![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
Direktör/Styrelseledamot på
ONEOK, INC.
Förmögenhet: 4 M $ per 2026-08-31
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.
Kända innehav i offentliga företag
| Företag | Datum | Antal aktier | Värdering | Värderingsdatum |
|---|---|---|---|---|
ONEOK, INC. 0,01 % | 2026-05-20 | 38 704 ( 0,01 % ) | 4 M $ | 2026-08-31 |
Aktiva positioner av Mark Helderman
| Företag | Position | Start |
|---|---|---|
| ONEOK, INC. | Direktör/Styrelseledamot | 2019-02-19 |
Tidigare kända positioner av Mark Helderman
| Företag | Position | Slut |
|---|---|---|
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. | Portföljförvaltare-Aktier | 2019-01-01 |
Mark Heldermans utbildningar
Erfarenheter
Innehade positioner
Aktiva
Inaktiva
Börsnoterade företag
Privata företag
Relationer
66
Första gradens relationer
3
Företag kopplade till första graden
Man
Kvinna
Styrelseledamöter
Chefer
Kopplade företag
| Privata företag | 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 |
