Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionInsigneo Advisory Services, Llc
Latest Disclosed Ownership12,813 shares
Latest Disclosed Value $ 804,016
Insigneo Advisory Services, Llc reports 8.49% decrease in ownership of BSX / Boston Scientific Corporation

On May 12, 2026 - Insigneo Advisory Services, Llc filed a 13F-HR form disclosing ownership of 12,813 shares of Boston Scientific Corporation (MX:BSX) valued at $804,016 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 14,001 shares of Boston Scientific Corporation. This represents a change in shares of -8.49% 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)
2026-05-12 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 12,813 -1,188 -8.49 804 -39.73 0.0571
2026-02-12 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 14,001 -1,652 -10.55 1,335 -12.70 0.0958
2025-11-12 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 15,653 1,837 13.30 1,528 3.03 0.1073
2025-08-12 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 13,816 -815 -5.57 1,484 0.54 0.1275
2025-04-18 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 14,631 2,906 24.78 1,476 40.88 0.1523
2025-02-13 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 11,725 -6,694 -36.34 1,047 -32.15 0.1082
2024-11-15 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 18,419 -3,540 -16.12 1,544 -3.68 0.1556
2024-08-14 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 21,959 4,763 27.70 1,602 36.11 0.1803
2024-05-15 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 17,196 -1,799 -9.47 1,178 7.19 0.1399
2024-02-14 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 18,995 9,421 98.40 1,098 117.43 0.1547
2023-11-14 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 9,574 -3,779 -28.30 506 -30.06 0.1029
2023-08-14 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 13,353 -1,605 -10.73 722 -3.22 0.1384
2023-05-11 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 14,958 -742 -4.73 746 2.75 0.2377
2023-02-13 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 15,700 15,700 726 0.2749
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.