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STATE OF WISCONSIN INVESTMENT BOARD

Position in BSX — Boston Scientific Corp

CIK 854157 MADISON, WI

Position in BSX

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$52,330,676
-$20,884,202 QoQ
Shares Held
833,955
+8.6% QoQ
Ownership
0.056%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in BSX Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $467,347,094 across 44 Medical Devices names. BSX ranks #4 (11.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 BSX
Boston Scientific Corp
This page
833,955 $52,330,676

All Filings in BSX

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $52,330,676 833,955
2025-12-31 $73,214,878 767,854
2025-09-30 $82,158,573 841,530
2025-06-30 $86,651,513 806,736
2025-03-31 $89,068,263 882,913
2024-12-31 $78,317,115 876,815
2024-09-30 $76,864,795 917,241
2024-06-30 $65,908,161 855,839
2024-03-31 $56,681,433 827,587
2023-12-31 $46,128,159 797,927
2023-09-30 $44,384,313 840,612
2023-06-30 $76,217,137 1,409,080
2023-03-31 $58,675,934 1,172,815
2022-12-31 $53,087,051 1,147,332
2022-09-30 $47,236,850 1,219,645
2022-06-30 $54,215,215 1,454,661
2022-03-31 $68,724,837 1,551,701
2021-12-31 $101,931,439 2,399,516
2021-09-30 $99,892,501 2,302,201
2021-06-30 $102,457,278 2,396,101
2021-03-31 $105,739,133 2,735,812
2020-12-31 $98,889,174 2,750,742
2020-09-30 $92,834,175 2,429,578
2020-06-30 $68,083,135 1,939,138
2020-03-31 $48,323,431 1,480,951