Quick Takeaways
- WELLINGTON MANAGEMENT GROUP LLP filed SCHEDULE 13G for Protagonist Therapeutics, Inc. Common Stock (PTGX).
- Disclosed ownership: 5.1%.
- Date of event: 31 Dec 2025.
WELLINGTON MANAGEMENT GROUP LLP - 31 Dec 2025 SCHEDULE 13G Report for Protagonist Therapeutics, Inc. Common Stock (PTGX)
- Filing Manager
- WELLINGTON MANAGEMENT GROUP LLP
- Reporting Manager
- Wellington Management Group LLP
- Symbol
- PTGX
- Shares outstanding
- 62,184,765 shares
- Disclosed Ownership
- 3,171,423 shares
- Ownership
- 5.1%
- Form type
- SCHEDULE 13G
- Filing time
- 10 Feb 2026, 11:19:49 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"WELLINGTON MANAGEMENT GROUP LLP disclosed 5.1% ownership in Protagonist Therapeutics, Inc. Common Stock (PTGX) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 10 Feb 2026, 11:19.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Wellington Management Group LLP | 5.1% | 3,171,423 | 0 | 2,542,632 | Taisia Lowe | Regulatory Analyst | |
| Wellington Group Holdings LLP | 5.1% | 3,171,423 | 0 | 2,542,632 | Taisia Lowe | Regulatory Analyst | |
| Wellington Investment Advisors Holdings LLP | 5.1% | 3,171,423 | 0 | 2,542,632 | Taisia Lowe | Regulatory Analyst |