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Compare · MRK vs SONN

MRK vs SONN

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

Summary

  • Both MRK and SONN operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $204.35B, about 11497.1x SONN ($17.8M).
  • Over the past year, MRK is up 34.4% and SONN is down 13.9% - MRK leads by 48.3 points.
  • MRK has hit the wire 9 times in the past 4 weeks while SONN has been quiet.
  • MRK has more recent analyst coverage (25 ratings vs 4 for SONN).
PerformanceMRK+37.84%SONN-13.85%
2025-09-17+0.00%2026-04-24
MetricMRKSONN
Company
Merck & Company Inc.
Sonnet BioTherapeutics Holdings Inc.
Price
$111.84-2.43%
$1.27-58.94%
Market cap
$204.35B
$17.8M
1M return
-6.32%
-74.45%
1Y return
+34.42%
-13.85%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NYSE
NASDAQ
IPO
News (4w)
9
0
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.

SONN

Sonnet BioTherapeutics Holdings Inc.

Sonnet BioTherapeutics Holdings, Inc., a clinical stage oncology-focused biotechnology company, develops platform for biologic medicines of single or bispecific action. The company develops fully human albumin binding technology, which utilizes human single chain antibodies fragment that binds to and hitch-hikes on human serum albumin for transport to target tissues. Its lead candidate is SON-1010, a fully human version of interleukin 12 for the treatment non-small cell lung cancer, and head and neck cancer. The company is also developing SON-080, a fully human version of interleukin 6 for chemotherapy-induced peripheral neuropathy and diabetic peripheral neuropathy. It has a license agreement with New Life Therapeutics PTE, LTD. to develop and commercialize pharmaceutical preparations containing a specific recombinant human interleukin 6. Sonnet BioTherapeutics Holdings, Inc. is based in Princeton, New Jersey.

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