 Avg Close $103.56 Range $95.84 - $109.50

Q2 2025

Shares 1,924,409 Value ($000) $207 Avg Close $101.18 Range $85.98 - $107.53

Q1 2025

Shares 1,822,484 Value ($000) $184 Avg Close $100.70 Range $88.81 - $107.17

Q4 2024

Shares 1,778,962 Value ($000) $159 Avg Close $88.03 Range $80.64 - $91.93

Q3 2024

Shares 1,790,372 Value ($000) $150 Avg Close $78.83 Range $71.88 - $84.89

Q2 2024

Shares 1,746,665 Value ($000) $135 Avg Close $73.20 Range $66.80 - $77.99

Q1 2024

Shares 1,444,567 Value ($000) $99 Avg Close $64.30 Range $57.11 - $68.92

Q4 2023

Shares 1,429,297 Value ($000) $82 Avg Close $53.38 Range $48.35 - $58.34

Q3 2023

Shares 1,271,698 Value ($000) $67 Avg Close $52.45 Range $49.69 - $55.38

Q2 2023

Shares 1,182,484 Value ($000) $64 Avg Close $52.23 Range $49.38 - $54.75

Q1 2023

Shares 1,052,015 Value ($000) $53 Avg Close $47.13 Range $44.35 - $50.21

Q4 2022

Shares 1,054,372 Value ($000) $49 Avg Close $43.30 Range $38.79 - $47.95

Q3 2022

Shares 1,073,473 Value ($000) $41,561 Avg Close $40.12 Range $36.15 - $43.52

Q2 2022

Shares 1,073,604 Value ($000) $40,045 Avg Close $40.71 Range $34.98 - $47.50

Q1 2022

Shares 1,031,369 Value ($000) $48,187 Avg Close $43.34 Range $40.80 - $45.32

Q4 2021

Shares 1,031,272 Value ($000) $43,696 Avg Close $42.02 Range $37.96 - $45.43

Q3 2021

Shares 1,004,488 Value ($000) $43,877 Avg Close $44.24 Range $40.93 - $46.29

Q2 2021

Shares 993,193 Value ($000) $42,447 Avg Close $42.07 Range $38.00 - $44.63

Q1 2021

Shares 993,551 Value ($000) $38,178 Avg Close $37.85 Range $34.58 - $40.13

Q4 2020

Shares 960,649 Value ($000) $34,453 Avg Close $36.04 Range $32.99 - $42.13

Q3 2020

Shares 822,883 Value ($000) $31,434 Avg Close $38.53 Range $33.77 - $42.37

Q2 2020

Shares 737,353 Value ($000) $25,795 Avg Close $36.01 Range $29.65 - $39.33

Q1 2020

Shares 771,679 Value ($000) $25,329 Avg Close $39.07 Range $24.10 - $46.13

Q4 2019

Shares 781,352 Value ($000) $35,060 Avg Close $41.84 Range $37.65 - $46.62

Q3 2019

Shares 845,906 Value ($000) $34,438 Avg Close $42.37 Range $39.75 - $43.84

Q2 2019

Shares 854,672 Value ($000) $36,686 Avg Close $38.46 Range $34.35 - $43.02

Q1 2019

Shares 1,108,364 Value ($000) $42,440 Avg Close $38.19 Range $32.73 - $41.00

Q4 2018

Shares 859,220 Value ($000) $28,882 Avg Close $36.27 Range $31.56 - $39.44

Q3 2018

Shares 869,747 Value ($000) $33,495 Avg Close $34.93 Range $32.27 - $39.13

Q2 2018

Shares 989,311 Value ($000) $32,357 Avg Close $30.16 Range $26.42 - $37.30

Q1 2018

Shares 986,140 Value ($000) $26,976 Avg Close $27.18 Range $24.84 - $28.90

Q4 2017

Shares 997,818 Value ($000) $24,707 Avg Close $27.58 Range $24.54 - $29.93

Q3 2017

Shares 991,691 Value ($000) $28,470 Avg Close $27.62 Range $26.23 - $29.40

Q2 2017

Shares 973,852 Value ($000) $26,956 Avg Close $26.54 Range $24.29 - $28.51

Q1 2017

Shares 1,132,297 Value ($000) $28,129 Avg Close $24.32 Range $21.66 - $25.65

Q4 2016

Shares 1,142,614 Value ($000) $24,784 Avg Close $21.82 Range $19.67 - $23.88

Q3 2016

Shares 1,241,290 Value ($000) $29,524 Avg Close $23.86 Range $22.95 - $24.79

Q2 2016

Shares 1,199,503 Value ($000) $27,946 Avg Close $21.63 Range $18.65 - $23.37

Q1 2016

Shares 785,040 Value ($000) $14,763 Avg Close $17.57 Range $15.67 - $18.89

Q4 2015

Shares 748,236 Value ($000) $13,805 Avg Close $17.92 Range $16.25 - $19.06

Q3 2015

Shares 708,836 Value ($000) $11,649 Avg Close $17.09 Range $14.18 - $18.11

Q2 2015

Shares 732,480 Value ($000) $12,938 Avg Close $17.87 Range $17.12 - $18.62

Q1 2015

Shares 734,017 Value ($000) $12,990 Avg Close $15.80 Range $13.14 - $18.17

Q4 2014

Shares 762,819 Value ($000) $10,080 Avg Close $12.78 Range $11.10 - $13.76

Q3 2014

Shares 864,405 Value ($000) $10,239 Avg Close $12.59 Range $11.76 - $13.34

Q2 2014

Shares 896,486 Value ($000) $11,409 Avg Close $13.00 Range $12.28 - $13.90

Q1 2014

Shares 846,840 Value ($000) $11,388 Avg Close $13.13 Range $11.85 - $14.08

Q4 2013

Shares 743,956 Value ($000) $8,989 Avg Close $11.81 Range $11.12 - $12.48

Q3 2013

Shares 683,403 Value ($000) $8,010 Avg Close $10.82 Range $9.05 - $12.16

Q2 2013

Shares 61,354 Value ($000) $569 Avg Close $8.48 Range $7.07 - $9.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,159,096	$111	$98.04	$90.42 - $105.65
Q3 2025	1,960,559	$190	$103.56	$95.84 - $109.50
Q2 2025	1,924,409	$207	$101.18	$85.98 - $107.53
Q1 2025	1,822,484	$184	$100.70	$88.81 - $107.17
Q4 2024	1,778,962	$159	$88.03	$80.64 - $91.93
Q3 2024	1,790,372	$150	$78.83	$71.88 - $84.89
Q2 2024	1,746,665	$135	$73.20	$66.80 - $77.99
Q1 2024	1,444,567	$99	$64.30	$57.11 - $68.92
Q4 2023	1,429,297	$82	$53.38	$48.35 - $58.34
Q3 2023	1,271,698	$67	$52.45	$49.69 - $55.38
Q2 2023	1,182,484	$64	$52.23	$49.38 - $54.75
Q1 2023	1,052,015	$53	$47.13	$44.35 - $50.21
Q4 2022	1,054,372	$49	$43.30	$38.79 - $47.95
Q3 2022	1,073,473	$41,561	$40.12	$36.15 - $43.52
Q2 2022	1,073,604	$40,045	$40.71	$34.98 - $47.50
Q1 2022	1,031,369	$48,187	$43.34	$40.80 - $45.32
Q4 2021	1,031,272	$43,696	$42.02	$37.96 - $45.43
Q3 2021	1,004,488	$43,877	$44.24	$40.93 - $46.29
Q2 2021	993,193	$42,447	$42.07	$38.00 - $44.63
Q1 2021	993,551	$38,178	$37.85	$34.58 - $40.13
Q4 2020	960,649	$34,453	$36.04	$32.99 - $42.13
Q3 2020	822,883	$31,434	$38.53	$33.77 - $42.37
Q2 2020	737,353	$25,795	$36.01	$29.65 - $39.33
Q1 2020	771,679	$25,329	$39.07	$24.10 - $46.13
Q4 2019	781,352	$35,060	$41.84	$37.65 - $46.62
Q3 2019	845,906	$34,438	$42.37	$39.75 - $43.84
Q2 2019	854,672	$36,686	$38.46	$34.35 - $43.02
Q1 2019	1,108,364	$42,440	$38.19	$32.73 - $41.00
Q4 2018	859,220	$28,882	$36.27	$31.56 - $39.44
Q3 2018	869,747	$33,495	$34.93	$32.27 - $39.13
Q2 2018	989,311	$32,357	$30.16	$26.42 - $37.30
Q1 2018	986,140	$26,976	$27.18	$24.84 - $28.90
Q4 2017	997,818	$24,707	$27.58	$24.54 - $29.93
Q3 2017	991,691	$28,470	$27.62	$26.23 - $29.40
Q2 2017	973,852	$26,956	$26.54	$24.29 - $28.51
Q1 2017	1,132,297	$28,129	$24.32	$21.66 - $25.65
Q4 2016	1,142,614	$24,784	$21.82	$19.67 - $23.88
Q3 2016	1,241,290	$29,524	$23.86	$22.95 - $24.79
Q2 2016	1,199,503	$27,946	$21.63	$18.65 - $23.37
Q1 2016	785,040	$14,763	$17.57	$15.67 - $18.89
Q4 2015	748,236	$13,805	$17.92	$16.25 - $19.06
Q3 2015	708,836	$11,649	$17.09	$14.18 - $18.11
Q2 2015	732,480	$12,938	$17.87	$17.12 - $18.62
Q1 2015	734,017	$12,990	$15.80	$13.14 - $18.17
Q4 2014	762,819	$10,080	$12.78	$11.10 - $13.76
Q3 2014	864,405	$10,239	$12.59	$11.76 - $13.34
Q2 2014	896,486	$11,409	$13.00	$12.28 - $13.90
Q1 2014	846,840	$11,388	$13.13	$11.85 - $14.08
Q4 2013	743,956	$8,989	$11.81	$11.12 - $12.48
Q3 2013	683,403	$8,010	$10.82	$9.05 - $12.16
Q2 2013	61,354	$569	$8.48	$7.07 - $9.75