Exhibit (a)(15)

PIMCO INCOME STRATEGY FUND

NOTICE OF CHANGE OF TRUSTEES

WHEREAS, PIMCO Income Strategy Fund (the “Trust”) is organized as a trust under the laws of the Commonwealth of Massachusetts; and

WHEREAS, John C. Maney retired as a Trustee of the Trust, effective as of April 30, 2023;

NOW, THEREFORE, as a result of the foregoing Trustee retirement, the seven (7) Trustees of the Trust are:

Sarah E. Cogan	1633 Broadway
	New York, New York 10019
Deborah A. DeCotis	1633 Broadway
	New York, New York 10019
David N. Fisher	1633 Broadway New York, New York 10019
Joseph B. Kittredge, Jr.	1633 Broadway
	New York, New York 10019
Alan Rappaport	1633 Broadway
	New York, New York 10019
E. Grace Vandecruze	1633 Broadway
	New York, New York 10019
Kathleen A. McCartney	1633 Broadway New York, New York 10019

IN WITNESS WHEREOF, this Notice has been subscribed this 8^th day of May, 2023, by the undersigned who affirms that the statements made herein are true under the penalties of perjury.

/s/ Ryan Leshaw

Ryan Leshaw, Chief Legal Officer

Signature Page – PIMCO Income Strategy Fund (PFL)