Prothena Corporation (PRTA)
NASDAQ: PRTA
· Real-Time Price · USD
8.24
0.18 (2.23%)
At close: Aug 15, 2025, 3:59 PM
8.20
-0.49%
After-hours: Aug 15, 2025, 05:52 PM EDT
13F Institute Ownership
Total Institutes of 168 in Prothena reduced their positions with a decrease of 14 investors compared to the previous quarter. A reduction of 1.27M shares, as total invested capital declined by $94.76M with ownership percentage dropping from 99.50% to 97.08%.
Options Activity
Institutions are holding more Calls Contracts as Puts Contracts, indicating a bullish sentiment.
Put/Call 0.310
0.31
Call Flow 245,700
76%
Put Flow 76,200
24%
Top Shareholders
| Institute | Ownership | Shares | Shares % Change | Market Value | Portfolio | Filing Date |
|---|---|---|---|---|---|---|
| Ecor1 Capital, LLC | 21.52% | 11.58M | +0.00% | 143.36M | 8.50% | May 15, 2025 |
| FMR LLC | 14.75% | 7.94M | -1.61% | 98.27M | < 0.01% | May 12, 2025 |
| Wellington Management Group Ll... | 9.66% | 5.2M | +1.34% | 64.34M | 0.01% | May 13, 2025 |
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