Boston Scientific Corporation
DE ˙ XTRA ˙ FR0010424135
41,05 € ↓ -0,25 (-0,61%)
2026-06-04
AKTIENPREIS
SecurityDE:BSX / Boston Scientific Corporation
InstitutionMorgan Stanley
Latest Disclosed Ownership22,266,664 shares
Latest Disclosed Value $ 1,397,233,394
Morgan Stanley reports 3.02% decrease in ownership of BSX / Boston Scientific Corporation

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 22,266,664 shares of Boston Scientific Corporation (DE:BSX) valued at $1,197,946,523 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 22,960,556 shares of Boston Scientific Corporation. This represents a change in shares of -3.02% during the quarter. The current value of the position is $914,046,557 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)
2026-05-15 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 22,266,664 -693,892 -3.02 1,397,233 -36.18 0.0842
2026-05-27 2025-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 22,960,556 2,246,308 10.84 2,189,289 8.26 0.1307
2026-02-13 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 22,960,556 2,246,308 2,189,289 0.1307
2026-05-27 2025-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 20,714,248 450,584 2.22 2,022,332 -7.08 0.1224
2025-11-14 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 20,714,248 450,584 2,022,332 0.1224
2025-08-15 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 20,263,664 1,226,748 6.44 2,176,521 13.33 0.1418
2025-05-15 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 19,036,916 -1,443,859 -7.05 1,920,444 4.98 0.1373
2025-05-15 2024-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 20,480,775 1,405,614 7.37 1,829,343 14.44 0.1282
2025-02-14 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 20,480,775 1,405,614 1,829,343 0.1282
2025-05-14 2024-09-30 13F/A-2 BOSTON SCIENTIFIC COM 101137107 19,075,161 149,267 0.79 1,598,499 9.68 0.1159
2025-02-14 2024-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 19,075,161 149,267 1,598,499 0.1159
2024-11-14 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 19,075,161 149,267 1,598,499 0.0138
2025-05-14 2024-06-30 13F/A-2 BOSTON SCIENTIFIC COM 101137107 18,925,894 961,111 5.35 1,457,483 18.46 0.1128
2024-10-17 2024-06-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 18,925,894 961,111 1,457,483 0.1128
2024-08-14 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 18,925,894 961,111 1,457,483 0.1128
2024-10-17 2024-03-31 13F/A-2 BOSTON SCIENTIFIC COM 101137107 17,964,783 -796,798 -4.25 1,230,408 13.44 0.0987
2024-08-16 2024-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 17,964,783 -796,798 1,230,408 0.0116
2024-05-15 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 17,964,783 -796,798 1,230,408 0.0987
2024-08-16 2023-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 18,761,581 -2,438,758 -11.50 1,084,607 -3.11 0.0956
2024-02-13 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 18,761,581 -2,438,758 1,084,607 0.0956
2023-11-15 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 21,200,339 481,891 2.33 1,119,378 -0.11 0.1138
2023-08-14 2023-06-30 13F BOSTON SCIENTIFIC COM 101137107 20,718,448 386,987 1.90 1,120,661 10.17 0.1104
2023-05-15 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 20,331,461 1,086,407 5.65 1,017,183 14.23 0.1091
2023-02-14 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 19,245,054 6,842,597 55.17 890,469 85.38 0.1011
2022-11-14 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 12,402,457 1,537,156 14.15 480,347 18.62 0.0655
2022-10-27 2022-06-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 10,865,301 6,142,145 130.04 404,950 93.58 0.0526
2022-08-15 2022-06-30 13F BOSTON SCIENTIFIC COM 101137107 10,865,301 6,142,145 404,950 0.0106
2022-10-27 2022-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 4,723,156 -144,627 -2.97 209,187 1.16 0.0282
2022-05-13 2022-03-31 13F BOSTON SCIENTIFIC COM 101137107 4,723,156 -144,627 209,187 0.0282
2022-02-14 2021-12-31 13F BOSTON SCIENTIFIC COM 101137107 4,867,783 92,629 1.94 206,783 -0.20 0.0255
2021-11-15 2021-09-30 13F BOSTON SCIENTIFIC COM 101137107 4,775,154 167,459 3.63 207,193 5.16 0.0279
2021-08-23 2021-06-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 4,607,695 476,827 11.54 197,022 23.40 0.0260
2021-08-16 2021-06-30 13F BOSTON SCIENTIFIC COM 101137107 4,607,695 476,827 197,022 0.0054
2021-05-17 2021-03-31 13F BOSTON SCIENTIFIC COM 101137107 4,130,868 -2,146,162 -34.19 159,658 -29.25 0.0235
2021-02-16 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 6,277,030 1,613,187 34.59 225,658 26.63 0.0349
2020-11-13 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 4,663,843 295,689 6.77 178,206 16.20 0.0345
2020-08-14 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 4,368,154 206,563 4.96 153,366 12.94 0.0339
2020-05-26 2020-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 4,161,591 -3,306,420 -44.27 135,792 -59.79 0.0369
2020-05-15 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 4,161,591 -3,306,420 135,792 10,431.6564
2020-02-14 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 7,468,011 727,425 10.79 337,705 23.13 0.0785
2019-11-14 2019-09-30 13F BOSTON SCIENTIFIC COM 101137107 6,740,586 -97,640 -1.43 274,274 -6.68 0.0726
2019-08-14 2019-06-30 13F BOSTON SCIENTIFIC COM 101137107 6,838,226 -30,582 -0.45 293,909 11.49 0.0782
2019-05-15 2019-03-31 13F BOSTON SCIENTIFIC COM 101137107 6,868,808 -791,002 -10.33 263,625 -2.61 0.0746
2019-02-14 2018-12-31 13F BOSTON SCIENTIFIC COM 101137107 7,659,810 702,325 10.09 270,698 1.06 0.0810
2019-04-23 2018-09-30 13F/A-2 BOSTON SCIENTIFIC COM 101137107 6,957,485 -559,899 -7.45 267,863 8.97 0.0670
2018-11-20 2018-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 6,957,485 0 267,863 0.0670
2018-11-14 2018-09-30 13F BOSTON SCIENTIFIC COM 101137107 6,957,485 -559,899 267,863
2019-04-23 2018-06-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 7,517,384 4,013,765 114.56 245,818 156.81 0.0664
2018-08-14 2018-06-30 13F BOSTON SCIENTIFIC COM 101137107 7,517,384 4,013,765 245,818
2019-04-23 2018-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 3,503,619 -292,742 -7.71 95,720 1.71 0.0266
2018-05-14 2018-03-31 13F BOSTON SCIENTIFIC COM 101137107 3,503,619 -292,742 95,720
2019-04-23 2017-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 3,796,361 650,427 20.68 94,111 2.55 0.0258
2018-02-14 2017-12-31 13F BOSTON SCIENTIFIC COM 101137107 3,796,361 650,427 94,111
2017-11-14 2017-09-30 13F BOSTON SCIENTIFIC COM 101137107 3,145,934 48,809 1.58 91,768 6.89 0.0275
2017-08-11 2017-06-30 13F BOSTON SCIENTIFIC COM 101137107 3,097,125 -647,255 -17.29 85,852 -7.81 0.0259
2017-05-22 2017-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 3,744,380 1,458,906 63.83 93,124 88.38 0.0286
2017-05-12 2017-03-31 13F BOSTON SCIENTIFIC COM 101137107 3,744,380 93,124
2017-02-22 2016-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 2,285,474 86,009 3.91 49,434 -5.57 0.0162
2017-02-13 2016-12-31 13F BOSTON SCIENTIFIC COM 101137107 2,285,474 49,434
2016-11-10 2016-09-30 13F BOSTON SCIENTIFIC COM 101137107 2,199,465 -333,406 -13.16 52,350 -11.56 0.0179
2016-08-12 2016-06-30 13F BOSTON SCIENTIFIC COM 101137107 2,532,871 923,375 57.37 59,193 95.52 0.0214
2016-05-12 2016-03-31 13F BOSTON SCIENTIFIC COM 101137107 1,609,496 -310,258 -16.16 30,275 -14.48 0.0117
2016-02-09 2015-12-31 13F BOSTON SCIENTIFIC COM 101137107 1,919,754 194,734 11.29 35,401 25.06 0.0128
2016-02-08 2015-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 1,725,020 -819,948 -32.22 28,307 -37.16 0.0105
2015-11-09 2015-09-30 13F BOSTON SCIENTIFIC COM 101137107 1,725,020 28,307
2015-08-12 2015-06-30 13F BOSTON SCIENTIFIC COM 101137107 2,544,968 -382,438 -13.06 45,046 -13.31 0.0156
2015-05-14 2015-03-31 13F BOSTON SCIENTIFIC COM 101137107 2,927,406 487,926 20.00 51,962 60.76 0.0191
2015-02-13 2014-12-31 13F BOSTON SCIENTIFIC COM 101137107 2,439,480 141,104 6.14 32,322 19.08 0.0118
2014-12-16 2014-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 2,298,376 -240,755 -9.48 27,144 -16.28 0.0104
2014-11-14 2014-09-30 13F BOSTON SCIENTIFIC COM 101137107 2,298,376 27,144
2014-08-12 2014-06-30 13F BOSTON SCIENTIFIC COM 101137107 2,539,131 1,164,802 84.75 32,423 74.48 0.0555
2014-05-13 2014-03-31 13F BOSTON SCIENTIFIC COM 101137107 1,374,329 -1,385,388 -50.20 18,583 -43.98 0.0078
2014-02-13 2013-12-31 13F BOSTON SCIENTIFIC COM 101137107 2,759,717 -425,565 -13.36 33,172 -11.30 0.0141
2013-11-13 2013-09-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 3,185,282 986,193 44.85 37,396 83.45 0.0177
2013-08-08 2013-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 2,199,089 2,199,089 20,385 0.0103
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.