X0609 4 2026-05-29 false 0001488813 Customers Bancorp, Inc. CUBI 0001921890 Cunningham Lyle false 701 READING AVENUE WEST READING PA 19611 false true false false Chief Banking Officer false Common Stock 2026-05-29 2026-05-29 4 M false 5123.00 19.28 A 57768.00 D Common Stock 2026-05-29 2026-05-29 4 M false 10000.00 28.37 A 67768.00 D Common Stock 2026-05-29 2026-05-29 4 S false 47914.00 75.0282 D 19854.00 D Employee Stock Options (Right to buy) 28.37 2026-05-29 2026-05-29 4 M false 10000.00 28.37 A 2026-02-24 2031-02-24 Common Stock 10000.00 0.00 D Employee Stock Options (Right to buy) 19.28 2026-05-29 2026-05-29 4 M false 5123.00 19.28 A 2024-03-14 2029-03-14 Common Stock 5123.00 0.00 D Includes 19,815 Restricted Stock Units. This transaction was executed in multiple trades at prices ranging from $74.25 to $75.75. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transition was affected. /s/Lyle Cunningham by Andrew Sachs Under Power of Attorney 2026-06-01