People · Operator

Mark Theeuwes

Named in public records as an officer, director or promoter · active 2019–2024 · Pharmaceuticals

3
Companies
6
Filings
$186.6M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Reunion Neuroscience, Inc.PharmaceuticalsSeries D+$119.8M$1.5B2024
Receptor Holdings, Inc.PharmaceuticalsSeries B$36.2M$140.9M2021
Engage Therapeutics, Inc.PharmaceuticalsSeries B$30.6M$238.0M2019
Operator network

Mark Theeuwes 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.

Briggs Morrison · 8 companies · 1 sharedBriggs MorrisonAlon Lazarus · 7 companies · 1 sharedAlon LazarusAnsbert Gadicke · 7 companies · 1 sharedAnsbert GadickeMichael Ehlers · 6 companies · 1 sharedMichael EhlersRobert Alexander · 6 companies · 1 sharedRobert AlexanderEdward Smith · 5 companies · 1 sharedEdward SmithNathan Bryson · 3 companies · 1 sharedNathan BrysonEllen Lubman · 2 companies · 1 sharedEllen LubmanGregory Mayes · 5 companies · 3 sharedGregory MayesArthur Rubinfeld · 4 companies · 1 sharedArthur RubinfeldGregory Wesner · 2 companies · 1 sharedGregory WesnerTraci Carman · 2 companies · 1 sharedTraci CarmanAndrea Leone-Bay · 1 companies · 1 sharedAndrea Leone-BayGreg Wesner · 1 companies · 1 sharedGreg WesnerWarren Lammert · 3 companies · 2 sharedWarren LammertHeath Lukatch · 10 companies · 1 sharedHeath LukatchGerry Brunk · 5 companies · 1 sharedGerry BrunkStephen Collins · 5 companies · 1 sharedStephen CollinsOrrin Devinsky · 3 companies · 1 sharedOrrin DevinskyGerry D. Brunk · 2 companies · 1 sharedGerry D. BrunkStephen D. Collins · 2 companies · 1 sharedStephen D. CollinsHeath D. Lukatch · 1 companies · 1 sharedHeath D. LukatchReunion Neuroscience, Inc. · $119.8M raisedReunion Neuroscience,…Receptor Holdings, Inc. · $36.2M raisedReceptor Holdings, In…Engage Therapeutics, Inc. · $30.6M raisedEngage Therapeutics, …Mark TheeuwesMT
Mark Theeuwes Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Gregory Mayes35
Warren Lammert23
Heath Lukatch110
Briggs Morrison18
Ansbert Gadicke17
Alon Lazarus17
Robert Alexander16
Michael Ehlers16
Gerry Brunk15
Stephen Collins15
Edward Smith15
Arthur Rubinfeld14
Nathan Bryson13
Orrin Devinsky13
Gregory Wesner12
Stephen D. Collins12
Traci Carman12
Gerry D. Brunk12
Ellen Lubman12
Natalie Sacks11

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.