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Grey Matter: Inside the Minds of the People Who Move the World

Jimmy Dunne: Vice Chairman & Senior Managing Principal, Piper Sandler

Meeting the Moment: Pressure in Perspective

Jimmy Dunne is often described as a legendary figure in the finance and sporting world. But he’d describe himself more simply—as someone who shows up, relentlessly, for the people who stood by him and the moments that define what matters.

For over a decade, he built Sandler O’Neill into one of Wall Street’s most respected investment banks. On September 11th, 2001, the firm lost 66 colleagues, nearly one-third of the company, when the South Tower collapsed.

He attended every funeral. Committed to paying for every child’s college education. And rebuilt the firm from the ground up, refusing to let terrorism win or fear change how he lived.

That same resolve and grit have defined everything Jimmy does, from rebuilding his firm to fighting for the future of the game of golf while the world was watching.

He does not see any of this as heroic. To him, it’s about gratitude, loyalty, and the obligation to do right by the people who believed in you back when nobody was watching at all.

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