stockNYSE: MRK • 28 Days Updates
Merck & Co. Inc. (MRK)
Showing Closing Date Range from Sep 9 to Oct 7, 2026.
Merck (MRK) is a global pharmaceutical company developing innovative medicines, vaccines, and biologic therapies, trading on NYSE Stocks. Shares last closed at $142.79, moving -1.73% over the past week and -3.21% across 28 days. Longer term, the stock is +14.17% over 3 months, +17.60% over 6 months and +62.98% over 12 months. Peer pharmaceutical companies PFE (Pfizer) (+0.79%), MRNA (Moderna) (+44.89%), ZTS (Zoetis) (-2.39%), JNJ (Johnson & Johnson) (-3.23%) and VRTX (Vertex Pharmaceuticals) (-2.97%) moved over the same 28-day stretch, for comparison.
Investor Relations:merck.com/investor-relations
Price & Performance Trajectory
Merck & Co. Inc.NYSE: MRK
Latest Close
$142.79
28 Days Updates Trajectory
Showing Closing Date Range from Sep 9 to Oct 7, 2026.Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesMRK session performance
✓ Latest Close USD
$142.79
Latest session close
$-4.74vs period start
Period Return % % GAIN
-3.21%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$153.57 / $138.8
Period range envelope
$14.77channel spread
Total Volume SHARES
204.35M
Period turnover
Avg: 9.73M/dLiquidity
Historical Session Ledger
Daily open, high, low, and close prices with volume and period returns.
Historical Quotes & Breakdown(21 dates)
| Date | Close (USD) | Return % | High | Low | Volume |
|---|---|---|---|---|---|
| Oct 07, 2026 | $142.79 | +0.60% | $144.15 | $141.49 | 5.84M |
| Oct 06, 2026 | $141.94 | +1.72% | $142.16 | $139.74 | 8.07M |
| Oct 05, 2026 | $139.54 | -3.30% | $144.06 | $138.80 | 9.48M |
| Oct 02, 2026 | $144.30 | +0.34% | $144.35 | $142.73 | 9.66M |
| Oct 01, 2026 | $143.81 | -1.03% | $145.39 | $143.26 | 7.86M |
| Sep 30, 2026 | $145.31 | -2.66% | $149.27 | $145.26 | 10.22M |
| Sep 29, 2026 | $149.28 | +0.40% | $150.36 | $146.09 | 8.20M |
| Sep 28, 2026 | $148.69 | -0.06% | $149.19 | $146.28 | 7.70M |
| Sep 25, 2026 | $148.78 | +0.54% | $149.98 | $147.48 | 8.29M |
| Sep 24, 2026 | $147.98 | -0.07% | $151.46 | $147.90 | 10.31M |
| Sep 23, 2026 | $148.08 | -1.88% | $152.01 | $146.89 | 9.70M |
| Sep 22, 2026 | $150.91 | +0.94% | $153.57 | $148.04 | 11.10M |
| Sep 21, 2026 | $149.50 | +1.79% | $150.49 | $145.60 | 7.99M |
| Sep 18, 2026 | $146.87 | -0.19% | $147.84 | $145.74 | 31.16M |
| Sep 17, 2026 | $147.15 | +1.55% | $147.65 | $145.32 | 11.06M |
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