Mike is the Co-Founder and CEO of Alder Brooks. He is a seasoned operator and entrepreneur with a proven track record in commercial leadership, having served as Co-Founder & CEO of Wolf Hill Group (sold to Slone Partners) and as Chief Commercial Officer at Pathology, Inc. (sold to LabCorp).
Mike is the Co-Founder and CEO of Alder Brooks. He is a seasoned operator and entrepreneur with a proven track record in commercial leadership, having co-founded Wolf Hill Group (sold to Slone Partners) and served as Chief Commercial Officer at Pathology, Inc.
Before co-founding Alder Brooks, Mike co-founded Wolf Hill Group, a cybersecurity executive search firm that Slone Partners acquired in 2022.
Earlier in his career, Mike was the second employee at Slone Partners, where he played a key role in the firm's growth, holding leadership positions including Chief Operating Officer and President of Cybersecurity. He also held VP of Sales roles at LabCorp and Sonic Healthcare and served as Chief Commercial Officer at Pathology, Inc., backed by ABS Capital (sold to LabCorp).
Mike graduated with honors from Le Moyne College, earned an M.A. in Applied Physiology from Columbia University, and completed his MBA at the Marshall School of Business, University of Southern California.
He enjoys skiing with his family, swimming, and walking his Bernese Mountain Dogs in the Colorado mountains.
Stephen is an Advisory Board Member of Alder Brooks and Co-Founder. Stephen was formerly a Senior Managing Director within Blackstone’s advisory business located in New York and London.
Stephen is an Advisory Board Member of Alder Brooks and Co-Founder. Stephen was formerly a Senior Managing Director within Blackstone’s advisory business located in New York and London.
While at Blackstone, Stephen advised the firm's corporate and sovereign clients on acquisitions, divestitures, private capital raises, and financial restructurings. Stephen began his career on Wall Street at Donaldson, Lufkin & Jenrette. In 2015 Stephen founded Acabonac Farms, a regenerative agricultural enterprise that works to better the environment and improve animal and human health.
Stephen is a graduate of The University of Pennsylvania’s Wharton School.
Stephen is married, has three children, enjoys ranching, traveling and playing blackjack.
Patty Sipes is an accomplished executive leader with over three decades of experience in healthcare, diagnostics, and technology-driven organizations. A former CEO, CCO, and strategic consultant recognized by Top 100 Magazine as a Top Innovator and Entrepreneur, she brings deep expertise in growth strategy, M&A readiness, and leadership transformation. At Alder Brooks, Patty leverages her extensive C-suite experience to help clients identify exceptional leaders and build organizations positioned for sustainable success.
Patty Sipes is a seasoned executive leader and strategist with over 30 years of experience driving growth, operational excellence, and organizational transformation across the healthcare, diagnostics, and life sciences sectors. Recognized by Top 100 Magazine as a Top Innovator and Entrepreneur, Patty brings a proven record of success as a CEO, CCO, and consultant to both private equity-backed and publicly traded organizations.
Her career includes executive leadership at Incyte Diagnostics, Inform Diagnostics, and PAML, as well as founding and leading Esoteric Lab Consultants — a strategic advisory firm specializing in business turnarounds, infrastructure optimization, and M&A readiness. Patty is known for her ability to assess leadership dynamics, identify growth opportunities, and match top talent with organizations positioned for transformation.
At Alder Brooks, Patty leverages her extensive C-suite experience and deep understanding of healthcare, diagnostics, and technology-driven businesses to advise clients on executive search, leadership alignment, and commercial strategy. She brings a unique blend of analytical precision, emotional intelligence, and integrity — ensuring every placement strengthens both the leadership team and the organization’s long-term success.
Colleen brings more than 25 years of experience across life sciences and healthcare, spanning enterprise sales, global talent leadership, and retained executive search. She has built talent functions from the ground up, partnered with leadership teams to drive growth, and delivered executive searches across life sciences and healthcare organizations.
Colleen brings more than 25 years of experience across life sciences and healthcare, spanning enterprise sales, global talent leadership, and retained executive search. She has built talent functions from the ground up, partnered with leadership teams to drive growth, and delivered executive searches across life sciences and healthcare organizations.
Her unique combination of operating experience and search expertise makes her exceptionally well positioned to help companies secure the leadership they need—exactly when they need it.
At Alder Brooks, Colleen will lead Interim Leadership Solutions, a dedicated division focused on placing fractional and interim executives for organizations navigating critical moments—whether that’s rapid growth, leadership transitions, or post-close integration. She will also partner closely with clients as they convert interim needs into permanent executive hires.
Holly Smith is an experienced executive search consultant with over a decade of experience supporting life sciences companies from early-stage through commercialization. She specializes in partnering with founders, CEOs, andinvestors to deliver targeted search strategies for leadership roles that require deep scientific fluency and industry expertise.
Holly Smith is an experienced executive search consultant with over a decade of experience supporting life sciences companies from early-stage through commercialization. She specializes in partnering with founders, CEOs, andinvestors to deliver targeted search strategies for leadership roles that require deep scientific fluency and industry expertise.
Her career includes executive search leadership at Slone Partners, founding her own boutique firm, Holly Smith Strategic Search, and earlier sales and product leadership roles at Charles River Laboratories. This combination of operating experience and search expertise gives her a strong understanding of the full drug development lifecycle and the talent required to build and scale high-performing teams.
At Alder Brooks, Holly focuses on executing retained searches for high-growth life sciences companies, bringing a high-touch, consultative approach to each engagement. She is particularly experienced in biopharma and AI-driven business models, strengthening the firm’s ability to support clients building teams in complex and emerging areas of the industry.
Holly holds an MBA with a specialization in Health Care Administration from Rivier University and is a Lean Six Sigma White Belt.
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