# MERCK & CO INC COM

MERCK & CO INC COM is a security (CUSIP 58933Y105) tracked across SEC portfolio filings. 3,951 institutional managers reported $222.9B on Form 13F as of 2026-06-30; 248 registered fund positions totaling $13.2B via N-PORT as of 2026-06-30.

## Summary

- Issuer: MERCK & CO INC
- Class: COM
- CUSIP: 58933Y105
- Asset category: EC
- 13F holders: 3,951
- 13F value: $222.9B
- 13F period: 2026-06-30
- N-PORT fund positions: 248
- N-PORT value: $13.2B
- N-PORT report: 2026-06-30

## Top institutional holders (Form 13F)

_Showing 15 of 3,951 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $27.2B | 225,830,330 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $26.8B | 254,322,763 |
| STATE STREET CORP | BOSTON, MA | $14.5B | 119,325,673 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $10.1B | 84,314,971 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $7.1B | 59,558,154 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $6.3B | 52,972,983 |
| [CHARLES SCHWAB INVESTMENT MANAGEMENT INC](https://search.stillhousedata.com/firm/106753) | SAN FRANCISCO, CA | $6.0B | 49,765,225 |
| MORGAN STANLEY | NEW YORK, NY | $5.7B | 47,632,487 |
| FMR LLC | BOSTON, MA | $5.4B | 44,516,010 |
| [Fisher Asset Management, LLC](https://search.stillhousedata.com/firm/107342) | PLANO, TX | $4.9B | 38,516,263 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $3.7B | 30,774,221 |
| NORTHERN TRUST CORP | CHICAGO, IL | $3.3B | 27,090,023 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $2.6B | 20,133,379 |
| UBS ASSET MANAGEMENT AMERICAS INC | CHICAGO, IL | $2.5B | 20,414,819 |
| Bank of New York Mellon Corp | NEW YORK, NY | $2.4B | 18,340,173 |

## Top fund holders (N-PORT)

_Showing 15 of 248 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | State Street(R) SPDR(R) S&P 500(R) ETF Trust | $3.5B | 53.36% |
| [VANGUARD HEALTH CARE FUND](https://search.stillhousedata.com/fund/S000002922) | VANGUARD SPECIALIZED FUNDS | $2.0B | 541.44% |
| SPDR DOW JONES INDUSTRIAL AVERAGE ETF TRUST | SPDR DOW JONES INDUSTRIAL AVERAGE ETF TRUST | $578.1M | 135.34% |
| [Washington Mutual Investors Fund](https://search.stillhousedata.com/fund/S000009388) | Washington Mutual Investors Fund | $429.5M | 20.01% |
| [T. Rowe Price Health Sciences Fund, Inc.](https://search.stillhousedata.com/fund/S000002088) | T. ROWE PRICE HEALTH SCIENCES FUND, INC. | $374.9M | 344.13% |
| [VANGUARD WINDSOR FUND](https://search.stillhousedata.com/fund/S000004417) | VANGUARD WINDSOR FUNDS | $357.4M | 147.38% |
| [Fidelity Series Value Discovery Fund](https://search.stillhousedata.com/fund/S000039216) | Fidelity Devonshire Trust | $344.6M | 215.96% |
| [BlackRock Equity Dividend Fund](https://search.stillhousedata.com/fund/S000002243) | BlackRock Equity Dividend Fund | $301.6M | 153.14% |
| [Franklin Rising Dividends Fund](https://search.stillhousedata.com/fund/S000006858) | Franklin Managed Trust | $259.2M | 100.56% |
| [Capital Income Builder](https://search.stillhousedata.com/fund/S000009000) | Capital Income Builder | $237.5M | 18.73% |
| [Smead Value Fund](https://search.stillhousedata.com/fund/S000047006) | Smead Funds Trust | $229.8M | 591.27% |
| [Franklin Mutual Global Discovery Fund](https://search.stillhousedata.com/fund/S000007861) | Franklin Mutual Series Funds | $223.4M | 248.85% |
| [T. Rowe Price Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002125) | T. ROWE PRICE VALUE FUND, INC. | $195.2M | 61.23% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $178.6M | 49.23% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $167.4M | 28.43% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/58933Y105.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.