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PRTA US Equity

Prothena Corp Public Ltd CoHealth Care · Pharmaceutical Preparations · CIK 1559053 · FY ends Dec 31
$9.45
+0.42 (+4.65%)
USD · as of 2026-08-21 · marketstack
DateEventWhat happened / filerSource
2026-08-1913G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by Fennell Todd W.sec.gov ↗
2026-08-1413G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by Fennell Todd W.sec.gov ↗
2026-08-068-K 2.02Results of operations and financial condition (earnings)earnings history (EARN) →sec.gov ↗
2026-08-0613G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by FMR LLCsec.gov ↗
2026-07-2913G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by BlackRock, Inc.sec.gov ↗
2026-05-158-K 5.07Submission of matters to a vote of security holderssec.gov ↗
2026-05-1513G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by Rubric Capital Management LPsec.gov ↗
2026-05-1113G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by SCULLY WILLIAM Psec.gov ↗
2026-05-078-K 2.02Results of operations and financial condition (earnings)earnings history (EARN) →sec.gov ↗
2026-02-278-K 8.01Other eventssec.gov ↗
2026-02-278-K 7.01Regulation FD disclosuresec.gov ↗
2026-02-198-K 2.02Results of operations and financial condition (earnings)earnings history (EARN) →sec.gov ↗
2026-02-1313GSchedule 13G filed — ≥5% beneficial owner (passive) · by Rubric Capital Management LPsec.gov ↗
2025-12-128-K 5.02Departure/election of directors or officers; compensationsec.gov ↗
2025-11-198-K 5.07Submission of matters to a vote of security holderssec.gov ↗
2025-11-1513G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by ADAR1 Capital Management, LLCsec.gov ↗
2025-11-1213G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by Fennell Todd W.sec.gov ↗
2025-11-1213G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by SCULLY WILLIAM Psec.gov ↗
2025-11-068-K 2.02Results of operations and financial condition (earnings)earnings history (EARN) →sec.gov ↗
2025-10-1713G/ASchedule 13G amendment — ≥5% beneficial owner (passive) · by BlackRock, Inc.sec.gov ↗
2025-08-278-K 8.01Other eventssec.gov ↗
Source: SEC EDGAR (public domain) · history starts 2025-08-27

Every row is a filed document, checked against its EDGAR index.