Cullen/Frost Bankers Sees Surge in Institutional Investor Stake

Tudor Investment Corp ET AL increases its position in the Texas-based bank by 915% in Q3 2025.

Apr. 9, 2026 at 9:10am

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An extreme close-up of intricate, industrial-looking banking equipment and machinery, conveying the secure, institutional nature of Cullen/Frost Bankers' financial operations.The substantial investment in Cullen/Frost Bankers by a major hedge fund signals growing institutional confidence in the Texas bank's stability and growth potential.San Antonio Today

According to a recent SEC filing, Tudor Investment Corp ET AL significantly grew its stake in Cullen/Frost Bankers, Inc. (NYSE:CFR) during the third quarter of 2025, increasing its position by 915% to 43,036 shares. The move represents a major institutional investment in the Texas-based bank, which has operated in the state since 1868.

Why it matters

The substantial increase in Tudor Investment's position in Cullen/Frost Bankers suggests growing institutional confidence in the bank's performance and outlook. As one of the oldest banking organizations in Texas, Cullen/Frost's ability to attract significant investment from a major hedge fund like Tudor underscores its stability and potential for future growth.

The details

According to the SEC filing, Tudor Investment Corp ET AL now owns 0.07% of Cullen/Frost Bankers' outstanding shares, up from just 0.007% in the prior quarter. The hedge fund added 38,796 shares to its position during the three-month period. Several other major institutional investors, including Dimensional Fund Advisors, Bank of America, and Northern Trust, also increased their stakes in the bank during the quarter.

  • Tudor Investment Corp ET AL filed the 13F report disclosing the stake increase on April 9, 2026.
  • The hedge fund grew its Cullen/Frost Bankers position by 915% in the third quarter of 2025.

The players

Tudor Investment Corp ET AL

A prominent hedge fund that has significantly increased its stake in Cullen/Frost Bankers, one of the oldest banking organizations in Texas.

Cullen/Frost Bankers, Inc.

A Texas-based bank founded in 1868 that provides a range of commercial and consumer banking services throughout the state.

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The takeaway

The substantial investment by Tudor Investment Corp ET AL in Cullen/Frost Bankers suggests growing institutional confidence in the bank's long-term prospects, even as it navigates a competitive and evolving Texas banking landscape. The move highlights the enduring appeal of Cullen/Frost's community-focused approach and stable business model.