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Mary Tidlund
Director/Board Member at
VALHI, INC.
Net worth: 405 223 $ as of 31/05/2026
Profile
Mary A. Tidlund is the founder of the Mary A Tidlund Charitable Foundation, which was founded in 1998.
She held the title of President from 1998 to 2017.
Currently, she is an Independent Director at Valhi, Inc. and CompX International, Inc. since 2016.
In the past, she was the President & Chief Executive Officer of Williston Wildcatters Oil Corp.
from 1989 to 1995 and a Director at Valhi, Inc. from 2014 to 2015.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 20/05/2026 | 8,100 ( 0.07% ) | 203 634 $ | 31/05/2026 | |
VALHI, INC. 0.04% | 21/05/2026 | 10,391 ( 0.04% ) | 149 526 $ | 31/05/2026 |
Kronos Worldwide, Inc.
 Kronos Worldwide, Inc. Chemicals: SpecialtyProcess Industries Produces and markets value-added titanium dioxide pigments 0.01% | 22/05/2025 | 7,241 ( 0.01% ) | 52 063 $ | 31/05/2026 |
Mary Tidlund active positions
| Companies | Position | Start |
|---|---|---|
| VALHI, INC. | Director/Board Member | 17/03/2016 |
| COMPX INTERNATIONAL INC. | Director/Board Member | 17/03/2016 |
Former positions of Mary Tidlund
| Companies | Position | End |
|---|---|---|
Mary A Tidlund Charitable Foundation
 Mary A Tidlund Charitable Foundation Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment | Founder | 01/06/2017 |
| VALHI, INC. | Director/Board Member | 28/05/2015 |
Williston Wildcatters Oil Corp.
 Williston Wildcatters Oil Corp. Oil & Gas ProductionEnergy Minerals Engages in exploration and production of oil & gas | Chief Executive Officer | 01/01/1995 |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
21
1st degree connections
4
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Valhi, Inc.
 Valhi, Inc. Chemicals: SpecialtyProcess Industries Operates as a holding company | Process Industries |
CompX International, Inc.
 CompX International, Inc. Metal FabricationProducer Manufacturing Manufactures and distributes mechanical and electrical cabinet locks & other security products | Producer Manufacturing |
Williston Wildcatters Oil Corp.
Williston Wildcatters Oil Corp. Oil & Gas ProductionEnergy Minerals Engages in exploration and production of oil & gas | Energy Minerals |
Mary A Tidlund Charitable Foundation
Mary A Tidlund Charitable Foundation Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment | Miscellaneous |
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