Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionHighMark Wealth Management LLC
Latest Disclosed Ownership188 shares
Latest Disclosed Value $ 11,797
HighMark Wealth Management LLC reports 16.77% increase in ownership of BSX / Boston Scientific Corporation

On May 6, 2026 - HighMark Wealth Management LLC filed a 13F-HR form disclosing ownership of 188 shares of Boston Scientific Corporation (MX:BSX) valued at $11,797 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 161 shares of Boston Scientific Corporation. This represents a change in shares of 16.77% 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)
2026-05-06 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 188 27 16.77 12 -26.67 0.0048
2026-02-05 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 161 0 0.00 15 0.00 0.0063
2025-10-20 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 161 -27 -14.36 16 -25.00 0.0069
2025-07-21 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 188 24 14.63 20 25.00 0.0099
2025-04-24 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 164 -6 -3.53 17 6.67 0.0098
2025-01-31 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 170 -11 -6.08 15 0.00 0.0087
2024-10-17 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 181 -93 -33.94 15 -28.57 0.0083
2024-07-29 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 274 -25 -8.36 21 5.00 0.0127
2024-04-29 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 299 -12 -3.86 20 17.65 0.0127
2024-01-23 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 311 0 0.00 18 6.25 0.0133
2023-10-18 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 311 103 49.52 16 45.45 0.0136
2023-07-26 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 208 0 0.00 11 10.00 0.0085
2023-04-21 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 208 43 26.06 10 42.86 0.0081
2023-02-02 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 165 120 266.67 8 250.00 0.0058
2022-10-21 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 45 0 0.00 2 0.00 0.0017
2022-07-19 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 45 0 0.00 2 0.00 0.0016
2022-04-25 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 45 0 0.00 2 0.00 0.0013
2022-01-20 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 45 0 0.00 2 0.00 0.0013
2021-11-01 2021-09-30 13F BOSTON SCIENTIFIC COM 101137107 45 0 0.00 2 0.00 0.0015
2021-08-02 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 45 0 0.00 2 0.00 0.0015
2021-04-22 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 45 -146 -76.44 2 -71.43 0.0016
2021-01-27 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 191 0 0.00 7 0.00 0.0060
2020-10-26 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 191 0 0.00 7 0.00 0.0063
2020-07-22 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 191 146 324.44 7 600.00 0.0077
2020-11-19 2020-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 45 0 0.00 1 -50.00 0.0012
2020-04-30 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 45 0 1 1,767.7517
2020-03-19 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 45 45 2 0.0021
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.