Zimmer Partners Becomes Activist Shareholder in James River Group Holdings

James River Group Holdings (JRVR) shares rose 3% after Zimmer Partners filed a 13D form, signaling its shift from passive to activist ownership. The firm now holds a 10% stake and is the third-largest shareholder.

By Joshua Fineman, SA News Editor · Seeking Alpha · May 18, 2026, 19:24 UTC

Zimmer Partners Becomes Activist Shareholder in James River Group Holdings

Tickers: $JRVR

Topics: activist investor stock ownership change

Read the full article at Seeking Alpha

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