SCHEDULE 13D/A 0000769317-23-000075 0000769317 XXXXXXXX LIVE 9 Common Stock 09/11/2025 false 0001177161 27828A100 Eaton Vance California Municipal Bond Fund

ONE POST OFFICE SQUARE BOSTON MA 02109

Paul E. Rasmussen 612-359-2536 3300 IDS Center 80 South Eighth Street Minneapolis MN 55402-4130 0000769317 N Sit Investment Associates, Inc. b OO N MN 0.00 4069395.00 0.00 4069395.00 4069395.00 N 16.5 IA 0001053046 N Sit Fixed Income Advisors II, LLC b OO N DE 0.00 4069395.00 0.00 4069395.00 4069395.00 N 16.5 IA Common Stock Eaton Vance California Municipal Bond Fund ONE POST OFFICE SQUARE BOSTON MA 02109 This Amendment No. 9 ("Amendment") amends and supplements the statement on Schedule 13D filed on October 6, 2023, and amended by Amendment No. 1 on November 7, 2023; Amendment No. 2 on December 1, 2023; Amendment No. 3 on December 28, 2023; Amendment No. 4 on January 24, 2024; Amendment No. 5 on April 9, 2024, Amendment No. 6 on December 30, 2024, Amendment No. 7 on April 7, 2025; and Amendment No. 8 on June 13, 2025 (collectively, the "Original Schedule 13D" and, as amended by this Amendment, the "Schedule 13D"), relating to the shares of Common Stock ("Shares") of the Eaton Vance California Municipal Bond Fund (the "Issuer"). Except as specifically provided herein, each Item of the Original Schedule 13D remains unchanged. Capitalized terms used but not otherwise defined herein have the meanings set forth in the Original Schedule 13D. The aggregate percentage of Shares reported owned by Sit Entities herein is based upon 24,672,939 Shares outstanding as of Date, which is the total number of Shares outstanding as reported in the Issuer's Report on Form N-CSRS filed with the Securities Exchange Commission for the period ended March 31, 2025. As of the date hereof, the Sit Entities may be deemed to be the beneficial owner of 4,069,395 Shares held in client accounts which represent 16.5% of the Issuer's outstanding Shares. Each of the Sit Entities may be deemed to have shared power to vote and dispose of such Shares. However, none of SIA's or SFI's directors or executive officers own Shares directly Transactions in Shares by the Sit Entities in the last 60 days are set forth in Exhibit A. The clients of SIA and SFI have the right to participate in the receipt of dividends from, or proceeds from the sales of, the Shares held for their respective accounts. Not applicable. Exhibit A: Schedule of Transactions in Shares by Sit Entities in the last 60 days. Sit Investment Associates, Inc. /s/ Roger J. Sit 09/15/2025 Sit Fixed Income Advisors II, LLC /s/ Roger J. Sit 09/15/2025