MRK
Merck & Co., Inc.
stockNYSE
At CloseOct 21, 2026 3:59:57 PM EDT
149.88USD+1.065%(+1.58)9,004,018
Pre-marketOct 21, 2026 9:26:30 AM EDT
147.10USD-0.809%(-1.20)
After-hoursOct 21, 2026 4:11:30 PM EDT
149.80USD-0.057%(-0.09)
MRK Stock Splits
| Ex-Date | Ratio | Shares | Type |
|---|---|---|---|
| 1999-02-17 | 2-for-1 | ×2 | Forward |