SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE TO/A (AMENDMENT NO. 4) TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 (FINAL AMENDMENT) AND SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 24) Angeles Partners XI - -------------------------------------------------------------------------------- (Name of Subject Company (Issuer)) Apartment Investment and Management Company AIMCO-GP, Inc. Angeles Realty Corporation II AIMCO Properties, L.P. - -------------------------------------------------------------------------------- (Names of Filing Persons - Offerors) Limited Partnership Units - -------------------------------------------------------------------------------- (Title of Class Securities) None - -------------------------------------------------------------------------------- (CUSIP Number of Class Securities) Patrick J. Foye Apartment Investment and Management Company 4582 Ulster Street Parkway, Suite 1100 Denver, Colorado 80237 (303) 757-8101 - -------------------------------------------------------------------------------- (Name, address, and telephone numbers of person authorized to receive notices and communications on behalf of filing persons) Copy to: Joseph A. Coco Skadden, Arps, Slate, Meagher & Flom LLP Four Times Square New York, New York 10036 (212) 735-3000 and Jonathan L. Friedman Skadden, Arps, Slate, Meagher & Flom LLP 300 South Grand Avenue Los Angeles, California 90071 (213) 687-5000 1 Calculation of Filing Fee <Table> <Caption> Transaction valuation* Amount of filing fee - ---------------------- -------------------- $1,843,010.16 $ 149.10 </Table> * For purposes of calculating the fee only. This amount assumes the purchase of 14,683 units of limited partnership interest of the subject partnership for $125.52 per unit. The amount of the filing fee, calculated in accordance with Section 14(g)(1)(B)(3) and Rule 0-11(d) under the Securities Exchange Act of 1934, as amended, equals $80.90 per million of the aggregate amount of cash offered by the bidder. [X] Check the box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. Amount Previously Paid: $149.10 Filing Party: AIMCO Properties, L.P. Form or Registration No.: Schedule TO Date Filed: November 14, 2003 [ ] Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer. Check the appropriate boxes below to designate any transactions to which the statement relates: [X] third-party tender offer subject to Rule 14d-1 [ ] issuer tender offer subject to Rule 13e-4 [X] going-private transaction subject to Rule 13e-3 [X] amendment to Schedule 13D under Rule 13d-2 Check the following box if the filing is a final amendment reporting the results of the tender offer: [X] 2 CUSIP No. NONE 1. NAME OF REPORTING PERSONS: AIMCO PROPERTIES, L.P. S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only): 84-1275721 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. SOURCE OF FUNDS WC 5. (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)) [ ] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7. SOLE VOTING POWER -- 8. SHARED VOTING POWER 25,851 Units 9. SOLE DISPOSITIVE POWER -- 10. SHARED DISPOSITIVE POWER 25,851 Units 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 25,851 Units 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Approximately 65.24% 14. TYPE OF REPORTING PERSON PN 3 CUSIP No. NONE 1. NAME OF REPORTING PERSONS: AIMCO-GP, INC. S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only) 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. SOURCE OF FUNDS Not Applicable 5. (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)) [ ] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7. SOLE VOTING POWER -- 8. SHARED VOTING POWER 25,851 Units 9. SOLE DISPOSITIVE POWER -- 10. SHARED DISPOSITIVE POWER 25,851 Units 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 25,851 Units 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Approximately 65.24% 14. TYPE OF REPORTING PERSON CO 4 CUSIP No. NONE 1. NAME OF REPORTING PERSONS: APARTMENT INVESTMENT AND MANAGEMENT COMPANY S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only): 84-1259577 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. SOURCE OF FUNDS Not Applicable 5. (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)) [ ] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Maryland NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7. SOLE VOTING POWER -- 8. SHARED VOTING POWER 25,851 Units 9. SOLE DISPOSITIVE POWER -- 10. SHARED DISPOSITIVE POWER 25,851 Units 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 25,851 Units 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Approximately 65.24% 14. TYPE OF REPORTING PERSON CO 5 CUSIP No. NONE 1. NAME OF REPORTING PERSONS: INSIGNIA PROPERTIES, L.P. S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only): 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. SOURCE OF FUNDS Not Applicable 5. (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)) [ ] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7. SOLE VOTING POWER -- 8. SHARED VOTING POWER 8,862 Units 9. SOLE DISPOSITIVE POWER -- 10. SHARED DISPOSITIVE POWER 8,862 Units 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,862 Units 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Approximately 22.36% 14. TYPE OF REPORTING PERSON PN 6 CUSIP No. NONE 1. NAME OF REPORTING PERSONS: AIMCO/IPT, INC. S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only): 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. SOURCE OF FUNDS Not Applicable 5. (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)) [ ] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7. SOLE VOTING POWER -- 8. SHARED VOTING POWER 8,862 Units 9. SOLE DISPOSITIVE POWER -- 10. SHARED DISPOSITIVE POWER 8,862 Units 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,862 Units 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Approximately 22.36% 14. TYPE OF REPORTING PERSON CO 7 CUSIP No. NONE 1. NAME OF REPORTING PERSONS: COOPER RIVER PROPERTIES, L.L.C. S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only): 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. SOURCE OF FUNDS Not Applicable 5. (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)) [ ] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7. SOLE VOTING POWER -- 8. SHARED VOTING POWER 8,782 Units 9. SOLE DISPOSITIVE POWER -- 10. SHARED DISPOSITIVE POWER 8,782 Units 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,782 Units 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Approximately 22.16% 14. TYPE OF REPORTING PERSON OO 8 CUSIP No. NONE 1. NAME OF REPORTING PERSONS: AIMCO IPLP, L.P. S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only): 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. SOURCE OF FUNDS Not Applicable 5. (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)) [ ] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7. SOLE VOTING POWER -- 8. SHARED VOTING POWER 80 Units 9. SOLE DISPOSITIVE POWER -- 10. SHARED DISPOSITIVE POWER 80 Units 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 80 Units 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) Approximately 0.2% 14. TYPE OF REPORTING PERSON PN 9 AMENDMENT NO. 4 TO SCHEDULE TO/AMENDMENT NO. 24 TO SCHEDULE 13D This Statement constitutes (a) Amendment No. 4 to the Tender Offer Statement and Rule 13e-3 Transaction Statement on Schedule TO, as amended by Amendment No. 1, Amendment No. 2 and Amendment No. 3 thereto (the "Schedule TO"), filed by AIMCO Properties, L.P., AIMCO-GP, Inc., Apartment Investment and Management Company and Angeles Realty Corporation II relating to the offer by AIMCO Properties, L.P. to purchase units of limited partnership interest ("Units") of Angeles Partners XI, a California limited partnership (the "Partnership"), at a price of $125.52 per unit in cash, subject to the conditions set forth in the Litigation Settlement Offer dated November 14, 2003, and in the related Letter of Transmittal (which, together with the Revised Litigation Settlement Offer and any additional supplements or amendments, collectively constitute the "Offer"); and (b) Amendment No. 24 to the Schedule 13D filed by AIMCO Properties, L.P., AIMCO-GP, Inc., Apartment Investment and Management Company, Insignia Properties, L.P., AIMCO/IPT, Inc., Cooper River Properties, L.L.C. and AIMCO IPLP, L.P. (the "Schedule 13D"). Copies of the Litigation Settlement Offer and the Letter of Transmittal are filed as Exhibits (a)(1) and (a)(2), respectively, to the Schedule TO. The item numbers and responses thereto below are in accordance with the requirements of Schedule TO. Unless defined herein, capitalized terms used and not otherwise defined herein have the respective meanings ascribed to such terms in the Litigation Settlement Offer. ITEM 8. INTEREST IN SECURITIES OF THE SUBJECT COMPANY. At midnight, New York City time, on December 30, 2003, the offer expired pursuant to its terms. A total of 907 units, representing approximately 2.29% of the outstanding units, were validly tendered and not withdrawn pursuant to the offer. AIMCO Properties, L.P. has accepted for payment all of those units. 10 SIGNATURE After due inquiry and to the best of its knowledge and belief, the undersigned hereby certify that the information set forth in this statement is true, complete and correct. Date: January 9, 2004 AIMCO PROPERTIES, L.P. By: AIMCO-GP, INC. Its General Partner By: /s/ Patrick J. Foye ------------------------------- Patrick J. Foye Executive Vice President AIMCO-GP, INC. By: /s/ Patrick J. Foye ------------------------------- Patrick J. Foye Executive Vice President APARTMENT INVESTMENT AND MANAGEMENT COMPANY By: /s/ Patrick J. Foye ------------------------------- Patrick J. Foye Executive Vice President ANGELES REALTY CORPORATION II By: /s/ Patrick J. Foye ------------------------------- Patrick J. Foye Executive Vice President INSIGNIA PROPERTIES, L.P. By: AIMCO/IPT INC. Its General Partner By: /s/ Patrick J. Foye ------------------------ Patrick J. Foye Executive Vice President AIMCO/IPT INC. By: /s/ Patrick J. Foye ------------------------ Patrick J. Foye Executive Vice President COOPER RIVER PROPERTIES, L.L.C. By: /s/ Patrick J. Foye ------------------------ Patrick J. Foye Executive Vice President AIMCO IPLP, L.P. By: /s/ Patrick J. Foye ------------------------ Patrick J. Foye Executive Vice President 11