People · Operator

R. John Fletcher

Named in public records as an officer, director or promoter · active 2011–2025 · Other Health Care, Pharmaceuticals

4
Companies
10
Filings
$403.3M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Metabolon, IncOther Health CareSeries B$123.6M$42.1M2019
OptiNose, Inc.PharmaceuticalsSeries B$120.4M$34.7M2024
Mri Interventions, Inc.Other Health CareSeries B$90.0M$76.6M2017
Marina Biotech, Inc.PharmaceuticalsSeries C$69.2M$113.7M2011
Operator network

R. John Fletcher 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.

B. Jefferson Clark · 12 companies · 1 sharedB. Jefferson ClarkJohn Oxaal · 7 companies · 1 sharedJohn OxaalDavid Pierson · 5 companies · 1 sharedDavid PiersonEdward L. Erickson · 4 companies · 1 sharedEdward L. EricksonR. Scott Barry · 3 companies · 1 sharedR. Scott BarryWilliam F. Doyle · 8 companies · 1 sharedWilliam F. DoylePeter Miller · 7 companies · 1 sharedPeter MillerSriram Venkataraman · 6 companies · 1 sharedSriram Venkataram…KEITH A. GOLDAN · 3 companies · 1 sharedKEITH A. GOLDANKlaas De Boer · 3 companies · 1 sharedKlaas De BoerMICHAEL F. MARINO · 3 companies · 1 sharedMICHAEL F. MARINOB. KRISTINE JOHNSON · 5 companies · 1 sharedB. KRISTINE JOHNS…Parker H. Petit · 5 companies · 1 sharedParker H. PetitCharles E. Koob · 3 companies · 1 sharedCharles E. KoobPascal E.R. Girin · 3 companies · 1 sharedPascal E.R. GirinAndrew K Rooke · 2 companies · 1 sharedAndrew K RookeBruce C. Conway · 2 companies · 1 sharedBruce C. ConwayVuong Trieu · 5 companies · 1 sharedVuong TrieuIsaac A. Blech · 3 companies · 1 sharedIsaac A. BlechPeter D. Parker · 3 companies · 1 sharedPeter D. ParkerTim Boris · 3 companies · 1 sharedTim BorisULI HACKSELL · 3 companies · 1 sharedULI HACKSELLMetabolon, Inc · $123.6M raisedMetabolon, IncOptiNose, Inc. · $120.4M raisedOptiNose, Inc.Mri Interventions, Inc. · $90.0M raisedMri Interventions, In…Marina Biotech, Inc. · $69.2M raisedMarina Biotech, Inc.R. John FletcherRF
R. John Fletcher Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
B. Jefferson Clark112
William F. Doyle18
John Oxaal17
Peter Miller17
Sriram Venkataraman16
Parker H. Petit15
David Pierson15
B. KRISTINE JOHNSON15
Vuong Trieu15
Edward L. Erickson14
Tim Boris13
Klaas De Boer13
R. Scott Barry13
Pascal E.R. Girin13
Peter D. Parker13
MICHAEL F. MARINO13
Isaac A. Blech13
Charles E. Koob13
ULI HACKSELL13
KEITH A. GOLDAN13

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.