Trustmark TRMK Institutional Ownership

Updated Oct 11, 2026

Trustmark Corp (NASDAQ:TRMK) appeared in the 13F filings of 290 institutional investors for the quarter ended June 30, 2026.

• Collectively, these holders controlled 80.10% of Trustmark's outstanding shares in Q2 2026, up from 78.80% in Q1 2026.
• Total holdings of Trustmark shares rose 1.03% from Q1 2026, and the number of holders rose 9.85% from Q2 2025.
• Of the 290 holders of TRMK in Q2 2026, 160 added to their positions, 73 reduced their stakes and 57 left their positions unchanged.
• Combined, institutional investors held 46.83Mn shares of TRMK as of Q2 2026, up 477.69K from the prior quarter and up 6.14Mn from a year earlier.
• BlackRock, Inc. held the largest position in TRMK at 8.61Mn shares as of June 30, 2026, or 14.72% of shares outstanding.
• The biggest increases in TRMK positions during Q2 2026 came from Millennium Management LLC (+899.81K shares), American Century Companies Inc (+429.14K shares), State Street Corp (+337.53K shares), BlackRock, Inc. (+303.86K shares) and Ameriprise Financial Inc (+259.79K shares).
• The biggest cuts to TRMK positions during Q2 2026 came from Wellington Management Group LLP (-1.76Mn shares), North Reef Capital Management LP (-387.38K shares), Two Sigma Investments, LP (-222.7K shares), Ignite Planners, LLC (-137.38K shares) and Bank of America Corp (-114.15K shares).
• Per Business Quant data, the 10 largest holders of Trustmark at the end of Q2 2026 were BlackRock, Inc. (8.61Mn shares), Dimensional Fund Advisors LP (3.94Mn shares), Vanguard Portfolio Management LLC (3.56Mn shares), State Street Corp (3.31Mn shares), Vanguard Capital Management LLC (2.54Mn shares), Earnest Partners LLC (2.44Mn shares), American Century Companies Inc (1.7Mn shares), Geode Capital Management, LLC (1.6Mn shares), North Reef Capital Management LP (1.57Mn shares) and Wellington Management Group LLP (1.53Mn shares).