Quick Takeaways
- WELLINGTON MANAGEMENT GROUP LLP filed SCHEDULE 13G/A for Celldex Therapeutics, Inc. Common Stock (CLDX).
- Disclosed ownership: 11%.
- Date of event: 31 Oct 2025.
WELLINGTON MANAGEMENT GROUP LLP - 31 Oct 2025 SCHEDULE 13G/A Report for Celldex Therapeutics, Inc. Common Stock (CLDX)
- Filing Manager
- WELLINGTON MANAGEMENT GROUP LLP
- Reporting Manager
- Wellington Management Group LLP
- Symbol
- CLDX
- Shares outstanding
- 66,619,333 shares
- Disclosed Ownership
- 7,394,746 shares
- Ownership
- 11%
- Form type
- SCHEDULE 13G/A
- Filing time
- 07 Nov 2025, 08:18:23 UTC
- Date of event
- 31 Oct 2025
- Previous filing
- 12 Aug 2025
- Next filing
- 10 Feb 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"WELLINGTON MANAGEMENT GROUP LLP disclosed 11% ownership in Celldex Therapeutics, Inc. Common Stock (CLDX) on 31 Oct 2025."
What Changed
- Previous schedule filing date: 12 Aug 2025.
- Current filing was accepted on 07 Nov 2025, 08:18.
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.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Wellington Management Group LLP | 11% | 7,394,746 | 0 | 6,910,320 | Taisia Lowe | Regulatory Analyst | |
| Wellington Group Holdings LLP | 11% | 7,394,746 | 0 | 6,910,320 | Taisia Lowe | Regulatory Analyst | |
| Wellington Investment Advisors Holdings LLP | 11% | 7,394,746 | 0 | 6,910,320 | Taisia Lowe | Regulatory Analyst | |
| Wellington Management Company LLP | 11% | 7,394,746 | 0 | 6,900,344 | Taisia Lowe | Regulatory Analyst |