People · Operator

John N. Spencer, Jr.

Named in public records as an officer, director or promoter · active 2010–2022 · Other Health Care, Biotechnology

2
Companies
18
Filings
$129.1M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
Mri Interventions, Inc.Other Health CareSeries B$90.0M$76.6M2010
GeoVax Labs, Inc.BiotechnologySeries A$39.1M$217.3M2020
Operator network

John N. Spencer, Jr. 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. KRISTINE JOHNSON · 5 companies · 1 sharedB. KRISTINE JOHNS…Parker H. Petit · 5 companies · 1 sharedParker H. PetitR. John Fletcher · 4 companies · 1 sharedR. John FletcherCharles 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. ConwayCharles L. Koob · 2 companies · 1 sharedCharles L. KoobFrancis P. Grillo · 2 companies · 1 sharedFrancis P. GrilloMatthew B. Klein · 2 companies · 1 sharedMatthew B. KleinCarol J. Barbre · 1 companies · 1 sharedCarol J. BarbreDanilo T. D'Alessandro · 1 companies · 1 sharedDanilo T. D'Aless…David W. Carlson · 1 companies · 1 sharedDavid W. CarlsonHarold A. Hurwitz · 1 companies · 1 sharedHarold A. HurwitzJohn Spencer · 3 companies · 1 sharedJohn SpencerDavid A. Dodd · 2 companies · 1 sharedDavid A. DoddDavid T Dodd · 1 companies · 1 sharedDavid T DoddDean G Kollintzas · 1 companies · 1 sharedDean G KollintzasDean Kollintzas · 1 companies · 1 sharedDean KollintzasDonald Hildebrand · 1 companies · 1 sharedDonald HildebrandFarshad D. Guirakhoo · 1 companies · 1 sharedFarshad D. Guirak…Farshad G. Guirakhoo · 1 companies · 1 sharedFarshad G. Guirak…Mri Interventions, Inc. · $90.0M raisedMri Interventions, In…GeoVax Labs, Inc. · $39.1M raisedGeoVax Labs, Inc.John N. Spencer, Jr.JJ
John N. Spencer, Jr. Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

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

OperatorSharedTheir companies
B. KRISTINE JOHNSON15
Parker H. Petit15
R. John Fletcher14
Pascal E.R. Girin13
John Spencer13
Charles E. Koob13
Andrew K Rooke12
Bruce C. Conway12
David A. Dodd12
Charles L. Koob12
Francis P. Grillo12
Matthew B. Klein12
Peter W. Piferi11
Peter L. Piferi11
Wendelin L. Maners11
Peter H. Piferi11
John L. Thomas11
Paul L. Bottomely11
David W. Carlson11
Paul L. Bottomley11

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.