![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/Bestuurslid bij
ONEOK, INC.
Vermogen: 4 M $ op 31-07-2026
Profiel
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.
Bekende belangen in openbare bedrijven
| Onderneming | Datum | Aantal aandelen | Totale waarde | Waarderingsdatum |
|---|---|---|---|---|
ONEOK, INC. 0,01% | 20-05-2026 | 38.704 ( 0,01% ) | 4 M $ | 31-07-2026 |
Actieve functies van Mark Helderman
| Bedrijven | Functie | Begin |
|---|---|---|
| ONEOK, INC. | Directeur/Bestuurslid | 19-02-2019 |
Eerdere bekende functies van Mark Helderman
| Bedrijven | Functie | Einde |
|---|---|---|
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. | Portefeuillebeheerder-Aandelen | 01-01-2019 |
Opleiding van Mark Helderman
Ervaring
Beklede functies
Actief
Inactief
Beursgenoteerde bedrijven
Bedrijven in privébezit
Connecties
65
Eerstegraads connecties
3
Bedrijven verbonden in de eerste graad
Man
Vrouw
Besturend
Uitvoerend
Verwante bedrijven
| Bedrijven in privébezit | 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 |
