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← Our PeopleFounding Managing DirectorJack KelleherCollected Strategies
Biography

Jack Kelleher has helped clients develop and implement thoughtful communications strategies around key strategic and financial matters.

His experience includes having supported some of the largest and most complex M&A and spinoff transactions in recent years and he has advised dozens of companies in engaging with and defending against activist investors, including Starboard, Trian, JANA, Carl Icahn, and Third Point. With unique expertise in media engagement, Jack has supported companies facing a variety of crises, including reputational issues, defense against short-sellers, data breaches, earnings surprises, SEC investigations, regulatory actions, litigation, unplanned leadership changes, closures and workforce reductions.

Prior to Collected, Jack was a Managing Director at Joele Frank. He began his communications career in the Analysis and Research division of Brunswick Group’s corporate headquarters in London. He received a BA in Business and Marketing Management from Oxford Brookes University in the U.K.

M&A
  • Beazer Homes (defense against $705M hostile offer from Dream Finders Homes)
  • Cross Country Healthcare ($437 million sale to Knox Lane)
  • TriPointe Homes ($4.5 billion sale to Sumitomo Forestry)
  • American Woodmark ($3.6 billion merger with MasterBrand)
  • MRC Global ($1.5 billion merger with DNow)
  • Sekisui House ($4.9 billion acquisition of MDC Holdings)
  • The Cigna Group ($3.7 billion sale of its Medicare Advantage, Cigna Supplemental Benefits, Medicare Part D and CareAlliesbusinesses to Health Care Service Corporation)
  • Hudson Valley Credit Union ($28.6 million acquisition of CatskillHudson Bank)
  • UpHealth ($180 million sale of Cloudbreak to GTCR)
  • Veradigm ($140 million acquisition of ScienceIO)
  • Iveric Bio ($5.9billion sale to Astellas Pharma)
  • Jack in the Box ($585 million acquisition of Del Taco)
Shareholder Activism
  • Matthews in its defense against Barington Capital
  • Colgate in its defense against Third Point
  • Eagle Materials in its defense against Sachem Head Capital Management
  • Elanco in its settlement with Sachem Head Capital Management
  • Humana in its settlement with Starboard Value
  • Huntsman in its successful proxy contest against Starboard Value
  • Perspecta in its defense against JANA
  • Progenics in its defense against Velan Capital
  • Virtusa in its defense against New Mountain Capital
  • Veradigm ($140 million acquisition of ScienceIO)
  • Iveric Bio ($5.9billion sale to Astellas Pharma)
  • Jack in the Box ($585 million acquisition of Del Taco)
Areas of Expertise
  • Media Relations
  • M&A
  • Private Equity
  • Investor Relations
  • Spin-offs and IPOs
  • Shareholder Activism
  • Real Estate
  • Financial Services
  • Mining
  • Media & Entertainment
  • Energy & Utilities
Background
  • Managing Director at Joele Frank
  • Researcher at Brunswick Group
Our Track Record
Experience that speaks for itself.
Our founding team has advised on over $3.7 trillion in transactions, 400+ activist engagements, and 80+ restructurings. See our full record of selected transactions, league table rankings, and practice area depth.
View Our Experience →
$3.7TIn transactions advised
400+Activist engagements
80+Restructurings
#3Bloomberg 2025 activism rankings