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PRTA Company Profile and Key Details

NASDAQ : PRTA

Prothena Corporation plc

$9.30

0.1+1.09%

At Close 4:00 PM

60.49

BESG ScoreESG Rating

Profile Key Stats Analyst Ratings Ownership Ratios Financials Dividend & splits Sentiment Forecast

Price Chart

Stock Price Today

Prothena Corporation plc (PRTA) stock surged +1.09%, trading at $9.30 on NASDAQ, up from the previous close of $9.20. The stock opened at $9.12, fluctuating between $8.96 and $9.97 in the recent session.

Stock Snapshot

9.2

Prev. Close

9.12

Open

500.59M

Market Cap

53.83M

Number of Shares

8.96

Day Low

9.9699

Day High

-4.1

P/E Ratio

78.95%

Free Float in %

-2.27

EPS (TTM)

10.46

Book Value

-2.55

Cash Flow per Share

774.02K

Volume

Relevant Articles

SEC Fillings

Current Report (8-k)

Filing Date	Accepted Date

Annual Report (10-k)

Filing Date	Accepted Date

Stock Price History Chart

Date	Open	High	Low	Close	Volume
Apr 21, 2025	9.12	9.97	9.00	9.30	773.79K
Apr 17, 2025	9.17	9.49	9.10	9.20	340.98K
Apr 16, 2025	9.51	9.58	9.15	9.26	395.68K
Apr 15, 2025	9.88	10.04	9.40	9.59	380.76K
Apr 14, 2025	10.45	10.45	9.75	9.94	386.75K
Apr 11, 2025	9.69	10.27	9.59	10.22	443.62K
Apr 10, 2025	9.96	10.15	9.54	9.69	460.79K
Apr 09, 2025	10.22	10.79	9.30	10.26	1.33M
Apr 08, 2025	11.24	11.50	10.35	10.48	746.55K
Apr 07, 2025	10.37	11.28	10.00	10.84	1.13M
Apr 04, 2025	11.02	11.37	10.68	10.86	417K
Apr 03, 2025	11.57	11.84	11.11	11.32	456.54K
Apr 02, 2025	11.60	12.20	11.54	12.14	555.67K
Apr 01, 2025	12.27	12.45	11.42	11.74	954.17K
Mar 31, 2025	12.66	12.71	11.78	12.38	535.51K
Mar 28, 2025	13.03	13.22	12.70	13.14	211.93K
Mar 27, 2025	13.52	13.52	12.71	13.01	284.21K
Mar 26, 2025	12.66	13.39	12.46	13.37	672.31K
Mar 25, 2025	13.27	13.30	12.57	12.65	391.2K
Mar 24, 2025	13.17	13.71	13.11	13.34	356.25K

Contact Details

Dublin, 2

Ireland

Website: https://www.prothena.comContact: 353 123 62500

About Company

Prothena Corporation plc, a late-stage clinical company, focuses on discovery and development of novel therapies for life-threatening diseases in the United States. The company is involved in developing Birtamimab, an investigational humanized antibody that is in Phase III clinical trial for the treatment of AL amyloidosis; Prasinezumab, a humanized monoclonal antibody, which is in Phase IIb clinical trial for the treatment of Parkinson's disease; PRX004 that completed Phase I clinical trial for the treatment of Transthyretin amyloidosis; and PRX005, which is in Phase I clinical trial for the treatment of Alzheimer's disease. Its discovery and preclinical programs include PRX012 for the treatment of Alzheimer's disease; and dual Aß-Tau vaccine for the treatment and prevention of Alzheimer's disease. Prothena Corporation plc has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target alpha-synuclein; and a collaboration agreement with Bristol-Myers Squibb to develop antibodies. The company was founded in 2012 and is based in Dublin, Ireland.

Frequently Asked Questions

What is the current Prothena Corporation plc (PRTA) stock price?

Prothena Corporation plc (NASDAQ: PRTA) stock price is $9.30 in the last trading session. During the trading session, PRTA stock reached the peak price of $9.97 while $8.96 was the lowest point it dropped to. The percentage change in PRTA stock occurred in the recent session was 1.09% while the dollar amount for the price change in PRTA stock was $0.10.

PRTA's industry and sector of operation?

The NASDAQ listed PRTA is part of Biotechnology industry that operates in the broader Healthcare sector. Prothena Corporation plc designs, manufactures, and markets smartphones, personal computers, tablets, wearables, and accessories worldwide.

Who are the executives of PRTA?

Ms. Carol D. Karp
Chief Regulatory Officer
Dr. Hideki Garren M.D., Ph.D.
Chief Medical Officer
Ms. Karin L. Walker CPA, CPA
Chief Accounting Officer & Controller
Ms. Jennifer Zibuda
Director of Investor Relations & Communication
Mr. Brandon S. Smith
Chief Operating Officer
Mr. Michael J. Malecek
Chief Legal Officer & Company Sec.
Dr. Gene G. Kinney Ph.D.
Pres, Chief Executive Officer & Director
Dr. Wagner M. Zago
Chief Scientific Officer
Ms. Yvonne M. Tchrakian
Company Sec.
Mr. Tran B. Nguyen M.B.A.
Chief Financial Officer & Chief Strategy Officer

How PRTA did perform over past 52-week?

PRTA's closing price is 3.33% higher than its 52-week low of $9.00 where as its distance from 52-week high of $25.42 is -63.41%.

How many employees does PRTA have?

Number of PRTA employees currently stands at 163.

Link for PRTA official website?

Official Website of PRTA is: https://www.prothena.com

How do I contact PRTA?

PRTA could be contacted at phone 353 123 62500 and can also be accessed through its website. PRTA operates from 77 Sir John Rogerson’s Quay, Dublin, 2, Ireland.

How many shares of PRTA are traded daily?

PRTA stock volume for the day was 774.02K shares. The average number of PRTA shares traded daily for last 3 months was 451.64K.

What is the market cap of PRTA currently?

The market value of PRTA currently stands at $500.59M with its latest stock price at $9.30 and 53.83M of its shares outstanding.

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Price Chart

Stock Price Today

Stock Snapshot

9.2

Prev. Close

9.12

Open

500.59M

Market Cap

53.83M

Number of Shares

8.96

Day Low

9.9699

Day High

-4.1

P/E Ratio

78.95%

Free Float in %

-2.27

EPS (TTM)

10.46

Book Value

-2.55

Cash Flow per Share

774.02K

Volume

Relevant Articles

SEC Fillings

Current Report (8-k)

Filing Date	Accepted Date

Annual Report (10-k)

Filing Date	Accepted Date

Stock Price History Chart

Date	Open	High	Low	Close	Volume
Apr 21, 2025	9.12	9.97	9.00	9.30	773.79K
Apr 17, 2025	9.17	9.49	9.10	9.20	340.98K
Apr 16, 2025	9.51	9.58	9.15	9.26	395.68K
Apr 15, 2025	9.88	10.04	9.40	9.59	380.76K
Apr 14, 2025	10.45	10.45	9.75	9.94	386.75K
Apr 11, 2025	9.69	10.27	9.59	10.22	443.62K
Apr 10, 2025	9.96	10.15	9.54	9.69	460.79K
Apr 09, 2025	10.22	10.79	9.30	10.26	1.33M
Apr 08, 2025	11.24	11.50	10.35	10.48	746.55K
Apr 07, 2025	10.37	11.28	10.00	10.84	1.13M
Apr 04, 2025	11.02	11.37	10.68	10.86	417K
Apr 03, 2025	11.57	11.84	11.11	11.32	456.54K
Apr 02, 2025	11.60	12.20	11.54	12.14	555.67K
Apr 01, 2025	12.27	12.45	11.42	11.74	954.17K
Mar 31, 2025	12.66	12.71	11.78	12.38	535.51K
Mar 28, 2025	13.03	13.22	12.70	13.14	211.93K
Mar 27, 2025	13.52	13.52	12.71	13.01	284.21K
Mar 26, 2025	12.66	13.39	12.46	13.37	672.31K
Mar 25, 2025	13.27	13.30	12.57	12.65	391.2K
Mar 24, 2025	13.17	13.71	13.11	13.34	356.25K

Contact Details

Dublin, 2

Ireland

Website: https://www.prothena.comContact: 353 123 62500

About Company

Frequently Asked Questions

What is the current Prothena Corporation plc (PRTA) stock price?

PRTA's industry and sector of operation?

Who are the executives of PRTA?

How PRTA did perform over past 52-week?

PRTA's closing price is 3.33% higher than its 52-week low of $9.00 where as its distance from 52-week high of $25.42 is -63.41%.

How many employees does PRTA have?

Number of PRTA employees currently stands at 163.

Link for PRTA official website?

Official Website of PRTA is: https://www.prothena.com

How do I contact PRTA?

PRTA could be contacted at phone 353 123 62500 and can also be accessed through its website. PRTA operates from 77 Sir John Rogerson’s Quay, Dublin, 2, Ireland.

How many shares of PRTA are traded daily?

PRTA stock volume for the day was 774.02K shares. The average number of PRTA shares traded daily for last 3 months was 451.64K.

What is the market cap of PRTA currently?

The market value of PRTA currently stands at $500.59M with its latest stock price at $9.30 and 53.83M of its shares outstanding.

Employees	163
Beta	0.07
Sales or Revenue	$91.37M
5Y Sales Change%	70.122%
Fiscal Year Ends	December
Sector	Healthcare
Industry	Biotechnology

Employees	163
Beta	0.07
Sales or Revenue	$91.37M
5Y Sales Change%	70.122%
Fiscal Year Ends	December
Sector	Healthcare
Industry	Biotechnology

PRTA Company Profile and Key Details

Prothena Corporation plc

Price Chart

Stock Price Today

Stock Snapshot

Relevant Articles

SEC Fillings

Current Report (8-k)

Annual Report (10-k)

Stock Price History Chart

Contact Details

About Company

Company Information

Frequently Asked Questions

Price Chart

Stock Price Today

Stock Snapshot

Relevant Articles

SEC Fillings

Current Report (8-k)

Annual Report (10-k)

Stock Price History Chart

Contact Details

About Company

Company Information

Frequently Asked Questions