Company · PRTA · CIK 1559053

Prothena Corp Public Ltd Co (PRTA) SEC filings and CIK.

PRTA’s SEC Central Index Key (CIK) is 0001559053, or 1559053 without leading zeros. The SEC’s ticker file lists it as PROTHENA CORP PUBLIC LTD CO.

Ticker: PRTA
CIK: 0001559053
Other tickers: None
Insider transactions, Q3 2026: 27

Insider trading

In Q3 2026, insiders at Prothena Corp Public Ltd Co reported 27 non-derivative transactions on 18 Forms 3, 4 and 5, including 7 open-market purchases and 2 sales. See every PRTA insider transaction →

Recent filings we observed

No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.

Get PRTA SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1559053&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1559053" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1559053?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Prothena Corp Public Ltd Co on SEC.gov

Questions

What is PRTA’s CIK number?

PRTA’s SEC Central Index Key (CIK) is 0001559053, or 1559053 without leading zeros. The SEC’s ticker file lists it as PROTHENA CORP PUBLIC LTD CO.

How do I find Prothena Corp Public Ltd Co’s 10-K?

Request /api/v1/filings?cik=1559053&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/prta.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.