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Compare · MRK vs SNSE

MRK vs SNSE

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

Summary

  • Both MRK and SNSE operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $298.33B, about 15174.9x SNSE ($19.7M).
  • Over the past year, MRK is up 50.6% and SNSE is up 112.6% - SNSE leads by 62.0 points.
  • MRK has been more active in the news (26 items in the past 4 weeks vs 12 for SNSE).
  • MRK has more recent analyst coverage (25 ratings vs 9 for SNSE).
PerformanceMRK+50.59%SNSE+112.64%
2025-06-09+0.00%2026-06-08
MetricMRKSNSE
Company
Merck & Company Inc.
Sensei Biotherapeutics Inc.
Price
$119.39-1.23%
$13.71-4.56%
Market cap
$298.33B
$19.7M
1M return
+6.32%
-47.42%
1Y return
+50.59%
+112.64%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NYSE
NASDAQ
IPO
2021
News (4w)
26
12
Recent ratings
25
9
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.

SNSE

Sensei Biotherapeutics Inc.

Sensei Biotherapeutics, Inc., a clinical-stage immunotherapy company, engages in the discovery and development of therapies with an initial focus on treatments for cancer. The company develops proprietary ImmunoPhage platform, an immunotherapy approach that is designed to utilize bacteriophage to induce a focused and coordinated innate and adaptive immune response. It is engineering ImmunoPhage product candidates to directly target antigen presenting cells and modulate the tumor microenvironment through the targeted use of nanobodies which further enhances therapeutic activity. Sensei Biotherapeutics, Inc. was formerly known as Panacea Pharmaceuticals, Inc. The company was founded in 1999 and is headquartered in Rockville, Maryland.