Merck & Co., Inc. 13F holders
3,863 funds reported a position in Merck & Co., Inc. in their 13F for the quarter ended 30 June 2026, together 1.98 billion shares worth $254.67 billion. Against the quarter before, 138 opened a position, 1,553 added, 1,461 trimmed and 117 sold out; together they bought a net 8.3 million shares. The largest holders: BlackRock, Inc., Vanguard Capital Management LLC and State Street Corp.
Funds holding3,863+46 on Q1 2026
Shares they held1.98Bworth $254.67 billion
Net bought on the quarter8.3M sharesabout $1.07 billion at the funds' values
Funds buying to selling1,691 to 1,578opened or added, to cut or sold
Opened 138Added 1,553Held 660Trimmed 1,461Sold out 117
What each fund did in MRK against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in MRK 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, 2,435 reported a position in Merck & Co., Inc.: 140 opened one, 907 added, 938 trimmed and 55 sold out, a net 8.1 million 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 Merck & Co., Inc. in a 13F for the quarter ended 30 September 2026, and 12 more in a 13F for an earlier quarter, the latest each has filed. The largest: Geode Capital Management, 61.6 million shares worth $8.93 billion, 0.5% of its reported book. In the quarter, 1 fund added or opened a position and 0 trimmed or sold out; together they bought a net 821,488 shares, about $119.2 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 |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 61,565,702 | $8.93 billion | 0.5% | +821,488 | added | 30 September 2026 | 13F |
| FMR LLC | 45,440,355 | $5.84 billion | 0.3% | +924,345 | added | 30 June 2026, an earlier quarter | 13F |
| Norges Bank | 36,983,784 | $4.75 billion | 0.5% | held | 30 June 2026, an earlier quarter | 13F | |
| Harris Associates | 12,073,109 | $1.55 billion | 2.1% | -293,824 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Alyeska | 2,480,590 | $318.8 million | 0.8% | +175,016 | added | 30 June 2026, an earlier quarter | 13F |
| Citadel Advisors | 1,933,667 | $248.5 million | 0.1% | -1,887,560 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Capital Research Global Investors | 1,925,013 | $247.4 million | 0.0% | -136,558 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Millennium Management | 561,302 | $72.1 million | 0.1% | -1,409,389 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Point72 Asset Management | 380,081 | $48.8 million | 0.1% | -540,996 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Fairfax Financial Holdings | 172,900 | $22.2 million | 0.8% | no change | held | 30 June 2026, an earlier quarter | 13F |
| Dodge & Cox | 135,750 | $17.4 million | 0.0% | -300 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Two Sigma Investments | 48,625 | $6.2 million | 0.0% | -15,700 | trimmed | 30 June 2026, an earlier quarter | 13F |
| Bridgewater Associates | 30,254 | $3.9 million | 0.0% | +30,254 | new | 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. | 226,999,837 | 11.45% | $29.17 billion | 0.43% | +1,169,507 | 13F |
| Vanguard Capital Management LLC | 161,323,174 | 8.14% | $20.73 billion | 0.44% | +335,550 | 13F |
| State Street Corp. | 120,413,256 | 6.07% | $15.57 billion | 0.46% | +1,087,583 | 13F |
| Wellington Management Group LLP | 86,249,283 | 4.35% | $11.08 billion | 1.91% | +1,934,312 | 13F |
| Vanguard Portfolio Management LLC | 67,738,969 | 3.42% | $8.70 billion | 0.39% | +434,664 | 13F |
| Geode Capital Management, LLC | 60,744,214 | 3.06% | $7.79 billion | 0.42% | +1,186,060 | 13F |
| Charles Schwab Investment Management Inc. | 54,365,289 | 2.74% | $6.99 billion | 0.93% | +4,600,064 | 13F |
| Morgan Stanley | 48,641,158 | 2.45% | $6.25 billion | 0.33% | +1,008,671 | 13F |
| FMR LLC | 45,440,355 | 2.29% | $5.84 billion | 0.25% | +924,345 | 13F |
| JPMorgan Chase & Co. | 43,886,420 | 2.21% | $5.68 billion | 0.33% | -9,086,563 | 13F |
| Fisher Asset Management, LLC | 38,516,263 | 1.94% | $4.95 billion | 1.47% | +12,079,979 | 13F |
| Norges Bank | 36,983,784 | 1.87% | $4.75 billion | 0.47% | 13F | |
| Bank of America Corp. | 30,535,208 | 1.54% | $3.92 billion | 0.25% | -239,013 | 13F |
| Northern Trust Corp. | 26,275,718 | 1.33% | $3.38 billion | 0.39% | -814,305 | 13F |
| Goldman Sachs Group Inc. | 22,075,139 | 1.11% | $2.84 billion | 0.30% | +1,941,760 | 13F |
| Franklin Resources Inc. | 19,548,585 | 0.99% | $2.51 billion | 0.55% | +3,281,380 | 13F |
| UBS AM, a distinct business unit of UBS Asset Management Americas LLC | 19,547,171 | 0.99% | $2.51 billion | 0.46% | -867,648 | 13F |
| Legal & General Group Plc | 18,873,343 | 0.95% | $2.43 billion | 0.51% | -665,202 | 13F |
| Invesco Ltd. | 18,611,171 | 0.94% | $2.39 billion | 0.19% | -3,243,930 | 13F |
| Price T Rowe Associates Inc. | 18,518,796 | 0.93% | $2.38 billion | 0.24% | -4,524,046 | 13F |
| Bank of New York Mellon Corp | 18,340,173 | 0.92% | $2.36 billion | 0.39% | -373,190 | 13F |
| Dimensional Fund Advisors LP | 17,486,486 | 0.88% | $2.25 billion | 0.41% | +2,030,447 | 13F |
| Ameriprise Financial Inc. | 17,387,435 | 0.88% | $2.24 billion | 0.45% | +1,124,727 | 13F |
| Capital International Investors | 15,386,689 | 0.78% | $1.98 billion | 0.41% | +14,516,428 | 13F |
| Royal Bank of Canada | 14,293,086 | 0.72% | $1.84 billion | 0.31% | +1,091,364 | 13F |
| Vanguard Fiduciary Trust Co. | 13,869,309 | 0.70% | $1.78 billion | 0.39% | -94,870 | 13F |
| State Farm Mutual Automobile Insurance Co. | 13,794,969 | 0.70% | $1.77 billion | 1.21% | no change | 13F |
| UBS Group AG | 13,744,783 | 0.69% | $1.77 billion | 0.28% | -188,847 | 13F |
| Amundi | 12,342,274 | 0.62% | $1.59 billion | 0.38% | -1,422,680 | 13F |
| AllianceBernstein L.P. | 13,131,942 | 0.66% | $1.58 billion | 0.52% | +1,830,456 | 13F |
| Harris Associates L P | 12,073,109 | 0.61% | $1.55 billion | 2.06% | -293,824 | 13F |
| Deutsche Bank AG | 11,964,180 | 0.60% | $1.54 billion | 0.45% | -576,594 | 13F |
| Wells Fargo & Company | 11,658,434 | 0.59% | $1.50 billion | 0.26% | +211,589 | 13F |
| Nuveen, LLC | 9,662,399 | 0.49% | $1.24 billion | 0.30% | -437,365 | 13F |
| Stifel Financial Corp. | 8,169,394 | 0.41% | $1.05 billion | 0.87% | -122,432 | 13F |
| AQR Capital Management LLC | 8,134,262 | 0.41% | $1.04 billion | 0.36% | -494,224 | 13F |
| HSBC Holdings PLC | 7,734,965 | 0.39% | $994.1 million | 0.48% | +100,853 | 13F |
| Barrow Hanley Mewhinney & Strauss LLC | 7,331,418 | 0.37% | $942.1 million | 2.86% | -586,448 | 13F |
| PNC Financial Services Group, Inc. | 7,286,803 | 0.37% | $936.4 million | 0.46% | -243,638 | 13F |
| Swiss National Bank | 6,973,251 | 0.35% | $896.1 million | 0.47% | -310,900 | 13F |
| Barclays PLC | 6,793,897 | 0.34% | $873.0 million | 0.28% | -763,621 | 13F |
| Grantham, Mayo, Van Otterloo & Co. LLC | 6,785,008 | 0.34% | $871.9 million | 1.96% | -228,769 | 13F |
| Aristotle Capital Management, LLC | 6,578,570 | 0.33% | $845.4 million | 1.77% | -315,862 | 13F |
| Voya Investment Management LLC | 6,484,756 | 0.33% | $833.3 million | 0.79% | +1,325,632 | 13F |
| Swedbank AB | 6,360,649 | 0.32% | $817.3 million | 0.70% | -731,062 | 13F |
| Raymond James Financial Inc. | 6,236,773 | 0.31% | $801.4 million | 0.22% | -348,741 | 13F |
| Mitsubishi UFJ Asset Management Co., Ltd. | 6,184,340 | 0.31% | $794.6 million | 0.44% | +402,011 | 13F |
| Sumitomo Mitsui Trust Group, Inc. | 6,169,107 | 0.31% | $792.7 million | 0.45% | -100,209 | 13F |
| National Pension Service | 5,791,782 | 0.29% | $744.2 million | 0.48% | +29,696 | 13F |
| Vanguard Asset Management, Ltd | 5,593,255 | 0.28% | $718.7 million | 0.49% | +589,632 | 13F |
The 50 largest of the 3,863 funds that reported a position in MRK 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 MRK
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Puts | 3,756,900 | $482.8 million | 30 June 2026 | 13F |
| Citadel Advisors | Calls | 3,485,700 | $447.9 million | 30 June 2026 | 13F |
| Millennium Management | Puts | 1,220,800 | $156.9 million | 30 June 2026 | 13F |
| Millennium Management | Calls | 332,300 | $42.7 million | 30 June 2026 | 13F |
| Point72 Asset Management | Calls | 102,400 | $13.2 million | 30 June 2026 | 13F |
| Point72 Asset Management | Puts | 70,200 | $9.0 million | 30 June 2026 | 13F |
| Two Sigma Investments | Calls | 67,900 | $8.7 million | 30 June 2026 | 13F |
| Two Sigma Investments | Puts | 49,300 | $6.3 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 |
|---|---|---|---|---|---|---|---|
| 30 April 2026 | 13G | Vanguard Capital Management and 1 other | 186.3 million | 7.5% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 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 |
|---|---|---|---|
| 31 August 2026 | 2,002 | $148.35 | SEC |
| 28 August 2026 | 642 | $149.54 | SEC |
| 27 August 2026 | 16 | $153.10 | SEC |
| 26 August 2026 | 192 | $156.45 | SEC |
| 25 August 2026 | 2 | $150.66 | SEC |
| 24 August 2026 | 13,443 | $152.55 | SEC |
| 20 August 2026 | 365 | $152.20 | SEC |
| 13 August 2026 | 78,575 | $132.92 | SEC |
| 12 August 2026 | 19 | $130.42 | SEC |
| 10 August 2026 | 38 | $128.58 | SEC |
| 7 August 2026 | 1 | $128.37 | SEC |
| 6 August 2026 | 9,572 | $128.33 | SEC |
| 28 July 2026 | 12,660 | $130.76 | SEC |
| 24 July 2026 | 534 | $130.48 | SEC |
| 21 July 2026 | 31 | $124.40 | SEC |
| 20 July 2026 | 68,205 | $127.50 | 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.