Thompson Siegel & Walmsley’s Boston Scientific BSX Stock Holding History

Thompson Siegel & Walmsley’s Portfolio BSX Stock Details BSX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$377K	Hold	8,831	–	–	0.01%	382
2026 Q1	$554K	Hold	8,831	–	–	0.01%	350
2025 Q4	$842K	Sell	8,831 -310	-3%	-$30.4K	0.01%	320
2025 Q3	$892K	Hold	9,141	–	–	0.01%	320
2025 Q2	$982K	Buy	9,141 +10	+0.1%	+$1.01K	0.02%	305
2025 Q1	$921K	Hold	9,131	–	–	0.02%	290
2024 Q4	$816K	Sell	9,131 -587	-6%	-$51.7K	0.01%	292
2024 Q3	$814K	Hold	9,718	–	–	0.01%	301
2024 Q2	$748K	Hold	9,718	–	–	0.01%	290
2024 Q1	$666K	Sell	9,718 -782	-7%	-$50.3K	0.01%	292
2023 Q4	$607K	Hold	10,500	–	–	0.01%	284
2023 Q3	$554K	Hold	10,500	–	–	0.01%	291
2023 Q2	$568K	Hold	10,500	–	–	0.01%	295
2023 Q1	$525K	Sell	10,500 -122	-1%	-$5.75K	0.01%	296
2022 Q4	$491K	Hold	10,622	–	–	0.01%	291
2022 Q3	$411K	Hold	10,622	–	–	0.01%	302
2022 Q2	$396K	Hold	10,622	–	–	0.01%	300
2022 Q1	$470K	Hold	10,622	–	–	0.01%	316
2021 Q4	$451K	Hold	10,622	–	–	0.01%	314
2021 Q3	$461K	Hold	10,622	–	–	0.01%	311
2021 Q2	$454K	Hold	10,622	–	–	0.01%	319
2021 Q1	$411K	Buy	10,622 +622	+6%	+$23.5K	0.01%	305
2020 Q4	$360K	Hold	10,000	–	–	0.01%	301
2020 Q3	$382K	Sell	10,000 -181	-2%	-$6.97K	0.01%	280
2020 Q2	$357K	Buy	10,181 +21	+0.2%	+$756	0.01%	288
2020 Q1	$332K	Hold	10,160	–	–	0.01%	290
2019 Q4	$459K	Buy	10,160 +160	+2%	+$6.7K	0.01%	319
2019 Q3	$407K	Hold	10,000	–	–	0.01%	330
2019 Q2	$430K	Hold	10,000	–	–	0.01%	333
2019 Q1	$384K	Hold	10,000	–	–	0.01%	342
2018 Q4	$353K	Hold	10,000	–	–	0.01%	340
2018 Q3	$385K	Hold	10,000	–	–	﹤0.01%	366
2018 Q2	$327K	Hold	10,000	–	–	﹤0.01%	384
2018 Q1	$273K	Hold	10,000	–	–	﹤0.01%	386
2017 Q4	$248K	Hold	10,000	–	–	﹤0.01%	401
2017 Q3	$292K	Hold	10,000	–	–	﹤0.01%	390
2017 Q2	$277K	Hold	10,000	–	–	﹤0.01%	400
2017 Q1	$249K	Hold	10,000	–	–	﹤0.01%	440
2016 Q4	$216K	Hold	10,000	–	–	﹤0.01%	407
2016 Q3	$238K	Hold	10,000	–	–	﹤0.01%	389
2016 Q2	$234K	Hold	10,000	–	–	﹤0.01%	372
2016 Q1	$188K	Hold	10,000	–	–	﹤0.01%	377
2015 Q4	$184K	Hold	10,000	–	–	﹤0.01%	376
2015 Q3	$164K	Hold	10,000	–	–	﹤0.01%	391
2015 Q2	$177K	Hold	10,000	–	–	﹤0.01%	389
2015 Q1	$178K	Hold	10,000	–	–	﹤0.01%	394
2014 Q4	$132K	Hold	10,000	–	–	﹤0.01%	413
2014 Q3	$118K	Hold	10,000	–	–	﹤0.01%	412
2014 Q2	$128K	Hold	10,000	–	–	﹤0.01%	404
2014 Q1	$135K	Hold	10,000	–	–	﹤0.01%	405
2013 Q4	$120K	Hold	10,000	–	–	﹤0.01%	409
2013 Q3	$117K	Hold	10,000	–	–	﹤0.01%	414
2013 Q2	$93K	Buy	+10,000	New	+$84.8K	﹤0.01%	431

Other funds holding BSX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS) West Sacramento, California $782B AUM 28.39% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Thompson Siegel & Walmsley's BSX Position: Q2 2026 in Review

Thompson Siegel & Walmsley held its Boston Scientific (BSX) position steady in Q2 2026 at 8,831 shares worth $377K. The position accounts for 0.01% of the portfolio, ranked #382.

Thompson Siegel & Walmsley first reported a position in BSX in Q2 2013 and has held it in 53 quarters since. The position peaked at $982K in Q2 2025. 1,470 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

Thompson Siegel & Walmsley held 8,831 shares of Boston Scientific worth $377K as of Q2 2026.
Thompson Siegel & Walmsley left its Boston Scientific share count unchanged in Q2 2026.
Boston Scientific made up 0.01% of Thompson Siegel & Walmsley's portfolio in Q2 2026, its #382 holding.
Thompson Siegel & Walmsley first reported a position in Boston Scientific in Q2 2013 and has held it in 53 quarters since.
Thompson Siegel & Walmsley's Boston Scientific position peaked at $982K in Q2 2025.
1,470 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Thompson Siegel & Walmsley's 13F filing for Q2 2026, filed 11 Aug 2026.