People · Operator

Jonathan Bruce Leff

Named in public records as an officer, director or promoter · active 2020–2020 · Biotechnology

1
Companies
1
Filings
$244.0M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Avalyn Pharma Inc.BiotechnologySeries D+$244.0M$2.7B2020
Operator network

Jonathan Bruce Leff 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.

Jonathan Leff · 11 companies · 1 sharedJonathan LeffKetan Patel · 10 companies · 1 sharedKetan PatelTiba Aynechi · 9 companies · 1 sharedTiba AynechiNiall O'Donnell · 7 companies · 1 sharedNiall O'DonnellPeter Moldt · 6 companies · 1 sharedPeter MoldtA. Bruce Montgomery · 3 companies · 1 sharedA. Bruce Montgome…Daniel D. Burgess · 3 companies · 1 sharedDaniel D. BurgessMichael J. Kamdar · 3 companies · 1 sharedMichael J. KamdarRichard G Vincent · 3 companies · 1 sharedRichard G VincentCassandra Gianna Luca · 2 companies · 1 sharedCassandra Gianna …Heather Bruce Preston · 2 companies · 1 sharedHeather Bruce Pre…Ketan W. Patel · 2 companies · 1 sharedKetan W. PatelBruce G. Montgomery, M.D. · 1 companies · 1 sharedBruce G. Montgome…Bruce W. Montgomery, M.D. · 1 companies · 1 sharedBruce W. Montgome…Heather W. Preston · 1 companies · 1 sharedHeather W. PrestonJill Gianna Carroll · 1 companies · 1 sharedJill Gianna Carro…Jonathan G. Leff, M.D. · 1 companies · 1 sharedJonathan G. Leff,…Jonathan W. Leff, M.D. · 1 companies · 1 sharedJonathan W. Leff,…Ketan Bruce Patel · 1 companies · 1 sharedKetan Bruce PatelKetan G. Patel · 1 companies · 1 sharedKetan G. PatelLyn Baranowski · 1 companies · 1 sharedLyn BaranowskiMark W. Surber, Ph.D. · 1 companies · 1 sharedMark W. Surber, P…Avalyn Pharma Inc. · $244.0M raisedAvalyn Pharma Inc.Jonathan Bruce LeffJL
Jonathan Bruce Leff Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Jonathan Leff111
Ketan Patel110
Tiba Aynechi19
Niall O'Donnell17
Peter Moldt16
Richard G Vincent13
Daniel D. Burgess13
Michael J. Kamdar13
A. Bruce Montgomery13
Heather Bruce Preston12
Cassandra Gianna Luca12
Ketan W. Patel12
Heather W. Preston11
Niall W. O'Donnell11
Tiba W. Aynechi11
Naveed G. Siddiqi11
Bruce G. Montgomery, M.D.11
Tiba G. Aynechi11
Jonathan G. Leff, M.D.11
Ketan G. Patel11

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.