4processed

Form 4 — Insider Transaction

CSG SYSTEMS INTERNATIONAL INC(CSGS)

Filing Date

May 14, 2026

Accepted

May 14, 2026

Accession No.

0001193125-26-229009

CIK

0001005757

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Song HaiyanOther22.6K$80.70Common StockMay 14, 2026