137.34

0.98% -1.36

Pre-market: 138.70 1.36 +0.99%

Protagonist Therapeutics Inc (PTGX)

Overview News Price History Option Chain Financials Why PTGX Down? Discussions Forecast

Protagonist Therapeutics Inc stock is traded at $137.34, with a volume of 969.84K. It is down -0.98% in the last 24 hours and down -11.23% over the past month. Protagonist Therapeutics Inc is a biopharmaceutical company engaged in the discovery and development of peptide-based therapeutics using its proprietary technology platform. The company focuses on three therapeutic areas: inflammation and immunology, hematology, and metabolic diseases. Its pipeline includes clinical-stage and preclinical candidates such as rusfertide for polycythemia vera, icotrokinra for inflammatory diseases, and other programs targeting IL-17, obesity, and iron metabolism disorders, developed through internal research and strategic collaborations.

Previous Close:

$138.70

Open:

$138.76

24h Volume:

969.84K

Relative Volume:

1.49

Market Cap:

$8.89B

Revenue:

$74.06M

Net Income/Loss:

$-114.71M

P/E Ratio:

-76.14

EPS:

-1.8039

Net Cash Flow:

$-117.90M

1W Performance:

-4.43%

1M Performance:

-11.23%

6M Performance:

+36.81%

1Y Performance:

+108.25%

1-Day Range:

$134.10

$140.80

1-Week Range:

$134.10

$147.71

52-Week Range:

$62.24

$160.81

Protagonist Therapeutics Inc Stock (PTGX) Company Profile

Name

Protagonist Therapeutics Inc

Sector

Healthcare (1068)

Industry

Biotechnology (595)

Phone

(510) 474-0170

Address

7707 GATEWAY BLVD., SUITE 140, NEWARK, CA

Employee

131

Twitter

Next Earnings Date

2026-11-05

Latest SEC Filings

PTGX's Discussions on Twitter

Compare PTGX vs VRTX, REGN, MRNA, ARGX, RVMD

Stocks	Price	Market Cap	Revenue	Net Income	Cash Flow	EPS
PTGX Protagonist Therapeutics Inc	137.34	8.89B	74.06M	-114.71M	-117.90M	-1.8039
VRTX Vertex Pharmaceuticals Inc	522.38	132.40B	12.34B	4.34B	3.71B	16.87
REGN Regeneron Pharmaceuticals Inc	796.02	81.95B	14.92B	4.42B	3.79B	41.04
MRNA Moderna Inc	194.82	77.78B	2.23B	-3.19B	-1.60B	-8.1462
ARGX Argen X Se Adr	962.22	60.20B	4.16B	1.29B	734.26M	19.58
RVMD Revolution Medicines Inc	199.86	42.84B	742.00K	-1.37B	-1.07B	-7.0731

Protagonist Therapeutics Inc Stock (PTGX) Upgrades & Downgrades

Date	Action	Analyst	Rating Change
Aug-10-26	Upgrade	Goldman	Neutral → Buy
May-21-26	Initiated	Wolfe Research	Outperform
Sep-17-25	Initiated	Barclays	Overweight
Sep-12-25	Initiated	Leerink Partners	Outperform
Jun-17-25	Initiated	Citigroup	Buy
Dec-06-24	Initiated	BMO Capital Markets	Outperform
Dec-06-24	Initiated	Goldman	Neutral
Nov-05-24	Initiated	Wedbush	Outperform
Sep-24-24	Initiated	TD Cowen	Buy
Sep-09-24	Initiated	Truist	Buy
Oct-30-23	Initiated	CapitalOne	Overweight
May-25-23	Resumed	Jefferies	Buy
Aug-25-22	Initiated	JMP Securities	Mkt Outperform
Feb-11-22	Initiated	BTIG Research	Buy
Oct-12-21	Upgrade	JP Morgan	Neutral → Overweight
Oct-11-21	Upgrade	Northland Capital	Market Perform → Outperform
Sep-20-21	Downgrade	JP Morgan	Overweight → Neutral
May-24-21	Initiated	JMP Securities	Mkt Outperform
May-24-21	Initiated	Northland Capital	Outperform
Jan-06-21	Initiated	JP Morgan	Overweight
Dec-16-20	Initiated	Piper Sandler	Overweight
Sep-18-20	Reiterated	H.C. Wainwright	Buy
Jul-15-20	Initiated	Jefferies	Buy
May-18-20	Reiterated	H.C. Wainwright	Buy
Jul-08-19	Initiated	H.C. Wainwright	Buy
May-09-19	Upgrade	Stifel	Hold → Buy
Dec-06-18	Initiated	Nomura	Buy
Jan-29-18	Initiated	Stifel	Buy
Jul-21-17	Initiated	BTIG Research	Buy

View All

Protagonist Therapeutics Inc Stock (PTGX) Latest News

Sep 24, 2026