$8.76
0.182.1%
At close: Aug 7, 5:00 PM EST
Prothena Corp PLC
PRTANASDAQ
Earnings: Q2 2026 Earnings were released on Thu Aug 6th, after the market close
Prothena Corp Ownership & Insider Activity
Prothena Corp (PRTA) institutional and insider ownership, recent insider transactions and ownership breakdown.
Insiders own 0.8% of shares outstanding. Institutional investors hold 42.2%. Over the past 90 days, insiders made 5 purchases worth $3.1M and 2 sales worth $206K.
Shares Outstanding
52.353M
Shares Float
43.643M
Insider Shares Owned
423.900K
Insider % Owned
0.8%
Institutional Shares Held
22.095M
Institutional % Held
42.2%
Ownership Breakdown
Net Insider Activity by Month
Purchases (90d)
5
$3.1M total
Sales (90d)
2
$206K total
Net Activity
Net Buying
Net Value (90d)
$2.9M
