Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionLegacy Wealth Management, LLC / MS
Latest Disclosed Ownership52,032 shares
Latest Disclosed Value $ 3,265,008
Legacy Wealth Management, LLC / MS reports 4.48% increase in ownership of BSX / Boston Scientific Corporation

On April 10, 2026 - Legacy Wealth Management, LLC / MS filed a 13F-HR form disclosing ownership of 52,032 shares of Boston Scientific Corporation (MX:BSX) valued at $3,265,008 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 49,800 shares of Boston Scientific Corporation. This represents a change in shares of 4.48% 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)
2026-04-10 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 52,032 2,232 4.48 3,265 -31.23 0.9306
2026-01-05 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 49,800 6,635 15.37 4,748 12.67 1.2677
2025-10-23 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 43,165 -6,685 -13.41 4,214 -21.29 1.2684
2025-07-01 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 49,850 -1,940 -3.75 5,354 2.49 1.6282
2025-04-03 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 51,790 -465 -0.89 5,225 11.93 1.7077
2025-01-06 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 52,255 -3,310 -5.96 4,667 0.24 1.8543
2024-12-12 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 55,565 -495 -0.88 4,656 7.85 1.7102
2024-12-12 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 56,060 -65 -0.12 4,317 12.30 1.8235
2024-12-12 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 56,125 -145 -0.26 3,844 18.20 1.7330
2024-12-12 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 56,270 0 0.00 3,253 9.46 1.5683
2024-12-12 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 56,270 -35 -0.06 2,971 -2.43 1.5442
2024-12-12 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 56,305 0 0.00 3,046 8.13 1.5274
2024-12-12 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 56,305 0 0.00 2,817 8.10 1.5544
2024-12-12 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 56,305 -150 -0.27 2,605 19.17 1.5440
2024-12-12 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 56,455 -6,100 -9.75 2,187 -6.22 1.4756
2024-12-12 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 62,555 200 0.32 2,331 -15.57 1.4167
2024-12-12 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 62,355 116 0.19 2,762 4.46 1.4417
2024-12-12 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 62,239 1,884 3.12 2,644 0.95 1.3533
2024-12-12 2021-09-30 13F BOSTON SCIENTIFIC COM 101137107 60,355 -300 -0.49 2,619 0.96 1.4008
2024-12-12 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 60,655 -3,825 -5.93 2,594 4.05 1.4378
2024-12-12 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 64,480 175 0.27 2,492 7.83 1.5104
2024-12-12 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 64,305 -1,405 -2.14 2,312 -7.93 1.4649
2024-12-12 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 65,710 -2,360 -3.47 2,511 5.06 1.7307
2024-12-12 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 68,070 615 0.91 2,390 8.54 1.8248
2024-12-12 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 67,455 41,867 163.62 2,201 90.23 2.0507
2024-12-12 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 25,588 25,588 1,157 1.0077
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.