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Mary Tidlund
No open positions remaining
Net worth: 405 223 $ as of 2026-05-30
Profile
Ms. Mary A. Tidlund was previously employed as an Independent Director by CompX International, Inc., an Independent Director by Valhi, Inc., a President by Mary A Tidlund Charitable Foundation, and a President & Chief Executive Officer by Williston Wildcatters Oil Corp.
She also served on the board at Valhi, Inc.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-19 | 8,100 ( 0.07% ) | 203 634 $ | 2026-05-30 | |
VALHI, INC. 0.04% | 2026-05-20 | 10,391 ( 0.04% ) | 149 526 $ | 2026-05-30 |
Kronos Worldwide, Inc.
 Kronos Worldwide, Inc. Chemicals: SpecialtyProcess Industries Produces and markets value-added titanium dioxide pigments 0.01% | 2025-05-21 | 7,241 ( 0.01% ) | 52 063 $ | 2026-05-30 |
Former positions of Mary Tidlund
| Companies | Position | End |
|---|---|---|
| VALHI, INC. | Director/Board Member | 2026-06-29 |
| COMPX INTERNATIONAL INC. | Director/Board Member | 2026-06-29 |
Mary A Tidlund Charitable Foundation
 Mary A Tidlund Charitable Foundation Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment | Founder | 2017-05-31 |
| VALHI, INC. | Director/Board Member | 2015-05-27 |
Williston Wildcatters Oil Corp.
 Williston Wildcatters Oil Corp. Oil & Gas ProductionEnergy Minerals Engages in exploration and production of oil & gas | Chief Executive Officer | 1994-12-31 |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
15
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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