Q2 FY2026 · ended Jun 30, 2026 · Revenue $1.01M, -77.1% YoY · Filed Aug 6, 2026
Prothena Corporation Public Limited Company (PRTA) files with the SEC under industry code 2834, Pharmaceutical Preparations. In Q2 of fiscal 2026, the quarter ended Jun 30, 2026, it reported revenue of $1.0 million and a net loss of $18.6 million. As of Jun 30, 2026 it held $288.2 million in cash and investments and $7.0 million in total debt.
Revenue
$1.01M
-77.1% vs year-ago quarter
Net income
$-18.58M
+85.2% vs year-ago quarter
Operating cash flow
$-25.05M
+45.9% vs year-ago quarter
Free cash flow
—
EPS
$-0.36
+84.6% vs year-ago quarter
Dividend per share
None
Shares outstanding
51.34M
-4.6% vs year-ago quarter
Net cash
$281.20M
Q2 FY2026
Operating margin
-101.8%
TTM
Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- PRTA (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Ireland
- Headquarters
- Dublin 2, Ireland
- SEC filer status
- Accelerated filer
- SEC CIK
- 1559053
- Former names
- Prothena Corp plc (until May 22, 2020); Neotope Corp Ltd (until Oct 1, 2012)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Merck & Co., Inc. MRK
- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
Key figures
Fiscal-year totals from the annual reports; switch to Annual for the full-year view. Balance sheet lines are as of each year end.
| Line | Q2 FY2026 Jun 30, 2026 |
Q1 FY2026 Mar 31, 2026 |
Q4 FY2025 Dec 31, 2025 |
Q3 FY2025 Sep 30, 2025 |
Q2 FY2025 Jun 30, 2025 |
|---|---|---|---|---|---|
| Revenue | $1.0M | $51.1M | $21,000 | $2.4M | $4.4M |
| Operating income | -$21.1M | $30.0M | -$24.2M | -$40.2M | -$84.6M |
| Net income | -$18.6M | $32.7M | -$21.6M | -$36.5M | -$125.8M |
| Diluted EPS | -$0.36 | $0.60 | -$0.40 | -$0.68 | -$2.34 |
| Operating cash flow | -$25.0M | $28.9M | -$23.3M | -$40.6M | -$46.3M |
| Total assets | $302.6M | $349.9M | $326.8M | $352.6M | $399.1M |
| Total liabilities | $15.7M | $37.3M | $46.3M | $57.6M | $74.7M |
| Stockholders' equity | $286.9M | $312.6M | $280.5M | $295.0M | $324.3M |
| Cash and investments | $288.2M | $329.5M | $307.5M | $330.8M | $371.4M |
| Total debt | $7.0M | $7.7M | $8.4M | $9.1M | $9.8M |
Recent SEC filings
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 8-K |
Current report
Agreement ended
|
Oct 29, 2026 | Oct 28, 2026 |
| 8-K |
Current report
Officer or director change
|
Oct 2, 2026 | Oct 2, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
All 1006 Prothena Corporation Public Limited Company SEC filings
Source: SEC EDGAR filings. This is company-reported data, not investment advice.