Who owns Merck & Co., Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MRK from SEC Form 13F filings across 3,837 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 3,837 institutions disclosed 1.98B shares of Merck & Co., Inc. worth $254.10B — about 80.1% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
3,837
13F holders
$254.10B
value, 2026 filers
80.1%
of shares outstanding (1.98B sh)
322
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MRK's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 227.0M | $29.17B | 0.4% | 9.2% | +0.5% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 161.3M | $20.73B | 0.4% | 6.5% | +0.2% |
| 3 | STATE STREET CORP | 120.4M | $15.57B | 0.5% | 4.9% | +0.9% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | 86.2M | $11.08B | 1.9% | 3.5% | +2.3% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 67.7M | $8.70B | 0.4% | 2.7% | +0.6% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 60.7M | $7.79B | 0.4% | 2.5% | +2.0% |
| 7 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 54.4M | $6.99B | 0.9% | 2.2% | +9.2% |
| 8 | MORGAN STANLEY | 48.6M | $6.25B | 0.3% | 2% | +2.1% |
| 9 | FMR LLC | 45.4M | $5.84B | 0.3% | 1.8% | +2.1% |
| 10 | JPMORGAN CHASE & CO | 43.9M | $5.68B | 0.3% | 1.8% | -17.2% |
| 11 | Fisher Asset Management, LLC | 38.5M | $4.95B | 1.5% | 1.6% | +45.7% |
| 12 | NORGES BANKNEW | 37.0M | $4.75B | 0.5% | 1.5% | new |
| 13 | BANK OF AMERICA CORP /DE/ | 30.5M | $3.92B | 0.3% | 1.2% | -0.8% |
| 14 | NORTHERN TRUST CORP | 26.3M | $3.38B | 0.4% | 1.1% | -3.0% |
| 15 | GOLDMAN SACHS GROUP INC | 22.1M | $2.84B | 0.2% | 0.9% | +9.6% |
| 16 | FRANKLIN RESOURCES INC | 19.5M | $2.51B | 0.5% | 0.8% | +20.2% |
| 17 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 19.5M | $2.51B | 0.5% | 0.8% | -4.3% |
| 18 | Legal & General Group Plc | 18.9M | $2.43B | 0.5% | 0.8% | -3.4% |
| 19 | Invesco Ltd. | 18.6M | $2.39B | 0.2% | 0.8% | -14.8% |
| 20 | PRICE T ROWE ASSOCIATES INC /MD/ | 18.5M | $2.38B | 0.2% | 0.7% | -19.6% |
| 21 | Bank of New York Mellon Corp | 18.3M | $2.36B | 0.4% | 0.7% | -2.0% |
| 22 | DIMENSIONAL FUND ADVISORS LP | 17.5M | $2.25B | 0.4% | 0.7% | +13.1% |
| 23 | AMERIPRISE FINANCIAL INC | 17.4M | $2.24B | 0.5% | 0.7% | +6.9% |
| 24 | Capital International Investors | 15.4M | $1.98B | 0.4% | 0.6% | +1668.1% |
| 25 | ROYAL BANK OF CANADA | 14.3M | $1.84B | 0.3% | 0.6% | +8.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.