People · Operator

BRIAN O'CALLAGHAN

Named in public records as an officer, director or promoter · active 2010–2011 · Biotechnology

1
Companies
3
Filings
$165.9M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Sangart IncBiotechnologySeries D+$165.9M$4.2B2010
Operator network

BRIAN O'CALLAGHAN 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.

Joseph Steinberg · 3 companies · 1 sharedJoseph SteinbergDAVID RENAS · 1 companies · 1 sharedDAVID RENASIan Cumming · 1 companies · 1 sharedIan CummingJohn Eyring · 1 companies · 1 sharedJohn EyringJUSTIN WHEELER · 1 companies · 1 sharedJUSTIN WHEELERSangart Inc · $165.9M raisedSangart IncBRIAN O'CALLAGHANBO
BRIAN O'CALLAGHAN Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Joseph Steinberg13
JUSTIN WHEELER11
John Eyring11
Ian Cumming11
DAVID RENAS11

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.