Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionIeq Capital, Llc
Latest Disclosed Ownership312,659 shares
Latest Disclosed Value $ 19,619,368
Ieq Capital, Llc reports 291.58% increase in ownership of BSX / Boston Scientific Corporation

On May 14, 2026 - Ieq Capital, Llc filed a 13F-HR form disclosing ownership of 312,659 shares of Boston Scientific Corporation (MX:BSX) valued at $19,619,368 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 79,845 shares of Boston Scientific Corporation. This represents a change in shares of 291.58% 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.

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)
2026-05-14 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 312,659 232,814 291.58 19,619 157.70 0.0661
2026-02-13 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 79,845 -33,942 -29.83 7,613 -31.47 0.0228
2025-11-14 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 113,787 -9,805 -7.93 11,109 -16.31 0.0337
2025-08-14 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 123,592 60,860 97.02 13,275 109.77 0.0812
2025-05-14 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 62,732 -8,149 -11.50 6,328 -0.05 0.0503
2025-02-03 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 70,881 -542 -0.76 6,331 5.78 0.0612
2024-11-14 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 71,423 8,085 12.76 5,985 22.72 0.0734
2024-08-12 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 63,338 6,182 10.82 4,878 24.60 0.0656
2024-05-09 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 57,156 5,012 9.61 3,915 29.86 0.0562
2024-02-07 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 52,144 2,006 4.00 3,014 13.86 0.0501
2023-11-06 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 50,138 -108 -0.21 2,647 -2.58 0.0538
2023-08-08 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 50,246 9,140 22.24 2,718 32.15 0.0548
2023-05-02 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 41,106 784 1.94 2,057 10.24 0.0477
2023-02-06 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 40,322 2,126 5.57 1,866 26.01 0.0522
2022-11-04 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 38,196 12,440 48.30 1,480 54.17 0.0406
2022-07-27 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 25,756 -5,138 -16.63 960 -29.88 0.0291
2022-04-26 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 30,894 7,022 29.42 1,369 35.01 0.0326
2022-01-31 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 23,872 -789 -3.20 1,014 -5.23 0.0234
2021-11-09 2021-09-30 13F BOSTON SCIENTIFIC COM 101137107 24,661 2,590 11.73 1,070 13.35 0.0284
2021-07-29 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 22,071 3,464 18.62 944 31.29 0.0277
2021-05-04 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 18,607 7,665 70.05 719 82.95 0.0297
2021-02-03 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 10,942 -4,128 -27.39 393 -31.65 0.0175
2020-11-03 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 15,070 7,488 98.76 575 116.17 0.0309
2020-07-31 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 7,582 -10,128 -57.19 266 -53.98 0.0173
2020-05-07 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 17,710 1,819 11.45 578 -19.50 0.0464
2020-02-11 2019-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 15,891 15,891 718 0.0629
2020-02-04 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 18,932 684
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.