There is a long list of 1116 institutional holders of Boston Scientific within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of Boston Scientific by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-Boston Scientific table below, the initial column indicates the name of each top institutional holder of Boston Scientific, with a link to that fund's top holdings. The next columns indicate the amount of Boston Scientific stock held by each of the institutional holders of Boston Scientific, followed by the Boston Scientific position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
FMR LLC	138,250,950	$7,992,287	12/31/2023
BSX	138,250,950	$7,992,287	12/31/2023
BlackRock Inc.		$7,344,086	12/31/2023
BSX	126,559,832	$7,316,424	12/31/2023
Call	478,500	$27,662	12/31/2023
Vanguard Group Inc.	125,449,802	$7,252,253	12/31/2023
BSX	125,449,802	$7,252,253	12/31/2023
State Street Corp	62,334,606	$3,603,564	12/31/2023
BSX	62,334,606	$3,603,564	12/31/2023
Massachusetts Financial Services Co. MA	57,175,970	$3,305,343	12/31/2023
BSX	57,175,970	$3,305,343	12/31/2023
Primecap Management Co. CA	37,905,659	$2,191,326	12/31/2023
BSX	37,905,659	$2,191,326	12/31/2023
Wellington Management Group LLP	36,441,127	$2,106,662	12/31/2023
BSX	36,441,127	$2,106,662	12/31/2023
JPMorgan Chase & Co.		$1,652,985	12/31/2023
BSX	28,633,712	$1,655,315	12/31/2023
Put	107,500	$6,215	12/31/2023
Call	67,200	$3,885	12/31/2023
Bank of America Corp DE		$1,632,781	12/31/2023
BSX	28,147,121	$1,627,185	12/31/2023
Call	844,600	$48,826	12/31/2023
Put	747,800	$43,230	12/31/2023
Geode Capital Management LLC	27,556,215	$1,588,120	12/31/2023
BSX	27,556,215	$1,588,120	12/31/2023
Bollard Group LLC	22,391,511	$1,294,453	12/31/2023
BSX	22,391,511	$1,294,453	12/31/2023
DZ BANK AG Deutsche Zentral Genossenschafts Bank Frankfurt am Main	21,132,718	$1,221,682	12/31/2023
BSX	21,132,718	$1,221,682	12/31/2023
Janus Henderson Group PLC	19,450,617	$1,124,444	12/31/2023
BSX	19,450,617	$1,124,444	12/31/2023
Morgan Stanley	18,761,581	$1,084,607	12/31/2023
BSX	18,761,581	$1,084,607	12/31/2023
Artisan Partners Limited Partnership	17,169,938	$992,594	12/31/2023
BSX	17,169,938	$992,594	12/31/2023
Bank of New York Mellon Corp	16,967,911	$980,915	12/31/2023
BSX	16,967,911	$980,915	12/31/2023
Norges Bank	16,098,013	$930,626	12/31/2023
BSX	16,098,013	$930,626	12/31/2023
Goldman Sachs Group Inc.		$917,682	12/31/2023
BSX	16,026,493	$926,492	12/31/2023
Put	305,300	$17,649	12/31/2023
Call	152,900	$8,839	12/31/2023
Amundi	13,695,582	$811,189	12/31/2023
BSX	13,695,582	$811,189	12/31/2023
Northern Trust Corp	13,742,005	$794,425	12/31/2023
BSX	13,742,005	$794,425	12/31/2023
Legal & General Group Plc	13,524,199	$781,835	12/31/2023
BSX	13,524,199	$781,835	12/31/2023
Putnam Investments LLC	13,067,570	$755,436	12/31/2023
BSX	13,067,570	$755,436	12/31/2023
Invesco Ltd.	12,547,779	$725,387	12/31/2023
BSX	12,547,779	$725,387	12/31/2023
Vontobel Asset Management Inc.	10,974,569	$668,472	12/31/2023
BSX	10,974,569	$668,472	12/31/2023
Nuveen Asset Management LLC	10,349,228	$598,289	12/31/2023
BSX	10,349,228	$598,289	12/31/2023
Capital World Investors	9,419,829	$544,560	12/31/2023
BSX	9,419,829	$544,560	12/31/2023
Citadel Advisors LLC		$527,911	12/31/2023
BSX	8,981,534	$519,222	12/31/2023
Call	821,800	$47,508	12/31/2023
Put	671,500	$38,819	12/31/2023
Lazard Asset Management LLC	8,828,248	$510,358	12/31/2023
BSX	8,828,248	$510,358	12/31/2023
UBS Asset Management Americas Inc.	7,944,728	$459,285	12/31/2023
BSX	7,944,728	$459,285	12/31/2023
Punch & Associates Investment Management Inc.		$457,792	12/31/2023
Call	7,911	$457,335	12/31/2023
BSX	7,911	$457	12/31/2023
Holocene Advisors LP	7,885,159	$455,841	12/31/2023
BSX	7,885,159	$455,841	12/31/2023
Charles Schwab Investment Management Inc.	7,694,726	$444,832	12/31/2023
BSX	7,694,726	$444,832	12/31/2023
Ameriprise Financial Inc.	7,524,629	$435,010	12/31/2023
BSX	7,524,629	$435,010	12/31/2023
UBS Group AG		$406,222	12/31/2023
BSX	7,051,639	$407,655	12/31/2023
Put	309,400	$17,886	12/31/2023
Call	284,600	$16,453	12/31/2023
Voya Investment Management LLC	6,944,660	$401,091	12/31/2023
BSX	6,944,660	$401,091	12/31/2023
Canada Pension Plan Investment Board	6,869,660	$397,135	12/31/2023
BSX	6,869,660	$397,135	12/31/2023
Newport Trust Co	6,750,135	$390,225	12/31/2023
BSX	6,750,135	$390,225	12/31/2023
Price T Rowe Associates Inc. MD	6,303,756	$364,421	12/31/2023
BSX	6,303,756	$364,421	12/31/2023
Arrowstreet Capital Limited Partnership	6,047,814	$349,624	12/31/2023
BSX	6,047,814	$349,624	12/31/2023
FIL Ltd	5,944,746	$343,666	12/31/2023
BSX	5,944,746	$343,666	12/31/2023
Millennium Management LLC		$340,436	12/31/2023
BSX	7,368,279	$397,055	12/31/2023
Put	1,796,800	$103,873	12/31/2023
Call	817,400	$47,254	12/31/2023
Farallon Capital Management LLC	5,820,257	$336,469	12/31/2023
BSX	5,820,257	$336,469	12/31/2023
Bank of Montreal Can	5,251,181	$304,831	12/31/2023
BSX	5,251,181	$304,831	12/31/2023
Winslow Capital Management LLC	5,034,018	$291,017	12/31/2023
BSX	5,034,018	$291,017	12/31/2023
AGF Management Ltd.	4,858,818	$280,888	12/31/2023
BSX	4,858,818	$280,888	12/31/2023
Swiss National Bank	4,578,700	$264,695	12/31/2023
BSX	4,578,700	$264,695	12/31/2023
Sei Investments Co.	4,575,962	$264,535	12/31/2023
BSX	4,575,962	$264,535	12/31/2023
Dimensional Fund Advisors LP	4,529,017	$261,767	12/31/2023
BSX	4,529,017	$261,767	12/31/2023
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	4,509,128	$260,674	12/31/2023
BSX	4,509,128	$260,674	12/31/2023
Point72 Asset Management L.P.		$259,679	12/31/2023
BSX	4,710,845	$272,334	12/31/2023
Put	218,900	$12,655	12/31/2023