Bulletin
Investor Alert

New York Markets After Hours

Prothena Corp. PLC

NAS: PRTA

GO
/marketstate/country/us

After Hours

/zigman2/quotes/204713496/composite

$

29.01

Change

0.00 0.00%

Volume

Volume 11,323

Sep 26, 2022, 4:30 p.m.

Quotes are delayed by 20 min

/zigman2/quotes/204713496/composite

Today's close

$ 30.74

$ 29.01

Change

-1.73 -5.63%

Day low

Day high

$29.00

$31.65

Open
Open: 30.61

52 week low

52 week high

$21.06

$79.75

Open

Market cap

$1.44B

Average volume

397,679

P/E ratio

N/A

Rev. per Employee

$1.74M

EPS

-0.24

Dividend

N/A

Div yield

N/A

Ex dividend date

N/A

Compare:
Indexes
  • Dow(INDU) INDU
  • Nasdaq (COMP) COMP
  • S&P 500 (SPX) SPX
  • Global Dow (GDOW) GDOW
1d
5d
3m
6m
1y
3y
5y
/news/latest/company/us/prta

MarketWatch News on PRTA

  1. What to Know About the FDA's Approval of Biogen's Alzheimer's Drug

    10:47 a.m. June 8, 2021

    - Barron's Online

  2. Biotech stocks are a buy — especially these 18 picks

    2:02 p.m. March 13, 2021

    - Michael Brush

  3. Prothena upgraded to outperform from perform at Oppenheimer

    8:17 a.m. July 9, 2020

    - Tomi Kilgore

  4. Prothena upgraded to outperform from in line at Evercore ISI

    8:41 a.m. Nov. 19, 2019

    - Tomi Kilgore

  5. Prothena shares slide 2.2% premarket

    9:06 a.m. May 24, 2018

    - Ciara Linnane

  6. Prothena to lay off 57% of its workforce in reorganization

    9:05 a.m. May 24, 2018

    - Ciara Linnane

  7. Prothena expects to burn $40 mln to $50 mln of cash in 2018

    9:06 a.m. May 24, 2018

    - Ciara Linnane

  8. Prothena downgraded to sector perform from outperform at RBC Capital

    2:05 p.m. April 23, 2018

    - Tomi Kilgore

  9. Prothena shares plummet 60% on discontinued drug

    8:45 a.m. April 23, 2018

    - Emma Court

  10. Prothena shares plummet 60% on discontinued drug

    8:36 a.m. April 23, 2018

    - Emma Court

  11. Prothena shares surge on Celgene collaboration

    5:19 p.m. March 20, 2018

    - Wallace Witkowski

  12. Top Doc Quits Prothena As Key Trial Nears

    5:31 p.m. Feb. 5, 2018

    - Barrons Blogs

  13. Biotech Prothena shares fall after it scraps psoriasis trial

    11:52 a.m. Sept. 29, 2017

    - Ciara Linnane

  14. Loading more headlines...

Analyst Ratings

/news/nonmarketwatch/company/us/prta

Other News on PRTA

  1. Electrovaya: I'm Not Buying This Technological Small-Fry

    9:26 a.m. Sept. 14, 2022

    - Seeking Alpha

  2. Prothena GAAP EPS of -$0.88 misses by $0.31

    4:54 p.m. Aug. 8, 2022

    - Seeking Alpha

  3. Notable earnings after Monday's close

    5:35 p.m. Aug. 7, 2022

    - Seeking Alpha

  4. Prothena Q2 2022 Earnings Preview

    5:35 p.m. Aug. 5, 2022

    - Seeking Alpha

  5. Electric vehicle stocks race higher ahead of Tesla earnings

    11:25 a.m. July 20, 2022

    - Seeking Alpha

  6. Alzheimer’s drug developers are on decline after Roche setback

    11:44 a.m. June 16, 2022

    - Seeking Alpha

  7. 10-Q: PROTHENA CORP PUBLIC LTD CO

    4:42 p.m. May 5, 2022

    - Edgar Online - (EDG = 10Q, 10K)

  8. Notable earnings after Thursday's close

    5:35 p.m. May 4, 2022

    - Seeking Alpha

  9. Prothena (PRTA) Stock Gains 51% in a Year: What Lies Ahead?

    10:13 a.m. April 21, 2022

    - Zacks.com

  10. Prothena Corporation (PRTA) Investor Presentation - Slideshow

    1:48 a.m. March 31, 2022

    - Seeking Alpha

  11. Prothena (PRTA) IND Application Gets FDA Clearance for AD

    11:44 a.m. March 29, 2022

    - Zacks.com

  12. Prothena plans IND filing for Alzheimer’s candidate in 2023

    7:25 a.m. March 16, 2022

    - Seeking Alpha

  13. Loading more headlines...
/news/pressrelease/company/us/prta

Press Releases on PRTA

  1. Prothena to Participate in Upcoming Healthcare Conferences

    4:20 p.m. Sept. 1, 2022

    - GlobeNewswire

  2. Prothena to Participate in Jefferies Healthcare Conference

    4:05 p.m. June 2, 2022

    - GlobeNewswire

  3. Prothera Gains on New Drug Approval

    9:57 a.m. March 28, 2022

    - Baystreet.ca

  4. Prothena to Participate in Stifel 2022 Virtual CNS Days

    4:05 p.m. March 21, 2022

    - GlobeNewswire

  5. Loading more headlines...

Rates »

Link to MarketWatch's Slice.