JNL Investors Series Trust

12/12/2025 | Press release | Distributed by Public on 12/12/2025 08:08

Prospectus by Investment Company (Form 497)

Supplement Dated December 12, 2025

To The Prospectus Dated April 28, 2025

JNL® Investors Series Trust

Effective December 31, 2025, for the JNL Government Money Market Fund, please change all references to the Bloomberg USD 1 Month Cash Deposit Index to the Bloomberg USD 1 Month Swap Rate Cash Deposit Index.

This Supplement is dated December 12, 2025.

Supplement Dated December 12, 2025

To The Statement of Additional Information Dated April 28, 2025

JNL® Investors Series Trust

Effective December 31, 2025, for the JNL Government Money Market Fund, please change all references to the Bloomberg USD 1 Month Cash Deposit Index to the Bloomberg USD 1 Month Swap Rate Cash Deposit Index.

This Supplement is dated December 12, 2025.

JNL Investors Series Trust published this content on December 12, 2025, and is solely responsible for the information contained herein. Distributed via Edgar on December 12, 2025 at 14:08 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]