Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionBrown, Lisle/cummings, Inc.
Latest Disclosed Ownership75,763 shares
Latest Disclosed Value $ 4,754,128
Brown, Lisle/cummings, Inc. reports 1.77% increase in ownership of BSX / Boston Scientific Corporation

On April 17, 2026 - Brown, Lisle/cummings, Inc. filed a 13F-HR form disclosing ownership of 75,763 shares of Boston Scientific Corporation (MX:BSX) valued at $4,754,128 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 74,443 shares of Boston Scientific Corporation. This represents a change in shares of 1.77% 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)
2026-04-17 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 75,763 1,320 1.77 4,754 -33.02 1.1873
2026-01-23 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 74,443 -900 -1.19 7,098 -3.49 1.7487
2025-10-10 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 75,343 -225 -0.30 7,356 -9.38 1.8878
2025-07-16 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 75,568 1,175 1.58 8,117 8.16 2.1600
2025-04-22 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 74,393 -132 -0.18 7,505 12.74 2.1751
2025-01-27 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 74,525 833 1.13 6,657 7.79 1.9866
2024-10-18 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 73,692 75 0.10 6,175 8.93 1.8764
2024-07-17 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 73,617 250 0.34 5,669 12.84 1.8474
2024-07-01 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 73,367 1,250 1.73 5,025 20.51 1.7068
2024-07-01 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 72,117 -100 -0.14 4,169 9.34 1.5465
2024-07-01 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 72,217 2,525 3.62 3,813 1.17 1.7252
2024-07-01 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 69,692 6,625 10.50 3,770 19.46 1.6862
2024-07-01 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 63,067 975 1.57 3,155 9.85 1.6008
2024-07-01 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 62,092 1,275 2.10 2,873 21.95 1.5427
2024-07-01 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 60,817 -1,000 -1.62 2,355 2.26 1.3752
2024-07-01 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 61,817 2,475 4.17 2,304 -12.37 1.2751
2024-07-01 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 59,342 5,225 9.66 2,628 14.36 1.2627
2024-07-01 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 54,117 54,117 2,299 1.1489
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.