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PRTA
NASDAQ Life Sciences

Prothena Authorizes Significant $100M Share Repurchase Program

Reported by Dow Jones Newswires
Sentiment info
Positive
Importance info
8
Price
$9.81
Mkt Cap
$466.706M
52W Low
$4.32
52W High
$16.16
Market data snapshot near publication time

Summary

Prothena has announced a new share repurchase plan authorizing the company to buy back up to $100 million of its ordinary shares. This is a highly material capital allocation decision, as the authorized amount represents over 20% of the company's current market capitalization of approximately $467 million. The move signals strong management confidence in the company's valuation and future prospects, potentially providing significant support for the stock price by reducing the outstanding share count and boosting earnings per share. This follows recent Q4 and full-year 2025 financial results reported on February 19th. Traders will closely monitor the execution of this program and its impact on the company's financial structure and stock performance.

At the time of this announcement, PRTA was trading at $9.81 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $466.7M. The 52-week trading range was $4.32 to $16.16. This news item was assessed with positive market sentiment and an importance score of 8 out of 10. Source: Dow Jones Newswires.


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PRTA - Latest Insights

PRTA
Jun 09, 2026, 8:00 AM EDT
Filing Type: 144
Importance Score:
7
Price at Filing: $8.71
Real-time Price: $8.51 info
Change: -$0.200 (-2%) info
Market Cap: $431.914M info
PRTA
May 07, 2026, 4:32 PM EDT
Source: Wiseek News
Importance Score:
9
Price at Filing: $10.53
Real-time Price: $8.51 info
Change: -$2.02 (-19%) info
Market Cap: $431.914M info
PRTA
May 07, 2026, 4:20 PM EDT
Filing Type: 10-Q
Importance Score:
9
Price at Filing: $10.53
Real-time Price: $8.51 info
Change: -$2.02 (-19%) info
Market Cap: $431.914M info
PRTA
May 07, 2026, 4:14 PM EDT
Filing Type: 8-K
Importance Score:
9
Price at Filing: $10.53
Real-time Price: $8.51 info
Change: -$2.02 (-19%) info
Market Cap: $431.914M info
PRTA
Apr 27, 2026, 4:07 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $11.34
Real-time Price: $8.51 info
Change: -$2.83 (-25%) info
Market Cap: $431.914M info
PRTA
Mar 27, 2026, 4:03 PM EDT
Filing Type: DEF 14A
Importance Score:
7
Price at Filing: $9.26
Real-time Price: $8.51 info
Change: -$0.750 (-8%) info
Market Cap: $431.914M info
PRTA
Feb 27, 2026, 4:45 PM EST
Filing Type: 8-K
Importance Score:
8
Price at Filing: $9.01
Real-time Price: $8.51 info
Change: -$0.500 (-6%) info
Market Cap: $431.914M info
PRTA
Feb 27, 2026, 4:15 PM EST
Source: Dow Jones Newswires
Importance Score:
8
Price at Filing: $9.81
Real-time Price: $8.51 info
Change: -$1.30 (-13%) info
Market Cap: $431.914M info
PRTA
Feb 27, 2026, 4:04 PM EST
Filing Type: 10-K
Importance Score:
7
Price at Filing: $9.15
Real-time Price: $8.51 info
Change: -$0.6399 (-7%) info
Market Cap: $431.914M info
PRTA
Feb 19, 2026, 4:07 PM EST
Filing Type: 8-K
Importance Score:
7
Price at Filing: $9.03
Real-time Price: $8.51 info
Change: -$0.520 (-6%) info
Market Cap: $431.914M info