Daniel J. O'Connor in

Daniel J. O'Connor

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Chief Executive Officer at Jubilant Therapeutics Inc
📍 Pennington, New Jersey, United States

Daniel J. O’Connor is a 25+ year biotech executive specializing in oncology drug development and corporate turnarounds. As CEO of companies like Jubilant Therapeutics and Ambrx, he has a record of scaling clinical-stage enterprises, highlighted by the $2 billion acquisition of Ambrx under his leadership. He holds a J. D. from Penn State Dickinson Law.

Outside of his corporate roles, Daniel is a U. S. Marine Corps veteran who served as a Captain during Operation Desert Shield. A second-generation Irish American, he values home and family, is married with three sons, and mentions enjoying a cold beer at the end of the day.

Unique fact: Before his career in biotech, he served as a criminal prosecutor in Somerset County, New Jersey.

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Experience
10 Years
Current Role
Chief Executive Officer
Job Level
Leadership
Location
Pennington, New Jersey, United States
Personality Overview

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Decision Approach
Work Preference

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Priorities

Topics Daniel cares about

Biotech Turnarounds
He has a reputation for transforming underperforming biotechs, taking Ambrx from a $40M valuation to a $2B acquisition and bringing Advaxis back from near-bankruptcy.
Oncology Drug Development
His entire career is focused on oncology, from his early involvement with Erbitux at ImClone to leading multiple clinical-stage cancer therapy companies.
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Career

Work history

12-2025
Chief Executive Officer
Jubilant Therapeutics Inc
11-2022 - 3-2024
Chief Executive Officer and Director
Ambrx
6-2021 - 12-2022
Co-Founder, CEO and Director
Larkspur Health Acquisition Corp.
9-2017 - 6-2021
President, CEO and Director
OncoSec
1-2013 - 7-2017
President, CEO and Director
Advaxis, Inc.
In the press

Media appearances

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Education
1992 - 1995
Doctor of Law (JD)
Penn State Dickinson Law
1984 - 1987
Bachelor of Arts (B.A.)
Boston University
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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