Merck & Co., Inc.

MRK · NYSE · Stock · Healthcare
$147.53
+3.91% today
Delayed price,

What Merck & Co. does

Merck & Co., Inc. operates as a healthcare company worldwide. It offers human health pharmaceutical for various areas under the Keytruda, Keytruda Qlex, Welireg, Gardasil, ProQuad, M-M-R II, Varivax, Vaxneuvance, Capvaxive, RotaTeq, Pneumovax 23, Bridion, Prevymis, Dificid, Zerbaxa, Winrevair, Adempas/ Verquvo, Ohtuvayre, Lagevrio, Isentress/Isentress HD, Delstrigo, Pifeltro, Belsomra, Januvia, and Janumet brands. The company also provides veterinary pharmaceuticals, vaccines and health management solutions and services, such as livestock products under the Nuflor, Bovilis/Vista, Bovilis Cryptium, Banamine, Estrumate, Matrix, Resflor, Zuprevo, Revalor, Safe-Guard, M+Pac, Porcilis, Circumvent, Nobilis/Innovax, Paracox and Coccivac, Exzolt, Slice, Imvixa, Clynav, Aquavac/Norvax, Aquaflor, Flexolt brands; Allflex Livestock Intelligence solutions; and companion animal products under the Bravecto One-Month, Bravecto Injectable/Quantum, Bravecto TriUNO, Bravecto Plus, Sentinel Spectrum, Sentinel Flavor Tabs, Numelvi, Optimmune, Nobivac NXT, GilvetMab, Otomax, Mometamax, Mometamax Ultra, Posatex, Caninsulin/Vetsulin, Panacur, Safeguard, Regumate, Prestige, Scalibor/Exspot, Sure Petcare, and Home Again brands. It has development and commercialization agreement for three of Daiichi Sankyo's deruxtecan ADC candidates; AstraZeneca PLC to co-development and co-commercialize AstraZeneca's Lynparza products for multiple cancer types; licensed to develop, manufacture and commercialize LM-299, a novel investigational PD-1/VEGF bispecific antibody from LaNova; and collaboration agreement with Eisai Co., Ltd., Bayer AG, and Ridgeback Biotherapeutics LP, as well Moderna, Inc. Merck & Co., Inc. has strategic collaboration with Infinimmune, Inc. to discover and develop antibodies against multiple therapeutic targets. The company was founded in 1891 and is headquartered in Rahway, New Jersey.

Key facts

Sector
Healthcare
Industry
Drug Manufacturers - General
Market cap
$363.97B
P/E (ttm)
117.1
Forward P/E
15.9
Dividend yield
2.39%
Beta
0.22
Profit margin
4.8%
Employees
73,000
Headquarters
Rahway, NJ, United States
Exchange
NYSE

Performance

1 Month
+0.4%
3 Months
+15.7%
6 Months
+23.9%
1 Year
+74.0%
5 Years
+96.9%
$82.0152-week range$156.92
Biggest setback — last 12 months
-10.0%
23 Feb 2026 → 4 May 2026
Fell from $123.82 to $111.38 — its sharpest sustained decline this year.
Biggest run-up — last 12 months
+79.9%
13 Oct 2025 → 17 Aug 2026
Ran from $84.79 to $152.55 — its strongest sustained advance this year.

Price outlook — trend & volatility model

▲ Trend: Uptrend
Price is above its 20-, 50- and 200-day averages, each stacked above the next — a classic technical uptrend structure.
HorizonBear case (−1σ)Base caseBull case (+1σ)
1 Month$134.95 (-8.5%)$147.53$161.27 (+9.3%)
3 Months$126.44 (-14.3%)$147.53$172.13 (+16.7%)
6 Months$118.61 (-19.6%)$147.53$183.49 (+24.4%)
12 Months$108.36 (-26.5%)$147.53$200.84 (+36.1%)
Statistical, not machine-learning: a random-walk (no assumed drift) volatility model built from this ticker's own realized price history, plus a purely descriptive moving-average trend read. Illustrative only — not a price target and not financial advice. The bear and bull cases sit one standard deviation (1σ) below and above today's price, a range that covers about 68% of the outcomes the model treats as plausible, not a 68% chance of either case. Annualized volatility used: 30.9%, blended from this ticker's own 3-month and 1-year realized price history. Base case is deliberately flat — this quantifies a possible range, not a directional prediction. See the full model, including wider (≈95%) bands →

Comparable companies

Recent headlines

Recent insider activity

Acquired 56 shares at $145.31 — Seidman Christine E, Director · 2026-10-01
Acquired 112 shares at $145.31 — Karsanbhai Surendralal Lanca, Director · 2026-10-01
Acquired 206 shares at $145.31 — Coe Mary Ellen, Director · 2026-10-01
Sold 10,000 shares at $135.00 — Guindo Chirfi, EVP, Access, Policy & Comms · 2026-08-13
Sold 135,242 shares at $133.46 — Zachary Jennifer, EVP, General Counsel · 2026-08-13
Source: SEC Form 4 filings. An "acquired" entry with no price is typically a stock award or option exercise rather than an open-market purchase. Search all insider trades →

Learn the basics

Prices and company data are delayed reference figures from public sources (Yahoo Finance, SEC EDGAR) and may be inaccurate or out of date. This page is informational only — it is not investment advice or a recommendation to buy or sell any security. Past performance does not indicate future results.