SCHEDULE 13G/A 0000769317-23-000039 0000769317 XXXXXXXX LIVE 2 Common Stock 12/31/2024 0001462586 Western Asset Investment Grade Defined Opportunity Trust Inc. 95790A101 620 Eighth Avenue 47th Floor New York NY 10018 Rule 13d-1(b) Sit Investment Associates, Inc. b MN 164657.00 0.00 164657.00 0.00 164657.00 N 2.7 IA Western Asset Investment Grade Defined Opportunity Trust Inc. 620 Eighth Avenue, 47th Floor, New York, NY 10018 Sit Investment Associates, Inc. 80 South Eighth Street, Suite 3300 Minneapolis, MN 55402 Sit Investment Associates, Inc. Minnesota Corporation N IA The ownership percentages reported are based on 5,993,650 shares of common stock outstanding as of May 31, 2024, as reported in the Issuer's Report on Form N-CSRS filed with the Securities Exchange Commission, and adjusted for the shares redeemed pursuant to the tender offer dated October 1, 2024. Sit Investment Associates, Inc. ("SIA") is an investment adviser registered under section 203 of the Investment Advisers Act of 1940. SIA provides investment management services to client accounts ("Accounts"). In its role as investment adviser SIA possess voting and investment power over securities of the Issuer described in this schedule 13G owned by the Accounts and may be deemed to be the beneficial owner of such shares of the Issuer owned by the Accounts. All securities reported in this schedule 13G are owned by the Accounts. Pursuant to Rule 13d-4 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), SIA disclaims beneficial ownership of such securities. 2.7 164,657 0 164,657 0 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Sit Investment Associates, Inc. /s/ Paul E. Rasmussen 01/03/2025