![Geoffrey Kempler](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Geoffrey Kempler
Chief Executive Officer at
HEXIMA LIMITED
Net worth: 137 655 $ as of 2026-07-30
Profile
Geoffrey Paul Kempler was the founder of Alterity Therapeutics Ltd., founded in 1997, where the title held was Non-Executive Chairman from 2021 to 2025.
Mr. Kempler is currently Chairman & Managing Director at Hexima Ltd. since 2023.
Former positions include Chairman at Opthea Ltd. from 2015 to 2020 and Chairman at AusBiotech Ltd. from 2021 to 2023.
Education includes undergraduate studies at Monash University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-11-20 | 359,620 ( 0.17% ) | 137 655 $ | 2026-07-30 |
Geoffrey Kempler active positions
| Companies | Position | Start |
|---|---|---|
| HEXIMA LIMITED | Chief Executive Officer | 2023-09-04 |
Former positions of Geoffrey Kempler
| Companies | Position | End |
|---|---|---|
| ALTERITY THERAPEUTICS LIMITED | Chief Executive Officer | 2021-01-06 |
AusBiotech Ltd.
 AusBiotech Ltd. Miscellaneous Commercial ServicesCommercial Services Operates as a biotechnology membership company | Chairman | 2023-10-31 |
| CERYVYN THERAPEUTICS LIMITED | Chairman | 2020-10-11 |
Training of Geoffrey Kempler
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
34
1st degree connections
5
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 5 |
|---|---|
Hexima Ltd.
 Hexima Ltd. BiotechnologyHealth Technology Engages in research and development of plant-derived proteins for treatment of fungal nail infections and provides commercial property services | Health Technology |
Opthea Ltd.
 Opthea Ltd. BiotechnologyHealth Technology Operates as a biotechnology company that develops novel therapies for treatment retinal diseases | Health Technology |
Alterity Therapeutics Ltd.
 Alterity Therapeutics Ltd. Pharmaceuticals: MajorHealth Technology Develops therapeutic drugs | Health Technology |
Monash University
 Monash University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
AusBiotech Ltd.
AusBiotech Ltd. Miscellaneous Commercial ServicesCommercial Services Operates as a biotechnology membership company | Commercial Services |
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