87.00
price up icon29.77%   19.96
after-market After Hours: 87.38 0.38 +0.44%
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Protagonist Therapeutics Inc stock is traded at $87.00, with a volume of 7.05M. It is up +29.77% in the last 24 hours and up +50.68% over the past month. Protagonist Therapeutics Inc is a clinical-stage biopharmaceutical company having a proprietary technology platform that enables the discovery and development of novel constrained peptide-based drug candidates to address medical needs. Its pipeline products include Rusfertide (PTG-300) and JNJ-2113.
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Previous Close:
$67.04
Open:
$67.39
24h Volume:
7.05M
Relative Volume:
7.63
Market Cap:
$5.41B
Revenue:
$45.48M
Net Income/Loss:
$169.95M
P/E Ratio:
33.21
EPS:
2.62
Net Cash Flow:
$230.85M
1W Performance:
+34.20%
1M Performance:
+50.68%
6M Performance:
+112.77%
1Y Performance:
+99.59%
1-Day Range:
Value
$65.75
$93.25
1-Week Range:
Value
$62.24
$93.25
52-Week Range:
Value
$33.31
$93.25

Protagonist Therapeutics Inc Stock (PTGX) Company Profile

Name
Name
Protagonist Therapeutics Inc
Name
Phone
(510) 474-0170
Name
Address
7707 GATEWAY BLVD., SUITE 140, NEWARK, CA
Name
Employee
130
Name
Twitter
Name
Next Earnings Date
2025-05-02
Name
Latest SEC Filings
Name
PTGX's Discussions on Twitter

Compare PTGX with other stocks

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
Biotechnology icon
PTGX
Protagonist Therapeutics Inc
87.00 4.17B 45.48M 169.95M 230.85M 2.62
Biotechnology icon
VRTX
Vertex Pharmaceuticals Inc
407.79 106.37B 11.39B 3.64B 3.50B 13.99
Biotechnology icon
ALNY
Alnylam Pharmaceuticals Inc
460.46 59.90B 2.46B -319.09M -52.09M -2.4669
Biotechnology icon
REGN
Regeneron Pharmaceuticals Inc
564.63 60.40B 14.21B 4.46B 3.56B 39.69
Biotechnology icon
ARGX
Argen X Se Adr
796.92 49.56B 3.06B 1.28B 447.35M 19.67
Biotechnology icon
ONC
Beone Medicines Ltd Adr
320.10 36.88B 4.56B -176.77M 225.30M -1.7177

Protagonist Therapeutics Inc Stock (PTGX) Upgrades & Downgrades

Date Action Analyst Rating Change
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

pulisher
03:14 AM

Douglas Lane Adds $6 Million in J&J Stock Ahead of Earnings and Possible Biotech Deal - The Motley Fool

03:14 AM
pulisher
Oct 11, 2025

Protagonist Therapeutics (PTGX) Surges on Johnson & Johnson Acquisition Talks - GuruFocus

Oct 11, 2025
pulisher
Oct 11, 2025

Key deals this week: Protagonist Therapeutics, Bristol Myers, Novo Nordisk, Fifth Third Bancorp and more - Seeking Alpha

Oct 11, 2025
pulisher
Oct 11, 2025

Protagonist Therapeutics (NASDAQ:PTGX) Stock Price Up 9.4%What's Next? - MarketBeat

Oct 11, 2025
pulisher
Oct 11, 2025

Protagonist Therapeutics: Small Biotech Skyrockets on Buyout Buzz & Breakthrough Trials - ts2.tech

Oct 11, 2025
pulisher
Oct 11, 2025

Protagonist Therapeutics, Inc.'s (NASDAQ:PTGX) 51% Price Boost Is Out Of Tune With Revenues - simplywall.st

Oct 11, 2025
pulisher
Oct 11, 2025

Protagonist Therapeutics (NASDAQ:PTGX) Sets New 12-Month HighHere's What Happened - MarketBeat

Oct 11, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics Inc. (PTGX) Stock Price | Live Quotes & Charts | NSD - StocksToTrade

Oct 10, 2025
pulisher
Oct 10, 2025

Pharma, Battery, And Biotech Stocks See Sudden Price Jumps - Finimize

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics (PTGX) Surges on Takeover Speculation - GuruFocus

Oct 10, 2025
pulisher
Oct 10, 2025

Why Protagonist Therapeutics Stock Skyrocketed by Almost 30% Today - Yahoo Finance

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics Stock Notable Surge - timothysykes.com

Oct 10, 2025
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Oct 10, 2025

Protagonist Therapeutics’s Recent Commendable Performance - StocksToTrade

Oct 10, 2025
pulisher
Oct 10, 2025

Johnson & Johnson in talks to acquire Protagonist Therapeutics, source says - Reuters

Oct 10, 2025
pulisher
Oct 10, 2025

Sudden Surge: PTGX’s Momentous Journey - timothysykes.com

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics (PTGX) Skyrockets on J&J Buyout Buzz Amid Clinical Breakthroughs - ts2.tech

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics stock reaches all-time high at 73.34 USD - Investing.com

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics Sees Surging Stock Price: What’s Driving This? - StocksToTrade

Oct 10, 2025
pulisher
Oct 10, 2025

Why Did Protagonist Therapeutics Stock Soar Today? - MSN

Oct 10, 2025
pulisher
Oct 10, 2025

Johnson & Johnson In Talks To Acquire Protagonist Therapeutics: Report - Benzinga

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics (PTGX) Stock Surges Over 34% - GuruFocus

Oct 10, 2025
pulisher
Oct 10, 2025

Johnson & Johnson in Acquisition Talks with Protagonist TherapeuticsNews and Statistics - IndexBox

Oct 10, 2025
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Oct 10, 2025

Stocks making the biggest moves midday: MP Materials, Alibaba, Protagonist Therapeutics & more - CNBC

Oct 10, 2025
pulisher
Oct 10, 2025

Johnson & Johnson in Talks to Buy Protagonist Therapeutics: WSJ - Bloomberg.com

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics (PTGX) Surges on Potential Johnson & Jo - GuruFocus

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics surges after media reports J&J in talks to buy co - TradingView

Oct 10, 2025
pulisher
Oct 10, 2025

J&J reportedly in talks to buy Protagonist (JNJ:NYSE) - Seeking Alpha

Oct 10, 2025
pulisher
Oct 10, 2025

Johnson & Johnson in talks to acquire Protagonist Therapeutics, WSJ reports - Yahoo Finance

Oct 10, 2025
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Oct 10, 2025

Protagonist Therapeutics stock surges after J&J acquisition talks report By Investing.com - Investing.com South Africa

Oct 10, 2025
pulisher
Oct 10, 2025

Johnson & Johnson In Talks To Buy Protagonist TherapeuticsWSJ - TradingView

Oct 10, 2025
pulisher
Oct 10, 2025

Exclusive | Johnson & Johnson in Talks to Buy Protagonist Therapeutics - The Wall Street Journal

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Therapeutics' (PTGX) "Sell (D+)" Rating Reaffirmed at Weiss Ratings - MarketBeat

Oct 10, 2025
pulisher
Oct 10, 2025

What machine learning models say about Protagonist Therapeutics Inc.July 2025 Decliners & Weekly High Potential Stock Alerts - newser.com

Oct 10, 2025
pulisher
Oct 10, 2025

Protagonist Stock Surges on Johnson & Johnson Report - The Wall Street Journal

Oct 10, 2025
pulisher
Oct 10, 2025

Using data models to predict Protagonist Therapeutics Inc. stock movementPortfolio Risk Report & Weekly Watchlist of Top Performers - newser.com

Oct 10, 2025
pulisher
Oct 10, 2025

Is Protagonist Therapeutics Inc. a candidate for recovery play2025 Top Decliners & Technical Confirmation Trade Alerts - newser.com

Oct 10, 2025
pulisher
Oct 10, 2025

Predicting Protagonist Therapeutics Inc. trend using moving averages2025 Short Interest & Stepwise Entry/Exit Trade Alerts - newser.com

Oct 10, 2025
pulisher
Oct 09, 2025

Protagonist Therapeutics (PTGX): Evaluating Valuation After Positive Phase 2b Trial Data and Pipeline Momentum - simplywall.st

Oct 09, 2025
pulisher
Oct 09, 2025

Protagonist Announces Presentations of Clinical Data with Icotrokinra in Plaque Psoriasis and Preclinical Data with PN-881 at the EADV 2025 Congress - Livingston Daily

Oct 09, 2025
pulisher
Oct 09, 2025

Protagonist Announces New Icotrokinra Data in Ulcerative Colitis Showing Potential for a Standout Combination of Therapeutic Benefit and a Favorable Safety Profile in Once-daily Pill - DelmarvaNow.com

Oct 09, 2025
pulisher
Oct 08, 2025

Protagonist Therapeutics Inc Stock Analysis and ForecastMorning Star Patterns & Get Alerts on Stocks Set to Skyrocket - earlytimes.in

Oct 08, 2025
pulisher
Oct 08, 2025

BMO Capital reiterates Outperform rating on Protagonist Therapeutics stock By Investing.com - Investing.com Canada

Oct 08, 2025
pulisher
Oct 08, 2025

Protagonist Therapeutics, Inc. Experiences Revision in Stock Evaluation Amid Strong Market Performance - Markets Mojo

Oct 08, 2025
pulisher
Oct 08, 2025

Wedbush Maintains Protagonist Therapeutics(PTGX.US) With Buy Rating, Maintains Target Price $70 - 富途牛牛

Oct 08, 2025
pulisher
Oct 08, 2025

Will Icotrokinra’s Phase 2b Success Shift Protagonist Therapeutics' (PTGX) Ulcerative Colitis Narrative? - simplywall.st

Oct 08, 2025
pulisher
Oct 08, 2025

Protagonist Announces Icotrokinra Phase 2b ANTHEM-UC Trial Data to be Presented at the United European Gastroenterology Week Berlin 2025 - USA Today

Oct 08, 2025
pulisher
Oct 08, 2025

Protagonist Therapeutics' (PTGX) Buy Rating Reiterated at HC Wainwright - MarketBeat

Oct 08, 2025
pulisher
Oct 08, 2025

HC Wainwright & Co. Reiterates Protagonist Therapeutics (PTGX) Buy Recommendation - Nasdaq

Oct 08, 2025
pulisher
Oct 08, 2025

PTGX: HC Wainwright & Co. Reiterates Buy Rating with $80 Target Price | PTGX Stock News - GuruFocus

Oct 08, 2025
pulisher
Oct 07, 2025

Protagonist Therapeutics stock price target raised to $74 at Clear Street - Investing.com

Oct 07, 2025
pulisher
Oct 07, 2025

Protagonist Therapeutics (PTGX) Reports Promising Phase 2b Resul - GuruFocus

Oct 07, 2025

Protagonist Therapeutics Inc Stock (PTGX) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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Protagonist Therapeutics Inc Stock (PTGX) Insider Trading

Insider Trading Relationship Date Transaction Cost #Shares Value ($) #Shares Total
Waddill William D.
Director
Sep 22 '25
Sale
64.25
4,000
257,000
5,130
$21.35
price down icon 5.74%
$83.80
price down icon 1.12%
$31.81
price down icon 0.13%
$102.06
price down icon 2.32%
$162.33
price down icon 1.26%
biotechnology ONC
$320.10
price down icon 4.68%
Cap:     |  Volume (24h):