Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Stagwell Group LLC - 15 Dec 2025 SCHEDULE 13D/A Report for Stagwell Inc Class A Common Stock (STGW)
- Filing manager
- Stagwell Group LLC
- Reporting owner
- Stagwell Group LLC
- Security
- Stagwell Inc Class A Common Stock
- Beneficially owned shares
- 0 shares
- Class ownership
- 0.8%
- Large-stake signal
-
Ownership
0.8%
Beneficial ownership of this reported class.
Shares
0 shares
Shares beneficially owned as disclosed.
Event date
15 Dec 2025
Date tied to the ownership event or amendment.
Accepted by SEC
13 Jan 2026
EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Symbol
- STGW
- Form type
- SCHEDULE 13D/A
- Accepted by SEC
- 13 Jan 2026, 19:41:53 UTC
- Event date
- 15 Dec 2025
- Previous filing
- 21 Jul 2025
- SEC filing
- View on sec.gov
Ownership signal
2 signals
Subject security
1 source field
SEC evidence
5 source fields
Key filing fact
Stagwell Group LLC disclosed 0.8% ownership in Stagwell Inc Class A Common Stock (STGW) on 15 Dec 2025.
Key facts
- Stagwell Group LLC filed SCHEDULE 13D/A for Stagwell Inc Class A Common Stock (STGW).
- Disclosed ownership: 0.8%.
- Date of event: 15 Dec 2025.
Change
- Previous schedule filing date: 21 Jul 2025.
- Current filing was accepted on 13 Jan 2026, 19:41.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (4)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Stagwell Group LLC | 0.8% | 0 | 0 | 2,000,000 | /s/ Mark J. Penn | Mark J. Penn/Manager | 0001771444 |
| Stagwell Agency Holdings LLC | 0% | 0 | 0 | 0 | /s/ Mark J. Penn | Mark J. Penn/Manager | 0001771728 |
| Penn Mark Jeffery | 12% | 29,368,697 | 27,368,697 | 2,000,000 | /s/ Mark J. Penn | Mark J. Penn | 0001771735 |
| Stagwell Media LP | 0% | 0 | 0 | 0 | /s/ Mark J. Penn | Mark J. Penn/Manager | 0001876672 |
CIK / CUSIP context first