Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionFullerton Fund Management Co Ltd
Latest Disclosed Ownership3,195 shares
Latest Disclosed Value $ 200,486
Fullerton Fund Management Co Ltd reports 99.47% decrease in ownership of BSX / Boston Scientific Corporation

On May 15, 2026 - Fullerton Fund Management Co Ltd filed a 13F-HR form disclosing ownership of 3,195 shares of Boston Scientific Corporation (MX:BSX) valued at $200,486 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 598,174 shares of Boston Scientific Corporation. This represents a change in shares of -99.47% 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)
2026-05-15 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 3,195 -594,979 -99.47 200 -99.65 0.0161
2026-02-17 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 598,174 387,761 184.29 57,036 177.65 2.4938
2025-11-14 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 210,413 -495,626 -70.20 20,543 -72.91 0.7937
2025-08-14 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 706,039 27,188 4.01 75,836 10.74 3.0684
2025-05-15 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 678,851 -874,305 -56.29 68,482 -50.64 4.3973
2025-02-14 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 1,553,156 533,346 52.30 138,728 62.33 4.8453
2024-11-14 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 1,019,810 812,742 392.50 85,460 435.93 3.5918
2024-08-14 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 207,068 7,159 3.58 15,946 16.47 0.7157
2024-05-15 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 199,909 199,909 13,692 0.6487
2023-11-14 2023-09-30 13F BOSTON SCIENTIFIC COR COM 101137107 0 -27,817 -100.00 0 -100.00
2023-08-14 2023-06-30 13F BOSTON SCIENTIFIC COR COM 101137107 27,817 27,817 1,505 0.1051
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.