Protagonist Therapeutics Inc. (PTGX)
PTGX trades on Nasdaq in Health Care, Biotechnology: Pharmaceutical Preparations. Numbers below come from the Nasdaq screener and SEC filings, each with its source.
Price, change, market cap, sector and industry: Nasdaq stock screener, as of October 14, 2026. Revenue: SEC 10-K (us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax), period ending 2025-12-31, https://www.sec.gov/Archives/edgar/data/1377121/000110465926019696/0001104659-26-019696-index.htm. Net income: SEC 10-K (us-gaap:NetIncomeLoss), period ending 2025-12-31.
Profile
| Field | Value |
|---|---|
| Ticker | PTGX on Nasdaq |
| Sector | Health Care |
| Industry | Biotechnology: Pharmaceutical Preparations |
| Country | United States |
| IPO year | 2016 |
| SEC CIK | 0001377121 |
| SEC industry code | Pharmaceutical Preparations |
| Incorporated in | DE |
Financials · 2025
| Line | Value |
|---|---|
| Revenue | $46.0M |
| Net income | -$130.1M |
| Operating income | Not in SEC XBRL data |
| Net margin | -282.8% |
| Operating margin | Operating income not reported |
| Revenue growth | No prior-year revenue to compare |
| Cash | Not in SEC XBRL data |
| Total assets | Not in SEC XBRL data |
| P/E (computed) | Net income was not positive |
| P/S (computed) | 194.7× |
Key SEC documents
| Document | Form | Filed |
|---|---|---|
| Latest prospectus or offering document | S-3ASR | 2025-08-06 |
| Latest annual report | 10-K | 2026-02-25 |
| Latest quarterly / interim | 10-Q | 2026-08-05 |
| Latest current report FORM 8-K | 8-K | 2026-08-05 |
| Latest proxy | DEFA14A | 2026-04-28 |
Source: SEC EDGAR submissions feed, 704 recent filings. All filings on EDGAR.
Price moves
| Window | Return |
|---|---|
| 1 week | -3.5% |
| 1 month | -5.1% |
| 3 months | +3.0% |
| Year to date | +55.8% |
| 1 year | +71.8% |
| From 52-week high | -14.2% |
Source: Yahoo Finance daily closes, last bar 2026-10-14. Computed by Sophia Capital from daily closes; cap, sector and tier from the Nasdaq screener.
Peers in Biotechnology: Pharmaceutical Preparations
| Ticker | Company | Price | Day | Market cap |
|---|---|---|---|---|
| CYTK | Cytokinetics Incorporated | $61.62 | -1.86% | $8.6B |
| TGTX | TG Therapeutics Inc. | $54.34 | -1.68% | $8.3B |
| ARWR | Arrowhead Pharmaceuticals Inc. | $58.13 | -4.28% | $8.2B |
| AXSM | Axsome Therapeutics Inc. | $156.32 | -5.83% | $8.2B |
| MDGL | Madrigal Pharmaceuticals Inc. | $452.12 | -3.22% | $10.4B |
| BMRN | BioMarin Pharmaceutical Inc. | $54.38 | -1.82% | $10.5B |
| RDY | Dr. Reddy's Laboratories Ltd | $12.77 | -0.39% | $10.7B |
| ABVX | Abivax SA | $86.22 | -0.83% | $7.5B |
The full dossier has every filing, three years of financials, private raises and the people who signed them.
Open the full dossier