Mark Jeffery Penn

Chief Executive Officer of Stagwell Inc

Tracked because Chief Executive Officer of Stagwell Inc · 3 documented connections

Facts on record6

Connections mapped3

Sources cited7

Evidence: 1P 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 → [affiliation] → company → [employment] → person 140× PATTERN person → [employment] → company → [affiliation] → company 68× PATTERN company → [affiliation] → company → [employment] → person 68× PATTERN person → [employment] → company → [contractor] → person 58× PATTERN person → [contractor] → company → [employment] → person 58×

TIMELINE Role Overlap Visualizer →

Connection Map

Key Connections

→ The Stagwell Group LLC company

controlling_person

Mark Penn is the controlling person of The Stagwell Group LLC

Facts (6)

Data Freshness

Ageing Last update: 159d ago · Avg age: 248d

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 Primary Source Mark Jeffery Penn holds 22,625,558 Class A shares directly and 2,000,000 shares indirectly through The Stagwell Group LLC where he is the controlling person

Date: 2025-04-04 Added: 11 Apr 2026 ↗ SOURCE: Form 4 insider trading filing

All Connections (3)

→ The Stagwell Group LLC company

controlling_person confirmed

Mark Penn is the controlling person of The Stagwell Group LLC

← Harris Poll company

corporate leadership inferential since 2026

Mark Jeffery Penn is associated with Stagwell Inc, the parent company of Harris Poll, and served as chairman or CEO of Harris Poll.

← Stagwell Inc company

individual, employment secondary since 2023

Mark Penn is likely associated with Stagwell Inc as CEO (public knowledge supports this, and the name appears adjacent to Stagwell in the known entities list, though no explicit connection is documented in provided facts). · Mark Jeffery Penn is the CEO and a co-founder of Stagwell Inc., having led the company since its inception and subsequent merger with MDC Partners.

Sources (7)

2026-05-10 UNVERIFIED SEARCH_ERROR: Mark Jeffery Penn not found in fec claim_flag Processed 📜 Receipt

2026 UNVERIFIED Research: Mark Jeffery Penn — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt

2026 UNVERIFIED Research: Mark Jeffery Penn — Court records (no results) court_document Processed 📜 Receipt

2026 UNVERIFIED Research: Mark Jeffery Penn — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt

2026 UNVERIFIED Research: Mark Jeffery Penn — FEC donations (no results) fec_record Processed 📜 Receipt

2026 UNVERIFIED Research: Mark Jeffery Penn — SEC filings (no results) sec_filing Processed 📜 Receipt

2025-04-04 ↗ Form 4 insider trading filing web_search Processed 📜 Receipt