Ellen Siminoff

Ellen Siminoff

Chairman at COMMERCE.COM, INC.

Net worth: 5 M $ as of 2025-11-29

57 year
Technology Services
Consumer Services
Commercial Services

Profile

Ms. Ellen F.
Siminoff
is an Independent Director at Take-Two Interactive Software, Inc. and an Executive Chairman at Commerce.com, Inc. She is on the Board of Directors at Follett Corp., Take-Two Interactive Software, Inc., VeriFone, Inc., BigCommerce Pty Ltd. and Shmoop University, Inc. Ms. Siminoff was previously employed as an Independent Director by Zynga, Inc., an Independent Director by SolarWinds North America, Inc., an Independent Director by Journal Communications, Inc., an Independent Director by U.S.
Auto Parts Network, Inc., a Chairman by Efficient Frontier, Inc., a Senior Vice President-Corporate Development by Yahoo!, Inc., and a Manager-Online Classifieds by Los Angeles Times Communications LLC.
She also served on the board at Discovery Education, Inc., Glu Mobile LLC, Mozilla Corp., SolarWinds Corp., 4INFO, Inc., BuildDirect.com Technologies, Inc. /Old/, Journal Broadcast Group, Inc., Picaboo Corp., RichRelevance, Inc., Tap11, Inc. and The Mozilla Foundation.
She received her undergraduate degree from Princeton University, a graduate degree from Harvard Extension School and an MBA from Stanford Graduate School of Business.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
2025-11-13 14,321 ( 0.01% ) 4 M $ 2025-11-29
2025-09-09 331,319 ( 0.41% ) 2 M $ 2025-11-29

Ellen Siminoff active positions

CompaniesPositionStart
COMMERCE.COM, INC. Chairman 2024-09-30
TAKE-TWO INTERACTIVE SOFTWARE, INC. Director/Board Member 2022-05-22
Director/Board Member 2022-06-30
Director/Board Member 2021-02-28
Director/Board Member 2020-03-02
Founder 2006-12-31
All active positions of Ellen Siminoff

Former positions of Ellen Siminoff

CompaniesPositionEnd
ZYNGA INC. Director/Board Member 2022-05-22
Director/Board Member 2022-03-31
SOLARWINDS INC Director/Board Member 2016-02-04
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Training of Ellen Siminoff

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Connections

99

1st degree connections

27

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Linked companies

Private companies27

Electronic Technology

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Commercial Services

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