People · Operator

Jeffrey Aronin

Named in public records as an officer, director or promoter · active 2016–2025 · Biotechnology, Pharmaceuticals

6
Companies
14
Filings
$1.6B
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Castle Creek Biosciences, Inc.BiotechnologyGrowth/Late$839.8M$804.2M2018
Paragon Biosciences Emalex Capital, Inc.PharmaceuticalsSeries D+$376.8M$5.5B2018
Harmony Biosciences II, Inc.PharmaceuticalsSeries D+$345.0M$1.8B2017
Castle Creek Pharmaceuticals, LLCPharmaceuticalsSeries C$48.0M$1.7B2016
CIRC Biosciences, Inc.BiotechnologySeries B$24.1M$54.6M2024
Paragon Biosciences Skyline Capital, LLCPharmaceuticalsSeed$4.0M$150.9M2018
Operator network

Jeffrey Aronin 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.

Timothy Cunniff · 5 companies · 5 sharedTimothy CunniffJeffrey S. Aronin · 4 companies · 2 sharedJeffrey S. AroninTimothy M. Cunniff · 2 companies · 2 sharedTimothy M. CunniffW. Bradford Middlekauff · 2 companies · 1 sharedW. Bradford Middl…Babar J. Ghias · 1 companies · 1 sharedBabar J. GhiasDavid Brill · 1 companies · 1 sharedDavid BrillPatrick J. Morris · 8 companies · 3 sharedPatrick J. MorrisAntonio J. Gracias · 7 companies · 3 sharedAntonio J. GraciasRicky J. Sun · 2 companies · 1 sharedRicky J. SunDarien Parhad · 4 companies · 4 sharedDarien ParhadPatrick Morris · 6 companies · 6 sharedPatrick MorrisMichael Derby · 5 companies · 2 sharedMichael DerbyJack Nielsen · 13 companies · 1 sharedJack NielsenAaron Royston · 7 companies · 1 sharedAaron RoystonMartin Edwards · 5 companies · 1 sharedMartin EdwardsJuan Sabater · 4 companies · 1 sharedJuan SabaterJOHN JACOBS · 3 companies · 1 sharedJOHN JACOBSAARON BECH ROYSTON · 1 companies · 1 sharedAARON BECH ROYSTONANDREW SERAFIN · 1 companies · 1 sharedANDREW SERAFINAntonio Gracias · 15 companies · 5 sharedAntonio GraciasDarien J. Parhad · 7 companies · 2 sharedDarien J. ParhadGreg Licholai · 2 companies · 1 sharedGreg LicholaiCastle Creek Biosciences, Inc. · $839.8M raisedCastle Creek Bioscien…Paragon Biosciences Emalex Capital, Inc. · $376.8M raisedParagon Biosciences E…Harmony Biosciences II, Inc. · $345.0M raisedHarmony Biosciences I…Castle Creek Pharmaceuticals, LLC · $48.0M raisedCastle Creek Pharmace…CIRC Biosciences, Inc. · $24.1M raisedCIRC Biosciences, Inc.Paragon Biosciences Skyline Capital, LLC · $4.0M raisedParagon Biosciences S…Jeffrey AroninJA
Jeffrey Aronin Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Patrick Morris66
Antonio Gracias515
Timothy Cunniff55
Darien Parhad44
Patrick J. Morris38
Antonio J. Gracias37
Darien J. Parhad27
Michael Derby25
Jeffrey S. Aronin24
Timothy M. Cunniff22
Jack Nielsen113
Aaron Royston17
Martin Edwards15
Juan Sabater14
JOHN JACOBS13
Ricky J. Sun12
W. Bradford Middlekauff12
Greg Licholai12
Jeffrey J. Dayno11
Jude Sullivan11

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.