PROTHENA CORP PUBLIC LTD CO

PRTA · Nasdaq · SIC 2834: Pharmaceutical Preparations · Market Cap: $0.6B · 67 employees
247
SEC Filings
$8.29
Close 2026-09-25
67
Employees

Business Summary

Prothena Corporation plc is a late-stage clinical biotechnology company focused on protein dysregulation, developing therapies for neurodegenerative and rare peripheral amyloid diseases. Its pipeline includes prasinezumab (Parkinson's disease), coramitug (ATTR amyloidosis), BMS-986446 (Alzheimer's disease), and PRX019 (neurodegenerative diseases). The company also develops CYTOPE technology targeting intracellular disease pathways and PRX012, an anti-amyloid beta antibody. Programs are both wholly-owned and partnered with Roche, Novo Nordisk, and Bristol Myers Squibb.

Latest Stock Quote

PRTA 2026-09-25 $8.29 O:$8.38 H:$8.52 L:$8.185 Vol:0.5M VWAP:$8.3167
origin leaf: null

Next Earnings

Q2 FY2026 — expected 2026-08-16

Annual Reports (10-K)

FiledPeriodAccessionSourceFull Text
2026-02-272025-12-310001559053-26-000008EDGAR75K words
2025-02-272024-12-310001559053-25-000009EDGAR82K words
2024-02-222023-12-310001559053-24-000008EDGAR80K words
2023-02-282022-12-310001559053-23-000005EDGAR84K words
2022-02-252021-12-310001559053-22-000008EDGAR—
2021-02-262020-12-310001559053-21-000008EDGAR—
2020-03-032019-12-310001559053-20-000005EDGAR—
2019-03-152018-12-310001559053-19-000007EDGAR—
2018-02-262017-12-310001559053-18-000008EDGAR—
2017-02-272016-12-310001559053-17-000005EDGAR—

Quarterly Reports (10-Q)

FiledPeriodAccessionSourceFull Text
2026-08-062026-06-300001559053-26-000022EDGAR52K words
2025-11-062025-09-300001559053-25-000044EDGAR53K words
2025-08-042025-06-300001559053-25-000031EDGAR53K words
2025-05-082025-03-310001559053-25-000023EDGAR53K words
2024-11-122024-09-300001559053-24-000032EDGAR54K words
2024-08-082024-06-300001559053-24-000025EDGAR54K words
2024-05-082024-03-310001559053-24-000014EDGAR53K words
2023-11-022023-09-300001559053-23-000033EDGAR56K words
2023-08-032023-06-300001559053-23-000026EDGAR55K words
2023-05-042023-03-310001559053-23-000016EDGAR53K words
2022-11-032022-09-300001559053-22-000045EDGAR—
2022-08-082022-06-300001559053-22-000032EDGAR—

Recent Current Reports (8-K)

FiledAccessionSourceFull Text
2026-08-060001559053-26-000021EDGAR3K words
2026-02-270001559053-26-000009EDGAR1K words
2026-02-190001559053-26-000003EDGAR3K words
2025-12-120001559053-25-000049EDGAR1K words
2025-11-190001559053-25-000047EDGAR1K words
2025-11-060001559053-25-000042EDGAR3K words
2025-08-270001193125-25-189765EDGAR2K words
2025-08-060001193125-25-174061EDGAR1K words
2025-08-040001559053-25-000029EDGAR3K words
2025-07-300001193125-25-169367EDGAR9K words

247 total filings indexed. 215 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR

Sector Peers

SXTP — 60 DEGREES PHARMACEUTICALS, INC. ABT — ABBOTT LABORATORIES ABEO — ABEONA THERAPEUTICS INC. ABVC — ABVC BIOPHARMA, INC. ACIU — AC Immune SA ACAD — ACADIA PHARMACEUTICALS INC ACTU — ACTUATE THERAPEUTICS, INC. ADCT — ADC Therapeutics SA

Tags

neurodegenerative-diseases rare-peripheral-amyloid-diseases parkinson's-disease attr-amyloidosis alzheimer's-disease amyotrophic-lateral-sclerosis-(als)

Company Identity

CIK0001559053
TickerPRTA
ExchangeNasdaq
SIC2834: Pharmaceutical Preparations
IncorporatedL2
Websitehttps://www.prothena.com
Listed2012-12-18

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This is a static snapshot. For live, structured JSON with cryptographic provenance chain:

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JSON Profile Stock Quote Origin Record
Origin Provenance
page leaf: a04affb859b2169c699465fdbb44aa5013704a0a142f3b27da8b961e798014c4
parent: bdc26ce45f704a6c5fa681ea867b50388937a8f69a6d96dd0473296540b0cf1d
content hash: 5853beed964cb6a59770d791486b6958de3348d0afc51c11fa13a9bb5ca326c5
signed: 2026-09-29T19:02:46.630Z
sources: 22 verified data leaves
chain: SEC.gov PEM → origin.rootz.global extraction → this page
verify: sha256(content_hash + parent + timestamp) = leaf

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