People · Operator

Michael Heffernan

Named in public records as an officer, director or promoter · active 2010–2025 · Pharmaceuticals, Biotechnology, Other, Other Technology

5
Companies
11
Filings
$959.7M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Par Health, Inc.PharmaceuticalsGrowth/Late$763.0M$6.8B2025
Collegium Pharmaceutical, IncPharmaceuticalsSeries C$97.5M$701.8M2010
CARISMA Therapeutics Inc.BiotechnologySeries C$95.0M$1.3B2020
Genome ID Group, LLCOtherSeed$4.0M$20.4M2013
eMind Science CorpOther TechnologyPre-Seed$200K$8.5M2016
Operator network

Michael Heffernan 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.

Jack Boyle · 2 companies · 1 sharedJack BoyleMatthew Maletta · 2 companies · 1 sharedMatthew MalettaDavid Hirsch · 16 companies · 1 sharedDavid HirschPatrick Heron · 11 companies · 1 sharedPatrick HeronJohn Freund · 7 companies · 1 sharedJohn FreundStephen Hoffman · 7 companies · 1 sharedStephen HoffmanGino Santini · 5 companies · 1 sharedGino SantiniPaul Brannelly · 4 companies · 1 sharedPaul BrannellyGino W. Santini · 3 companies · 1 sharedGino W. SantiniPatrick N. Heron · 3 companies · 1 sharedPatrick N. HeronSteven N. Tannenbaum · 3 companies · 1 sharedSteven N. Tannenb…Garen Bohlin · 2 companies · 1 sharedGaren BohlinPatrick Fortune · 2 companies · 1 sharedPatrick FortuneEran Nadav · 4 companies · 2 sharedEran NadavBriggs Morrison · 8 companies · 1 sharedBriggs MorrisonBruce Peacock · 5 companies · 1 sharedBruce PeacockMargarita Chavez · 4 companies · 1 sharedMargarita ChavezMichael Poisel · 4 companies · 1 sharedMichael PoiselSteven Kelly · 4 companies · 1 sharedSteven KellyChidozie Ugwumba · 3 companies · 1 sharedChidozie UgwumbaAlthea Stillman · 2 companies · 1 sharedAlthea StillmanDonald A. Holzworth · 5 companies · 1 sharedDonald A. Holzwor…Par Health, Inc. · $763.0M raisedPar Health, Inc.Collegium Pharmaceutical, Inc · $97.5M raisedCollegium Pharmaceuti…CARISMA Therapeutics Inc. · $95.0M raisedCARISMA Therapeutics …Genome ID Group, LLC · $4.0M raisedGenome ID Group, LLCeMind Science Corp · $0.2M raisedeMind Science CorpMichael HeffernanMH
Michael Heffernan Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Eran Nadav24
David Hirsch116
Patrick Heron111
Briggs Morrison18
John Freund17
Stephen Hoffman17
Bruce Peacock15
Gino Santini15
Donald A. Holzworth15
Steven Kelly14
Paul Brannelly14
Michael Poisel14
Margarita Chavez14
Patrick N. Heron13
Gino W. Santini13
Steven N. Tannenbaum13
Chidozie Ugwumba13
Stephen W. Hoffman12
Patrick Fortune12
Regina Hodits12

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.