SUBJECT-2331.dossier · company · status: active
MI
subject of file

MDC Partners Inc

Former Canadian corporation that became subsidiary of Stagwell through 2021 transaction
Tracked because Former Canadian corporation that became subsidiary of Stagwell through 2021 transaction · 4 documented connections
Facts on record6
Connections mapped4
Sources cited19
Evidence: 1S 5I
Network web → Timeline → Compare with… → Position Drift → Coverage tone → View on Graph → Export CSV JSON Dossier ← Entity Directory
Stated vs Revealed
No documented contradictions on file.
PATTERN person → [regulatory filing] → government agency → [regul... 8424× PATTERN company → [regulatory filing] → government agency → [regu... 5356× PATTERN government agency → [regulatory filing] → government agen... 3121× PATTERN company → [oversight] → government agency → [regulatory f... 2394× PATTERN organization → [regulatory filing] → government agency → ... 2392×
Connection Map
Key Connections
→ Securities and Exchange Commission government agency
regulatory_filing
MDC Partners Inc submitted a filing to the Securities and Exchange Commission on 2020-03-12.
← Stagwell Inc company
merger/parent
Stagwell Inc was formed through the combination of Stagwell Marketing Group and MDC Partners, completed on August 2, 2021.
→ Midas OpCo Holdings LLC company
predecessor
MDC Partners Inc converted to become Midas OpCo Holdings LLC in 2021 transaction
Facts (6)
Data Freshness
Ageing Last update: 160d ago · Avg age: 2389d
Confidence Tiers: Primary Source — cross-referenced government/corporate filings Pending Review — sourced but not independently verified AI Inference — analytical hypothesis from cross-referencing
✓ Verified Findings (1)
Independently re-checked: a second model read the source artifact and confirmed it supports the extracted claim.
✓ verified Partially Corroborated MDC Partners Inc filed filing with the SEC on 2020-03-12. Accession number: N/A.
All Connections (4)
predecessor confirmed
MDC Partners Inc converted to become Midas OpCo Holdings LLC in 2021 transaction
→ Securities and Exchange Commission government agency
regulatory_filing primary since 2020
MDC Partners Inc submitted a filing to the Securities and Exchange Commission on 2020-03-12.
← Stagwell Inc company
merger/parent primary since 2021
Stagwell Inc was formed through the combination of Stagwell Marketing Group and MDC Partners, completed on August 2, 2021.
parent company history secondary since 2024
MDC Partners Inc was the predecessor holding company that owned SKDK before it rebranded to Stagwell Inc; SKDK appears in the list under Midas OpCo Holdings LLC and MDC Partners Inc entities.
Sources (19)
2013-02-14 ↗ SEC EDGAR: filing — MDC Partners Inc (2013-02-14) sec_filing Processed 📜 Receipt
2020-03-12 ↗ SEC EDGAR: filing — MDC Partners Inc (2020-03-12) sec_filing Processed 📜 Receipt
2011-02-14 ↗ SEC EDGAR: filing — MDC Partners Inc (2011-02-14) sec_filing Processed 📜 Receipt
2014-02-14 ↗ SEC EDGAR: filing — MDC Partners Inc (2014-02-14) sec_filing Processed 📜 Receipt
2020-03-12 ↗ SEC EDGAR: 4 — MDC PARTNERS INC (2020-03-12) sec_filing Processed 📜 Receipt
2011-02-14 ↗ SEC EDGAR: SC 13G/A — MDC PARTNERS INC (2011-02-14) sec_filing Processed 📜 Receipt
2014-03-10 ↗ SEC EDGAR: 10-K — MDC PARTNERS INC (2014-03-10) sec_filing Processed 📜 Receipt
2014-02-14 ↗ SEC EDGAR: SC 13G/A — MDC PARTNERS INC (2014-02-14) sec_filing Processed 📜 Receipt
2013-02-14 ↗ SEC EDGAR: SC 13G/A — MDC PARTNERS INC (2013-02-14) sec_filing Processed 📜 Receipt
2013-03-07 ↗ SEC EDGAR: 10-K — MDC PARTNERS INC (2013-03-07) sec_filing Processed 📜 Receipt
2026-05-09 UNVERIFIED SEARCH_ERROR: MDC Partners Inc not found in opencorporates claim_flag Processed 📜 Receipt
2014-03-10 ↗ SEC EDGAR: filing — MDC Partners Inc (2014-03-10) sec_filing Processed 📜 Receipt
2013-03-07 ↗ SEC EDGAR: filing — MDC Partners Inc (2013-03-07) sec_filing Processed 📜 Receipt
2026 UNVERIFIED Research: MDC Partners Inc — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt
2026 UNVERIFIED Research: MDC Partners Inc — Court records (no results) court_document Processed 📜 Receipt
2026 UNVERIFIED Research: MDC Partners Inc — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt
2026 UNVERIFIED Research: MDC Partners Inc — Corporate registrations (no results) government_disclosure Processed 📜 Receipt
2026 UNVERIFIED Research: MDC Partners Inc — USASpending contracts (no results) contract Processed 📜 Receipt
2020-03-12 ↗ SEC EDGAR: filing — MDC Partners Inc (2020-03-12) web_search Processed 📜 Receipt