Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionEP Wealth Advisors, Inc.
Latest Disclosed Ownership24,757 shares
Latest Disclosed Value $ 1,553,519
EP Wealth Advisors, Inc. reports 13.86% decrease in ownership of BSX / Boston Scientific Corporation

On May 14, 2026 - EP Wealth Advisors, Inc. filed a 13F-HR form disclosing ownership of 24,757 shares of Boston Scientific Corporation (MX:BSX) valued at $1,553,519 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 28,739 shares of Boston Scientific Corporation. This represents a change in shares of -13.86% 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)
2026-05-14 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 24,757 -3,982 -13.86 1,554 -43.32 0.0076
2026-02-18 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 28,739 -6,407 -18.23 2,740 -27.42 0.0142
2025-08-14 2025-06-30 13F Boston Scientific COM 101137107 35,146 -457 -1.28 3,775 5.12 0.0248
2025-05-15 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 35,603 16,149 83.01 3,592 106.74 0.0287
2025-02-14 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 19,454 3,513 22.04 1,738 30.11 0.0142
2024-11-15 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 15,941 2,875 22.00 1,336 32.70 0.0115
2024-08-19 2024-06-30 13F Boston Scientific COM 101137107 13,066 514 4.09 1,006 17.11 0.0107
2024-05-14 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 12,552 497 4.12 860 23.42 0.0100
2024-02-28 2023-12-31 13F Boston Scientific COM 101137107 12,055 3,804 46.10 697 60.00 0.0089
2023-11-24 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 8,251 -10,088 -55.01 436 -7.45 0.0068
2023-08-14 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 18,339 0 0.00 470 -66.48 0.0068
2023-06-05 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 18,339 10,140 123.67 1,403 269.92 0.0241
2023-06-12 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 8,199 8,199 379 0.0068
2022-12-02 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 0 -5,474 -100.00 0 -100.00
2022-08-11 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 5,474 5,474 204 0.0046
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.