People · Operator

Johanna Holldack

Named in public records as an officer, director or promoter · active 2016–2017 · Biotechnology

1
Companies
3
Filings
$35.1M
Combined raised · real
Single
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Trethera CorpBiotechnologySeries A$35.1M$881K2016
Operator network

Johanna Holldack 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.

Carl W. McKinzie · 2 companies · 1 sharedCarl W. McKinzieJohannes Czernin · 2 companies · 1 sharedJohannes CzerninCaius B. Radu · 1 companies · 1 sharedCaius B. RaduCaius L. Radu · 1 companies · 1 sharedCaius L. RaduCarl McKinzie · 1 companies · 1 sharedCarl McKinzieJean B. deKernion · 1 companies · 1 sharedJean B. deKernionJean L. deKernion · 1 companies · 1 sharedJean L. deKernionJohannes L. Czernin · 1 companies · 1 sharedJohannes L. Czern…John W. Stretton · 1 companies · 1 sharedJohn W. StrettonKenneth A. Schultz, M.D. · 1 companies · 1 sharedKenneth A. Schult…Laurent Boyd Dubois · 1 companies · 1 sharedLaurent Boyd Dubo…Louis L. Gonda · 1 companies · 1 sharedLouis L. GondaLynne W. Rollins · 1 companies · 1 sharedLynne W. RollinsNathan W. Mata · 1 companies · 1 sharedNathan W. MataOwen L. Witte, M.D. · 1 companies · 1 sharedOwen L. Witte, M.…R. Boyd Quinnell · 1 companies · 1 sharedR. Boyd QuinnellTimothy B. Donahue, M.D. · 1 companies · 1 sharedTimothy B. Donahu…Timothy Donahue, M.D. · 1 companies · 1 sharedTimothy Donahue, …Timothy L. Donahue, M.D. · 1 companies · 1 sharedTimothy L. Donahu…Trethera Corp · $35.1M raisedTrethera CorpJohanna HolldackJH
Johanna Holldack Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
Carl W. McKinzie12
Johannes Czernin12
John W. Stretton11
Louis L. Gonda11
Caius B. Radu11
Nathan W. Mata11
Jean B. deKernion11
Carl McKinzie11
Johannes L. Czernin11
Jean L. deKernion11
Caius L. Radu11
Kenneth A. Schultz, M.D.11
Laurent Boyd Dubois11
Timothy Donahue, M.D.11
R. Boyd Quinnell11
Timothy B. Donahue, M.D.11
Timothy L. Donahue, M.D.11
Lynne W. Rollins11
Owen L. Witte, M.D.11

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.