Compare · IONS vs MRK
IONS vs MRK
Side-by-side comparison of Ionis Pharmaceuticals Inc. (IONS) and Merck & Company Inc. (MRK): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both IONS and MRK operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
- MRK is the larger of the two at $385.99B, about 36.5x IONS ($10.56B).
- Over the past year, IONS is up 50.4% and MRK is up 84.0% - MRK leads by 33.6 points.
- MRK has been more active in the news (17 items in the past 4 weeks vs 2 for IONS).
- Both have 25 recent analyst ratings on file.
- Company
- Ionis Pharmaceuticals Inc.
- Merck & Company Inc.
- Price
- $63.55+2.40%
- $156.44+3.81%
- Market cap
- $10.56B
- $385.99B
- 1M return
- +13.58%
- +19.67%
- 1Y return
- +50.45%
- +84.05%
- Industry
- Biotechnology: Pharmaceutical Preparations
- Biotechnology: Pharmaceutical Preparations
- Exchange
- NASDAQ
- NYSE
- IPO
- News (4w)
- 2
- 17
- Recent ratings
- 25
- 25
Ionis Pharmaceuticals Inc.
Ionis Pharmaceuticals, Inc. discovers and develops RNA-targeted therapeutics in the United States. The company offers SPINRAZA for spinal muscular atrophy (SMA) in pediatric and adult patients; TEGSEDI, an injection for the treatment of polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults; and WAYLIVRA, a treatment for familial chylomicronemia syndrome and familial partial lipodystrophy. It is involved in developing neurology products that include Tominersen for Huntington's diseases; Tofersen for amyotrophic lateral sclerosis (ALS); IONIS-MAPTRx for Alzheimer's diseases; IONIS-C9Rx for genetic form of ALS; ION859 for Parkinson's disease; ION464 for multiple system atrophy and Parkinson's disease; ION541 for amyotrophic lateral sclerosis; and IONIS-DNM2-2.5Rx for centronuclear myopathy. The company is also developing products for cardiometabolic disease, such as IONIS-TTR-LRx for transthyretin amyloidosis and IONIS-GHR-LRx for acromegaly; IONIS-APOCIII-LRx for familial chylomicronemia syndrome and TG- driven diseases; IONIS-APOCIII-LRx for treatment resistant hypertension; Pelacarsen for Lp(a)cardiovascular disease risk reduction; Vupanorsen for sHTG/CVDRR; IONIS-FXI-LRx for clotting disorders; ION449 for cardiovascular diseases; and IONIS-GCGRRx for diabetics. In addition, it develops IONIS-ENAC-2.5Rx for cystic fibrosis and chronic obstructive pulmonary disease; IONIS-PKK-LRx for hereditary angioedema; Danvatirsen for cancer; IONIS-TMPRSS6-LRx for beta-thalassemia and iron toxicity; IONIS-HBVRx for hepatitis B virus; IONIS-AR-2.5Rx for prostate cancer; IONIS-FB-LRx for age-related macular degeneration and IgA nephropathy; and ION357 for retinitis pigmentosa. It has a collaboration agreement with AstraZeneca; GlaxoSmithKline plc; Janssen Biotech, Inc.; Bayer AG; Novartis AG; Pfizer, Inc.; Biogen Inc.; and Roche. Ionis Pharmaceuticals, Inc. was founded in 1989 and is based in Carlsbad, California.
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.
Latest IONS
- Ionis to present new data strengthening leadership in the management of severe hypertriglyceridemia (sHTG) at the European Society of Cardiology Congress 2026
- BMO Capital Markets initiated coverage on Ionis Pharma with a new price target
- Director Hayden Michael R bought $1,058,700 worth of shares (20,000 units at $52.94) (SEC Form 4)
- SEC Form S-8 filed by Ionis Pharmaceuticals Inc.
- SEC Form 10-Q filed by Ionis Pharmaceuticals Inc.
- Ionis Pharmaceuticals Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits
- Ionis announces Dr. Frank Bennett, chief scientific officer, to retire
- Ionis reports second quarter 2026 financial results and highlights progress on key programs
- SEC Form 4 filed by Director Reikes Peter N
- SEC Form 4 filed by Director Hantson Ludwig
Latest MRK
- Merck downgraded by RBC Capital Mkts with a new price target
- Merck upgraded by Morgan Stanley with a new price target
- Merck and Moderna Announce Phase 3 INTerpath-001 Trial of Intismeran Autogene Plus KEYTRUDA® Met Endpoints of Recurrence-Free Survival (RFS) and Distant Metastasis-Free Survival (DMFS) in Patients With Completely Resected Stage IIB-IV Melanoma
- EVP, Access, Policy & Comms Guindo Chirfi sold $1,350,000 worth of shares (10,000 units at $135.00), decreasing direct ownership by 21% to 36,613 units (SEC Form 4)
- EVP, General Counsel Zachary Jennifer exercised 54,927 shares at a strike of $109.78 and sold $10,718,495 worth of shares (80,315 units at $133.46), decreasing direct ownership by 36% to 45,509 units (SEC Form 4)
- EVP&Pres, Merck Animal Heallth Deluca Richard R. sold $5,942,369 worth of shares (45,320 units at $131.12), decreasing direct ownership by 29% to 110,167 units (SEC Form 4)
- Merck upgraded by Daiwa Securities with a new price target
- EVP&Pres, Merck Animal Heallth Deluca Richard R. sold $788,773 worth of shares (6,050 units at $130.38), decreasing direct ownership by 4% to 155,487 units (SEC Form 4)
- EVP & Pres. MMD Maraldo David R. exercised 18,706 shares at a strike of $82.25 and sold $2,407,797 worth of shares (18,706 units at $128.72) (SEC Form 4)
- EVP,Chief Info&Digital Officer Williams David Michael exercised 52,847 shares at a strike of $74.49 and sold $6,805,145 worth of shares (52,847 units at $128.77), increasing direct ownership by 0.00% to 31,716 units (SEC Form 4)