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Merck (MRK)
NYSE
$153.33+$0.77 (+0.51%)
Price as of Aug 21, 2026 7:59 PM EDT- $367.6BMarket Cap
- 80.44%1-Year Change
- Drug Manufacturers - GeneralIndustry
Merck (MRK)
$153.33+$0.77 (+0.51%)
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. | 9.19% | 227.0M | +1.2M (+0.52%) | Jun 30, 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 |
VANGUARD CAPITAL MANAGEMENT LLC | 6.53% | 161.3M | +335,550 (+0.21%) | Jun 30, 2026 |
STATE STREET CORP | 4.88% | 120.4M | +1.1M (+0.90%) | Jun 30, 2026 |
WELLINGTON MANAGEMENT GROUP LLP | 3.49% | 86.2M | +1.9M (+2.24%) | Jun 30, 2026 |
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
- Institutions36.2B (77.73%)
- Mutual Funds10.4B (22.25%)
- Insiders5.6M (0.01%)
- Other0 (0.00%)
Insider Transactions
- 0.01% (5.6M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 5Number of InsiderSelling (last 12 months)
- $157.8MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Guindo Chirfi EVP, Access, Policy & Comms | Sell | Aug 13, 2026 | $1.4M | 10,000 | $135.00 | 36,613 |
Zachary Jennifer EVP, General Counsel | Exempt | Aug 12, 2026 | $0.00 | 41,494 | $0.00 | 0 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 12, 2026 | $1.5M | 11,099 | $131.61 | 110,767 |
Zachary Jennifer EVP, General Counsel | Exempt | Aug 12, 2026 | $0.00 | 13,433 | $0.00 | 0 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 12, 2026 | $79,222.02 | 600 | $132.04 | 110,167 |
Zachary Jennifer EVP, General Counsel | Exempt | Aug 12, 2026 | $4.9M | 41,494 | $117.89 | 112,391 |
Zachary Jennifer EVP, General Counsel | Exempt | Aug 12, 2026 | $1.1M | 13,433 | $84.71 | 125,824 |
Zachary Jennifer EVP, General Counsel | Sell | Aug 12, 2026 | $10.7M | 80,315 | $133.46 | 45,509 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 11, 2026 | $973,164.93 | 7,410 | $131.33 | 127,293 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 11, 2026 | $718,261.28 | 5,427 | $132.35 | 121,866 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 10, 2026 | $2.7M | 20,784 | $130.43 | 134,703 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 06, 2026 | $105,472.39 | 805 | $131.02 | 160,732 |
Guindo Chirfi EVP, Access, Policy & Comms | Sell | Aug 06, 2026 | $2.0M | 15,000 | $131.00 | 46,613 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 06, 2026 | $643,993.28 | 4,945 | $130.23 | 155,787 |
DeLuca Richard R. EVP&Pres, Merck Animal Heallth | Sell | Aug 06, 2026 | $39,306.99 | 300 | $131.02 | 155,487 |
Maraldo David R. EVP & Pres. MMD | Exempt | Aug 05, 2026 | $0.00 | 6,311 | $0.00 | 3,154 |
Williams David Michael EVP,Chief Info&Digital Officer | Exempt | Aug 05, 2026 | $0.00 | 4,600 | $0.00 | 0 |
Maraldo David R. EVP & Pres. MMD | Exempt | Aug 05, 2026 | $0.00 | 9,709 | $0.00 | 0 |
Williams David Michael EVP,Chief Info&Digital Officer | Exempt | Aug 05, 2026 | $0.00 | 13,542 | $0.00 | 0 |
Maraldo David R. EVP & Pres. MMD | Exempt | Aug 05, 2026 | $0.00 | 2,686 | $0.00 | 5,374 |
Williams David Michael EVP,Chief Info&Digital Officer | Exempt | Aug 05, 2026 | $0.00 | 34,705 | $0.00 | 0 |
Maraldo David R. EVP & Pres. MMD | Exempt | Aug 05, 2026 | $465,310.03 | 6,311 | $73.73 | 24,523 |
Williams David Michael EVP,Chief Info&Digital Officer | Exempt | Aug 05, 2026 | $357,052.00 | 4,600 | $77.62 | 36,316 |
Maraldo David R. EVP & Pres. MMD | Sell | Aug 05, 2026 | $812,338.67 | 6,311 | $128.72 | 18,212 |
Williams David Michael EVP,Chief Info&Digital Officer | Sell | Aug 05, 2026 | $592,345.22 | 4,600 | $128.77 | 31,716 |
Maraldo David R. EVP & Pres. MMD | Exempt | Aug 05, 2026 | $845,653.90 | 9,709 | $87.10 | 27,921 |
Williams David Michael EVP,Chief Info&Digital Officer | Exempt | Aug 05, 2026 | $1.0M | 13,542 | $75.36 | 45,258 |
Maraldo David R. EVP & Pres. MMD | Sell | Aug 05, 2026 | $1.2M | 9,709 | $128.72 | 18,212 |
Williams David Michael EVP,Chief Info&Digital Officer | Sell | Aug 05, 2026 | $1.7M | 13,542 | $128.77 | 31,716 |
Maraldo David R. EVP & Pres. MMD | Exempt | Aug 05, 2026 | $227,531.06 | 2,686 | $84.71 | 20,898 |