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Compare · MRK vs SIGA

MRK vs SIGA

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

Summary

  • Both MRK and SIGA operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $294.03B, about 949.0x SIGA ($309.8M).
  • Over the past year, MRK is up 47.0% and SIGA is down 33.6% - MRK leads by 80.5 points.
  • MRK has been more active in the news (23 items in the past 4 weeks vs 8 for SIGA).
  • MRK has more recent analyst coverage (25 ratings vs 0 for SIGA).
PerformanceMRK+46.96%SIGA-33.59%
2025-06-16+0.00%2026-06-12
MetricMRKSIGA
Company
Merck & Company Inc.
SIGA Technologies Inc.
Price
$119.03-1.42%
$4.32+0.35%
Market cap
$294.03B
$309.8M
1M return
+4.89%
+0.23%
1Y return
+46.96%
-33.59%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NYSE
NASDAQ
IPO
News (4w)
23
8
Recent ratings
25
0
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.

SIGA

SIGA Technologies Inc.

SIGA Technologies, Inc., a commercial-stage pharmaceutical company, focuses on the health security and infectious disease markets in the United States. Its lead product is TPOXX, an orally administered antiviral drug for the treatment of human smallpox disease caused by variola virus. SIGA Technologies, Inc. has a strategic partnership with Cipla Therapeutics to deliver sustained innovation and access to antibacterial drugs primarily against biothreats. The company was founded in 1995 and is headquartered in New York, New York.

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