Boston Scientific Corporation
AT ˙ WBAG ˙ FR0010424135
43,02 € ↑1,30 (3,12%)
2026-06-05
DEL PRIS
SecurityAT:BSXC / Boston Scientific Corporation
InstitutionSummit Financial, LLC
Latest Disclosed Ownership21,442 shares
Latest Disclosed Value $ 1,345,466
Summit Financial, LLC reports 30.30% decrease in ownership of BSXC / Boston Scientific Corporation

On May 15, 2026 - Summit Financial, LLC filed a 13F-HR form disclosing ownership of 21,442 shares of Boston Scientific Corporation (AT:BSXC) valued at $1,162,156 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 30,764 shares of Boston Scientific Corporation. This represents a change in shares of -30.30% during the quarter. The current value of the position is $922,542 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 21,442 -9,322 -30.30 1,345 -54.14 0.0171
2026-02-12 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 30,764 -1,511 -4.68 2,933 -6.89 0.0431
2025-11-14 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 32,275 -444 -1.36 3,151 -10.36 0.0481
2025-08-13 2025-06-30 13F BOSTON SCIENTIFIC Common stock 101137107 32,719 3,224 10.93 3,514 18.12 0.0794
2025-05-14 2025-03-31 13F BOSTON SCIENTIFIC Common stock 101137107 29,495 12 0.04 2,975 12.99 0.0834
2025-02-12 2024-12-31 13F BOSTON SCIENTIFIC Common Stock 101137107 29,483 3,428 13.16 2,633 20.61 0.0923
2024-11-12 2024-09-30 13F BOSTON SCIENTIFIC Common Stock 101137107 26,055 601 2.36 2,183 11.38 0.0855
2024-07-31 2024-06-30 13F BOSTON SCIENTIFIC Common Stock 101137107 25,454 9,823 62.84 1,960 83.18 0.0895
2024-04-24 2024-03-31 13F BOSTON SCIENTIFIC Common Stock 101137107 15,631 -138 -0.88 1,071 17.45 0.0634
2024-02-06 2023-12-31 13F BOSTON SCIENTIFIC Common Stock 101137107 15,769 445 2.90 912 12.61 0.0596
2023-11-07 2023-09-30 13F BOSTON SCIENTIFIC Common Stock 101137107 15,324 -149 -0.96 809 -3.23 0.0597
2023-08-11 2023-06-30 13F BOSTON SCIENTIFIC Common Stock 101137107 15,473 -403 -2.54 837 5.29 0.0610
2023-05-03 2023-03-31 13F BOSTON SCIENTIFIC Common Stock 101137107 15,876 117 0.74 794 8.92 0.0694
2023-02-07 2022-12-31 13F BOSTON SCIENTIFIC Common Stock 101137107 15,759 1,451 10.14 729 31.59 0.0686
2022-11-15 2022-09-30 13F BOSTON SCIENTIFIC Common Stock 101137107 14,308 2,331 19.46 554 24.22 0.0525
2022-08-12 2022-06-30 13F BOSTON SCIENTIFIC Common Stock 101137107 11,977 536 4.68 446 -11.86 0.0418
2022-05-10 2022-03-31 13F BOSTON SCIENTIFIC Common Stock 101137107 11,441 2,224 24.13 507 29.41 0.0395
2022-02-07 2021-12-31 13F BOSTON SCIENTIFIC ETF 101137107 9,217 1,552 20.25 392 17.77 0.0299
2021-11-08 2021-09-30 13F BOSTON SCIENTIFIC Common Stock 101137107 7,665 7,665 333 0.0285
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.