No ownership or control links for Cox John are resolved in the current sources yet — view the network graph to expand, or pull the cited JSON dossier.

What is Cox John's risk level?

WhiteIntel flags Cox John as low risk. Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership.

Where does Cox John appear across sources?

Cox John is indexed in the WhiteIntel corporate-ownership graph (US), with a source on every claim.

LIVE · CORPUS

PersonLow

Cox John

Name: Cox John — ownership dossier
Creator: WhiteIntel
License: https://whiteintel.dev/terms
Keywords: corporate ownership, beneficial ownership, UBO, corporate intelligence, OSINT, corporate registry, Cox John, Person, US

Cox John — US person (sec:0001498428). 8 holdings. Every claim linked to its source.

controls 8 companies

Ownership graph Export .md

JSON / MCPsample

The finding

Controls or directs 8 companies in the resolved graph.

Investigative lead by resolved identity, not a legal determination.

/01

Registry identity

Controls: 8 companies
Risk: Low
Jurisdiction: US

/02

Control & directorships

Links are shown as observed in a source registry — we do not currently hold ownership end dates, so a link here may since have ended. Each row carries its source; check it before relying on currency.

Controlled by

None in current sources.

Directorships & controlled companies

Cox John
- Dyne Therapeutics, Inc.· officer· via SEC EDGAR (Form 3/4/5)
- SIGILON THERAPEUTICS, INC.· director· via SEC EDGAR
- REPLIGEN CORP· director· via SEC EDGAR
- BIOVERATIV INC.· director· via SEC EDGAR
- BIOGEN INC.· officer· via SEC EDGAR

Nothing further is withheld here. The ownership and control links above are everything we have resolved for Cox John — there is no deeper chain behind a paywall. Absence means “not observed in our current sources” — it is not a finding of none.

Monitoring

Coverage of Cox John is still thin in the current sources. Watch it and we'll flag the moment new ownership, filings or risk signals land.

Explore US coverage

WHAT YOU CAN SEEFREE

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4 items you can read right now — no account, no payment.

Identity, nationality & aliases
Sanctions, PEP & watchlist detail
Direct connections (1 hop)
Community notes

Nothing further on Cox John is behind a paywall — everything we hold on this subject is already on this page.

/03

People & control

5 parties · 0 current

Every officer, person with significant control and cross-company role we hold, resolved into one entry per party. Roles are registry records, not a claim of control.

●
BIOGEN INC.
Also holds roles at 87 other companies
- SHERWIN STEPHEN Adirector
- Godbout Seanofficer
- Singhal Priyaofficer
●
BIOVERATIV INC.
Also holds roles at 13 other companies
- Protopapas Annadirector
- PAGLIA LOUIS Jdirector
- Germano Geno Jdirector
●
Dyne Therapeutics, Inc.
Also holds roles at 52 other companies
- Friedl-Naderer Johannaofficer
- Scalzo Richard Williamofficer
- Beskrovnaya Oxanaofficer
●
REPLIGEN CORP
Also holds roles at 52 other companies
- Bylund Jamesofficer
- Hunt Anthonydirector
- Pax Margaretdirector
●
SIGILON THERAPEUTICS, INC.
Also holds roles at 25 other companies
- ASHTON-RICKARDT PHILIPofficer
- FLAGSHIP PIONEERING SPECIAL OPPORTUNITIES FUND II, L.P.tenpercentowner
- SHENANDOAH ACQUISITION CORPtenpercentowner

5 parties · 0 current. Ceased and resigned records are retained as history.

/04

Common questions

Who owns Cox John?: No ownership or control links for Cox John are resolved in the current sources yet — view the network graph to expand, or pull the cited JSON dossier.
What is Cox John's risk level?: WhiteIntel flags Cox John as low risk. Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership.
Where does Cox John appear across sources?: Cox John is indexed in the WhiteIntel corporate-ownership graph (US), with a source on every claim.

Community intel

Crowd leads · unverified

Tips, corrections and leads contributed by the community on Cox John. These are unverified leads, not WhiteIntel findings — we surface them for investigators to chase, and analyse the corroborated ones into SnitchScore.

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