![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
Plus aucun poste en cours
Fortune : 3 M $ au 30/09/2026
Profil
Mr. Mark W.
Helderman is an Independent Director at ONEOK, Inc. He is on the Board of Directors at ONEOK, Inc. Mr. Helderman was previously employed as an Independent Director by ONEOK, Inc. (Old) and a Managing Director & Portfolio Manager by Sasco Capital, Inc. He received his undergraduate degree from the University of Dayton and a graduate degree from the University of Oklahoma.
Détentions connues dans des sociétés publiques
| Société | Date | Nombre d'actions | Valorisation | Date de valorisation |
|---|---|---|---|---|
0% | 20/05/2026 | 38 704 ( 0% ) | 3 M $ | 30/09/2026 |
Postes actifs de Mark Helderman
| Sociétés | Poste | Début |
|---|
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 |
| ONEOK, INC. | Directeur/Membre du Conseil | - |
Formation de Mark Helderman
Expériences
Fonctions occupées
Actives
Inactives
Sociétés cotées
Entreprise privées
Relations
56
Relations au 1er degré
4
Entreprises liées au 1er degré
Homme
Femme
Administrateurs
Exécutifs
Sociétés liées
| Entreprise privées | 4 |
|---|---|
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 |
University of Oklahoma
 University of Oklahoma Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
