Mary Ludford

Director/Board Member at OTTER TAIL CORPORATION

Net worth: 825 014 $ as of 2026-05-30

66 year

Utilities

Consumer Services

Profile

Mary E.
Ludford is currently an Independent Director at Otter Tail Corp.
since 2023, and an Independent Director at both Northwest Natural Gas Co. and Northwest Natural Holding Co. since 2024.
Formerly, Ms. Ludford was a Director at Zoo Safari Monorails Corp.
and served as Deputy Chief Security Officer at Exelon Corp.
from 2018 to 2020.
Ms. Ludford completed undergraduate studies at Western Illinois University and earned an MBA from Quinlan School of Business.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
OTTER TAIL CORPORATION 0.02%	2026-04-12	7,071 ( 0.02% )	612 773 $	2026-05-30
NORTHWEST NATURAL HOLDING CO. 0.01%	2026-05-06	4,377 ( 0.01% )	212 241 $	2026-05-30

Mary Ludford active positions

Companies	Position	Start
OTTER TAIL CORPORATION	Director/Board Member	2022-12-31
NORTHWEST NATURAL HOLDING COMPANY	Director/Board Member	2024-08-18
Northwest Natural Gas Co. Northwest Natural Gas Co. Gas DistributorsUtilities Provides natural gas distribution services	Director/Board Member	2024-08-18

All active positions of Mary Ludford

Former positions of Mary Ludford

Companies	Position	End
EXELON CORPORATION	Comptroller/Controller/Auditor	2015-12-31
Zoo Safari Monorails Corp. Zoo Safari Monorails Corp. Other Consumer ServicesConsumer Services Operates zoo	Director/Board Member	-

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Training of Mary Ludford

Experiences
Positions held

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Inactive

Listed companies

Private companies

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Connections

1st degree connections

1st degree companies

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Female

Members of the board

Executives

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Linked companies

Private companies	7
Northwest Natural Gas Co. Northwest Natural Gas Co. Gas DistributorsUtilities Provides natural gas distribution services	Utilities
Otter Tail Corp. Otter Tail Corp. Electric UtilitiesUtilities Manufactures plastics pipes and generates power	Utilities
Exelon Corp. Exelon Corp. Electric UtilitiesUtilities Functions as a holding company whose subsidiaries provides energy transmission and distribution services	Utilities
Western Illinois University Western Illinois University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Zoo Safari Monorails Corp. Zoo Safari Monorails Corp. Other Consumer ServicesConsumer Services Operates zoo	Consumer Services
Quinlan School of Business Quinlan School of Business Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Northwest Natural Holding Co. Northwest Natural Holding Co. Gas DistributorsUtilities Operates as holding company whose subsidiaries maintains natural gas distribution system	Utilities