Form 13-F position report

BOSTON SCIENTIFIC CORP

Reported by VIKING GLOBAL INVESTORS LP

BSX CUSIP 101137107 Manager CIK 0001103804

Reported 14,653,954 shares, up 1,814,812 (14.1%) from the prior quarter.

Reported value -4.0%; share count 14.1% vs. the prior quarter.

Added
% of reported 13F value 2.5% This manager · Q2 2022
Shares 14,653,954 Quarter-end amount reported
Reported value $546,153,000 Fair value at quarter end
Consecutive quarters held 16 Through Q2 2022

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2021-09-30 297933000
2021-12-31 805485000
2022-03-31 568646000
2022-06-30 546153000
2022-09-30 625990000
2022-12-31 440887998
2023-03-31 56878156
2023-06-30 0
2023-09-30 58623418
2023-12-31 131099263
2024-03-31 118128470
2024-06-30 0
2024-09-30 81052198
2024-12-31 194021619
2025-03-31 239767952
2025-06-30 327145511
2025-09-30 257907414
2025-12-31 239310193
2026-03-31 0

Quarterly position history

How this manager's reported quarter-end position changed over time.

19 quarters
Quarterly reported position history for BOSTON SCIENTIFIC CORP held by VIKING GLOBAL INVESTORS LP.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q1 2026 Reduced 0 -2,509,808 (-100.0%) 0 $0 2026-05-15
Q4 2025 Reduced 2,509,808 -131,874 (-5.0%) 0.64% $239,310,193 2026-02-17
Q3 2025 Reduced 2,641,682 -404,082 (-13.3%) 0.67% $257,907,414 2025-11-14
Q2 2025 Added 3,045,764 +669,000 (28.1%) 0.95% $327,145,511 2025-08-14
Q1 2025 Added 2,376,764 +204,556 (9.4%) 0.76% $239,767,952 2025-05-15
Q4 2024 Added 2,172,208 +1,204,998 (124.6%) 0.63% $194,021,619 2025-02-14
Q3 2024 New 967,210 +967,210 (0.0%) 0.3% $81,052,198 2024-11-14
Q2 2024 Reduced 0 -1,724,755 (-100.0%) 0 $0 2024-08-14
Q1 2024 Reduced 1,724,755 -543,006 (-23.9%) 0.44% $118,128,470 2024-05-15
Q4 2023 Added 2,267,761 +1,157,469 (104.2%) 0.48% $131,099,263 2024-02-14
Q3 2023 New 1,110,292 +1,110,292 (0.0%) 0.24% $58,623,418 2023-11-14
Q2 2023 Reduced 0 -1,136,881 (-100.0%) 0 $0 2023-08-14
Q1 2023 Reduced 1,136,881 -8,391,712 (-88.1%) 0.27% $56,878,156 2023-05-15
Q4 2022 Reduced 9,528,593 -6,634,328 (-41.0%) 2.21% $440,887,998 2023-02-14
Q3 2022 Added 16,162,921 +1,508,967 (10.3%) 2.89% $625,990,000 2022-11-14
Q2 2022 Added 14,653,954 +1,814,812 (14.1%) 2.5% $546,153,000 2022-08-15
Q1 2022 Reduced 12,839,142 -6,122,359 (-32.3%) 2.3% $568,646,000 2022-05-16
Q4 2021 Added 18,961,501 +12,095,096 (176.1%) 2.32% $805,485,000 2022-02-14
Q3 2021 Reduced 6,866,405 -6,449,411 (-48.4%) 0.82% $297,933,000 2021-11-15
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

947 managers reported BOSTON SCIENTIFIC CORP for Q2 2022.

Managers reporting BOSTON SCIENTIFIC CORP in Q2 2022.
Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc Reduced 126,258,034 -175,254 0.15% $4,705,638,000 37 qtrs
VANGUARD GROUP INC Added 115,177,740 +1,812,913 0.12% $4,292,675,000 37 qtrs
MASSACHUSETTS FINANCIAL SERVICES CO MA Reduced 83,605,616 -563,369 1.07% $3,115,981,000 16 qtrs
FMR LLC Reduced 77,968,047 -15,151,332 0.29% $2,905,869,000 37 qtrs
STATE STREET CORPORATION Added 63,670,965 +447,651 0.14% $2,373,017,000 37 qtrs
WELLINGTON MANAGEMENT GROUP LLP Reduced 63,660,026 -4,679,386 0.48% $2,372,609,000 37 qtrs
JPMorgan Chase & Co Added 51,509,775 +3,738,113 0.27% $1,919,770,000 37 qtrs
PRIMECAP MANAGEMENT CO CA Reduced 37,819,609 -101,210 1.26% $1,409,537,000 37 qtrs
Bollard Group LLC Reduced 26,195,991 -437,881 39.56% $976,325,000 37 qtrs
JANUS HENDERSON GROUP PLC Reduced 26,045,094 -707,854 0.67% $970,705,000 37 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
June 30, 2022
Filed
August 15, 2022
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
14,653,954
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.