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Compare · ATOS vs MRK

ATOS vs MRK

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

Summary

  • Both ATOS and MRK operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $294.13B, about 7762.8x ATOS ($37.9M).
  • Over the past year, ATOS is down 66.9% and MRK is up 48.3% - MRK leads by 115.2 points.
  • MRK has been more active in the news (28 items in the past 4 weeks vs 4 for ATOS).
  • MRK has more recent analyst coverage (25 ratings vs 0 for ATOS).
PerformanceATOS-66.92%MRK+48.26%
2025-06-11+0.00%2026-06-10
MetricATOSMRK
Company
Atossa Therapeutics Inc.
Merck & Company Inc.
Price
$4.39-2.44%
$119.08-0.41%
Market cap
$37.9M
$294.13B
1M return
-21.40%
+6.99%
1Y return
-66.92%
+48.26%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NASDAQ
NYSE
IPO
2012
News (4w)
4
28
Recent ratings
0
25
ATOS

Atossa Therapeutics Inc.

Atossa Therapeutics, Inc., a clinical-stage biopharmaceutical company, discovers and develops medicines in the areas of oncology and infectious diseases. The company's lead program is Endoxifen, an active metabolite of tamoxifen, which is in Phase II clinical trials to treat and prevent breast cancer. It is also developing AT-301, a proprietary drug candidate for nasal administration in patients diagnosed with COVID-19; AT-H201, a drug candidate to improve lung function in COVID-19 patients; and immunotherapy/chimeric antigen receptor therapy programs for the treatment of breast cancer. Atossa Therapeutics, Inc. has a research agreement with Dana-Farber Cancer Institute, Inc. to support research of cytokine-coated nanoparticles for the potential treatment of breast cancer. The company was formerly known as Atossa Genetics Inc. and changed its name to Atossa Therapeutics, Inc. in January 2020. Atossa Therapeutics, Inc. was founded in 2008 and is headquartered in Seattle, Washington.

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.

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