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Jeffrey Aronin

Director at Paragon Biosciences Emalex Capital. Also a director at Castle Creek Biosciences and CIRC Biosciences and a chairman and director at Evozyne.

ExecutiveDirectorPublic companyRoles at 4 startups
Updated Nov 9, 2026·Latest SEC filing Jul 8, 2025·Suggest an edit

About Jeffrey Aronin

Jeffrey Aronin is a director at Paragon Biosciences Emalex Capital.

Form D filings also name Jeffrey Aronin as a director at Castle Creek Biosciences and CIRC Biosciences and a chairman and director at Evozyne.

Jeffrey Aronin reports to the SEC as a director of 2 public companies: Discover Financial Services (DFS) and Harmony Biosciences (HRMY).

Jeffrey Aronin first appears on SEC filings in 2007.

Experience

This experience comes from SEC filings. The years are when the filings name Jeffrey Aronin in the role, so the role may have started earlier or lasted longer.

Paragon Biosciences Emalex Capital, Inc.
Director
2018 – 2025 · Chicaco, IL
Castle Creek Biosciences, Inc.
Director
2018 – 2025 · Exton, PA
CIRC Biosciences, Inc.
Director
2020 – 2024 · Chicago, IL
Evozyne, Inc.
Chairman and Director
2020 – 2023 · Chicago, IL
Discover Financial Services
Director
2007 – 2023 · Public company (DFS)
Harmony Biosciences Holdings, Inc.
Director
2020 – 2022 · Public company (HRMY)

Key Colleagues at Startups

The people Jeffrey Aronin works with at each company, as listed on that company's latest Form D.

Paragon Biosciences Emalex Capital, Inc. · Form D/A, Jul 8, 2025
PM
Patrick Morris
Executive Vice President and Secretary
AG
EM
Eric Messner
Executive officer and director
RS
Ricky Sun
Director
JD
DP
Darien Parhad
Executive officer
Castle Creek Biosciences, Inc. · Form D, Feb 25, 2025
DB
David Brill
Director
MC
MG
Matthew Gantz
Executive officer and director
PM
JS
Jude Sullivan
General Counsel and Assistant Secretary
DP
Darien Parhad
Executive officer
AG
CIRC Biosciences, Inc. · Form D, Oct 7, 2024
DP
Darien Parhad
Executive officer
TC
PM
Patrick Morris
President, Secretary and General Counsel, director
SC
Sai Chavala
Director
AG
Evozyne, Inc. · Form D, Sep 29, 2023
AG
AT
Aris Theologis
Chief Business Officer
DP
Darien Parhad
Chief Financial Officer and Treasurer
JS
Jude Sullivan
General Counsel and Secretary
AL
Aleina Lee
Corporate Controller
RR
Rama Ranganathan
Chief Scientific Officer and Director
PM
Patrick Morris
Executive officer and director
MG
Mike Gamson
President, Chief Executive Officer, and Director
MR
AR
Arjun Rallapalli
Chief Operating Officer

Sources

  1. SECParagon Biosciences Emalex Capital, Inc. Form D/A, filed Jul 8, 2025
  2. SECCastle Creek Biosciences, Inc. Form D, filed Feb 25, 2025
  3. SECCIRC Biosciences, Inc. Form D, filed Oct 7, 2024
  4. SECEvozyne, Inc. Form D, filed Sep 29, 2023
  5. SECForms 3, 4 and 5 filed by Jeffrey Aronin (SEC filer 1062364)