Matthew Ronsheim

Active Waltham, MA — President for La Jolla Pharmaceutical Company

Matthew Ronsheim Overview

Matthew Ronsheim is currently associated with two companies, according to public records. The companies were formed over a eight year period with the most recent being incorporated three years ago in January of 2023. All companies are still active.

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Name	Status	Incorporated	Key People	Role
Tetraphase Pharmaceuticals, Inc.	Active	2014	15	President
La Jolla Pharmaceutical Company	Active	1989	9	President

Connections for Matthew Ronsheim

A connection is made when two people are officers, directors, or otherwise associated with the same company. Matthew has nineteen known connections and has the most companies in common with Larry Edwards.

Larry Edwards

Larry Edwards has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Inactive	1989	9	President
T------------------------------.	Active	2014	15	Director

Craig Johnson

Craig Johnson has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Inactive	1989	9	Director
T------------------------------.	Inactive	2014	15	Director

Robert Rosen

Robert Rosen has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Inactive	1989	9	Director
T------------------------------.	Inactive	2014	15	Director

Steven Ferris

Steven Ferris has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Active	2014	15	Vp

Bonnie Gaudette

Bonnie Gaudette has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Active	1989	9	Director

Tony Hodges

Tony Hodges has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Active	2014	15	Cmo

Stew Kroll

Stew Kroll has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Active	2014	15	Cdo

Paula Rusu

Paula Rusu has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Active	2014	15	Vp

Luke Seikkula

Luke Seikkula has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Active	2014	15	Senior Vp

Garen Bohlin

Garen Bohlin has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Inactive	2014	15	Director

Laura Douglass

Laura Douglass has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Inactive	1989	9	Director

L. Patrick Gage

L. Patrick Gage has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Inactive	2014	15	Director

Deirdre Yvonne Gillespie

Deirdre Yvonne Gillespie has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Inactive	1989	9	President

Guy Macdonald

Guy Macdonald has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Inactive	2014	15	President

James Rolke

James Rolke has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Inactive	1989	9

Maria Stahl

Maria Stahl has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Inactive	2014	15	Secretary

George F. Tidmarsh

George F. Tidmarsh has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
L-----------------------------y	Inactive	1989	9	President

Christopher Watt

Christopher Watt has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Inactive	2014	15	Treasurer

Nancy Wysenski

Nancy Wysenski has the following companies in common with Matthew Ronsheim

Name	Status	Incorporated	Key People	Role
T------------------------------.	Inactive	2014	15	Director

Source

Florida Department of State
Data last refreshed on Monday, April 6, 2026

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Matthew Ronsheim

Active Waltham, MA — President for La Jolla Pharmaceutical Company