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Merck (MRK)
NYSE
$127.38-$2.82 (-2.17%)
Price as of Aug 03, 2026 7:10 PM EDT- $320.6BMarket Cap
- 69.70%1-Year Change
- Drug Manufacturers - GeneralIndustry
Merck (MRK)
$127.38-$2.82 (-2.17%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD GROUP INC | 10.30% | 254.3M | +2.2M (+0.86%) | Dec 31, 2025 |
BLACKROCK, INC. | 9.14% | 225.8M | +6.7M (+2.98%) | Mar 31, 2026 |
BLACKROCK FUNDING, INC. /DE | 8.99% | 222.1M | +10.0M (+4.51%) | Dec 31, 2024 |
BLACKROCK INC. | 8.39% | 207.3M | +279,840 (+0.13%) | Jun 30, 2024 |
STATE STREET CORP | 4.83% | 119.3M | -714,495 (-0.60%) | Mar 31, 2026 |
WELLINGTON MANAGEMENT GROUP LLP | 3.41% | 84.3M | -2.1M (-2.51%) | Mar 31, 2026 |
BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. | 3.06% | 75.6M | +1.2M (+1.57%) | Dec 31, 2016 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 6.78% | 167.4M | +993,676 (+0.59%) | Mar 31, 2026 |
DFA INVESTMENT DIMENSIONS GROUP INC | 1.90% | 47.0M | 0 (0.00%) | Apr 30, 2026 |
John Hancock Collateral Trust | 1.79% | 44.3M | 0 (0.00%) | Sep 30, 2021 |
FIDELITY CONCORD STREET TRUST | 1.64% | 40.6M | +351,941 (+0.87%) | May 31, 2026 |
VANGUARD SPECIALIZED FUNDS | 1.63% | 40.2M | +936,686 (+2.33%) | Apr 30, 2026 |
SCHWAB STRATEGIC TRUST | 1.54% | 37.9M | +1.4M (+3.73%) | May 31, 2026 |
VANGUARD FIXED INCOME SECURITIES FUNDS | 1.18% | 29.1M | 0 (0.00%) | Apr 30, 2026 |
Current Ownership Distribution
- Institutions34.4B (76.85%)
- Mutual Funds10.4B (23.14%)
- Insiders5.3M (0.01%)
- Other0 (0.00%)
Insider Transactions
- 0.01% (5.3M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 0Number of InsiderSelling (last 12 months)
- $0.00Amount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Seidman Christine E | Award | Jun 30, 2026 | $8,125.00 | 63 | $128.50 | 21,291 |
Coe Mary Ellen | Award | Jun 30, 2026 | $30,000.00 | 233 | $128.50 | 31,999 |
Karsanbhai Surendralal Lanca | Award | Jun 30, 2026 | $16,249.99 | 126 | $128.50 | 5,519 |