Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionDanske Bank A/s
Latest Disclosed Ownership834,747 shares
Latest Disclosed Value $ 52,380,374
Danske Bank A/s reports 3.50% decrease in ownership of BSX / Boston Scientific Corporation

On May 12, 2026 - Danske Bank A/s filed a 13F-HR form disclosing ownership of 834,747 shares of Boston Scientific Corporation (MX:BSX) valued at $52,380,374 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 865,062 shares of Boston Scientific Corporation. This represents a change in shares of -3.50% 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 834,747 -30,315 -3.50 52,380 -36.50 0.0593
2026-02-02 2025-12-31 13F Boston Scientific COM 101137107 865,062 -103,023 -10.64 82,484 -12.73 0.1918
2025-11-19 2025-09-30 13F/A-1 Boston Scientific COM 101137107 968,085 -119,385 -10.98 94,514 -19.08 0.2350
2025-11-13 2025-09-30 13F Boston Scientific COM 101137107 11,672 11,672 1,140 0.0583
2025-12-18 2025-06-30 13F Boston Scientific COM 101137107 1,087,470 191,027 21.31 116,805 29.16 0.2901
2025-12-18 2025-03-31 13F Boston Scientific COM 101137107 896,443 165,101 22.58 90,433 38.44 0.2762
2026-03-18 2024-12-31 13F Boston Scientific COM 101137107 731,342 106,058 16.96 65,323 24.67 0.1953
2026-03-18 2024-09-30 13F Boston Scientific COM 101137107 625,284 15,900 2.61 52,399 11.66 0.1746
2026-03-18 2024-06-30 13F Boston Scientific COM 101137107 609,384 -154,370 -20.21 46,929 -10.29 0.1732
2026-03-18 2024-03-31 13F Boston Scientific COM 101137107 763,754 763,754 52,310 0.1641
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.