Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionFocus Financial Network, Inc.
Latest Disclosed Ownership26,587 shares
Latest Disclosed Value $ 1,668,303
Focus Financial Network, Inc. reports 9.52% decrease in ownership of BSX / Boston Scientific Corporation

On April 14, 2026 - Focus Financial Network, Inc. filed a 13F-HR form disclosing ownership of 26,587 shares of Boston Scientific Corporation (MX:BSX) valued at $1,668,303 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 29,385 shares of Boston Scientific Corporation. This represents a change in shares of -9.52% 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)
2026-04-14 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 26,587 -2,798 -9.52 1,668 -40.45 0.0598
2026-01-12 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 29,385 3,380 13.00 2,802 10.36 0.0975
2025-10-10 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 26,005 9,952 61.99 2,539 47.22 0.0905
2025-07-10 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 16,053 10 0.06 1,724 6.55 0.0681
2025-04-15 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 16,043 -2,078 -11.47 1,618 0.00 0.0662
2025-01-29 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 18,121 1,615 9.78 1,619 16.99 0.0643
2024-10-28 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 16,506 420 2.61 1,383 11.08 0.0565
2024-07-22 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 16,086 1,837 12.89 1,245 29.69 0.0532
2024-04-24 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 14,249 -2,431 -14.57 961 9.09 0.0468
2024-07-23 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 16,680 -46 -0.28 881 -2.65 0.0497
2024-07-23 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 16,726 -2 -0.01 905 8.13 0.0503
2024-07-23 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 16,728 -671 -3.86 837 3.85 0.0521
2024-07-24 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 17,399 4,255 32.37 805 58.15 0.0655
2024-07-24 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 13,144 -162 -1.22 509 2.83 0.0440
2024-07-24 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 13,306 7 0.05 496 -15.96 0.0410
2024-07-24 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 13,299 8,159 158.74 589 170.18 0.0411
2024-07-24 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 5,140 5,140 -59.35 218 -51.98 0.0320
2024-07-24 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 0 -12,644 -100.00 0 -100.00
2024-07-24 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 12,644 -1,300 -9.32 455 -14.66 0.0403
2024-07-24 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 13,944 39 0.28 533 9.02 0.0497
2024-07-24 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 13,905 84 0.61 488 8.44 0.0543
2024-07-24 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 13,821 375 2.79 451 -25.99 0.0605
2024-07-24 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 13,446 -958 -6.65 608 3.75 0.0745
2024-07-24 2019-09-30 13F BOSTON SCIENTIFIC COM 101137107 14,404 -37 -0.26 586 -5.48 0.0812
2024-07-24 2019-06-30 13F BOSTON SCIENTIFIC COM 101137107 14,441 1,259 9.55 621 22.77 0.0919
2024-07-24 2019-03-31 13F BOSTON SCIENTIFIC COM 101137107 13,182 13,182 506 0.0811
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.