Phillip D. Green - 25 Oct 2025 Form 4 Insider Report for CULLEN/FROST BANKERS, INC. (CFR)

Signature
/s/ Phillip D. Green, by Kirsten Irwin under POA
Issuer symbol
CFR
Transactions as of
25 Oct 2025
Net transactions value
-$545,139
Form type
4
Filing time
27 Oct 2025, 12:38:50 UTC
Previous filing
11 Feb 2025
Next filing
30 Oct 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
GREEN PHILLIP D Chairman and CEO, Director 111 WEST HOUSTON STREET, SAN ANTONIO /s/ Phillip D. Green, by Kirsten Irwin under POA 27 Oct 2025 0001128404

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CFR Common Stock, $0.01 par value Options Exercise $0 +11,097 +11% $0.000000 112,554 25 Oct 2025 Direct
transaction CFR Common Stock, $0.01 par value Tax liability $545,139 -4,366 -3.9% $124.86 108,188 25 Oct 2025 Direct
holding CFR Common Stock, $0.01 par value 370 25 Oct 2025 Through 401(k) Plan
holding CFR Common Stock, $0.01 par value 38,865 25 Oct 2025 Trusts for children F1
holding CFR Common Stock, $0.01 par value 1,100 25 Oct 2025 By Spouse

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CFR Restricted Stock Units Options Exercise $0 -11,097 -100% $0.000000 0 25 Oct 2025 Common Stock 11,097 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Some of Mr. Green's children are beneficiaries of trusts of which Mr. Green is a trustee.
F2 Each restricted stock unit represents the right to receive one share of Cullen/Frost common stock.
F3 Cliff vested three years from grant date of 10/25/2022.