Boston Scientific Corporation
US ˙ NYSE ˙ US1011371077

SecurityBSX / Boston Scientific Corporation
InstitutionAperio Group, LLC
Latest Disclosed Ownership648,532 shares
Latest Disclosed Value $ 23,315,000
Aperio Group, LLC reports 13.39% decrease in ownership of BSX / Boston Scientific Corporation

On February 5, 2021 - Aperio Group, LLC filed a 13F-HR form disclosing ownership of 648,532 shares of Boston Scientific Corporation (US:BSX) valued at $23,314,725 USD as of December 31, 2020. The entity filed a previous 13F-HR on November 6, 2020 disclosing 748,818 shares of Boston Scientific Corporation. This represents a change in shares of -13.39% during the quarter. The current value of the position is $31,486,229 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)
2021-02-05 2020-12-31 13F BOSTON SCIENTIFIC COM 101137107 648,532 -100,286 -13.39 23,315 -18.51 0.0690
2020-11-06 2020-09-30 13F BOSTON SCIENTIFIC COM 101137107 748,818 25,716 3.56 28,612 12.69 0.0966
2020-08-13 2020-06-30 13F BOSTON SCIENTIFIC COM 101137107 723,102 13,103 1.85 25,389 9.59 0.0938
2020-05-05 2020-03-31 13F BOSTON SCIENTIFIC COM 101137107 709,999 -66,805 -8.60 23,167 -34.05 0.1023
2020-02-13 2019-12-31 13F BOSTON SCIENTIFIC COM 101137107 776,804 -7,745 -0.99 35,127 10.04 0.1262
2019-11-06 2019-09-30 13F BOSTON SCIENTIFIC COM 101137107 784,549 13,506 1.75 31,923 -3.67 0.1262
2019-07-30 2019-06-30 13F BOSTON SCIENTIFIC COM 101137107 771,043 18,861 2.51 33,140 14.79 0.1353
2019-05-13 2019-03-31 13F BOSTON SCIENTIFIC COM 101137107 752,182 41,384 5.82 28,869 14.92 0.1246
2019-05-06 2018-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 710,798 49,134 7.43 25,120 -1.39 0.1268
2019-02-14 2018-12-31 13F BOSTON SCIENTIFIC COM 101137107 711,968 50,304 25,161
2019-05-06 2018-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 661,664 14,068 2.17 25,474 20.30 0.1124
2018-10-17 2018-09-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 661,664 14,068 25,474
2019-05-06 2018-06-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 647,596 74,481 13.00 21,176 35.25 0.1013
2018-07-30 2018-06-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 647,596 74,481 21,176
2019-05-01 2018-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 573,115 53,708 10.34 15,657 21.60 0.0779
2018-05-08 2018-03-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 573,115 53,708 15,658
2019-05-01 2017-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 519,407 2,830 0.55 12,876 -14.55 0.0665
2018-02-02 2017-12-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 519,407 2,830 12,876
2019-05-01 2017-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 516,577 57,485 12.52 15,069 18.41 0.0851
2017-10-25 2017-09-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 516,577 57,485 15,069
2019-04-22 2017-06-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 459,092 45,335 10.96 12,726 23.67 0.0780
2017-07-18 2017-06-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 459,092 45,335 12,726
2019-04-22 2017-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 413,757 32,405 8.50 10,290 24.74 0.0704
2017-05-05 2017-03-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 413,757 32,405 10,290
2019-04-22 2016-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 381,352 -54,069 -12.42 8,249 -20.40 0.0631
2017-02-14 2016-12-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 381,352 -54,069 8,249
2019-04-12 2016-09-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 435,421 31,151 7.71 10,363 9.70 0.0750
2016-11-01 2016-09-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 435,421 31,151 10,363
2019-04-12 2016-06-30 13F/A-1 BOSTON SCIENTIFIC COM 101137107 404,270 38,322 10.47 9,447 37.25 0.0738
2016-08-12 2016-06-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 404,270 38,322 9,448
2019-04-12 2016-03-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 365,948 56,127 18.12 6,883 20.48 0.0589
2016-04-28 2016-03-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 365,948 56,127 6,883
2016-01-21 2015-12-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 309,821 31,265 11.22 5,713 24.98 0.0523
2015-10-19 2015-09-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 278,556 36,084 14.88 4,571 6.50 0.0465
2015-07-29 2015-06-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 242,472 36,335 17.63 4,292 17.30 0.0443
2015-04-29 2015-03-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 206,137 206,137 0.00 3,659 0.0410
2015-01-30 2014-12-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 0 -177,386 -100.00 0 -100.00
2014-10-21 2014-09-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 177,386 -7,108 -3.85 2,095 -11.08 0.0283
2014-07-23 2014-06-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 184,494 13,637 7.98 2,356 1.99 0.0342
2014-04-25 2014-03-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 170,857 2,310 19.07 0.0325
2014-01-30 2013-12-31 13F BOSTON SCIENTIFIC COR COMMON 101137107 1,940 16.10 0.0301
2013-10-24 2013-09-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 142,334 36,589 34.60 1,671 70.51 0.0322
2013-07-19 2013-06-30 13F BOSTON SCIENTIFIC COR COMMON 101137107 105,745 105,745 980 0.0233
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.