![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
Nessuna posizione attualmente
Patrimonio netto: 3 M $ in data 30/09/2026
Profilo
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.
Partecipazioni note in società pubbliche
| Società | Data | Numero di azioni | Valutazione | Data di valutazione |
|---|---|---|---|---|
0% | 20/05/2026 | 38.704 ( 0% ) | 3 M $ | 30/09/2026 |
Posizioni attive di Mark Helderman
| Società | Posizione | Inizio |
|---|
Precedenti posizioni note di Mark Helderman
| Società | Posizione | Fine |
|---|---|---|
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. | Gestore di Portafoglio-Azioni | 01/01/2019 |
| ONEOK, INC. | Direttore/Membro del Consiglio | - |
Formazione di Mark Helderman
Esperienze
Posizioni ricoperte
Attive
Inattive
Società nel listino
Aziende private
Relazioni
56
Relazioni di 1° grado
4
Aziende connesse in 1º grado
Uomo
Donna
Amministratori
Dirigenti
Società collegate
| Aziende private | 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 |
