Market Cap 326.73M
Revenue (ttm) 135.16M
Net Income (ttm) -122.31M
EPS (ttm) N/A
PE Ratio 0.00
Forward PE N/A
Profit Margin -90.49%
Debt to Equity Ratio 0.00
Volume 1,200,700
Avg Vol 1,914,122
Day's Range N/A - N/A
Shares Out 53.83M
Stochastic %K 74%
Beta -0.08
Analysts Sell
Price Target $24.29

Company Profile

Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation in the United States. Its product pipeline includes birtamimab, an investigational humanized antibody, which in phase 3 clinical trial to treat patients with AL amyloidosis; and Prasinezumab, an investigational humanized monoclonal antibody which is in phase 2b clinical trial, as well as phase 1 and 2 clinical trials for...

Industry: Biotechnology
Sector: Healthcare
Phone: 353 1 236 2500
Fax: 353 1 902 3510
Address:
77 Sir John Rogerson’s Quay, Block C Grand Canal Docklands, Dublin, Ireland
YaBoy720
YaBoy720 Jun. 26 at 2:51 AM
$PRTA I'm a Buyer Tomorrow Bullish
0 · Reply
SQUEAKSBANDIT
SQUEAKSBANDIT Jun. 25 at 12:18 AM
$PRTA sold above $6 then took another look cash runway looks to go through mid 2029 not sure that matters as the next piece of good data will likely motivate the partner to make a bid and buy the whole package way undervalued @ $6 bought some back and will will add on weakness I'm not saying we ever see $70 again but $20 sometime next year seems reasonable
0 · Reply
takingstock73
takingstock73 Jun. 23 at 9:22 PM
$PRTA decent volume today
0 · Reply
alromofi777
alromofi777 Jun. 23 at 5:33 PM
$PRTA 🚀 1,000 shares and holding until we get to $80
1 · Reply
Winning_calls
Winning_calls Jun. 23 at 1:50 PM
$PRTA keep👊👊👊
0 · Reply
Winning_calls
Winning_calls Jun. 23 at 1:44 PM
$PRTA enjoy that members 🤞🤞
0 · Reply
RandomInvestor777
RandomInvestor777 Jun. 23 at 5:30 AM
Why get into this right now when it'll be at $2-3 after august readout disappointment? The next readout in August requires a very high statistical significance which is higher than average FDA requirement. It's very likely to fail that. $PRTA
1 · Reply
Winning_calls
Winning_calls Jun. 23 at 4:18 AM
$PRTA pick me up @ $6
0 · Reply
BioRich
BioRich Jun. 20 at 4:22 PM
$PRTA Happily doubled my position here. Lucky to load up on this gem. Foresee exciting short-term and long-term potential here. Recent pull back allows for tremendous investment here. Lots of shots on goal and appears to be a winner. Follow/Subscribe for more suggestions and perspective. Would love to hear yours, too. That's how we find these gems and learn. Let's make some money. Cheers! $XBI $PFE $GILD $LLY
1 · Reply
JarvisFlow
JarvisFlow Jun. 20 at 1:15 PM
Cantor Fitzgerald has updated their rating for Prothena Corp ( $PRTA ) to Neutral.
0 · Reply
Latest News on PRTA
Prothena Announces Corporate Restructuring

Jun 18, 2025, 4:05 PM EDT - 7 days ago

Prothena Announces Corporate Restructuring


Why Is Prothena Stock Trading Lower On Tuesday?

May 27, 2025, 7:43 AM EDT - 4 weeks ago

Why Is Prothena Stock Trading Lower On Tuesday?


Prothena Corporation plc (PRTA) Q4 2024 Earnings Call Transcript

Feb 20, 2025, 8:45 PM EST - 4 months ago

Prothena Corporation plc (PRTA) Q4 2024 Earnings Call Transcript


Prothena Announces Board of Directors Update

Dec 30, 2024, 4:05 PM EST - 6 months ago

Prothena Announces Board of Directors Update


Prothena Announces Leadership Team Updates

Sep 27, 2024, 4:05 PM EDT - 9 months ago

Prothena Announces Leadership Team Updates


Prothena to Participate in Upcoming Healthcare Conferences

Aug 29, 2024, 4:05 PM EDT - 10 months ago

Prothena to Participate in Upcoming Healthcare Conferences


Prothena: Alzheimer's Data Update In 2024 Could Move The Needle

Feb 23, 2024, 12:31 PM EST - 1 year ago

Prothena: Alzheimer's Data Update In 2024 Could Move The Needle


Prothena prepares for potential sale - Bloomberg News

Oct 16, 2023, 11:57 AM EDT - 1 year ago

Prothena prepares for potential sale - Bloomberg News


Prothena: Dunn Appointment And Bristol Opt-In Boost Validation

Jul 27, 2023, 7:23 AM EDT - 2 years ago

Prothena: Dunn Appointment And Bristol Opt-In Boost Validation


Prothena to Participate in Stifel 2023 Virtual CNS Days

Mar 21, 2023, 4:05 PM EDT - 2 years ago

Prothena to Participate in Stifel 2023 Virtual CNS Days


YaBoy720
YaBoy720 Jun. 26 at 2:51 AM
$PRTA I'm a Buyer Tomorrow Bullish
0 · Reply
SQUEAKSBANDIT
SQUEAKSBANDIT Jun. 25 at 12:18 AM
$PRTA sold above $6 then took another look cash runway looks to go through mid 2029 not sure that matters as the next piece of good data will likely motivate the partner to make a bid and buy the whole package way undervalued @ $6 bought some back and will will add on weakness I'm not saying we ever see $70 again but $20 sometime next year seems reasonable
0 · Reply
takingstock73
takingstock73 Jun. 23 at 9:22 PM
$PRTA decent volume today
0 · Reply
alromofi777
alromofi777 Jun. 23 at 5:33 PM
$PRTA 🚀 1,000 shares and holding until we get to $80
1 · Reply
Winning_calls
Winning_calls Jun. 23 at 1:50 PM
$PRTA keep👊👊👊
0 · Reply
Winning_calls
Winning_calls Jun. 23 at 1:44 PM
$PRTA enjoy that members 🤞🤞
0 · Reply
RandomInvestor777
RandomInvestor777 Jun. 23 at 5:30 AM
Why get into this right now when it'll be at $2-3 after august readout disappointment? The next readout in August requires a very high statistical significance which is higher than average FDA requirement. It's very likely to fail that. $PRTA
1 · Reply
Winning_calls
Winning_calls Jun. 23 at 4:18 AM
$PRTA pick me up @ $6
0 · Reply
BioRich
BioRich Jun. 20 at 4:22 PM
$PRTA Happily doubled my position here. Lucky to load up on this gem. Foresee exciting short-term and long-term potential here. Recent pull back allows for tremendous investment here. Lots of shots on goal and appears to be a winner. Follow/Subscribe for more suggestions and perspective. Would love to hear yours, too. That's how we find these gems and learn. Let's make some money. Cheers! $XBI $PFE $GILD $LLY
1 · Reply
JarvisFlow
JarvisFlow Jun. 20 at 1:15 PM
Cantor Fitzgerald has updated their rating for Prothena Corp ( $PRTA ) to Neutral.
0 · Reply
StocktwitsNews
StocktwitsNews Jun. 20 at 4:26 AM
Prothena Shares Get A Boost After Company Slashes Workforce, Lowers 2025 Cash Burn Forecast $PRTA https://stocktwits.com/news/equity/markets/prothena-shares-get-a-boost-after-company-slashes-workforce-lowers-2025-cash-burn-forecast/chlx3tpRR2y
0 · Reply
topstockalerts
topstockalerts Jun. 19 at 4:44 PM
$PRTA following closely🚨🏦🚨
0 · Reply
alromofi777
alromofi777 Jun. 19 at 4:02 PM
$PRTA 🚀 This thing is gonna fly. Zoom out and get a better look of what will happen 🧐
0 · Reply
DonCorleone77
DonCorleone77 Jun. 19 at 3:02 AM
$GMS $GRRR $APG $SWBI $PRTA Feel free to follow me for pre-market and after-hours movers every day. AFTER-HOURS MOVERS: Currently Higher After Earnings: -- Gorilla Technology Group (GRRR) up 14.6% Currently Also Higher: -- GMS Inc. (GMS), up 17.3% after QXO (QXO) offers to buy company at $95.20 per share -- APi Group (APG) up 6.2% after entering S&P MidCap 400 index -- Prothena (PRTA) up 5.0% after announcing restructuring, cash burn update -- G-III Apparel Group, Ltd. (GIII) up 1.9% after insider buy Currently Lower After Earnings: Smith & Wesson Brands (SWBI) down 12.1%
1 · Reply
SQUEAKSBANDIT
SQUEAKSBANDIT Jun. 19 at 1:51 AM
$PRTA the cuts in costs/staff were to be expected no news here if it trades above $6 on friday i’m selling my shares already way up off the bottom
1 · Reply
BioRich
BioRich Jun. 18 at 9:09 PM
$PRTA These moves SCREAM Buyout!
2 · Reply
DonCorleone77
DonCorleone77 Jun. 18 at 8:30 PM
$PRTA Prothena Chief Regulatory Officer Karp, Chief People Officer Ford to depart On June 18, 2025, Prothena "announced that in connection with the workforce reduction, the employment of Carol D. Karp, the Company's Chief Regulatory Officer, and David A. Ford, the Company's Chief People Officer, will terminate effective August 1, 2025."
0 · Reply
DonCorleone77
DonCorleone77 Jun. 18 at 8:29 PM
$PRTA Prothena sees 2025 net cash burn from operating/investing at $170M-$178M Based on the reorganization, Prothena is "revising its full year 2025 financial guidance and expects its 2025 net cash burn from operating and investing activities to be $170 to $178 million and to end the year with approximately $298 million (midpoint) in cash, cash equivalents, and restricted cash. The estimated 2025 net cash burn from operating and investing activities is primarily driven by an estimated net loss of $240 to $248 million, which includes an estimated $36 million of non-cash share-based compensation expense and a $45 million non-cash income tax expense to book a full valuation allowance against its U.S. deferred tax assets. The estimated 2025 net loss includes $105 to $110 million of operating expenses associated with birtamimab and the Company's reorganization, including research, development, manufacturing and pre-commercial expenses, severance costs and contract termination fees related to manufacturing obligations, and approximately $12 million of non-cash share-based compensation expense. Therefore, the Company expects the discontinuation of birtamimab development will result in an approximate decrease of $96 million (midpoint) in annualized net cash burn."
0 · Reply
DonCorleone77
DonCorleone77 Jun. 18 at 8:11 PM
$PRTA $NVO $BMY Prothena announces corporate restructuring, cuts 63% of workforce Prothena (PRTA) "announced that the company has initiated an approximate 63% reduction in its workforce to substantially reduce its operating costs to those necessary to support its remaining wholly owned programs, its obligations to partnered programs, and its anticipated business development activities. The board, management, and Company's financial advisors are collectively evaluating a comprehensive range of business options to best serve the interest of its shareholders that consider the implications of multiple recent and upcoming milestones, including: Earlier this week Roche announced that it will advance prasinezumab into Phase 3 development for early-stage Parkinson's disease; Company expects initial data in August from Phase 1 ASCENT clinical trials of its wholly owned PRX012 program in Alzheimer's disease; Novo Nordisk (NVO) expects to share data from its Phase 2 clinical trial evaluating coramitug for ATTR-CM in the second half of 2025; Company expects to complete a Phase 1 clinical trial for PRX019 in collaboration with Bristol Myers Squibb (BMY) in 2026; Bristol Myers Squibb expects to complete a Phase 2 TargetTau-1 clinical trial evaluating BMS-986446 in Alzheimer's disease in 2027; Company has potential to receive up to $105 million in 2026 for clinical milestones from various partnered programs."
0 · Reply
alromofi777
alromofi777 Jun. 18 at 3:05 PM
$PRTA 🚀
0 · Reply
AIIAAIIA_88
AIIAAIIA_88 Jun. 17 at 5:01 PM
$PRTA Its current MC is only about $330M, even below its net cash of $410M. Sure, clinical trials cost money but how much is the P3 trial for PD with the big pharma partner (BMY) worth? One would think at least $1-2B, right? Even having a chance at having PD treatment…. Do the math. This stock is grossly undervalued. That is not even counting the AD vaccine/drug assets.
0 · Reply
PLATINUM_TRADES
PLATINUM_TRADES Jun. 17 at 4:53 PM
$PRTA that should actually say $6.00 but hey I'll take $7.00 too... No losses again on overnight swings🚨🚨
0 · Reply