보스턴 사이언티픽 코퍼레이션
DE ˙ XTRA ˙ FR0010424135
€41.05 ↓ -0.25 (-0.61%)
2026-06-04
주가
SecurityDE:BSX / Boston Scientific Corporation
InstitutionAssetmark, Inc
Latest Disclosed Ownership145,679 shares
Latest Disclosed Value $ 9,141,352
Assetmark, Inc reports 36.90% increase in ownership of BSX / Boston Scientific Corporation

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 145,679 shares of Boston Scientific Corporation (DE:BSX) valued at $7,837,530 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 106,409 shares of Boston Scientific Corporation. This represents a change in shares of 36.90% during the quarter. The current value of the position is $5,980,123 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.

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)
2026-05-06 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 145,679 39,270 36.90 9,141 -9.91 0.0186
2026-01-23 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 106,409 -9,204 -7.96 10,146 -10.11 0.0207
2025-11-06 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 115,613 -82,501 -41.64 11,287 -46.96 0.0242
2025-08-04 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 198,114 19,026 10.62 21,279 17.78 0.0502
2025-05-06 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 179,088 2,624 1.49 18,066 14.62 0.0496
2025-02-06 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 176,464 23,654 15.48 15,762 23.08 0.0428
2024-11-01 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 152,810 16,986 12.51 12,806 22.43 0.0367
2024-08-13 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 135,824 7,407 5.77 10,460 18.92 0.0323
2024-05-07 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 128,417 -380 -0.30 8,795 18.13 0.0286
2024-02-09 2023-12-31 13F BOSTON SCIENTIFIC COM 101137107 128,797 11,069 9.40 7,446 19.77 0.0269
2023-10-27 2023-09-30 13F BOSTON SCIENTIFIC COM 101137107 117,728 44,876 61.60 6,216 57.77 0.0249
2023-08-11 2023-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 72,852 8,112 12.53 3,941 21.68 0.0155
2023-05-05 2023-03-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 64,740 11,540 21.69 3,239 31.57 0.0134
2023-02-10 2022-12-31 13F BOSTON SCIENTIFIC COM 101137107 53,200 14,912 38.95 2,462 65.95 0.0107
2022-11-01 2022-09-30 13F BOSTON SCIENTIFIC COM 101137107 38,288 13,362 53.61 1,483 59.63 0.0069
2022-08-03 2022-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 24,926 17,464 234.04 929 181.52 0.0042
2022-05-13 2022-03-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 7,462 6,541 710.21 330 746.15 0.0014
2022-02-14 2021-12-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 921 860 1,409.84 39 1,200.00 0.0002
2021-11-12 2021-09-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 61 0 0.00 3 0.00 0.0000
2021-08-16 2021-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 61 61 3 0.0000
2020-08-11 2020-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 0 -29,029 -100.00 0 -100.00
2020-05-12 2020-03-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 29,029 28,288 3,817.54 947 2,685.29 0.0080
2020-02-11 2019-12-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 741 725 4,531.25 34 3,300.00 0.0003
2019-11-13 2019-09-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 16 0 0.00 1 0.00 0.0000
2019-08-14 2019-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 16 0 0.00 1 0.00 0.0000
2019-05-14 2019-03-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 16 0 0.00 1 0.00 0.0000
2019-02-13 2018-12-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 16 0 0.00 1 0.00 0.0000
2018-11-13 2018-09-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 16 0 0.00 1 0.00 0.0000
2018-08-01 2018-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 16 0 0.00 1 0.00 0.0000
2018-05-16 2018-03-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 16 -612 -97.45 0 -100.00
2018-02-13 2017-12-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 628 339 117.30 16 100.00 0.0002
2017-11-08 2017-09-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 289 192 197.94 8 166.67 0.0001
2017-08-14 2017-06-30 13F BOSTON SCIENTIFIC CORP COM COM 101137107 97 97 -66.44 3 -62.50 0.0000
2017-09-15 2017-03-31 13F/A-1 BOSTON SCIENTIFIC CORP COM COM 101137107 0 -36,381 -100.00 0 -100.00
2017-09-15 2016-12-31 13F/A-1 BOSTON SCIENTIFIC CORP COM COM 101137107 36,381 36,381 787 0.0116
2017-02-14 2016-12-31 13F BOSTON SCIENTIFIC CORP COM COM 101137107 36,381 787 0.0116
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.