Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionCredit Agricole S A
Latest Disclosed Ownership2,021,577 shares
Latest Disclosed Value $ 126,853,957
Credit Agricole S A ownership in BSX / Boston Scientific Corporation

On May 15, 2026 - Credit Agricole S A filed a 13F-HR form disclosing ownership of 2,021,577 shares of Boston Scientific Corporation (MX:BSX) valued at $126,853,957 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,173,997 shares of Boston Scientific Corporation. This represents a change in shares of -7.01% during the quarter.

Credit Agricole S A 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 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)
2026-05-15 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 2,021,577 -152,420 -7.01 126,854 -38.80 0.1055
2026-02-17 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 2,173,997 76,157 3.63 207,291 1.21 0.4707
2025-11-14 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 2,097,840 292,120 16.18 204,812 12.43 0.5428
2025-05-14 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 1,805,720 -177,135 -8.93 182,161 2.85 0.5722
2025-02-14 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 1,982,855 -153,225 -7.17 177,109 -1.06 0.5190
2024-11-14 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 2,136,080 787,126 58.35 179,004 72.31 0.7689
2024-08-13 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 1,348,954 1,213,524 896.05 103,883 1,037.81 0.5579
2024-05-14 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 135,430 48,113 55.10 9,131 80.90 0.0981
2024-02-13 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 87,317 45,456 108.59 5,048 128.37 0.0576
2023-11-14 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 41,861 25,765 160.07 2,210 154.02 0.0357
2023-07-31 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 16,096 14,619 989.78 871 1,091.78 0.0157
2023-05-15 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 1,477 156 11.81 74 19.67 0.0015
2023-02-13 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 1,321 -1,119 -45.86 61 -35.79 0.0013
2022-11-14 2022-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 2,440 -9,926 -80.27 95 -79.39 0.0018
2022-11-10 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 2,440 -9,926 95 0.0004
2022-08-08 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 12,366 5,933 92.23 461 61.75 0.0113
2022-05-16 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 6,433 -10,078 -61.04 285 -59.34 0.0050
2022-02-14 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 16,511 1,256 8.23 701 5.89 0.0112
2021-11-15 2021-09-30 13F BOSTON SCIENTIFIC COM 101137107 15,255 13,483 760.89 662 771.05 0.0126
2021-08-10 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 1,772 772 77.20 76 94.87 0.0016
2021-05-17 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 1,000 1,000 39 0.0010
2021-02-12 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 0 -260 -100.00 0 -100.00
2020-11-13 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 260 0 0.00 10 11.11 0.0005
2020-08-13 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 260 0 0.00 9 12.50 0.0006
2020-05-14 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 260 -39,700 -99.35 8 -99.56 0.0007
2020-02-12 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 39,960 -125,500 -75.85 1,808 -73.15 0.1007
2019-11-08 2019-09-30 13F BOSTON SCIENTIFIC COM 101137107 165,460 -28,000 -14.47 6,733 -19.03 0.3264
2019-08-14 2019-06-30 13F BOSTON SCIENTIFIC COM 101137107 193,460 0 0.00 8,315 11.97 0.4418
2019-05-14 2019-03-31 13F BOSTON SCIENTIFIC COM 101137107 193,460 63,460 48.82 7,426 61.65 0.4056
2019-02-13 2018-12-31 13F BOSTON SCIENTIFIC COM 101137107 130,000 58,400 81.56 4,594 66.69 0.2602
2018-11-13 2018-09-30 13F BOSTON SCIENTIFIC COM 101137107 71,600 71,600 2,756 0.1319
2018-02-13 2017-12-31 13F BOSTON SCIENTIFIC COM 101137107 0 -278,644 -100.00 0 -100.00
2017-11-14 2017-09-30 13F BOSTON SCIENTIFIC COM 101137107 278,644 -290,099 -51.01 8,128 -48.45 0.0277
2017-08-14 2017-06-30 13F BOSTON SCIENTIFIC COM 101137107 568,743 79,838 16.33 15,767 29.67 0.0517
2017-05-11 2017-03-31 13F BOSTON SCIENTIFIC COM 101137107 488,905 47,795 10.84 12,159 27.44 0.0371
2017-03-02 2016-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 441,110 -39 -0.01 9,541 -9.12 0.0307
2017-02-13 2016-12-31 13F BOSTON SCIENTIFIC COM 101137107 441,110 9,541
2016-11-10 2016-09-30 13F BOSTON SCIENTIFIC COM 101137107 441,149 38,354 9.52 10,499 11.53 0.0341
2016-08-10 2016-06-30 13F BOSTON SCIENTIFIC COM 101137107 402,795 9,257 2.35 9,414 27.16 0.0363
2016-05-12 2016-03-31 13F BOSTON SCIENTIFIC COM 101137107 393,538 80,107 25.56 7,403 28.10 0.0350
2016-02-11 2015-12-31 13F BOSTON SCIENTIFIC COM 101137107 313,431 -47,894 -13.26 5,779 -2.53 0.0270
2015-11-13 2015-09-30 13F BOSTON SCIENTIFIC COM 101137107 361,325 52,582 17.03 5,929 8.49 0.0294
2015-08-12 2015-06-30 13F BOSTON SCIENTIFIC COM 101137107 308,743 16,989 5.82 5,465 5.50 0.0256
2015-05-12 2015-03-31 13F BOSTON SCIENTIFIC COM 101137107 291,754 2,753 0.95 5,180 27.81 0.0231
2015-02-09 2014-12-31 13F BOSTON SCIENTIFIC COM 101137107 289,001 46,796 19.32 4,053 41.71 0.0173
2014-11-13 2014-09-30 13F BOSTON SCIENTIFIC COM 101137107 242,205 -62,654 -20.55 2,860 -26.55 0.0122
2014-08-12 2014-06-30 13F BOSTON SCIENTIFIC COM 101137107 304,859 -114,033 -27.22 3,894 -31.24 0.0165
2014-05-12 2014-03-31 13F BOSTON SCIENTIFIC COM 101137107 418,892 37,414 9.81 5,663 23.48 0.0228
2014-02-11 2013-12-31 13F BOSTON SCIENTIFIC COM 101137107 381,478 -51,106 -11.81 4,586 -9.71 0.0189
2013-11-13 2013-09-30 13F BOSTON SCIENTIFIC COM 101137107 432,584 29,407 7.29 5,079 0.0223
2013-08-14 2013-06-30 13F BOSTON SCIENTIFIC COM 101137107 403,177 403,177 0
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
(%)
2017-08-14 2017-06-30 13F BOSTON SCIENTIFIC COM Call 0 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.