Boston Scientific Corp. 13F holders
1,492 funds reported a position in Boston Scientific Corp. in their 13F for the quarter ended 30 June 2026, together 1.33 billion shares worth $57.48 billion. Against the quarter before, 109 opened a position, 584 added, 615 trimmed and 326 sold out; together they sold a net 32.7 million shares. The largest holders: BlackRock, Inc., Vanguard Capital Management LLC and State Street Corp.
Funds holding1,492-197 on Q1 2026
Shares they held1.33Bworth $57.48 billion
Net sold on the quarter32.7M sharesabout $1.41 billion at the funds' values
Funds buying to selling693 to 941opened or added, to cut or sold
Opened 109Added 584Held 170Trimmed 615Sold out 326
What each fund did in BSX against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in BSX in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
4,696 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 777 reported a position in Boston Scientific Corp.: 96 opened one, 283 added, 270 trimmed and 76 sold out, a net 401,134 shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 1 reported a position in Boston Scientific Corp. in a 13F for the quarter ended 30 September 2026, and 10 more in a 13F for an earlier quarter, the latest each has filed. The largest: FMR LLC, 45.7 million shares worth $1.95 billion, 0.1% of its reported book (its 13F for the quarter ended 30 June 2026). Sold out: Lone Pine Capital. In the quarter, 1 fund added or opened a position and 0 trimmed or sold out; together they bought a net 1.0 million shares, about $44.7 million at the funds' own value per share on 30 September 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| FMR LLC | 45,702,845 | $1.95 billion | 0.1% | -28,523,550 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Geode Capital Management | 34,468,097 | $1.50 billion | 0.1% | +1,027,995 | added | 30 September 2026 | 13F |
| Norges Bank | 21,170,029 | $903.5 million | 0.1% | held | 30 June 2026, an earlier quarter | 13F | |
| Two Sigma Investments | 19,359,023 | $826.2 million | 0.6% | +9,947,792 | added | 30 June 2026, an earlier quarter | 13F |
| Capital Research Global Investors | 14,180,571 | $605.3 million | 0.1% | +7,099,684 | added | 30 June 2026, an earlier quarter | 13F |
| Citadel Advisors | 4,987,748 | $212.9 million | 0.1% | +770,434 | added | 30 June 2026, an earlier quarter | 13F |
| Millennium Management | 5,437,567 | $210.7 million | 0.1% | +1,099,763 | added | 30 June 2026, an earlier quarter | 13F |
| Renaissance Technologies | 2,412,005 | $102.9 million | 0.1% | -740,000 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Bridgewater Associates | 442,036 | $18.9 million | 0.1% | +365,044 | added | 30 June 2026, an earlier quarter | 13F |
| Point72 Asset Management | 365,241 | $15.6 million | 0.0% | -3,322,074 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Dodge & Cox | 87,485 | $3.7 million | 0.0% | -1,400 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Lone Pine Capital | 0 | $0 | 0.0% | -104,655 | exited | 30 June 2026, an earlier quarter | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 129,680,916 | 9.72% | $5.53 billion | 0.08% | -2,141,121 | 13F |
| Vanguard Capital Management LLC | 97,087,553 | 7.28% | $4.14 billion | 0.09% | +675,985 | 13F |
| State Street Corp. | 70,111,196 | 5.25% | $2.99 billion | 0.09% | +2,124,349 | 13F |
| Primecap Management Co. | 50,520,914 | 3.79% | $2.16 billion | 1.27% | +17,991,140 | 13F |
| FMR LLC | 45,702,845 | 3.43% | $1.95 billion | 0.09% | -28,523,550 | 13F |
| Massachusetts Financial Services Co. | 24,859,191 | 1.86% | $1.50 billion | 0.48% | +13,862,619 | 13F |
| Geode Capital Management, LLC | 33,440,102 | 2.51% | $1.42 billion | 0.08% | +154,345 | 13F |
| Vanguard Portfolio Management LLC | 29,792,794 | 2.23% | $1.27 billion | 0.06% | -3,417 | 13F |
| D. E. Shaw & Co., Inc. | 25,457,409 | 1.91% | $1.09 billion | 0.70% | +1,145,057 | 13F |
| JPMorgan Chase & Co. | 23,907,838 | 1.79% | $1.04 billion | 0.06% | -9,442,319 | 13F |
| Arrowstreet Capital, Limited Partnership | 23,293,913 | 1.75% | $994.2 million | 0.44% | +9,402,245 | 13F |
| Norges Bank | 21,170,029 | 1.59% | $903.5 million | 0.09% | 13F | |
| Two Sigma Investments, LP | 19,359,023 | 1.45% | $826.2 million | 0.64% | +9,947,792 | 13F |
| Morgan Stanley | 18,947,147 | 1.42% | $808.7 million | 0.04% | -3,319,517 | 13F |
| Jupiter Topco LLC | 18,822,853 | 1.41% | $803.4 million | 0.33% | first 13F | 13F |
| Bollard Group LLC | 18,420,720 | 1.38% | $786.2 million | 23.93% | -111,453 | 13F |
| Goldman Sachs Group Inc. | 16,954,342 | 1.27% | $723.6 million | 0.08% | -1,937,282 | 13F |
| Capital World Investors | 16,812,257 | 1.26% | $717.6 million | 0.09% | +1,502,519 | 13F |
| UBS Group AG | 16,352,420 | 1.23% | $697.9 million | 0.11% | +1,527,758 | 13F |
| Wellington Management Group LLP | 15,301,828 | 1.15% | $653.1 million | 0.11% | -3,531,578 | 13F |
| Amundi | 14,296,121 | 1.07% | $610.2 million | 0.15% | +173,208 | 13F |
| Capital Research Global Investors | 14,180,571 | 1.06% | $605.3 million | 0.08% | +7,099,684 | 13F |
| Invesco Ltd. | 13,800,748 | 1.03% | $589.0 million | 0.05% | +4,748,807 | 13F |
| Franklin Resources Inc. | 13,772,323 | 1.03% | $587.8 million | 0.13% | -726,418 | 13F |
| UBS AM, a distinct business unit of UBS Asset Management Americas LLC | 13,091,481 | 0.98% | $558.7 million | 0.10% | -422,290 | 13F |
| Bank of America Corp. | 13,027,783 | 0.98% | $556.0 million | 0.04% | -9,728,863 | 13F |
| Northern Trust Corp. | 12,964,638 | 0.97% | $553.3 million | 0.06% | -409,243 | 13F |
| FIL Ltd | 12,332,054 | 0.92% | $526.3 million | 0.38% | +9,117,938 | 13F |
| Jane Street Group, LLC | 12,087,991 | 0.91% | $515.9 million | 0.33% | +8,055,874 | 13F |
| Farallon Capital Management, L.l.c. | 10,521,184 | 0.79% | $449.0 million | 2.65% | +3,050,500 | 13F |
| Legal & General Group Plc | 10,119,264 | 0.76% | $431.9 million | 0.09% | -481,502 | 13F |
| AQR Capital Management LLC | 9,681,750 | 0.73% | $413.2 million | 0.14% | +4,441,914 | 13F |
| Canada Pension Plan Investment Board | 9,262,404 | 0.69% | $395.3 million | 0.22% | +1,226,457 | 13F |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 9,227,707 | 0.69% | $393.8 million | 0.31% | -4,001,937 | 13F |
| Charles Schwab Investment Management Inc. | 9,223,151 | 0.69% | $393.6 million | 0.05% | +52,971 | 13F |
| Qube Research & Technologies Ltd | 8,943,771 | 0.67% | $381.7 million | 0.42% | +3,373,891 | 13F |
| Nuveen, LLC | 8,695,119 | 0.65% | $371.1 million | 0.09% | -3,039,195 | 13F |
| Assenagon Asset Management S.A. | 8,347,118 | 0.63% | $356.3 million | 0.23% | 13F | |
| Vanguard Fiduciary Trust Co. | 8,345,428 | 0.63% | $356.2 million | 0.08% | -36,757 | 13F |
| Royal Bank of Canada | 8,100,653 | 0.61% | $345.7 million | 0.06% | +1,827,390 | 13F |
| Bank of New York Mellon Corp | 7,943,553 | 0.60% | $339.0 million | 0.06% | -1,600,322 | 13F |
| BNP Paribas Financial Markets | 7,620,469 | 0.57% | $325.2 million | 0.17% | +2,518,663 | 13F |
| Price T Rowe Associates Inc. | 7,070,412 | 0.53% | $301.8 million | 0.03% | -802,956 | 13F |
| Deutsche Bank AG | 5,957,053 | 0.45% | $254.2 million | 0.07% | -696,222 | 13F |
| Maverick Capital Ltd | 5,937,553 | 0.44% | $253.4 million | 2.29% | +1,742,464 | 13F |
| Ensign Peak Advisors, Inc | 5,881,367 | 0.44% | $251.0 million | 0.41% | +1,374,125 | 13F |
| Dimensional Fund Advisors LP | 5,824,298 | 0.44% | $248.6 million | 0.04% | -273,479 | 13F |
| BNP Paribas Asset Management Holding S.A. | 5,380,866 | 0.40% | $229.7 million | 0.23% | -1,585,363 | 13F |
| Lazard Asset Management LLC | 5,343,777 | 0.40% | $228.1 million | 0.35% | +463,273 | 13F |
| Ameriprise Financial Inc. | 5,134,220 | 0.38% | $219.1 million | 0.04% | -439,219 | 13F |
The 50 largest of the 1,492 funds that reported a position in BSX in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on BSX
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 2,701,600 | $115.3 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 2,466,000 | $105.2 million | 30 June 2026 | 13F |
| Point72 Asset Management | Calls | 360,300 | $15.4 million | 30 June 2026 | 13F |
| Millennium Management | Calls | 306,800 | $13.1 million | 30 June 2026 | 13F |
| Millennium Management | Puts | 194,500 | $8.3 million | 30 June 2026 | 13F |
| Point72 Asset Management | Puts | 151,600 | $6.5 million | 30 June 2026 | 13F |
| Two Sigma Investments | Puts | 31,000 | $1.3 million | 30 June 2026 | 13F |
| Two Sigma Investments | Calls | 30,300 | $1.3 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 6 August 2026 | 13G/A | FMR LLC and 3 others | 46.4 million | 3.1% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 6 May 2026 | 13G/A | FMR LLC and 3 others | 75.8 million | 5.1% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 April 2026 | 13G | Vanguard Capital Management and 1 other | 111.1 million | 7.5% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 24 August 2026 | 3,497 | $50.37 | SEC |
| 20 August 2026 | 28,890 | $52.01 | SEC |
| 12 August 2026 | 51 | $51.19 | SEC |
| 10 August 2026 | 100 | $49.31 | SEC |
| 4 August 2026 | 1 | $48.43 | SEC |
| 3 August 2026 | 200 | $46.73 | SEC |
| 29 July 2026 | 11,681 | $46.06 | SEC |
| 20 July 2026 | 273 | $44.03 | SEC |
| 15 July 2026 | 38 | $42.63 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.