Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionWestern Wealth Management, LLC
Latest Disclosed Ownership25,100 shares
Latest Disclosed Value $ 1,575,052
Western Wealth Management, LLC reports 0.69% increase in ownership of BSX / Boston Scientific Corporation

On May 19, 2026 - Western Wealth Management, LLC filed a 13F-HR form disclosing ownership of 25,100 shares of Boston Scientific Corporation (MX:BSX) valued at $1,575,052 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 24,929 shares of Boston Scientific Corporation. This represents a change in shares of 0.69% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-19 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 25,100 171 0.69 1,575 -33.71 0.0366
2026-02-05 2025-12-31 13F BOSTON SCIENTIFIC Common Stock 101137107 24,929 30 0.12 2,377 -2.22 0.1095
2025-11-06 2025-09-30 13F BOSTON SCIENTIFIC Common Stock 101137107 24,899 1,309 5.55 2,431 -4.07 0.1282
2025-08-11 2025-06-30 13F BOSTON SCIENTIFIC Common Stock 101137107 23,590 3,338 16.48 2,534 23.98 0.1503
2025-04-23 2025-03-31 13F BOSTON SCIENTIFIC Common Stock 101137107 20,252 -8 -0.04 2,043 12.94 0.1352
2025-04-16 2024-12-31 13F/A-1 BOSTON SCIENTIFIC Common Stock 101137107 20,260 1,678 9.03 1,810 16.18 0.1179
2024-11-12 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 18,582 -44 -0.24 1,557 8.58 0.0888
2024-07-19 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 18,626 941 5.32 1,434 18.41 0.1063
2024-05-03 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 17,685 757 4.47 1,211 23.82 0.0942
2024-01-31 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 16,928 1,043 6.57 979 16.71 0.0705
2023-11-08 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 15,885 1,489 10.34 839 7.71 0.0709
2023-08-30 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 14,396 1,407 10.83 779 19.88 0.0664
2023-08-30 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 12,989 563 4.53 650 13.07 0.0605
2023-02-03 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 12,426 -12,585 -50.32 575 -41.01 0.0588
2022-11-07 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 25,011 409 1.66 973 5.99 0.0557
2022-07-18 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 24,602 -98 -0.40 918 -16.09 0.0527
2022-05-10 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 24,700 11,824 91.83 1,094 102.22 0.0531
2022-02-14 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 12,876 3,299 34.45 541 33.25 0.0534
2021-08-09 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 9,577 376 4.09 406 14.04 0.0417
2021-05-14 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 9,201 -240 -2.54 356 5.01 0.0479
2021-02-10 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 9,441 -78 -0.82 339 -6.87 0.0498
2020-10-27 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 9,519 351 3.83 364 13.04 0.0595
2020-07-20 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 9,168 -108 -1.16 322 4.89 0.0584
2020-04-27 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 9,276 462 5.24 307 -23.06 0.0704
2020-02-10 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 8,814 -279 -3.07 399 9.02 0.0605
2019-11-08 2019-09-30 13F BOSTON SCIENTIFIC COM 101137107 9,093 -93 -1.01 366 -6.87 0.0762
2019-08-06 2019-06-30 13F BOSTON SCIENTIFIC COM 101137107 9,186 528 6.10 393 18.02 0.0516
2019-05-10 2019-03-31 13F BOSTON SCIENTIFIC COM 101137107 8,658 -325 -3.62 333 4.39 0.0741
2019-02-15 2018-12-31 13F BOSTON SCIENTIFIC COM 101137107 8,983 8,983 319 0.0858
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.