Leadership Team

Dan Widmaier, PhD

Chief Executive Officer / Co-Founder / Director

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    Dan has carefully tended Bolt’s growth since 2009, using his passion and expertise to lead the company through technology development, expansion, and financing. He obtained Ph.D. in Chemistry and Chemical Biology from UC San Francisco, where his graduate research involved designing genetic circuits to control microbial organelles.

David Breslauer, PhD

Chief Technology Officer / Co-Founder / Director

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    David leads technology innovation and development at Bolt, creating and incubating biomaterials for improved consumer products. He has vast experience with biomaterials including graduate research on silk during his Bioengineering Ph.D. at UC Berkeley and UCSF.

Cintia Nardi

President

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    Over 25 years of successful leadership in Operations, Supply Chain, and Commercial strategy, across Direct-to-Consumer (DTC) and Business-to-Business (B2B) models at Unilever, Estée Lauder Companies, and Cosmetica Laboratories.

Randy Befumo

Interim Chief Financial Officer

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    Randy has 20+ years of experience in finance and investment, most recently as Chief Financial Officer of Eventbrite where he helped to guide the company through a successful IPO. He's also Former Director of Research, analyst, and portfolio manager at Legg Mason Capital Management for 15 years.

Paul Slattery

General Counsel

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    Paul is an Experienced General Counsel specializing in highly regulated, multinational startups in the growth and go-public phases. His expertise includes emphases on tech and IP-driven strategies and their interaction with regulators. He also has prior experience in patent, commercial, antitrust, trade secret, class action, and consumer protection law over 8 years litigating at Quinn Emanuel.

Board of Directors

Ransley Carpio

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    Ransley Carpio has been the Vice President of Business Development for Front Row Group, a digital marketing and brand partnership company, since April 2022 and has been a Member of Carpio Companies LLC, a company providing advisory assistance to consumer focused private equity funds and their portfolio investments, since January 2014. From January 2020 to July 2023, Mr. Carpio was a Managing Partner, and a member of the board of directors, at Patina Brands LLC, a beauty product brand incubator. Mr. Carpio has previously served on the board of directors for a privately held company. Mr. Carpio holds a B.S. in Management from the University of Phoenix.


Jeri Finard

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    Jeri Finard has been a Managing Partner at Lykos Capital Partners, an advisory firm for emerging consumer-facing companies, since February 2018. Formerly she served as Chief Executive Officer of Godiva Chocolatier, N.A. (“Godiva”), the luxury retailer of high-quality confections, from 2012 to 2014. Prior to Godiva, Ms. Finard served as Global Brand President of Avon, Inc., a multinational cosmetics and skincare company, from July 2008 to January 2012, and in a variety of senior roles at Mondelez International, Inc. (“Mondelez”), a multinational confectionary, food, and beverage company, from July 1986 to June 2007. Her roles at Mondelez included Global Chief Marketing Officer, Executive Vice President and General Manager of the Beverages division, and Executive Vice President and General Manager of the Desserts division. Ms. Finard served on the board of directors of Frontier Communications from March 2005 to May 2014. Ms. Finard also currently serves on the board of directors for a privately held company, and has previously served on the boards of several other privately held companies. Ms. Finard holds a B.A. in Politics from Brandeis University and an MBA from Columbia University.


Sami Naffakh

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    Sami Naffakh has been the Chief Supply Officer at Reckitt Benckiser PLC, a multinational consumer goods company, since July 2020. Mr. Naffakh previously served as the Chief Operations Officer at Arla Foods Group, a multinational dairy cooperative, from January 2018 to June 2020, the Senior Vice President of Supply Chain for Europe, Middle East, and Africa at Estée Lauder Companies Inc., a multinational cosmetics company, from March 2014 to December 2017, and the Senior Vice President of Supply Chain for the Asia-Pacific Region at Danone Infant Nutrition Asia Pacific, an international company focused on infant nutrition products from March 2012 to February 2014. Mr. Naffakh holds a Master’s Degree in Industrial Engineering from École des Hautes Études Industrielles.

Daniel Steefel

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    Daniel Steefel has been a Partner at Nexxus Holdings Inc. (“Nexxus”), an investment firm, since September 2018. He has extensive experience in investment management, and prior to Nexxus, served as the Founder and Managing Partner at Steefel Capital Management, a hedge fund management firm, from October 2015 to August 2018and Manager, Investments at the David and Lucile Packard Foundation, a private foundation, from August 2011 to October 2015. Mr. Steefel also served on the board of directors of two privately held companies. Mr. Steefel holds a B.A. in Public Policy from Stanford University.

Steven Klosk

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    Steven Klosk has served on GAMC’s board of directors since March 2021. Mr. Klosk served as a director of Cambrex Corporation (formerly NYSE: CBM), a leading global small molecule contract development and manufacturing organization (“Cambrex”), from 2008 until June 2020, and served as its President and Chief Executive Officer from 2008 until its acquisition by Permira in December 2019 and remained Chief Executive Officer through June 2020. Having joined Cambrex in 1992, Mr. Klosk held positions of increasing responsibility, including Executive Vice President, Administration, through 2005, when he assumed direct responsibility for the leadership of the Biopharmaceutical Business Unit as Chief Operating Officer. In August 2006, Mr. Klosk assumed the responsibility of the Pharma business as Executive Vice President and Chief Operating Officer — Biopharma & Pharma, and in February 2007, was appointed to Executive Vice President, Chief Operating Officer and President, Pharmaceutical Products and Services, the last role he held prior to being appointed President and Chief Executive Officer. Earlier in his career Mr. Klosk served as Vice President, Administration for The Genlyte Group, Inc., a publicly traded producer of lighting fixtures. Mr. Klosk earned a B.S. from Cornell University and a J.D. from New York Law School. Mr. Klosk has served on the board of directors of Lisata Therapeutics. (Nasdaq: LSTA) since 2014. He also currently serves on the board of directors of Recipharm, a pharmaceutical contract development and manufacturing organization (“CDMO”), NJ Biopharmaceuticals LLC, a pharmaceutical contract research organization and BioIVT, a global provider of biologic specimens for pharma/biotech research. Mr. Klosk also serves as Chairman of the board of directors of Formulated Solutions, a topicals CDMO.

Esther van den Boom

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    Esther van den Boom has been the owner and managing partner of van den Boom & Associates, a finance and accounting group specializing in the life sciences industry, since April 2013. Ms. van den Boom previously served as the CFO of TYRA Biosciences, Inc., a publicly-traded clinical-stage biotechnology company, from December 2018 to December 2023, and as a Senior Manager at Ernst & Young, an international accounting firm, from December 2004 to March 2013. Ms. van den Boom holds a B.A. in Economics from University of California at San Diego and an MSA in Accountancy from San Diego State University. She is a licensed CPA in the state of California.

Jerry Fiddler

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    Jerry Fiddler has been the managing member of Zygote Ventures, LLC, a privately-held seed and angel venture capital fund, since 2009. He has helped create and grow numerous companies as Chief Executive Officer, chairman, director, investor and advisor. Mr. Fiddler is the founder of Wind River Systems, a company developing embedded system and cloud software, and was its Chief Executive Officer and Chairman from January 1989 to August 2008, and took it public via IPO in 1993. Wind River's VxWorks operating system, of which Mr. Fiddler was an original developer, controls all the Mars rovers, as well as numerous other devices on land, sea and outer space.  Additionally, Mr. Fiddler was Chairman of TerraVia Holdings, Inc. (formerly known as Solazyme) from January 2004 to December 2017, including through its IPO in 2011.  He currently serves on the board of directors of Bolt Threads, Inc., as well as several private company and non-profit boards. Mr. Fiddler holds a BA in Music and Photography and an MS in Computer Science from the University of Illinois at Urbana-Champaign.



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