Compare · JNJ vs PRTA
JNJ vs PRTA
Side-by-side comparison of Johnson & Johnson (JNJ) and Prothena Corporation plc (PRTA): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both JNJ and PRTA operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
- JNJ is the larger of the two at $658.24B, about 1361.1x PRTA ($483.6M).
- Over the past year, JNJ is up 54.8% and PRTA is up 12.8% - JNJ leads by 42.0 points.
- JNJ has been more active in the news (11 items in the past 4 weeks vs 10 for PRTA).
- JNJ has more recent analyst coverage (25 ratings vs 22 for PRTA).
- Company
- Johnson & Johnson
- Prothena Corporation plc
- Price
- $273.23+0.07%
- $9.43+0.53%
- Market cap
- $658.24B
- $483.6M
- 1M return
- +2.75%
- +8.27%
- 1Y return
- +54.76%
- +12.80%
- Industry
- Biotechnology: Pharmaceutical Preparations
- Biotechnology: Pharmaceutical Preparations
- Exchange
- NYSE
- NASDAQ
- IPO
- News (4w)
- 11
- 10
- Recent ratings
- 25
- 22
Johnson & Johnson
Johnson & Johnson researches and develops, manufactures, and sells a range of products in the health care field worldwide. It operates through three segments: Consumer Health, Pharmaceutical, and Medical Devices. The Consumer Health segment offers baby care products under the JOHNSON'S and AVEENO Baby brands; oral care products under the LISTERINE brand; skin health/beauty products under the AVEENO, CLEAN & CLEAR, DR. CI:LABO, NEUTROGENA, and OGX brands; acetaminophen products under the TYLENOL brand; cold, flu, and allergy products under the SUDAFED brand; allergy products under the BENADRYL and ZYRTEC brands; ibuprofen products under the MOTRIN IB brand; smoking cessation products under the NICORETTE brand; and acid reflux products under the PEPCID brand. This segment also provides women's health products, such as sanitary pads and tampons under the STAYFREE, CAREFREE, and o.b. brands; wound care products comprising adhesive bandages under the BAND-AID brand; and first aid products under the NEOSPORIN brand. The Pharmaceutical segment offers products in various therapeutic areas, including immunology, infectious diseases, neuroscience, oncology, pulmonary hypertension, and cardiovascular and metabolic diseases. The Medical Devices segment provides electrophysiology products to treat cardiovascular diseases and neurovascular care products to treat hemorrhagic and ischemic stroke; orthopaedics products in support of hips, knees, trauma, spine, sports, and other; advanced and general surgery solutions that focus on breast aesthetics, ear, nose, and throat procedures; and disposable contact lenses and ophthalmic products related to cataract and laser refractive surgery under the ACUVUE brand. The company markets its products to general public, and retail outlets and distributors, as well as distributes directly to wholesalers, hospitals, and health care professionals for prescription use. Johnson & Johnson was founded in 1886 and is based in New Brunswick, New Jersey.
Prothena Corporation plc
Prothena Corporation plc, a late-stage clinical company, focuses on discovery and development of novel therapies for life-threatening diseases in the United States. The company is involved in developing PRX002/RG7935 that is in Phase 2 clinical trial for treating Parkinson's disease and other related synucleinopathies; and PRX004, an antibody that is in Phase 1 clinical trial for the treatment of ATTR amyloidosis. Its discovery-stage programs include Tau for treating Alzheimer's disease, frontotemporal dementia, progressive supranuclear palsy, chronic traumatic encephalopathy, and other tauopathies; AÃ, or Amyloid Beta, a protein for the treatment of Alzheimer's disease; TDP-43 for amyotrophic lateral sclerosis and frontotemporal dementia; and other products for neurodegenerative diseases. The company has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target alpha-synuclein; and a collaboration agreement with Bristol-Myers Squibb to develop antibodies. Prothena Corporation plc was founded in 2012 and is based in Dublin, Ireland.
Latest JNJ
- FDA approves IMAAVY® (nipocalimab-aahu) as first-ever treatment for warm autoimmune hemolytic anemia (wAIHA), representing a landmark advancement for patients
- EVP, WWC. Innovative Medicine Taubert Jennifer L exercised 15,000 shares at a strike of $115.67 and sold $3,950,400 worth of shares (15,000 units at $263.36) (SEC Form 4)
- CEO and Chairman of the Board Duato Joaquin exercised 123,291 shares at a strike of $115.67 and sold $32,199,927 worth of shares (123,291 units at $261.17) (SEC Form 4)
- Johnson & Johnson to Participate in the Morgan Stanley 24th Annual Global Healthcare Conference
- CEO and Chairman of the Board Duato Joaquin sold $12,515,010 worth of shares (48,480 units at $258.15), decreasing direct ownership by 15% to 275,967 units (SEC Form 4)
- EVP, Chief Legal Officer Forminard Elizabeth exercised 9,344 shares at a strike of $131.94 and sold $4,090,960 worth of shares (15,918 units at $257.00), decreasing direct ownership by 28% to 16,994 units (SEC Form 4)
- SEC Form 13F-HR filed by Johnson & Johnson
- A CEO With a Proven Track Record of Success in Growing and Scaling Biopharmaceutical Companies Just Appointed CEO at a Clinical-Stage Biotech, Months Before Its Pivotal Phase 3 Readout
- Johnson & Johnson to Participate in the 2026 Wells Fargo Healthcare Conference
- Every Few Decades, Aesthetics Gets a New Category. One Preclinical Company Thinks Its Extra Cellular Matrix Platform Could Create the Next One
Latest PRTA
- Large owner Scully William P bought $439,430 worth of Ordinary Shares (50,000 units at $8.79), increasing direct ownership by 7% to 800,000 units (SEC Form 4)
- SEC Form 3 filed by new insider Fennell Todd W.
- Large owner Scully William P received a gift of 336,000 units of Ordinary Shares and gifted 627,553 units of Ordinary Shares, decreasing direct ownership by 28% to 750,000 units (SEC Form 4)
- Large owner Scully William P received a gift of 251,553 units of Ordinary Shares, increasing direct ownership by 32% to 1,041,553 units (SEC Form 4)
- SEC Form 3 filed by new insider Fennell Todd W.
- Large owner Scully William P bought $323,220 worth of Ordinary Shares (37,500 units at $8.62), increasing direct ownership by 4% to 790,000 units (SEC Form 4)
- SEC Form 10-Q filed by Prothena Corporation plc
- Prothena Corporation plc filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits
- Prothena Reports Second Quarter 2026 Financial Results and Business Highlights
- Amendment: SEC Form SCHEDULE 13G/A filed by Prothena Corporation plc