People · Operator

Sean O'Sullivan

Named in public records as an officer, director or promoter · active 2022–2022 · Biotech / Pharma

1
Companies
1
Filings
$47.3M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Prellis Biologics, IncBiotech / PharmaSeries B$47.3M$277.2M2022
Operator network

Sean O'Sullivan 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.

Michael Marks · 20 companies · 1 sharedMichael MarksAlex Morgan · 10 companies · 1 sharedAlex MorganRohit Sharma · 10 companies · 1 sharedRohit SharmaArvind Gupta · 3 companies · 1 sharedArvind GuptaShaun Holt · 2 companies · 1 sharedShaun HoltLei Meng · 1 companies · 1 sharedLei MengMelanie Matheu · 1 companies · 1 sharedMelanie MatheuNoelle Mullin · 1 companies · 1 sharedNoelle MullinPrellis Biologics, Inc · $47.3M raisedPrellis Biologics, IncSean O'SullivanSO
Sean O'Sullivan Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Michael Marks120
Alex Morgan110
Rohit Sharma110
Arvind Gupta13
Shaun Holt12
Noelle Mullin11
Melanie Matheu11
Lei Meng11

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.