Leadership Team

Stephen Rothrock CEO ATREG

Stephen Rothrock

President & CEO

Stephen Rothrock CEO ATREG

Stephen Rothrock

Stephen founded ATREG in 2000 to help global advanced technology companies divest and acquire infrastructure-rich manufacturing assets, including wafer fabs (front- and back-end) as well as MEMS, solar, display, and R&D facilities. Over the last 24 years, his firm has completed over 100 transactions, representing over 40% of all global operational wafer fab sales in the semiconductor industry for operational, warm, and cold shells. Recent global acquisitions and dispositions have involved Allegro MicroSystems, Elmos, Fujitsu, GlobalFoundries, IBM, imec, Infineon, JDI, Matsushita (Panasonic), Micron, NXP, onsemi, Sony, Qualcomm, Renesas, Robert Bosch, Texas Instruments, and VIS to name just a few.

Prior to founding ATREG, Stephen established Colliers International’s Global Corporate Services initiative and headed the company’s U.S. division based in Seattle, Wash. Before that, he worked as Director for Savills International commercial real estate brokerage in London, UK, also serving on the UK-listed property company’s international board. He also spent four years near Paris, France working for an international NGO. Stephen holds an MA degree in Political Theology from the University of Hull, UK and a BA degree in Business Commerce from the University of Washington in Seattle, USA.

Annie Rothrock, SVP, ATREG

Annie Rothrock

Senior Vice President

Annie Rothrock, SVP, ATREG

Annie Rothrock

Annie joined the ATREG team in January 2016. As Vice President, she is responsible for advising the world’s most reputable chip makers on their global strategic manufacturing asset sales and acquisitions. Over the past seven years, Annie has successfully led both sell- and buy-side semiconductor fab and cleanroom transactions for such clients as Elmos, GlobalFoundries, Micron, onsemi, Renesas, TDK, Texas Instruments, and VIS amongst many others. In 2022, she facilitated the sale of onsemi’s operational GaN-capable 150mm fab in Oudenaarde, Belgium to Belgian photonics company  BelGaN Group B.V.

In 2019, Annie was instrumental in Wolfspeed’s decision to select the Marcy Nanocenter in NY’s Mohawk Valley to build the world’s first, largest, and only 200mm greenfield silicon carbide (SiC) manufacturing facility. In 2017, she led the sale of Texas Instruments’ operational 200mm / 150mm fab in Greenock, Scotland, UK to Diodes.

Before joining ATREG, Annie served for three years as Business Development Manager for international recruitment firm SThree in San Francisco, Calif. In 2013, she won the company’s annual Tech Industry Top Biller Award for SThree America for her outstanding revenue-generating performance.

Annie holds a BA degree in both Political Science and Environmental Studies from Santa Clara University in Santa Clara, Calif., USA and completed the Women’s Leadership Development Program from the Oxford Saïd Business School, UK. She is a regular sought-after speaker at global semiconductor industry conferences as well as the published author of articles on topics ranging from the state of the global manufacturing asset market and human capital retention to diversity and inclusion in the semiconductor industry.

Nick Papa

Senior Vice President

Nick Papa

In his client services leadership role, Nick advises and supports the ATREG team in servicing client needs, including developing fab and cleanroom acquisition and disposition strategies. During his 17-year tenure at ATREG, Nick has managed successful disposition assignments totaling over $2 billion in transaction value with such clients as ams, Freescale, Fujitsu, Infineon, Japan Display, GlobalFoundries, Micron, NXP, onsemi, Qimonda, Renesas, and Texas Instruments to name just a few.

He began his career in property management and investment analysis, eventually overseeing research and marketing for Grubb & Ellis’ Puget Sound offices in Seattle, Wash.

Nick holds a BA degree in Anthropology from Western Washington University in Bellingham, Wash., USA.

Muriel Guilbert

Head, Global Marketing

Muriel Guilbert

A seasoned strategic marketer with 20+ years of international business experience, Muriel drives and oversees ATREG’s global corporate and client marketing communication function. From annual planning and budgeting to execution with internal teams and external vendors, Muriel has helped a number of technology businesses – large and small – all over the world launch and build strong brands, raise market awareness, establish thought-leadership, and generate qualified leads to enhance revenue and profitability.

Prior to joining ATREG in a consulting capacity in August 2010, Muriel served for four years as Managing Director, Global Marketing for consumer panel company Global Market Insite, Inc. (GMI) in Bellevue, Wash. Under her tenure, she built a large global marketing organization from the ground up on all continents to support the company’s rapid international expansion and helped grow company revenue by 250% from 2005 to 2008 while solidifying GMI’s position in the online research industry’s top global players.

Before GMI, Muriel served for two years as Vice President of Marketing at NetReflector, Inc. in Seattle, Wash., repositioning the company as a new thought-leader in the emerging enterprise feedback management space and helping raise revenue from $1.5 to $5 million before the company’s acquisition by GMI. Prior to NetReflector, Muriel worked as Account Director for public relations (PR) and integrated branding firm Parker LePla in Seattle, Wash. for five years, developing successful PR and brand strategies for accounts in CRM, telecommunications, healthcare, e-commerce, and outsourcing. Before that, Muriel held various senior marketing and communications positions at Thorn EMI in London, UK, British Telecom in Birmingham, UK, and Siemens in Stuttgart, Germany.

A French national fluent in English and German, Muriel holds a Master’s degree in International Business Studies from l’Université de la Sorbonne (Paris IV) in Paris, France. She has served as a board member and marketing chair for British-American Business Connections (BABC-PNW) as well as MIT Enterprise Forum of the Northwest, part of Technology Review, a publication from the Massachusetts Institute of Technology (MIT) in Cambridge, Mass. Muriel currently volunteers for the Pacific Northwest Aerospace Alliance (PNAA) in Redmond, Wash.

Yoshimichi Takizawa, ATREG Japan

Yoshimichi Takizawa

Managing Director, Japan

Yoshimichi Takizawa, ATREG Japan

Yoshimichi Takizawa

Based in Tokyo, Japan, Takizawa-san joined the ATREG team in May 2012 as Vice President, Asia, bringing extensive semiconductor industry experience to the company. He started his career as Staff Engineer at Fuji Electric Co., Ltd., engaged in the development and production of semiconductor devices. He went on to serve in a variety of positions, starting as an Assistant Manager, Sales Development for Fuji Electronic Components KK (FEC), a joint-venture between Siemens and Fuji Electric, selling Siemens products in Japan via Fuji’s existing sales network. Takizawa-san then became General Manager, IC Marketing Department.

FEC changed its name to Siemens Components KK and Takizawa-san then served as Director of Strategic Planning, responsible for Japanese operations and marketing strategy, including new product promotions (DRAM, MCU, automotive ICs, mobiles phone devices, power devices), corporate sales operation programs, mass-market strategy, and key account management. Over seven years, Takizawa-san has worked with clients such as Fujitsu, Hitachi, Micron, Renesas, Rohm, Sony, and Texas Instruments among many others.

Takizawa-san holds a BS degree in Metallurgy (electro-chemical science) from Tokyo University’s Faculty of Technology, Japan.