![Tomas Kiselak](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>)
Tomas Kiselak
Président chez
VIRIDIAN THERAPEUTICS, INC.
Fortune : 34 M $ au 31/05/2026
Profil
Tomas Kiselak is the founder of Viridian LLC, founded in 2016, serving as Co-Manager.
Mr. Kiselak was also the founder of Viridian Therapeutics, Inc...
Current jobs included Independent Chairman at Viridian Therapeutics, Inc. since 2021, Independent Director at Spyre Therapeutics, Inc. since 2023, Independent Director at Apogee Therapeutics, Inc. since 2023, Independent Director at Jade Biosciences, Inc. since 2025, Director at Jade Biosciences, Inc. (United States) since 2024, and Managing Member at Fairmount Funds Management LLC.
Former jobs include Managing Director at RA Capital Management LP, Managing Director at RA Capital Management LP (Private Equity), Independent Director at Zenas BioPharma, Inc. from 2020 to 2026, Independent Director at Dianthus Therapeutics, Inc. from 2023 to 2025, and Laboratory Assistant at Harvard Medical School.
Education includes an undergraduate degree from Amherst College conferred in 2009.
Détentions connues dans des sociétés publiques
| Société | Date | Nombre d'actions | Valorisation | Date de valorisation |
|---|---|---|---|---|
SPYRE THERAPEUTICS, INC 0,47 % | 23/06/2026 | 406 038 ( 0,47 % ) | 30 M $ | 31/05/2026 |
| 18/06/2026 | 51 166 ( 0,09 % ) | 4 M $ | 31/05/2026 | |
-.--% | 12/03/2026 | 0 ( -.--% ) | - $ | 31/05/2026 |
| 31/03/2026 | 0 ( -.--% ) | - $ | 31/05/2026 |
Postes actifs de Tomas Kiselak
| Sociétés | Poste | Début |
|---|---|---|
| VIRIDIAN THERAPEUTICS, INC. | Président | 01/06/2021 |
| SPYRE THERAPEUTICS, INC. | Directeur/Membre du Conseil | 22/06/2023 |
| APOGEE THERAPEUTICS, INC. | Directeur/Membre du Conseil | 01/06/2023 |
| JADE BIOSCIENCES, INC. | Directeur/Membre du Conseil | 28/04/2025 |
Fairmount Funds Management LLC
 Fairmount Funds Management LLC Investment ManagersFinance Provides investment advice | Corporate Officer/Principal | - |
Viridian LLC
 Viridian LLC BiotechnologyHealth Technology Operates as a biopharmaceutical incubator company | Fondateur | 01/01/2016 |
Anciens postes connus de Tomas Kiselak
| Sociétés | Poste | Fin |
|---|---|---|
| DIANTHUS THERAPEUTICS, INC. | Directeur/Membre du Conseil | 04/03/2025 |
RA Capital Management LP (Private Equity)
 RA Capital Management LP (Private Equity) Investment ManagersFinance RA Capital invests in both public and private companies located in the United States. The firm targets companies operating in the fields of healthcare and life sciences. It provides financing for pre-seed, seed stage, early stage and growth capital requirements . The firm acts as a lead and co-investor, makes follow-on investments and has a board seat requirement. | Private Equity Investor | - |
Viridian Therapeutics, Inc. /Old/
 Viridian Therapeutics, Inc. /Old/ BiotechnologyHealth Technology Operates as a biotechnology company | Fondateur | - |
| ░░░░░░░ ░░░░░░░ ░░░░░░ | ░░░░░░░░░ ░░░░░░░░░░░░░░░░░ | - |
Formation de Tomas Kiselak
Expériences
Fonctions occupées
Actives
Inactives
Sociétés cotées
Entreprise privées
Relations
71
Relations au 1er degré
12
Entreprises liées au 1er degré
Homme
Femme
Administrateurs
Exécutifs
Sociétés liées
| Entreprise privées | 12 |
|---|---|
RA Capital Management LP
 RA Capital Management LP Investment ManagersFinance RA Capital is a multi-stage investment manager that focuses evidence-based investing in public and private healthcare and life science companies which develops drugs, medical devices, diagnostics, services, and research tools. The firm’s portfolio of private and public companies spans the globe and most therapeutic areas across all stages from discovery through commercialization. | Finance |
Spyre Therapeutics, Inc.
 Spyre Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Operates as a clinical-stage biotechnology company | Health Technology |
Amherst College
 Amherst College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Harvard Medical School
 Harvard Medical School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Fairmount Funds Management LLC
Fairmount Funds Management LLC Investment ManagersFinance Provides investment advice | Finance |
Viridian Therapeutics, Inc.
 Viridian Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Operates as a biotechnology company that develops and manufactures monoclonal antibody products | Health Technology |
Viridian LLC
Viridian LLC BiotechnologyHealth Technology Operates as a biopharmaceutical incubator company | Health Technology |
RA Capital Management LP (Private Equity)
RA Capital Management LP (Private Equity) Investment ManagersFinance RA Capital invests in both public and private companies located in the United States. The firm targets companies operating in the fields of healthcare and life sciences. It provides financing for pre-seed, seed stage, early stage and growth capital requirements . The firm acts as a lead and co-investor, makes follow-on investments and has a board seat requirement. | Finance |
Aerovate Therapeutics, Inc.
 Aerovate Therapeutics, Inc. BiotechnologyHealth Technology Provides gene therapy services | Health Technology |
Viridian Therapeutics, Inc. /Old/
Viridian Therapeutics, Inc. /Old/ BiotechnologyHealth Technology Operates as a biotechnology company | Health Technology |
Apogee Therapeutics, Inc.
 Apogee Therapeutics, Inc. BiotechnologyHealth Technology Operates as a clinical stage biotechnology company that develops therapies for immunological and inflammatory disorders | Health Technology |
Dianthus Therapeutics, Inc.
 Dianthus Therapeutics, Inc. BiotechnologyHealth Technology Develops therapeutics for patients with autoimmune and inflammatory diseases | Health Technology |
