People · Operator

John Robert Walker

Named in public records as an officer, director or promoter · active 2022–2022 · Other Health Care

1
Companies
2
Filings
$17.9M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Perthera, Inc.Other Health CareSeries A$17.9M$49.3M2022
Operator network

John Robert Walker at the center, the companies they're named on, and every other operator named alongside them — an interlock map of shared founding teams, boards and funds. Name-matched, so treat as a research lead.

Emanuel Petricoin · 2 companies · 1 sharedEmanuel PetricoinGary Gregory · 2 companies · 1 sharedGary GregoryM. Dendy Young · 2 companies · 1 sharedM. Dendy YoungMichael Dendy Young · 2 companies · 1 sharedMichael Dendy You…Neil Callahan · 2 companies · 1 sharedNeil CallahanAlbert T Kelley · 1 companies · 1 sharedAlbert T KelleyAndrew Dendy Mignatti · 1 companies · 1 sharedAndrew Dendy Mign…Brad Dendy Stewart · 1 companies · 1 sharedBrad Dendy StewartEmanuel Dendy Petricoin · 1 companies · 1 sharedEmanuel Dendy Pet…Emmanuel Dendy Petricoin · 1 companies · 1 sharedEmmanuel Dendy Pe…Federoff Howard · 1 companies · 1 sharedFederoff HowardNeal Dendy Koller · 1 companies · 1 sharedNeal Dendy KollerNeil Dendy Callahan · 1 companies · 1 sharedNeil Dendy Callah…Perthera, Inc. · $17.9M raisedPerthera, Inc.John Robert WalkerJW
John Robert Walker Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

People named alongside John Robert Walker on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.

OperatorSharedTheir companies
Emanuel Petricoin12
M. Dendy Young12
Neil Callahan12
Gary Gregory12
Michael Dendy Young12
Neil Dendy Callahan11
Albert T Kelley11
Federoff Howard11
Neal Dendy Koller11
Emanuel Dendy Petricoin11
Brad Dendy Stewart11
Andrew Dendy Mignatti11
Emmanuel Dendy Petricoin11

People are matched by normalized name across records; a common name may merge distinct individuals. Treat as a research lead, the same way modeled valuations are directional, not quoted.