Prothena Corp plc
Prothena Corp plc (PRTA) is a publicly traded company in the Unknown sector. Across all available filings, 20 corporate insiders have executed 629 transactions totaling $288.2M, demonstrating a bearish sentiment with -$134.8M in net insider flow. The most recent transaction on Jul 28, 2025 involved a transaction of 140,000 shares valued at $0.
PRTA Insider Activity Summary
Who Is Buying PRTA Stock?
No significant insider buying has been recorded for PRTA in the recent period.
Who Is Selling PRTA Stock?
No significant insider selling has been recorded for PRTA in the recent period.
Is Prothena Corp plc Insider Trading Bullish or Bearish?
Based on recent SEC filings, insider sentiment for PRTA is bearish with an Insider Alignment Score of 27/100 and a net flow of -$134.8M. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
PRTA Frequently Asked Questions
Understanding PRTA Insider Activity
Insider trading at Prothena Corp plc (PRTA) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 20 insiders are actively trading PRTA stock, having executed 629 transactions in the past 90 days. The most active insider is Capital, Llc Ecor1 (Executive), who has made 13 transactions totaling $114.6M.
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Track Prothena Corp plc Insider Activity
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