PRTA — PROTHENA CORP PUBLIC LTD CO
—
Nasdaq ·
Health Care ·
Pharmaceuticals ·
CIK 1559053 ·
Last close
$10.06
Market Cap
$526.67M
52W High
$11.80
52W Low
$8.38
ADV30
491,964
Next earnings
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Quarterly Fundamentals
Revenues vs Net Income (last 4 Q)
Assets vs Liabilities (last 4 Q)
| Period | Revenues | GrossProfit | OpIncome | NetIncome | Assets | Cash | Liabilities |
|---|---|---|---|---|---|---|---|
| Mar 2026 | 51,084,000 | — | 25,791,000 | 32,721,000 | 349,894,000 | 329,462,000 | 37,278,000 |
| Dec 2025 | 21,000 | — | -27,211,000 | -21,589,000 | 326,804,000 | 307,531,000 | 46,330,000 |
| Sep 2025 | 2,415,000 | — | -39,761,000 | -36,541,000 | 352,628,000 | 330,843,000 | 57,639,000 |
| Jun 2025 | 4,420,000 | — | -52,007,000 | -125,767,000 | 399,066,000 | 371,435,000 | 74,735,000 |
Cashflow TTM (yfinance, fills SEC gap)
Operating CF
$-163,580,000
Investing CF
$-138,000
Financing CF
$-139,000
CapEx
$-181,000
Dividends Paid
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Buybacks
$-139,000
EPS Diluted TTM
$-4.54
As of
2026-05-10
Balance + Analyst (yfinance extras)
Retained Earnings
$-1,346,433,000
Inventory
—
Receivables
$0
ST Investments
—
EBIT TTM
$-184,560,000
Pretax Income TTM
$-200,829,000
Interest Exp TTM
—
Analysts
5
Yahoo Snapshot (yfinance, live)
Total Revenue
$57,940,000
EBITDA
$-92,332,000
Free Cash Flow
$-31,584,500
Enterprise Value
$192,824,320
Total Cash
$329,462,016
Total Debt
$7,654,000
Shares Out
52,353,237
Trailing EPS
$-2.81
Book Value
$5.21
ROE
-40.3%
ROA
-13.8%
Div Yield
—
Annual Trend (SEC EDGAR, last 4y)
Revenues vs Net Income (last 4y)
| FY end | Revenues | OpIncome | NetIncome | Assets | Liabilities | Equity | OCF |
|---|---|---|---|---|---|---|---|
| Dec 2025 | 9,684,000 | -184,560,000 | -244,092,000 | 326,804,000 | 46,330,000 | — | -163,580,000 |
| Dec 2024 | 135,157,000 | -154,561,000 | -122,310,000 | 547,108,000 | 60,182,000 | — | -150,050,000 |
| Dec 2023 | 91,370,000 | -191,036,000 | -147,028,000 | 696,382,000 | 135,017,000 | — | -133,906,000 |
| Dec 2022 | 53,905,000 | -131,557,000 | -116,949,000 | 758,035,000 | 135,993,000 | — | -108,821,000 |
TTM Snapshot
Revenues TTM
$226,527,000
NetIncome TTM
$26,389,000
OpCashFlow TTM
$0
Assets (Latest)
$547,108,000
Forward EPS
$-1.31
Peers — same industry
| Ticker | Name | Market Cap | Last | Daily % |
|---|---|---|---|---|
| XOMA | XOMA Royalty Corp | $523.21M | $41.72 | — |
| NIKA | NIKA PHARMACEUTICALS, INC | $534.76M | $0.51 | — |
| RIGL | RIGEL PHARMACEUTICALS INC | $539.71M | $29.17 | — |
| AQST | Aquestive Therapeutics, Inc. | $511.84M | $4.08 | — |
| CBIO | CRESCENT BIOPHARMA, INC. | $561.09M | $20.35 | — |
News headlines (Yahoo Finance, 1h cache)
Earnings Beat: Prothena Corporation plc Just Beat Analyst Forecasts, And Analysts Have Been Updating Their Models
2026-05-11 13:17 · Yahoo
Prothena Reports First Quarter 2026 Financial Results and Business Highlights
2026-05-07 20:05 · Yahoo
Prothena to Report First Quarter 2026 Financial Results on May 7
2026-04-30 20:05 · Yahoo
Stock Market Today, April 29: KalVista Pharmaceuticals Surges on Chiesi Group Acquisition Announcement
2026-04-29 22:07 · Yahoo
3 Growth Companies Insiders Are Eager To Hold
2026-04-29 11:36 · Yahoo
Prothena Announces Novo Nordisk Obtains Fast Track Designation from the U.S. FDA for Coramitug (PRX004) in ATTR Amyloidosis with Cardiomyopathy
2026-04-27 20:05 · Yahoo
Prothena Announces Leadership Team Updates
2026-04-10 20:05 · Yahoo
AZN Posts Data From Hypophosphatasia Program on Efzimfotase Alfa
2026-04-01 15:04 · Yahoo
Top Growth Companies With High Insider Ownership In March 2026
2026-03-31 17:36 · Yahoo
Sanofi Gets EU Nod for Rezurock in Chronic Graft-Vs-Host Disease
2026-03-31 16:12 · Yahoo
Recent Insider Activity
No insider activity indexed for this ticker.