Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionValeo Financial Advisors, LLC
Latest Disclosed Ownership12,565 shares
Latest Disclosed Value $ 788,511
Valeo Financial Advisors, LLC ownership in BSX / Boston Scientific Corporation

On May 8, 2026 - Valeo Financial Advisors, LLC filed a 13F-HR form disclosing ownership of 12,565 shares of Boston Scientific Corporation (MX:BSX) valued at $788,511 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 20,639 shares of Boston Scientific Corporation. This represents a change in shares of -39.12% during the quarter.

Valeo Financial Advisors, LLC has a history of taking positions in derivatives of the underlying security (BSX) in the form of stock options. The firm currently holds call options representing 700 of underlying shares valued at $43,925 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:BSX / Boston Scientific Corporation Historical Put/Call Ratio
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)
2026-05-08 2026-03-31 13F BOSTON SCIENTIFIC Stock 101137107 12,565 -8,074 -39.12 789 -59.94 0.0188
2026-02-04 2025-12-31 13F BOSTON SCIENTIFIC Stock 101137107 20,639 -1,957 -8.66 1,968 -10.83 0.0437
2025-11-03 2025-09-30 13F BOSTON SCIENTIFIC Stock 101137107 22,596 45 0.20 2,206 -8.92 0.0502
2025-09-12 2025-06-30 13F/A-1 BOSTON SCIENTIFIC Stock 101137107 22,551 930 4.30 2,422 11.10 0.0595
2025-07-22 2025-06-30 13F BOSTON SCIENTIFIC Stock 101137107 22,038 417 2,367 0.0569
2025-04-30 2025-03-31 13F BOSTON SCIENTIFIC Stock 101137107 21,621 1,644 8.23 2,180 22.20 0.0608
2025-01-30 2024-12-31 13F BOSTON SCIENTIFIC Stock 101137107 19,977 -375 -1.84 1,784 4.63 0.0496
2024-10-10 2024-09-30 13F BOSTON SCIENTIFIC Stock 101137107 20,352 49 0.24 1,705 9.09 0.0486
2024-07-10 2024-06-30 13F BOSTON SCIENTIFIC Stock 101137107 20,303 -948 -4.46 1,564 1.10 0.0489
2024-04-25 2024-03-31 13F/A-1 BOSTON SCIENTIFIC Stock 101137107 21,251 165 0.78 1,546 26.93 0.0554
2024-04-19 2024-03-31 13F BOSTON SCIENTIFIC Stock 101137107 21,076 -10 1,443 0.0497
2024-01-29 2023-12-31 13F BOSTON SCIENTIFIC Stock 101137107 21,086 2,980 16.46 1,219 27.54 0.0492
2023-10-20 2023-09-30 13F BOSTON SCIENTIFIC Stock 101137107 18,106 4,424 32.33 956 29.05 0.0436
2023-07-14 2023-06-30 13F BOSTON SCIENTIFIC Stock 101137107 13,682 1,134 9.04 740 18.02 0.0338
2023-04-17 2023-03-31 13F BOSTON SCIENTIFIC Stock 101137107 12,548 3,517 38.94 628 50.36 0.0302
2023-02-09 2022-12-31 13F BOSTON SCIENTIFIC Stock 101137107 9,031 -3,935 -30.35 418 -16.93 0.0229
2022-10-31 2022-09-30 13F BOSTON SCIENTIFIC Stock 101137107 12,966 12,966 502 0.0320
2022-08-03 2022-06-30 13F BOSTON SCIENTIFIC Stock 101137107 0 -5,843 -100.00 0 -100.00
2022-04-28 2022-03-31 13F BOSTON SCIENTIFIC Stock 101137107 5,843 484 9.03 259 13.60 0.0132
2022-01-07 2021-12-31 13F BOSTON SCIENTIFIC Stock 101137107 5,359 120 2.29 228 0.44 0.0123
2021-11-02 2021-09-30 13F BOSTON SCIENTIFIC Stock 101137107 5,239 318 6.46 227 8.10 0.0130
2021-07-22 2021-06-30 13F BOSTON SCIENTIFIC Stock 101137107 4,921 85 1.76 210 12.30 0.0127
2021-04-12 2021-03-31 13F BOSTON SCIENTIFIC Stock 101137107 4,836 -203 -4.03 187 3.31 0.0086
2021-02-11 2020-12-31 13F BOSTON SCIENTIFIC Stock 101137107 5,039 0 0.00 181 -6.22 0.0093
2020-10-28 2020-09-30 13F BOSTON SCIENTIFIC Stock 101137107 5,039 -306 -5.72 193 2.66 0.0169
2020-07-20 2020-06-30 13F BOSTON SCIENTIFIC Stock 101137107 5,345 -155 -2.82 188 -5.53 0.0171
2020-04-13 2020-03-31 13F BOSTON SCIENTIFIC Stock 101137107 5,500 -1,104 -16.72 199 -33.44 0.0212
2020-01-24 2019-12-31 13F BOSTON SCIENTIFIC Stock 101137107 6,604 490 8.01 299 20.08 0.0290
2019-10-15 2019-09-30 13F BOSTON SCIENTIFIC Stock 101137107 6,114 1,741 39.81 249 32.45 0.0275
2019-07-10 2019-06-30 13F BOSTON SCIENTIFIC Stock 101137107 4,373 0 0.00 188 11.90 0.0215
2019-04-12 2019-03-31 13F BOSTON SCIENTIFIC Stock 101137107 4,373 144 3.41 168 12.75 0.0204
2019-01-30 2018-12-31 13F BOSTON SCIENTIFIC Stock 101137107 4,229 -246 -5.50 149 -8.02 0.0209
2018-11-01 2018-09-30 13F BOSTON SCIENTIFIC Stock 101137107 4,475 62 1.40 162 10.20 0.0219
2018-08-14 2018-06-30 13F BOSTON SCIENTIFIC Stock 101137107 4,413 -838 -15.96 147 2.80 0.0206
2018-04-12 2018-03-31 13F BOSTON SCIENTIFIC Stock 101137107 5,251 175 3.45 143 13.49 0.0229
2018-02-09 2017-12-31 13F BOSTON SCIENTIFIC CORP COM Stock 101137107 5,076 330 6.95 126 -8.70 0.0207
2017-11-15 2017-09-30 13F/A-1 BOSTON SCIENTIFIC CORP COM Stock 101137107 4,746 4,746 138 0.0312
2017-11-14 2017-09-30 13F BOSTON SCIENTIFIC CORP COM Stock 101137107 4,746 138
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-08 2026-03-31 13F BOSTON SCIENTIFIC Stock Call 700 44 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-04-30 2025-03-31 13F BOSTON SCIENTIFIC Stock Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-01-30 2024-12-31 13F BOSTON SCIENTIFIC Stock Put 1,500 0.00 134 6.40 n/a n/a n/a
2024-10-10 2024-09-30 13F BOSTON SCIENTIFIC Stock Put 1,500 0.00 126 n/a n/a n/a
2024-07-10 2024-06-30 13F BOSTON SCIENTIFIC Stock Put 1,500 -50.00 0 n/a n/a n/a
2024-04-25 2024-03-31 13F/A BOSTON SCIENTIFIC Stock Put 3,000 0.00 0 n/a n/a n/a
2024-04-19 2024-03-31 13F BOSTON SCIENTIFIC Stock Put 3,000 0 n/a n/a n/a
2024-01-29 2023-12-31 13F BOSTON SCIENTIFIC Stock Put 3,000 0.00 0 n/a n/a n/a
2023-10-20 2023-09-30 13F BOSTON SCIENTIFIC Stock Put 3,000 0 n/a n/a n/a
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.