Joseph P Platt Jr bought stock once, on Nov 18, 2025

Platt Joseph P. Jr. (often listed as Joseph P. Platt Jr.) is a corporate director and long-time board member of Greenlight Capital Re, Ltd. (GLRE), where he currently serves as Lead Director and has been a director of the company since 2022.( He previously served as a director of Greenlight Capital Re and its predecessor/affiliate entity from the company’s early years, holding board roles from 2004 until 2021 before rejoining the board and being designated Lead Director on July 26, 2022.( As a corporate insider, he has been an active shareholder; recent SEC filings show both direct and indirect ownership of Greenlight Capital Re ordinary shares and report transactions including an indirect open‑market sale of 12,000 shares through a partnership on May 14, 2026.(

Platt’s background is in the insurance and reinsurance sector. Greenlight Capital Re’s board biography notes that he was an owner, director, and executive vice president at J&H, where he was responsible for North America and for marketing and sales worldwide, and later served as head of the operating committee and a member of the executive committee at the firm.( He holds a B.A. from Manhattan College, earned in 1968.( In addition to his role at Greenlight Capital Re, third‑party board and governance data identify him as a director at Core Natural Resources Inc., reflecting broader experience in corporate governance beyond the reinsurance industry.(

Written by Perplexity from public sources.