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Compare · MRK vs PEPG

MRK vs PEPG

Side-by-side comparison of Merck & Company Inc. (MRK) and PepGen Inc. (PEPG): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both MRK and PEPG operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $285.64B, about 2847.9x PEPG ($100.3M).
  • Over the past year, MRK is up 48.8% and PEPG is down 8.1% - MRK leads by 56.9 points.
  • MRK has been more active in the news (29 items in the past 4 weeks vs 10 for PEPG).
  • MRK has more recent analyst coverage (25 ratings vs 4 for PEPG).
PerformanceMRK+48.77%PEPG-8.09%
2025-06-03+0.00%2026-06-03
MetricMRKPEPG
Company
Merck & Company Inc.
PepGen Inc.
Price
$114.77-0.80%
$1.42-2.74%
Market cap
$285.64B
$100.3M
1M return
+1.46%
-20.67%
1Y return
+48.77%
-8.09%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NYSE
NASDAQ
IPO
2022
News (4w)
29
10
Recent ratings
25
4
MRK

Merck & Company Inc.

Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health segments. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, diabetes, and women's health, as well as vaccine products. The Animal Health segment provides discovers, develops, manufactures, and markets a range of veterinary pharmaceuticals, vaccines, and health management solutions and services, as well as a suite of digitally connected identification, traceability, and monitoring products. The company has collaborations with AstraZeneca PLC; Bayer AG; Eisai Co., Ltd.; and Ridgeback Biotherapeutics. It serves drug wholesalers and retailers, hospitals, and government agencies; managed health care providers, such as health maintenance organizations, pharmacy benefit managers, and other institutions; and physicians and physician distributors, veterinarians, and animal producers. The company has collaboration agreement with Gilead Sciences, Inc. to co-develop and co-commercialize long-acting investigational treatment combinations of Lenacapavir and Islatravir in HIV; Amathus Therapeutics to develop treatments for neurodegenerative diseases; and Linnaeus Therapeutics, Inc. to evaluate LNS8801 in combination with KEYTRUDA for patients with advanced cancer. It also has a collaboration with Biomed X Gmbh for building on ongoing research projects in the fields of oncology (DNA damage response and RNA splicing) and autoimmunity (intestinal epithelial barrier in autoimmune diseases); and a collaboration agreement with NGM Biopharmaceuticals, Inc. to focus primarily on the development of novel medicines for unmet patient needs in retinal and CVM diseases, including heart failure. Merck & Co., Inc. was founded in 1891 and is headquartered in Kenilworth, New Jersey.

PEPG

PepGen Inc.

PepGen Inc., a clinical-stage biotechnology company, focuses on the development of oligonucleotide therapeutics for use in the treatment of severe neuromuscular and neurologic diseases. The company's lead product candidate is PGN-EDO51, an EDO peptide in Phase I clinical trials to treat individuals with Duchenne muscular dystrophy (DMD). It is also developing PGN-EDODM1, an EDO peptide-conjugated PMO for the treatment of myotonic dystrophy type 1, as well as EDO therapeutic candidates, such as PGN-EDO53, PGN-EDO45, and PGN-EDO44 for the treatment of DMD. The company was founded in 2018 and is headquartered in Cambridge, Massachusetts.