---
title: "Stagwell Inc — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bf4a5a30-c2ec-58ea-8fbb-ea8eccfbebd1
json: https://whiteintel.dev/api/public/dossier/bf4a5a30-c2ec-58ea-8fbb-ea8eccfbebd1
identifier: sec:0000876883
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Stagwell Inc

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0000876883`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/bf4a5a30-c2ec-58ea-8fbb-ea8eccfbebd1  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bf4a5a30-c2ec-58ea-8fbb-ea8eccfbebd1  

## Ownership & control

### Owners / controllers

- **Penn Mark Jeffery** (10% owner) — https://whiteintel.dev/entity/81808d85-3fd5-5025-80ef-b1b0edebcc8d
- **Penn Mark Jeffery** (tenpercentowner) — https://whiteintel.dev/entity/81808d85-3fd5-5025-80ef-b1b0edebcc8d
- **POLPAT LLC** (tenpercentowner) — https://whiteintel.dev/entity/8fc2e6f1-dfc2-53d9-a278-be67e8346e93
- **BALLMER STEVEN A** (tenpercentowner) — https://whiteintel.dev/entity/ec6a2cfb-1585-5b8c-95e5-de9b39423057
- **STONEBRIDGE 2017 OFFSHORE, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/83730b3b-74bd-508e-8bc6-e7c75065c473
- **STONEBRIDGE 2017, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/6451fce1-d38e-512c-b732-c16cc42f3f8e
- **BRIDGE STREET OPPORTUNITY ADVISORS, L.L.C.** (tenpercentowner) — https://whiteintel.dev/entity/a65a886b-cc64-52ff-97e6-6a9652aa91ed
- **GOLDMAN SACHS GROUP INC** (tenpercentowner) — https://whiteintel.dev/entity/10616dd0-5b35-5485-a921-1410ec73e40a
- **BROAD STREET PRINCIPAL INVESTMENTS, L.L.C.** (tenpercentowner) — https://whiteintel.dev/entity/fdbd96af-4460-5913-a451-ff385b116934
- **GOLDMAN SACHS & CO** (tenpercentowner) — https://whiteintel.dev/entity/ff80cf88-76a9-5f84-9e8d-a569b55699ff
- **ALPINVEST PEP SECONDARY 2017 C.V.** (tenpercentowner) — https://whiteintel.dev/entity/260206ab-46c1-59c4-bc55-1ca9eb9768ff
- **ALPINVEST PARTNERS US SECONDARY INVESTMENTS 2016 I C.V.** (tenpercentowner) — https://whiteintel.dev/entity/c070878a-5c30-5a45-a90a-e567d1ddec4d
- **ALPINVEST GA SECONDARY C.V.** (tenpercentowner) — https://whiteintel.dev/entity/591fae89-a11d-52b2-8ebc-6519d2edd93b
- **ALPINVEST SECONDARIES FUND (EURO) VI C.V.** (tenpercentowner) — https://whiteintel.dev/entity/d08ba3fc-68df-5ea5-8b2f-9badd2b8d8c5
- **AG SECONDARY C.V.** (tenpercentowner) — https://whiteintel.dev/entity/75c84b0f-face-5a05-b96f-db433c19f445
- **ALPINVEST SECONDARIES FUND VI C.V.** (tenpercentowner) — https://whiteintel.dev/entity/2d462fd1-0a93-56b5-902d-14fae8e32529
- **APSS SECONDARY C.V.** (tenpercentowner) — https://whiteintel.dev/entity/c8ee01cb-5329-54ea-bb35-e7303f0febc9
- **AJ SECONDARY C.V.** (tenpercentowner) — https://whiteintel.dev/entity/2d2b5a54-4754-542f-907b-bde58aecc480
- **ALPINVEST PARTNERS B.V.** (tenpercentowner) — https://whiteintel.dev/entity/7e920fb9-ec49-5c3a-882a-61f2026f8a53
- **GGG US SECONDARY 2017 C.V.** (tenpercentowner) — https://whiteintel.dev/entity/190c6ff2-bb77-56a8-9075-208b599b2af9
- **AP FONDO SECONDARIES II C.V.** (tenpercentowner) — https://whiteintel.dev/entity/e7d64dfb-2c46-543a-aaea-4a235fa1b940
- **SCHRIER DEREK C** (tenpercentowner) — https://whiteintel.dev/entity/5489a1cf-66f6-5861-93a7-25b874f06d1f
- **INDABA CAPITAL MANAGEMENT, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/845b6c55-954d-58c0-abea-1945286af8e0
- **IC GP, LLC** (tenpercentowner) — https://whiteintel.dev/entity/7287ed34-ef52-51f0-89e9-822057c3f16b
- **STAGWELL GROUP LLC** (tenpercentowner) — https://whiteintel.dev/entity/8e3eb92d-57dd-5513-99b7-c565accc106e
- **STAGWELL AGENCY HOLDINGS LLC** (tenpercentowner) — https://whiteintel.dev/entity/45adc1f2-7a4d-5913-b0e3-e441d4d21ca7
- **NADAL MILES** (tenpercentowner) — https://whiteintel.dev/entity/e7e94253-4989-54a5-8a1a-8ebcfeb91265

### UBO chain (walk to the ultimate owner)

A **1000-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **Stagwell Inc** — https://whiteintel.dev/entity/bf4a5a30-c2ec-58ea-8fbb-ea8eccfbebd1 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Stagwell Inc**. Human view: https://whiteintel.dev/entity/bf4a5a30-c2ec-58ea-8fbb-ea8eccfbebd1 · Structured JSON: https://whiteintel.dev/api/public/dossier/bf4a5a30-c2ec-58ea-8fbb-ea8eccfbebd1._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._