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Mr. Jeffrey J. Titterton is a Chief Operating Officer at Zendesk, Inc. Mr. Titterton was previously employed as a Head-Global Campaign & Engagement Marketing by Adobe Systems, Inc., a Chief Marketing Officer by 99designs, Inc., a Principal by Alexander Ogilvy, a Principal by Future Publishing Ltd., and a Senior Vice President by PlanetOut, Inc. He received his undergraduate degree from Cornell University.

Paul F.
Titterton is currently a Director at GATX Rail Canada Corp.
and RailPulse LLC.
He previously worked as a Director at Providence & Worcester Railroad Co. from 2008 to 2011.
Mr. Titterton also served as the SVP & Chief Operating Officer-Rail North America at GATX Corp.
starting in 1997.
He completed his undergraduate degree at Harvard College.

Jonathon Titterton is currently the Director at Packaging Machinery Manufacturers Institute, Inc. since 2014 and also the President at R.A.
Jones & Co. He previously worked as the Director-Sales & Marketing at Syntegon Packaging Technology LLC.

David George Titterton is currently a Director at Npower Northern Ltd.
and a Non-Executive Director at ELEXON Ltd.
He previously worked as a Director at npower Ltd.

Mark John Titterton currently works at Rippleglen Ltd., as Director from 2017, Eastcliffe News Shops Ltd., as Director from 2017, The Derby Diocesan Board of Finance Ltd., as Director from 2013, Maynews Ltd., as Director, First Stop News Ltd., as Director from 2017, James Convenience Retail Ltd., as Director from 2017, and Supernews Stores Ltd., as Director from 2017.

Lewis H.
Titterton is the founder of Mede America Corp, which was founded in 1986.
Mr. Titterton's current job is as the Lead Independent Director at Anixa Biosciences, Inc. since 1999 and as an Independent Director at ParkerVision, Inc. since 2023.
Mr. Titterton's former jobs include being the Chief Executive Officer at Management & Planning Services, Inc. from 1978 to 1986, Chairman at Nymed, Inc. from 1989 to 2018, and Independent Director at ParkerVision, Inc. from 2018 to 2019.
Mr. Titterton's education includes an undergraduate degree from Cornell University and an MBA from the State University of New York at Albany.

Jennifer Titterton currently works at Trinity College School, as Trustee and Fleming Reinsurance Ltd., as Vice President-Operations.