Boston Scientific Corporation
US ˙ NYSE ˙ US1011371077

SecurityBSX / Boston Scientific Corporation
InstitutionAvestar Capital, LLC
Latest Disclosed Ownership16,775 shares
Latest Disclosed Value $ 1,052,631
Avestar Capital, LLC reports 11.56% increase in ownership of BSX / Boston Scientific Corporation

On May 13, 2026 - Avestar Capital, LLC filed a 13F-HR form disclosing ownership of 16,775 shares of Boston Scientific Corporation (US:BSX) valued at $1,052,631 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 15,037 shares of Boston Scientific Corporation. This represents a change in shares of 11.56% during the quarter. The current value of the position is $800,000 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.

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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)
2026-05-13 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 16,775 1,738 11.56 1,053 -26.59 0.0676
2026-02-10 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 15,037 -501 -3.22 1,434 -5.47 0.0929
2025-11-07 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 15,538 -2,693 -14.77 1,517 -22.57 0.0993
2025-08-13 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 18,231 1,332 7.88 1,958 14.91 0.1338
2025-05-14 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 16,899 -482 -2.77 1,705 9.79 0.1480
2025-01-29 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 17,381 4,984 40.20 1,552 49.52 0.1319
2024-11-13 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 12,397 1,158 10.30 1,039 20.00 0.1069
2024-08-08 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 11,239 -1,122 -9.08 866 2.25 0.0889
2024-05-10 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 12,361 2,074 20.16 847 42.42 0.0888
2024-02-12 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 10,287 892 9.49 595 19.76 0.0674
2023-10-20 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 9,395 20 0.21 496 -2.17 0.0705
2023-08-02 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 9,375 1,033 12.38 507 21.58 0.0813
2023-04-20 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 8,342 560 7.20 417 15.83 0.0745
2023-01-20 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 7,782 -225 -2.81 360 16.13 0.0652
2022-10-26 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 8,007 -680 -7.83 310 -4.32 0.0790
2022-07-28 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 8,687 1,936 28.68 324 8.36 0.0798
2022-04-26 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 6,751 408 6.43 299 11.15 0.0477
2022-02-01 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 6,343 1,026 19.30 269 16.45 0.0329
2021-11-09 2021-09-30 13F BOSTON SCIENTIFIC COM 101137107 5,317 148 2.86 231 4.52 0.0295
2021-08-03 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 5,169 5,169 221 0.0296
2019-11-15 2019-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 0 -159 -100.00 0 -100.00
2019-08-06 2019-06-30 13F BOSTON SCIENTIFIC COM 101137107 159 0 0.00 5 25.00 0.0032
2019-05-09 2019-03-31 13F BOSTON SCIENTIFIC COM 101137107 159 0 0.00 4 0.00 0.0026
2019-01-25 2018-12-31 13F BOSTON SCIENTIFIC COM 101137107 159 0 0.00 4 0.00 0.0027
2018-10-23 2018-09-30 13F BOSTON SCIENTIFIC COM 101137107 159 -4 -2.45 4 100.00 0.0023
2018-08-10 2018-06-30 13F BOSTON SCIENTIFIC COM 101137107 163 -22 -11.89 2 -33.33 0.0013
2018-05-10 2018-03-31 13F BOSTON SCIENTIFIC COM 101137107 185 29 18.59 3 50.00 0.0020
2018-02-14 2017-12-31 13F BOSTON SCIENTIFIC COM 101137107 156 156 2 0.0015
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.