Prothena financials
$8.78+0.69%
Close Sep 29, 2026 · split-adjustedRevenue
Net income
Income statement & cash flow
| Fiscal year | FY25 Dec 31 | FY24 Dec 31 | FY23 Dec 31 | FY22 Dec 31 | FY21 Dec 31 | FY20 Dec 31 | FY19 Dec 31 | FY18 Dec 31 | FY17 Dec 31 | FY16 Dec 31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | $9.7M | $135.2M | $91.4M | $53.9M | $200.6M | $853.0K | $814.0K | $955.0K | $27.5M | $1.1M |
| Gross profit | $9.7M | $135.2M | $91.4M | $53.9M | $200.6M | $853.0K | $814.0K | $955.0K | $27.5M | $1.1M |
| Gross margin | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Operating income | -$214.6M | -$154.6M | -$191.0M | -$131.6M | $72.0M | -$112.7M | -$85.7M | -$158.9M | -$155.3M | -$159.5M |
| Net income | -$244.1M | -$122.3M | -$147.0M | -$116.9M | $67.0M | -$111.1M | -$77.7M | -$155.6M | -$153.2M | -$160.1M |
| Net margin | −2520.6% | −90.5% | −160.9% | −217.0% | 33.4% | −13029.8% | −9542.6% | −16297.9% | −556.8% | −15176.1% |
| Diluted EPS | $-4.53 | $-2.27 | $-2.76 | $-2.47 | $1.38 | $-2.78 | $-1.95 | $-3.93 | $-4.07 | $-4.66 |
| EBITDA | -$183.7M | -$153.7M | -$190.1M | -$130.8M | $78.8M | -$111.2M | -$78.9M | -$139.5M | -$152.2M | -$157.1M |
| Operating cash flow | -$163.6M | -$150.1M | -$133.9M | -$108.8M | $92.6M | -$80.4M | -$53.0M | -$28.3M | -$131.2M | -$116.3M |
| Free cash flow | -$163.7M | -$150.3M | -$136.7M | -$109.3M | $92.0M | -$80.6M | -$53.5M | -$30.0M | -$134.8M | -$132.9M |
| Diluted shares | 53.8M | 53.8M | 53.2M | 47.4M | 48.5M | 39.9M | 39.9M | 39.6M | 37.7M | 34.4M |
Balance sheet
| Period end | Dec 31 | Dec 31 | Dec 31 | Dec 31 | Dec 31 | Dec 31 |
|---|---|---|---|---|---|---|
| Cash & equivalents | $307.5M | $471.4M | $618.8M | $710.4M | $579.1M | $295.4M |
| Short-term investments | $0.00 | $0.00 | $0.00 | $0.00 | — | — |
| Total debt | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Total assets | $326.8M | $547.1M | $696.4M | $758.0M | $609.4M | $333.0M |
| Total liabilities | $46.3M | $60.2M | $135.0M | $136.0M | $143.3M | $149.0M |
| Shareholders' equity | $280.5M | $486.9M | $561.4M | $622.0M | $466.0M | $184.0M |
From SEC filings via Massive. Fiscal periods follow the company's own calendar; free cash flow is operating cash flow minus capital expenditure.
Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology