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Daniel O'Connor
Director/Board Member at
DIAMEDICA THERAPEUTICS INC.
Net worth: - $ as of 2026-05-30
Profile
Daniel J.
O'Connor is the founder of Larkspur Health Acquisition Corp., founded in 2021, where the title held was Chairman & Chief Executive Officer.
Mr. O'Connor was the founder of Ambrx Biopharma Cayman, Inc., founded in 2022, where the titles held were President, Chief Executive Officer & Director.
Mr. O'Connor is also the founder of Larkspur Health LLC..
Mr. O'Connor is Chief Executive Officer at Jubilant Therapeutics, Inc. Mr. O'Connor is Independent Director at DiaMedica Therapeutics, Inc. Mr. O'Connor was Chief Executive Officer at inVentiv Health Clinical, Inc. Mr. O'Connor was President, Chief Executive Officer & Director at OncoSec Medical, Inc. from 2018 to 2021.
Mr. O'Connor was President, Chief Executive Officer & Director at Advaxis, Inc. from 2013 to 2017.
Mr. O'Connor was President, Chief Executive Officer & Director at Ambrx, Inc. from 2022 to 2024.
Mr. O'Connor was Director at Apricus Biosciences, Inc. Mr. O'Connor was Director at ZyVersa Therapeutics Operating, Inc. Mr. O'Connor was Independent Director at ZyVersa Therapeutics, Inc. from 2022 to 2023.
Mr. O'Connor was Director at Seelos Therapeutics, Inc. from 2019 to 2024.
Mr. O'Connor was Secretary, Senior Vice President & General Counsel at ImClone LLC from 2002 to 2008.
Mr. O'Connor was Principal at Celanese Corp.
Mr. O'Connor was General Counsel at PharmaNet, Inc. from 1998 to 2001.
Mr. O'Connor was Chief Compliance Officer at NPS Pharmaceuticals, Inc. Mr. O'Connor was Captain at United States Marine Corps.
Mr. O'Connor was Senior Vice President & General Counsel at Bracco Diagnostics, Inc. from 2008 to 2012.
Mr. O'Connor was Trustee at BioNJ, Inc. from 2015 to 2021.
Mr. O'Connor was General Counsel at Syneos Health, Inc. from 1998 to 2001.
Mr. O'Connor graduated from Dickinson Law School in 1995.
Mr. O'Connor graduated from Usmc Officer Candidates School in 1998.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-31 | 0 ( -.--% ) | - $ | 2026-05-30 |
Daniel O'Connor active positions
| Companies | Position | Start |
|---|---|---|
| DIAMEDICA THERAPEUTICS INC. | Director/Board Member | 2025-02-19 |
Jubilant Therapeutics, Inc.
 Jubilant Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Develops therapeutics for oncology and autoimmune diseases | Chief Executive Officer | - |
Former positions of Daniel O'Connor
| Companies | Position | End |
|---|---|---|
| SEELOS THERAPEUTICS, INC. | Director/Board Member | 2024-05-01 |
Ambrx Biopharma, Inc.
 Ambrx Biopharma, Inc. BiotechnologyHealth Technology Operates as a clinical-stage biologics company | Founder | 2024-03-06 |
| AMBRX INC | Chief Executive Officer | 2024-02-29 |
| ZYVERSA THERAPEUTICS, INC. | Director/Board Member | 2023-05-17 |
| ONCOSEC MEDICAL INCORPORATED | Chief Executive Officer | 2021-06-23 |
Training of Daniel O'Connor
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
54
1st degree connections
24
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 24 |
|---|---|
ImClone LLC
 ImClone LLC BiotechnologyHealth Technology Develops novel therapeutic products and blood cell growth factors for the treatment of cancer | Health Technology |
NPS Pharmaceuticals, Inc.
 NPS Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops drugs for bone and mineral disorders | Health Technology |
Apricus Biosciences, Inc.
 Apricus Biosciences, Inc. Pharmaceuticals: MajorHealth Technology Designs, develops and commercialises therapeutic products | Health Technology |
inVentiv Health Clinical, Inc.
 inVentiv Health Clinical, Inc. Miscellaneous Commercial ServicesCommercial Services Provides clinical research and drug development services | Commercial Services |
Celanese Corp.
 Celanese Corp. Chemicals: SpecialtyProcess Industries Produces acetyl products and engineered polymers | Process Industries |
DiaMedica Therapeutics, Inc.
 DiaMedica Therapeutics, Inc. BiotechnologyHealth Technology Operates as a biopharmaceutical company that engages in development and commercialization of therapeutic treatments from novel recombinant proteins | Health Technology |
OncoSec Medical, Inc.
 OncoSec Medical, Inc. BiotechnologyHealth Technology Engages in discovery and development of novel immunotherapeutic products for immuno-oncology treatment | Health Technology |
ZyVersa Therapeutics Operating, Inc.
 ZyVersa Therapeutics Operating, Inc. Pharmaceuticals: MajorHealth Technology Manufactures and distributes pharmaceutical products | Health Technology |
Boston University
 Boston University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
PharmaNet, Inc.
 PharmaNet, Inc. Medical DistributorsDistribution Services Researches and develops new drugs and provides clinical development & consulting services | Distribution Services |
Advaxis, Inc.
 Advaxis, Inc. Pharmaceuticals: MajorHealth Technology Develops immunotherapies for cancer and infectious diseases | Health Technology |
Ambrx, Inc.
 Ambrx, Inc. BiotechnologyHealth Technology Operates as a clinical stage biopharmaceutical company | Health Technology |
United States Marine Corps
 United States Marine Corps SovereignGovernment Provides marine armed force services | Government |
Bracco Diagnostics, Inc.
 Bracco Diagnostics, Inc. Pharmaceuticals: MajorHealth Technology Manufactures chemicals and allied products | Health Technology |
BioNJ, Inc.
 BioNJ, Inc. Miscellaneous Commercial ServicesCommercial Services Promotes the biotechnology industry in New Jersey | Commercial Services |
Dickinson Law School
 Dickinson Law School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Syneos Health, Inc.
 Syneos Health, Inc. BiotechnologyHealth Technology Provides outsourced clinical development and commercialization services to biopharmaceutical companies | Health Technology |
Seelos Therapeutics, Inc.
 Seelos Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Develops therapies for neurological disorders and rare diseases using pipeline targeting CNS conditions | Health Technology |
Jubilant Therapeutics, Inc.
Jubilant Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Develops therapeutics for oncology and autoimmune diseases | Health Technology |
Ambrx Biopharma, Inc.
Ambrx Biopharma, Inc. BiotechnologyHealth Technology Operates as a clinical-stage biologics company | Health Technology |
Larkspur Health Acquisition Corp.
 Larkspur Health Acquisition Corp. Financial ConglomeratesFinance Operates as a blank check company | Finance |
Larkspur Health LLC | |
ZyVersa Therapeutics, Inc.
 ZyVersa Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Operates as a clinical stage biopharmaceutical company that develops product candidates in the areas of renal and inflammatory diseases | Health Technology |
Usmc Officer Candidates School
 Usmc Officer Candidates School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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