![Mark Helderman](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>)
Mark Helderman
Directeur/Membre du Conseil chez
ONEOK, INC.
Fortune : 3 M $ au 31/05/2026
Profil
Mark William Helderman is an Independent Director at ONEOK, Inc. since 2019.
Mr. Helderman was Managing Director & Portfolio Manager at Sasco Capital, Inc. from 1997 to 2019.
Mr. Helderman completed undergraduate studies at the University of Dayton in 1981.
Détentions connues dans des sociétés publiques
| Société | Date | Nombre d'actions | Valorisation | Date de valorisation |
|---|---|---|---|---|
ONEOK, INC. 0,01 % | 20/05/2026 | 38 704 ( 0,01 % ) | 3 M $ | 31/05/2026 |
Postes actifs de Mark Helderman
| Sociétés | Poste | Début |
|---|---|---|
| ONEOK, INC. | Directeur/Membre du Conseil | 19/02/2019 |
Anciens postes connus de Mark Helderman
| Sociétés | Poste | Fin |
|---|---|---|
Sasco Capital, Inc.
 Sasco Capital, Inc. Investment ManagersFinance Sasco Capital employs a time-tested, contrarian approach to value investing in the Small, Smid and Mid-Cap market segments. The firm utilizes fundamental, bottom-up security analysis based on a proprietary screening process, individual company research, and meetings with senior management. They invest in out-of-favor, underperforming companies with restructuring and transformational potential. The investment strategy has a long-term investment horizon and low turnover. | Gestionnaire de Portefeuille-Actions | 01/01/2019 |
Formation de Mark Helderman
Expériences
Fonctions occupées
Actives
Inactives
Sociétés cotées
Entreprise privées
Relations
65
Relations au 1er degré
3
Entreprises liées au 1er degré
Homme
Femme
Administrateurs
Exécutifs
Sociétés liées
| Entreprise privées | 3 |
|---|---|
ONEOK, Inc.
 ONEOK, Inc. Oil & Gas PipelinesIndustrial Services Engages in gathering, processing, sale, transportation and storage of natural gas | Industrial Services |
Sasco Capital, Inc.
Sasco Capital, Inc. Investment ManagersFinance Sasco Capital employs a time-tested, contrarian approach to value investing in the Small, Smid and Mid-Cap market segments. The firm utilizes fundamental, bottom-up security analysis based on a proprietary screening process, individual company research, and meetings with senior management. They invest in out-of-favor, underperforming companies with restructuring and transformational potential. The investment strategy has a long-term investment horizon and low turnover. | Finance |
University of Dayton
 University of Dayton Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
