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Merck & Co. Inc.

MRKNYSETrackedESG Rated: 2/2 ProvidersMarket Data VerifiedHealth CarePharmaceuticalsMSCI: ASustainalytics: 18.8 · Low

Coverage
Rated universe Carries an MSCI or Sustainalytics observation.
ESG profile reviewed
Last editorial update to this profile.
Quote
Last verified closeObservation time is shown beside the price.
Methodology
How we rateProvider ratings are shown separately, never blended.

Market overview

USD 148.78

Up+USD 0.80 (+0.54%) Day change

Last verified close · As of · USD · Market data via Massive Stock Widgets

The market is closed. This is the last verified closing quote, not an intraday price.

Open
USD 148.06
Previous close
USD 147.98
Day high
USD 149.94
Day low
USD 147.48
Volume
8,262,778
Market cap
USD 367,065,792,512
Price chart · 1 Year
Merck & Co. Inc. 1 Year price chartMerck & Co. Inc., nyse:MRK, 1 Year price chart in USD. Start USD 77.60, end USD 147.98, high USD 156.45, low USD 77.60, up.
Period1 YearFirst closeUSD 77.60Last closeUSD 147.98Maximum closeUSD 156.45Minimum closeUSD 77.60Period change+USD 70.38Period percentage change+90.70%Chart as ofSep 24, 2026, 1:30 PM GMT+0000
View Chart Data
Representative chart points — 24 of 250
Date and time Open High Low Close Volume
USD 79.78 USD 79.88 USD 77.58 USD 77.60 14,923,800
USD 87.51 USD 88.30 USD 87.03 USD 88.00 7,226,600
USD 86.69 USD 87.37 USD 85.80 USD 86.75 8,319,600
USD 100.73 USD 105.84 USD 100.71 USD 105.66 22,225,500
USD 98.44 USD 99.14 USD 97.58 USD 99.01 11,808,200
USD 106.85 USD 107.59 USD 106.43 USD 106.62 8,086,900
USD 108.97 USD 111.23 USD 107.95 USD 111.01 11,964,600
USD 108.59 USD 110.54 USD 107.95 USD 110.27 19,060,600
USD 121.50 USD 123.33 USD 121.03 USD 121.41 10,102,300
USD 119.67 USD 120.97 USD 118.61 USD 119.83 9,334,100
USD 115.06 USD 115.56 USD 113.35 USD 114.50 6,736,300
USD 120.37 USD 121.65 USD 119.22 USD 120.87 6,387,900
USD 119.15 USD 119.36 USD 116.75 USD 117.10 7,392,000
USD 113.67 USD 114.07 USD 112.83 USD 113.15 7,910,400
USD 112.56 USD 115.10 USD 112.13 USD 114.24 7,555,400
USD 117.16 USD 120.55 USD 117.09 USD 120.26 15,933,900
USD 113.97 USD 115.63 USD 113.00 USD 115.48 10,521,200
USD 128.34 USD 128.99 USD 125.14 USD 125.99 7,910,200
USD 127.82 USD 131.04 USD 127.82 USD 130.48 8,531,300
USD 127.84 USD 128.75 USD 126.68 USD 128.58 7,347,500
USD 149.12 USD 154.49 USD 148.59 USD 152.55 15,976,200
USD 151.00 USD 156.92 USD 150.66 USD 156.45 14,005,100
USD 148.41 USD 149.60 USD 146.28 USD 148.46 11,187,000
USD 148.17 USD 151.46 USD 147.90 USD 147.98 10,312,300

Company Profile & Business Model Overview

Merck & Co. Inc. is a leading company in its sector with strong market presence and growth prospects.

Sustainability Strengths & Catalysts (Pros)

  • Diversified global health care company with strong research & development capabilities
  • Leading position in the vaccine market with blockbuster products such as Gardasil 9
  • A strong commitment to environmental, social, and governance (ESG) issues

Material Risks & Governance Concerns (Cons)

  • The company is highly dependent on patented drugs, which are subject to generic competition
  • Merck has been involved in several major litigation cases in recent years

Related ESG Peer Equities

Companies in Health Care evaluated across carbon intensity, social metrics, and board governance.

Explore Health Care Peers →

ESG & Sustainability Rating Breakdown

Synthesized multi-provider rating across Environmental, Social, and Corporate Governance dimensions.

Audited Methodology

MSCI ESG Rating

A

MSCI ESG industry rating benchmark.

Sustainalytics Risk Score

18.8

Low

Data integrity and methodology

MSCI and Sustainalytics ratings are shown separately with their own observation dates; they are not blended into one score, and providers can disagree. Market quotes are delayed or last-close values, and every snapshot states its source and observation time. Read the full rating methodology.

FAQ

Frequently Asked Questions

Direct answers on sustainability scores, risk methodologies, and peer rankings.

What is Merck & Co. Inc. (MRK)'s ESG rating and sustainability score?

Merck & Co. Inc. (MRK) currently holds an MSCI ESG rating of A and a Sustainalytics ESG Risk Score of 18.8 (Audited Risk Band). Ratings evaluate environmental emissions, labor standards, board independence, and regulatory compliance.

Is Merck & Co. Inc. considered an ESG leader or laggard in Health Care?

Merck & Co. Inc. is classified as an Average ESG performer by MSCI with a A rating, indicating performance in line with mainstream sector peers with opportunities for further disclosure and risk management.

What are the main ESG risks and controversies for Merck & Co. Inc.?

Key material risks for Merck & Co. Inc. include: The company is highly dependent on patented drugs, which are subject to generic competition; Merck has been involved in several major litigation cases in recent years. Investors should evaluate whether corporate mitigation plans adequately address these vulnerabilities.

How does The Impact Investor evaluate ESG stock profiles?

The Impact Investor presents audited third-party ratings from MSCI and Sustainalytics alongside delayed market data and financial fundamentals. We do not blend ratings into proprietary black-box scores, and ratings are never modified by advertising or affiliate relationships.