SCHEDULE 13G/A: Wellington Management Entities Disclose 0.2% Stake in Prothena Corporation
Beneficial Ownership Disclosure
Wellington Management Group LLP and its affiliates have filed an amended Schedule 13G, disclosing a beneficial ownership of 0.2% of Prothena Corporation Public Limited Company's Ordinary Shares as of May 30, 2025.
Summary
- Wellington Management Group LLP, Wellington Group Holdings LLP, and Wellington Investment Advisors Holdings LLP jointly reported beneficial ownership of Prothena Corporation Public Limited Company.
- As of May 30, 2025, the aggregate amount beneficially owned by each reporting person is 108,208 Ordinary Shares.
- This represents 0.2% of the total class of Prothena Corporation's Ordinary Shares.
- The reporting persons hold shared voting power and shared dispositive power over all 108,208 shares.
- The shares are owned of record by clients of various investment advisers under Wellington Management Group LLP, with no single client known to own more than five percent of this class of securities.
Sentiment
Score: 5
Explanation: This is a routine regulatory filing (Schedule 13G) disclosing beneficial ownership, which is neutral in sentiment. It does not contain information that would typically indicate positive or negative performance or outlook for the company.
Future Outlook
NA
Industry Context
This filing is a routine disclosure by an institutional investment manager, Wellington Management Group LLP, detailing its passive beneficial ownership in Prothena Corporation. Such filings provide transparency on significant holdings by large investment firms, which is standard practice across the financial industry and does not typically indicate a strategic shift or new investment thesis.
Stakeholder Impact
- This filing provides transparency to shareholders and the broader market regarding the beneficial ownership stake held by Wellington Management Group LLP and its affiliates in Prothena Corporation.
Key Dates
| Date | Description |
|---|---|
| 05/30/2025 | Date of event requiring the filing of this statement |
| 06/06/2025 | Date of filing of this Schedule 13G amendment |
Keywords
Prothena Corporation, Wellington Management Group, Schedule 13G, Beneficial Ownership, Ordinary Shares, SEC Filing, Investment Management
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