PROTHENA CORP PUBLIC LTD CO(PRTA)— Stock Profile, AI Score & Financials

Healthcare · Nasdaq · AI-powered stock analysis, 32-signal quality score, SEC EDGAR financials, and institutional holdings. Updated .

PROTHENA CORP PUBLIC LTD CO (PRTA) stock profile, AI quality score, and SEC EDGAR financial data, a Healthcare sector company. PRTA is not currently included in 13F Pro's AI-ranked quality universe — quality rankings require at least 50 unique 13-f institutional holders to ensure peer comparisons are meaningful. only 4 institutional filers currently hold this stock. Based on the latest XBRL financial filings (Q2 2026), PROTHENA CORP PUBLIC LTD CO reports quarterly revenue of $1.0M, net income of $-18.6M. Top institutional holders of PRTA by reported 13-F value include Prosight Management, NewEdge Advisors, LAZARD ASSET MANAGEMENT, based on the most recent SEC filings. PRTA trades on the Nasdaq exchange and files with the SEC under CIK 1559053. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate PRTA daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for PROTHENA CORP PUBLIC LTD CO directly from SEC EDGAR.

Revenue

$1.0M

Net Income

$-18.6M

PRTA key financials by period

PROTHENA CORP PUBLIC LTD CO reported revenue, net income and margins by fiscal period, from SEC filings.
PeriodFormRevenueNet incomeOperating margin
FY 202510-K$9.7M$-244.1M—
FY 202410-K$135.2M$-122.3M-114.4%
FY 202310-K$91.4M$-147.0M—
FY 202210-K$53.9M$-116.9M—
FY 202110-K$200.6M$67.0M35.9%
FY 202010-K$853.0K$-111.1M—

Institutions holding PRTA

Institutional investors reporting a position in PROTHENA CORP PUBLIC LTD CO on SEC Form 13F.
InstitutionSharesValueReported
Prosight Management3,500$127.2K2023-12-31
NewEdge Advisors72$2.6K2023-12-31
LAZARD ASSET MANAGEMENT4,256$154.002023-12-31
Daiwa Securities Group195$7.002023-12-31
SEC EDGAR: CIK 1559053 →
PRTA

PROTHENA CORP PUBLIC LTD CO

PRTA
NasdaqSmall CapHealthcare

13F Pro Quality Score

Not in ranked universe

Limited institutional coverage

Quality rankings require at least 50 unique 13-F institutional holders to ensure peer comparisons are meaningful. Only 4 institutional filers currently hold this stock.

Financial data, filings, and institutional holdings below are still tracked in full — only the proprietary quality composite is unavailable for this name.

Price Chart

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Key Metrics

Revenue

Q2 2026
EDGAR

$1.01M

Net Income

Q2 2026
EDGAR

$-18.58M

EPS (Diluted)

Q2 2026
EDGAR

$-0.36

ROIC

Q2 2026
EDGAR

-29.4%

Top Institutional Holders

as of Q4 2023
$130.0K total
Prosight Management, LP
$127.2KNew
NewEdge Advisors, LLC
$2.6KNew
LAZARD ASSET MANAGEMENT LLC
$154New
Daiwa Securities Group Inc.
$70.0%

Financial Trends

Revenue & Net Income

Earnings Per Share

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