David Dieter
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David Dieter Email & Phone Number

Executive Vice President and General Counsel at Collegium Pharmaceutical, Inc.
Location: Naperville, Illinois, United States 7 work roles 2 schools
1 work email found @horizontherapeutics.com 2 phones found area 847 and 888 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 86%

Contact Signals · 1 work email · 2 phones

Work email d****@horizontherapeutics.com
Direct phone (847) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Role
Executive Vice President and General Counsel
Location
Naperville, Illinois, United States

Who is David Dieter? Overview

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Quick answer

David Dieter is listed as Executive Vice President and General Counsel at Collegium Pharmaceutical, Inc., based in Naperville, Illinois, United States. AeroLeads shows a work email signal at horizontherapeutics.com, phone signal with area code 847, 888, and a matched LinkedIn profile for David Dieter.

David Dieter previously worked as Vice President, Legal at Horizon and Associate General Counsel at Horizon. David Dieter holds Bachelor Of Arts - Ba, Economics from University Of Tennessee, Knoxville.

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Email format at Collegium Pharmaceutical, Inc.

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{first_initial}{last}@horizontherapeutics.com
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Profile bio

About David Dieter

Accomplished business lawyer with in-house and law firm experience. Legal skills complimented by business leadership experience. Demonstrated ability to use a collaborative and strategic approach to deliver effective solutions in a complex and regulated environment and to lead, develop and mentor high performing teams. Specializations:Market Access, Product Distribution, Licensing, Mergers and Acquisitions, Debt and Equity Financings, Governance and Compliance, International Expansion, Government Affairs, Change Managementdavid.l.dieter@gmail.com

Current workplace

David Dieter's current company

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Collegium Pharmaceutical, Inc.
Collegium Pharmaceutical, Inc.
Executive Vice President and General Counsel
Naperville, IL, US
AeroLeads page
7 roles · 37 years

David Dieter work experience

A career timeline built from the work history available for this profile.

Vice President, Legal

Greater Chicago Area

Amgen acquired Horizon Therapeutics, October 2023.Managed a geographically dispersed twelve-person team of legal and contracting professionals that was responsible for commercial and clinical contract review, international expansion and special contracting projects. Advised leadership and multiple business functions on corporate and commercial matters relating to market access, distribution, supply chain, international expansion, marketing, IT, business development transactions and real estate. Managed outside counsel. Reported to General Counsel.• Supported product distribution and patient support functions by drafting and negotiating market access, patient support program and wholesale and specialty pharmacy distribution services agreements.• Supported IT and analytics functions in connection with drafting and negotiating relevant agreements.• Lead in-house attorney for international expansion, creating more than 15 entities in Europe, the Middle East, South America and Japan so that Horizon could register and commercialize its medicines outside the United States; led entity selection and formation activities, created local templates; provided general legal support for new entities.• Lead in-house attorney for Horizon’s acquisition of its US corporate headquarters in Illinois and a build-to-lease research and development facility in Maryland.• Advised on Canadian provincial product listing agreements to facilitate access to Horizon medicines in Canada.• Lead in-house attorney for Horizon’s disposition of ex-US rights for two of its medicines.• Served as lead in-house transactional attorney in connection with Horizon’s acquisition, and subsequent disposition, of ex-US rights for another medicine.• Lead in-house attorney for Horizon’s corporate sports sponsorships, including the Chicago Cubs and the Horizon Irish Open.• Provided in-house legal support for various internal restructurings to achieve desired IP ownership and entity structure efficiencies.

Oct 2021 - Feb 2024

Associate General Counsel

Greater Chicago Area

2017 - Oct 2021

Vice President, Government And External Affairs

Greater Chicago Area

Developed and implemented bipartisan federal and state legislative, public policy and advocacy activation strategies supporting Takeda and industry objectives.Collaborated with alliance partners and advocacy organizations to define and raise awareness of objectives.

2011 - 2016 ~5 yrs

Associate General Counsel – Commercial Law

Deerfield, Illinois

Managed in-house team of seven legal professionals plus outside counsel. Advised leadership and multiple business functions on commercial matters relating to product access, distribution, marketing, IT and sales operations. Also supported business development transactions.

2005 - 2011 ~6 yrs

Partner, Business Group

Greater Chicago Area

Represented early-stage and established mid-market companies in mergers and acquisitions, secured and unsecured loan transactions and equity financings.

1999 - 2005 ~6 yrs

Associate – Corporate And Securities And Secured Lending Groups

Greater Seattle Area

Advised on a broad range of corporate finance, mergers and acquisitions and asset backed lending transactions. Seconded for six months to The Long-Term Credit Bank of Japan, Tokyo, Japan to serve as Corporate Counselor for a Secured Lending Group.

1990 - 1995 ~5 yrs
2 education records

David Dieter education

FAQ

Frequently asked questions about David Dieter

Quick answers generated from the profile data available on this page.

What company does David Dieter work for?

David Dieter works for Collegium Pharmaceutical, Inc..

What is David Dieter's role at Collegium Pharmaceutical, Inc.?

David Dieter is listed as Executive Vice President and General Counsel at Collegium Pharmaceutical, Inc..

What is David Dieter's email address?

AeroLeads has found 1 work email signal at @horizontherapeutics.com for David Dieter at Collegium Pharmaceutical, Inc..

What is David Dieter's phone number?

AeroLeads has found 2 phone signal(s) with area code 847, 888 for David Dieter at Collegium Pharmaceutical, Inc..

Where is David Dieter based?

David Dieter is based in Naperville, Illinois, United States while working with Collegium Pharmaceutical, Inc..

What companies has David Dieter worked for?

David Dieter has worked for Collegium Pharmaceutical, Inc., Horizon, Takeda Pharmaceuticals, Freeborn & Peters Llp, and Perkins Coie.

How can I contact David Dieter?

You can use AeroLeads to view verified contact signals for David Dieter at Collegium Pharmaceutical, Inc., including work email, phone, and LinkedIn data when available.

What schools did David Dieter attend?

David Dieter holds Bachelor Of Arts - Ba, Economics from University Of Tennessee, Knoxville.

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