8-K 1 mal04012_10501.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 25, 2005 MASTR ALTERNATIVE LOAN TRUST Mortgage Pass-Through Certificates, Series 2004-12 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-106982-52 54-2163788 Pooling and Servicing Agreement) (Commission 54-2163789 (State or other File Number) IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17 CFR 240.13e-4(c)) ITEM 8.01 Other Events On January 25, 2005 a distribution was made to holders of MASTR ALTERNATIVE LOAN TRUST, Mortgage Pass-Through Certificates, Series 2004-12 Trust. ITEM 9.01 Financial Statements and Exhibits (c) Exhibits Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-12 Trust, relating to the January 25, 2005 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MASTR ALTERNATIVE LOAN TRUST Mortgage Pass-Through Certificates, Series 2004-12 Trust (Registrant) By: Wells Fargo Bank, N.A. as Master Servicer By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 1/26/2005 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-12 Trust, relating to the January 25, 2005 distribution. EX-99.1

MASTR Alternative Loan Trust Mortgage Pass-Through Certificates Record Date: 1112/3031/042004 Distribution Date: 121/2725/042005 MASTR Alternative Loan Trust Mortgage Pass-Through Certificates Series 2004-12 Contact: Customer Service - CTSLink Wells Fargo Bank, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 Telephone: (301) 815-6600 Fax: (301) 815-6660 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution 1-A-1 576434YD0 SEN 4.50000% 22,~~500~~317,~~000~~184.0081 8483,~~375~~121.0097 ~~182~~169,~~815~~684.1906 1-AX 576434YU2 IO 4.50000% 0.00 9,~~262~~126.3023 0.00 2-A-1 576434YE8 SEN 6.50000% 5150,~~757~~544,~~000~~472.0026 ~~280~~273,~~350~~782.4256 1,~~212~~282,~~527~~100.7430 2-AX 576434YV0 IO 6.50000% 0.00 9,~~082~~076.5303 0.00 3-A-1 576434YF5 SEN 6.00000% 106,~~500~~343,~~000~~811.0037 ~~532~~531,~~500~~719.0006 ~~156~~1,~~188~~265,141.6338 3-AX 576434YW8 IO 6.00000% 0.00 10,~~482~~467.5104 0.00 4-A-1 576434YG3 SEN 5.50000% 33,~~135~~099,~~000~~537.0018 151,~~868~~706.7521 35181,~~462~~017.8209 4-AX 576434YX6 IO 5.50000% 0.00 4,~~599~~594.6981 0.00 5-A-1 576434YH1 SEN 2.~~55000~~81750% 24,~~341~~229,~~000~~625.0086 5156,~~724~~503.6239 ~~111~~759,~~374~~729.1453 5-A-2 576434YJ7 SEN 5.~~45000~~18250% 0.00 ~~110~~103,~~548~~932.7115 0.00 5-A-3 576434YK4 SEN 5.50000% 9796,~~364~~918,~~000~~503.0043 ~~446~~441,~~251~~197.6775 ~~445~~3,~~496~~038,918.5714 5-A-4 576434YL2 SEN 6.00000% 6,123,000.00 30,~~615~~407.0041 0.00 5-A-5 576434YM0 SEN 6.00000% 14,012,000.00 7069,~~060~~584.0094 0.00 5-A-6 576434YN8 SEN 6.00000% 1,000,000.00 54,~~000~~966.0010 0.00 6-A-1 576434YP3 SEN 8.00000% 5,~~070~~064,~~000~~015.0022 33,~~800~~531.0018 545,~~984~~955.7830 6-A-2 576434YQ1 SEN 5.25000% 50,~~700~~640,~~000~~152.0021 ~~221~~220,~~812~~048.5039 59459,~~847~~552.7996 6-A-3 576434YR9 SEN 5.50000% 6,925,000.00 31,~~739~~524.5837 0.00 6-A-4 576434YS7 SEN 5.50000% 7,466,000.00 3433,~~219~~987.1714 0.00 PO 576434YT5 PO 0.00000% 2,~~140~~129,~~939~~840.3584 0.00 1110,~~098~~023.5133 AX 576434YY4 IO 6.00000% 0.00 3332,~~338~~993.1195 0.00 A-LR 576434YZ1 SEN 4.50000% 500.00 0.1900 500.00 A-UR 576434ZA5 SEN 4.50000% 500.00 50.4623 500.00 B-1 576434ZB3 SUB 5.~~80143~~80165% 6,~~065~~059,~~000~~631.0021 29,~~321~~093.4071 5,~~368~~406.7953 B-2 576434ZC1 SUB 5.~~80143~~80165% 1,~~733~~731,~~000~~465.0093 8,~~378~~313.2317 1,~~534~~544.0785 B-3 576434ZD9 SUB 5.~~80143~~80165% ~~991~~990,~~000~~122.0076 4,~~791~~753.0281 ~~877~~883.2441 B-4 576434ZH0 SUB 5.~~80143~~80165% ~~866~~865,~~000~~233.0041 4,~~186~~154.7019 ~~766~~771.5998 B-5 576434ZJ6 SUB 5.~~80143~~80165% ~~619~~618,~~000~~452.0006 2,~~992~~969.5733 ~~547~~551.9480 B-6 576434ZK3 SUB 5.~~80143~~80165% 495,~~588~~149.3767 2,~~395~~377.9333 ~~438~~441.7078 B-I-1 576434ZE7 SUB 6.~~05975~~05977% 7,~~398~~391,~~000~~271.0095 37,~~358~~324.3653 6,~~728~~845.0572 B-I-2 576434ZF4 SUB 6.~~05975~~05977% 3,~~021~~018,~~000~~252.0058 15,~~255~~241.4261 2,~~747~~795.4248 B-I-3 576434ZG2 SUB 6.~~05975~~05977% 1,~~876~~874,~~000~~293.0089 9,~~473~~464.4183 1,~~706~~735.1195 B-I-4 576434ZL1 SUB 6.~~05975~~05977% 1,~~354~~352,~~000~~768.0062 6,~~837~~831.4223 1,~~231~~252.3892 B-I-5 576434ZM9 SUB 6.~~05975~~05977% 1,~~355~~353,~~000~~767.0071 6,~~842~~836.4727 1,~~232~~253.2985 B-I-6 576434ZN7 SUB 6.~~05975~~05977% 1,~~146~~145,~~310~~268.6010 5,~~788~~783.6339 1,~~042~~060.5073 P 576434ZP2 PPAY 0.00000% 0.02 014,121.0011 0.00 Totals ~~455~~453,~~953~~708,~~938~~821.3409 2,~~285~~279,~~257~~535.7742 27,~~245~~236,~~117~~667.2509

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses 1-A-1 0.00 22,~~317~~147,~~184~~500.8176 ~~267~~252,~~190~~806.1903 0.00 1-AX 0.00 0.00 9,~~262~~126.3023 0.00 2-A-1 0.00 5049,~~544~~262,~~472~~371.2696 1,~~492~~555,~~878~~882.1686 0.00 2-AX 0.00 0.00 9,~~082~~076.5303 0.00 3-A-1 0.00 ~~106~~105,~~343~~078,~~811~~669.3799 ~~688~~1,~~688~~796,860.6344 0.00 3-AX 0.00 0.00 10,~~482~~467.5104 0.00 4-A-1 0.00 3332,~~099~~918,~~537~~520.1809 ~~187~~332,~~331~~723.5730 0.00 4-AX 0.00 0.00 4,~~599~~594.6981 0.00 5-A-1 0.00 2423,~~229~~469,~~625~~896.8632 ~~163~~816,~~098~~232.7692 0.00 5-A-2 0.00 0.00 ~~110~~103,~~548~~932.7115 0.00 5-A-3 0.00 9693,~~918~~879,~~503~~585.4329 ~~891~~3,~~748~~480,115.2489 0.00 5-A-4 0.00 6,123,000.00 30,~~615~~407.0041 0.00 5-A-5 0.00 14,012,000.00 7069,~~060~~584.0094 0.00 5-A-6 0.00 1,000,000.00 54,~~000~~966.0010 0.00 6-A-1 0.00 5,~~064~~018,~~015~~059.2292 3979,~~784~~486.7848 0.00 6-A-2 0.00 50,~~640~~180,~~152~~599.2125 ~~281~~679,~~660~~601.2935 0.00 6-A-3 0.00 6,925,000.00 31,~~739~~524.5837 0.00 6-A-4 0.00 7,466,000.00 3433,~~219~~987.1714 0.00 PO 0.00 2,~~129~~119,~~840~~817.8451 1110,~~098~~023.5133 0.00 AX 0.00 0.00 3332,~~338~~993.1195 0.00 A-LR 0.00 0.00 500.1900 0.00 A-UR 0.00 0.00 550.4623 0.00 B-1 0.00 6,~~059~~054,~~631~~224.2168 34,~~690~~500.1924 0.00 B-2 0.00 1,~~731~~729,~~465~~921.9308 9,~~912~~858.3002 0.00 B-3 0.00 ~~990~~989,~~122~~239.7635 5,~~668~~637.2622 0.00 B-4 0.00 ~~865~~864,~~233~~461.4143 4,~~953~~926.2917 0.00 B-5 0.00 ~~618~~617,~~452~~900.0626 3,~~540~~521.5113 0.00 B-6 0.00 ~~495~~494,~~149~~707.6789 2,~~834~~819.6311 0.00 B-I-1 0.00 7,~~391~~384,~~271~~426.9522 44,~~086~~170.4125 0.00 B-I-2 0.00 3,~~018~~015,~~252~~457.5810 18,~~002~~037.8409 0.00 B-I-3 0.00 1,~~874~~872,~~293~~557.8993 11,~~179~~200.5278 0.00 B-I-4 0.00 1,~~352~~351,~~768~~515.6269 8,~~068~~084.8015 0.00 B-I-5 0.00 1,~~353~~352,~~767~~513.7186 8,~~074~~090.7612 0.00 B-I-6 0.00 1,~~145~~144,~~268~~207.1036 6,~~831~~844.1312 0.00 P 0.00 0.02 014,121.0011 0.00 Totals 0.00 ~~453~~446,~~708~~472,~~821~~153.0996 49,~~530~~516,~~375~~202.0251 0.00 All distributions required by the Pooling and Servicing Agreement have been calculated by the Certificate Administrator on behalf of the Trustee.

Principal Distribution Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Realized Class Amount Balance Distribution Distribution Accretion Loss (1) 1-A-1 22,500,000.00 22,~~500~~317,~~000~~184.0081 ~~154~~155,~~800~~678.5835 2814,~~014~~005.6170 0.00 0.00 1-AX 0.00 0.00 0.00 0.00 0.00 0.00 2-A-1 51,757,000.00 5150,~~757~~544,~~000~~472.0026 4243,~~343~~499.2199 1,~~170~~238,~~184~~600.5431 0.00 0.00 2-AX 0.00 0.00 0.00 0.00 0.00 0.00 3-A-1 106,500,000.00 106,~~500~~343,~~000~~811.0037 9798,~~975~~473.4916 581,~~213~~166,668.1522 0.00 0.00 3-AX 0.00 0.00 0.00 0.00 0.00 0.00 4-A-1 33,135,000.00 33,~~135~~099,~~000~~537.0018 34,~~174~~347.4899 1146,~~288~~669.3410 0.00 0.00 4-AX 0.00 0.00 0.00 0.00 0.00 0.00 5-A-1 24,341,000.00 24,~~341~~229,~~000~~625.0086 18,~~536~~637.4161 92741,~~837~~091.7493 0.00 0.00 5-A-2 0.00 0.00 0.00 0.00 0.00 0.00 5-A-3 97,364,000.00 9796,~~364~~918,~~000~~503.0043 74,~~145~~550.6342 ~~371~~2,~~350~~964,367.9571 0.00 0.00 5-A-4 6,123,000.00 6,123,000.00 0.00 0.00 0.00 0.00 5-A-5 14,012,000.00 14,012,000.00 0.00 0.00 0.00 0.00 5-A-6 1,000,000.00 1,000,000.00 0.00 0.00 0.00 0.00 6-A-1 5,070,000.00 5,~~070~~064,~~000~~015.0022 5,~~813~~842.6024 ~~171~~40,113.1805 0.00 0.00 6-A-2 50,700,000.00 50,~~700~~640,~~000~~152.0021 58,~~136~~422.0144 1401,~~711~~130.7852 0.00 0.00 6-A-3 6,925,000.00 6,925,000.00 0.00 0.00 0.00 0.00 6-A-4 7,466,000.00 7,466,000.00 0.00 0.00 0.00 0.00 PO 2,140,939.35 2,~~140~~129,~~939~~840.3584 12,~~994~~030.2932 97,~~104~~993.2201 0.00 0.00 AX 0.00 0.00 0.00 0.00 0.00 0.00 A-LR 50.00 500.00 420.3400 70.6600 0.00 0.00 A-UR 50.00 500.00 420.3400 70.6600 0.00 0.00 B-1 6,065,000.00 6,~~065~~059,~~000~~631.0021 5,~~368~~406.7953 0.00 0.00 0.00 B-2 1,733,000.00 1,~~733~~731,~~000~~465.0093 1,~~534~~544.0785 0.00 0.00 0.00 B-3 991,000.00 ~~991~~990,~~000~~122.0076 ~~877~~883.2441 0.00 0.00 0.00 B-4 866,000.00 ~~866~~865,~~000~~233.0041 ~~766~~771.5998 0.00 0.00 0.00 B-5 619,000.00 ~~619~~618,~~000~~452.0006 ~~547~~551.9480 0.00 0.00 0.00 B-6 495,588.37 495,~~588~~149.3767 ~~438~~441.7078 0.00 0.00 0.00 B-I-1 7,398,000.00 7,~~398~~391,~~000~~271.0095 6,~~728~~845.0572 0.00 0.00 0.00 B-I-2 3,021,000.00 3,~~021~~018,~~000~~252.0058 2,~~747~~795.4248 0.00 0.00 0.00 B-I-3 1,876,000.00 1,~~876~~874,~~000~~293.0089 1,~~706~~735.1195 0.00 0.00 0.00 B-I-4 1,354,000.00 1,~~354~~352,~~000~~768.0062 1,~~231~~252.3892 0.00 0.00 0.00 B-I-5 1,355,000.00 1,~~355~~353,~~000~~767.0071 1,~~232~~253.2985 0.00 0.00 0.00 B-I-6 1,146,310.60 1,~~146~~145,~~310~~268.6010 1,~~042~~060.5073 0.00 0.00 0.00 Totals 455,953,938.32 ~~455~~453,~~953~~708,~~938~~821.3207 ~~512~~516,~~225~~027.4652 16,~~732~~720,~~891~~639.8355 0.00 0.00 (1) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Principal Distribution Statement (continued) Total Ending Ending Total Principal Certificate Certificate Principal Class Reduction Balance Percentage Distribution 1-A-1 ~~182~~169,~~815~~684.1906 22,~~317~~147,~~184~~500.8176 0.~~99187488~~98433337 ~~182~~169,~~815~~684.1906 1-AX 0.00 0.00 0.00000000 0.00 2-A-1 1,~~212~~282,~~527~~100.7430 5049,~~544~~262,~~472~~371.2696 0.~~97657268~~95180115 1,~~212~~282,~~527~~100.7430 2-AX 0.00 0.00 0.00000000 0.00 3-A-1 ~~156~~1,~~188~~265,141.6338 ~~106~~105,~~343~~078,~~811~~669.3799 0.~~99853344~~98665418 ~~156~~1,~~188~~265,141.6338 3-AX 0.00 0.00 0.00000000 0.00 4-A-1 35181,~~462~~017.8209 3332,~~099~~918,~~537~~520.1809 0.~~99892975~~99346673 35181,~~462~~017.8209 4-AX 0.00 0.00 0.00000000 0.00 5-A-1 ~~111~~759,~~374~~729.1453 2423,~~229~~469,~~625~~896.8632 0.~~99542442~~96421249 ~~111~~759,~~374~~729.1453 5-A-2 0.00 0.00 0.00000000 0.00 5-A-3 ~~445~~3,~~496~~038,918.5714 9693,~~918~~879,~~503~~585.4329 0.~~99542442~~96421249 ~~445~~3,~~496~~038,918.5714 5-A-4 0.00 6,123,000.00 1.00000000 0.00 5-A-5 0.00 14,012,000.00 1.00000000 0.00 5-A-6 0.00 1,000,000.00 1.00000000 0.00 6-A-1 545,~~984~~955.7830 5,~~064~~018,~~015~~059.2292 0.~~99881957~~98975541 545,~~984~~955.7830 6-A-2 59459,~~847~~552.7996 50,~~640~~180,~~152~~599.2125 0.~~99881957~~98975541 59459,~~847~~552.7996 6-A-3 0.00 6,925,000.00 1.00000000 0.00 6-A-4 0.00 7,466,000.00 1.00000000 0.00 PO 1110,~~098~~023.5133 2,~~129~~119,~~840~~817.8451 0.~~99481606~~99013431 1110,~~098~~023.5133 AX 0.00 0.00 0.00000000 0.00 A-LR 500.00 0.00 0.00000000 500.00 A-UR 500.00 0.00 0.00000000 500.00 B-1 5,~~368~~406.7953 6,~~059~~054,~~631~~224.2168 0.~~99911479~~99822336 5,~~368~~406.7953 B-2 1,~~534~~544.0785 1,~~731~~729,~~465~~921.9308 0.~~99911479~~99822336 1,~~534~~544.0785 B-3 ~~877~~883.2441 ~~990~~989,~~122~~239.7635 0.~~99911479~~99822336 ~~877~~883.2441 B-4 ~~766~~771.5998 ~~865~~864,~~233~~461.4143 0.~~99911479~~99822336 ~~766~~771.5998 B-5 ~~547~~551.9480 ~~618~~617,~~452~~900.0626 0.~~99911480~~99822336 ~~547~~551.9480 B-6 ~~438~~441.7078 ~~495~~494,~~149~~707.6789 0.~~99911479~~99822336 ~~438~~441.7078 B-I-1 6,~~728~~845.0572 7,~~391~~384,~~271~~426.9522 0.~~99909056~~99816521 6,~~728~~845.0572 B-I-2 2,~~747~~795.4248 3,~~018~~015,~~252~~457.5810 0.~~99909056~~99816521 2,~~747~~795.4248 B-I-3 1,~~706~~735.1195 1,~~874~~872,~~293~~557.8993 0.~~99909056~~99816521 1,~~706~~735.1195 B-I-4 1,~~231~~252.3892 1,~~352~~351,~~768~~515.6269 0.~~99909056~~99816521 1,~~231~~252.3892 B-I-5 1,~~232~~253.2985 1,~~353~~352,~~767~~513.7186 0.~~99909056~~99816521 1,~~232~~253.2985 B-I-6 1,~~042~~060.5073 1,~~145~~144,~~268~~207.1036 0.~~99909056~~99816521 1,~~042~~060.5073 Totals 27,~~245~~236,~~117~~667.2509 ~~453~~446,~~708~~472,~~821~~153.0794 0.~~99507600~~97920451 27,~~245~~236,~~117~~667.2509

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion 1-A-1 22,500,000.00 ~~1000~~991.~~00000000~~87488044 6.~~88002578~~91903778 10.~~24509378~~62247556 0.00000000 1-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 51,757,000.00 ~~1000~~976.~~00000000~~57268118 0.~~81811562~~84046583 2223.~~60920339~~93106845 0.00000000 2-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 3-A-1 106,500,000.00 ~~1000~~998.~~00000000~~53344009 0.~~91995765~~92463061 010.~~54660235~~95463117 0.00000000 3-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 4-A-1 33,135,000.00 ~~1000~~998.~~00000000~~92974740 1.~~03137106~~03660751 04.~~03888155~~42641014 0.00000000 4-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 5-A-1 24,341,000.00 ~~1000~~995.~~00000000~~42442217 0.~~76153034~~76568793 330.~~81404790~~44624009 0.00000000 5-A-2 0.00 0.00000000 0.00000000 0.00000000 0.00000000 5-A-3 97,364,000.00 ~~1000~~995.~~00000000~~42442207 0.~~76153024~~76568773 330.~~81404780~~44623999 0.00000000 5-A-4 6,123,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 5-A-5 14,012,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 5-A-6 1,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 6-A-1 5,070,000.00 ~~1000~~998.~~00000000~~81957002 1.~~14666667~~15231558 07.~~03376331~~91184418 0.00000000 6-A-2 50,700,000.00 ~~1000~~998.~~00000000~~81957022 1.~~14666686~~15231637 07.~~03376292~~91184458 0.00000000 6-A-3 6,925,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 6-A-4 7,466,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 PO 2,140,939.35 ~~1000~~994.~~00000000~~81605586 0.~~93150233~~94833139 43.~~25244181~~73341263 0.00000000 AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 50.00 ~~1000~~0.00000000 ~~846~~0.~~80000000~~00000000 ~~153~~0.~~20000000~~00000000 0.00000000 A-UR 50.00 ~~1000~~0.00000000 ~~846~~0.~~80000000~~00000000 ~~153~~0.~~20000000~~00000000 0.00000000 B-1 6,065,000.00 ~~1000~~999.~~00000000~~11479143 0.~~88520857~~89143116 0.00000000 0.00000000 B-2 1,733,000.00 ~~1000~~999.~~00000000~~11478938 0.~~88521062~~89143104 0.00000000 0.00000000 B-3 991,000.00 ~~1000~~999.~~00000000~~11479314 0.~~88520686~~89143290 0.00000000 0.00000000 B-4 866,000.00 ~~1000~~999.~~00000000~~11479215 0.~~88520785~~89143187 0.00000000 0.00000000 B-5 619,000.00 ~~1000~~999.~~00000000~~11479806 0.~~88520194~~89143780 0.00000000 0.00000000 B-6 495,588.37 ~~1000~~999.~~00000000~~11478956 0.~~88521044~~89142528 0.00000000 0.00000000 B-I-1 7,398,000.00 ~~1000~~999.~~00000000~~09055826 0.~~90944174~~92534739 0.00000000 0.00000000 B-I-2 3,021,000.00 ~~1000~~999.~~00000000~~09055942 0.~~90944058~~92534922 0.00000000 0.00000000 B-I-3 1,876,000.00 ~~1000~~999.~~00000000~~09055970 0.~~90944030~~92534648 0.00000000 0.00000000 B-I-4 1,354,000.00 ~~1000~~999.~~00000000~~09056130 0.~~90943870~~92534712 0.00000000 0.00000000 B-I-5 1,355,000.00 ~~1000~~999.~~00000000~~09056089 0.~~90943911~~92535055 0.00000000 0.00000000 B-I-6 1,146,310.60 ~~1000~~999.~~00000000~~09056062 0.~~90943938~~92534257 0.00000000 0.00000000 P 0.02 0.00000000 0.00000000 0.00000000 0.00000000 (2) All Classes are per $1,000 Denomination.

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution 1-A-1 0.00000000 87.~~12511956~~54151378 ~~991~~984.~~87488044~~33336711 0.~~99187488~~98433337 87.~~12511956~~54151378 1-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 0.00000000 2324.~~42731882~~77153429 ~~976~~951.~~57268118~~80114690 0.~~97657268~~95180115 2324.~~42731882~~77153429 2-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3-A-1 0.00000000 111.~~46655991~~87926178 ~~998~~986.~~53344009~~65417831 0.~~99853344~~98665418 111.~~46655991~~87926178 3-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 4-A-1 0.00000000 15.~~07025260~~46301766 ~~998~~993.~~92974740~~46672974 0.~~99892975~~99346673 15.~~07025260~~46301766 4-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 5-A-1 0.00000000 431.~~57557783~~21192761 ~~995~~964.~~42442217~~21249415 0.~~99542442~~96421249 431.~~57557783~~21192761 5-A-2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 5-A-3 0.00000000 431.~~57557793~~21192782 ~~995~~964.~~42442207~~21249425 0.~~99542442~~96421249 431.~~57557793~~21192782 5-A-4 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 5-A-5 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 5-A-6 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 6-A-1 0.00000000 19.~~18042998~~06416174 ~~998~~989.~~81957002~~75540828 0.~~99881957~~98975541 19.~~18042998~~06416174 6-A-2 0.00000000 19.~~18042978~~06416095 ~~998~~989.~~81957022~~75540927 0.~~99881957~~98975541 19.~~18042978~~06416095 6-A-3 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 6-A-4 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 PO 0.00000000 54.~~18394414~~68174402 ~~994~~990.~~81605586~~13431184 0.~~99481606~~99013431 54.~~18394414~~68174402 AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 0.00000000 ~~1,000~~0.00000000 0.00000000 0.00000000 ~~1,000~~0.00000000 A-UR 0.00000000 ~~1,000~~0.00000000 0.00000000 0.00000000 ~~1,000~~0.00000000 B-1 0.00000000 0.~~88520857~~89143116 ~~999~~998.~~11479143~~22336026 0.~~99911479~~99822336 0.~~88520857~~89143116 B-2 0.00000000 0.~~88521062~~89143104 ~~999~~998.~~11478938~~22335834 0.~~99911479~~99822336 0.~~88521062~~89143104 B-3 0.00000000 0.~~88520686~~89143290 ~~999~~998.~~11479314~~22336024 0.~~99911479~~99822336 0.~~88520686~~89143290 B-4 0.00000000 0.~~88520785~~89143187 ~~999~~998.~~11479215~~22336028 0.~~99911479~~99822336 0.~~88520785~~89143187 B-5 0.00000000 0.~~88520194~~89143780 ~~999~~998.~~11479806~~22336026 0.~~99911480~~99822336 0.~~88520194~~89143780 B-6 0.00000000 0.~~88521044~~89142528 ~~999~~998.~~11478956~~22336428 0.~~99911479~~99822336 0.~~88521044~~89142528 B-I-1 0.00000000 0.~~90944174~~92534739 ~~999~~998.~~09055826~~16520952 0.~~99909056~~99816521 0.~~90944174~~92534739 B-I-2 0.00000000 0.~~90944058~~92534922 ~~999~~998.~~09055942~~16521020 0.~~99909056~~99816521 0.~~90944058~~92534922 B-I-3 0.00000000 0.~~90944030~~92534648 ~~999~~998.~~09055970~~16520789 0.~~99909056~~99816521 0.~~90944030~~92534648 B-I-4 0.00000000 0.~~90943870~~92534712 ~~999~~998.~~09056130~~16520679 0.~~99909056~~99816521 0.~~90943870~~92534712 B-I-5 0.00000000 0.~~90943911~~92535055 ~~999~~998.~~09056089~~16521033 0.~~99909056~~99816521 0.~~90943911~~92535055 B-I-6 0.00000000 0.~~90943938~~92534257 ~~999~~998.~~09056062~~16520932 0.~~99909056~~99816521 0.~~90943938~~92534257 P 0.00000000 0.00000000 0.00000000 1.00000000 0.00000000 (3) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall 1-A-1 22,500,000.00 4.50000% 22,~~500~~317,~~000~~184.0081 8483,~~375~~689.0044 0.00 0.00 1-AX 0.00 4.50000% 2,~~469~~450,~~946~~275.3913 9,~~262~~188.3053 0.00 0.00 2-A-1 51,757,000.00 6.50000% 5150,~~757~~544,~~000~~472.0026 ~~280~~273,~~350~~782.4256 0.00 0.00 2-AX 0.00 6.50000% 1,~~676~~675,~~775~~575.2850 9,~~082~~076.5303 0.00 0.00 3-A-1 106,500,000.00 6.00000% 106,~~500~~343,~~000~~811.0037 ~~532~~531,~~500~~719.0006 0.00 0.00 3-AX 0.00 6.00000% 2,~~096~~093,~~501~~408.2305 10,~~482~~467.5104 0.00 0.00 4-A-1 33,135,000.00 5.50000% 33,~~135~~099,~~000~~537.0018 151,~~868~~706.7521 0.00 0.00 4-AX 0.00 5.50000% 1,~~003~~002,~~568~~503.8662 4,~~599~~594.6981 0.00 0.00 5-A-1 24,341,000.00 2.~~55000~~81750% 24,~~341~~229,~~000~~625.0086 5156,~~724~~889.6214 0.00 0.00 5-A-2 0.00 5.~~45000~~18250% 24,~~341~~229,~~000~~625.0086 ~~110~~104,~~548~~641.7170 0.00 0.00 5-A-3 97,364,000.00 5.50000% 9796,~~364~~918,~~000~~503.0043 ~~446~~444,~~251~~209.6781 0.00 0.00 5-A-4 6,123,000.00 6.00000% 6,123,000.00 30,615.00 0.00 0.00 5-A-5 14,012,000.00 6.00000% 14,012,000.00 70,060.00 0.00 0.00 5-A-6 1,000,000.00 6.00000% 1,000,000.00 5,000.00 0.00 0.00 6-A-1 5,070,000.00 8.00000% 5,~~070~~064,~~000~~015.0022 33,~~800~~760.0010 0.00 0.00 6-A-2 50,700,000.00 5.25000% 50,~~700~~640,~~000~~152.0021 221,~~812~~550.5067 0.00 0.00 6-A-3 6,925,000.00 5.50000% 6,925,000.00 31,739.58 0.00 0.00 6-A-4 7,466,000.00 5.50000% 7,466,000.00 34,219.17 0.00 0.00 PO 2,140,939.35 0.00000% 2,~~140~~129,~~939~~840.3584 0.00 0.00 0.00 AX 0.00 6.00000% 6,~~667~~643,~~621~~839.6369 33,~~338~~219.1120 0.00 0.00 A-LR 50.00 4.50000% 500.00 0.1900 0.00 0.00 A-UR 50.00 4.50000% 500.00 0.1900 0.00 0.00 B-1 6,065,000.00 5.~~80143~~80165% 6,~~065~~059,~~000~~631.0021 29,~~321~~296.4057 0.00 0.00 B-2 1,733,000.00 5.~~80143~~80165% 1,~~733~~731,~~000~~465.0093 8,~~378~~371.2314 0.00 0.00 B-3 991,000.00 5.~~80143~~80165% ~~991~~990,~~000~~122.0076 4,~~791~~786.0296 0.00 0.00 B-4 866,000.00 5.~~80143~~80165% ~~866~~865,~~000~~233.0041 4,~~186~~183.7015 0.00 0.00 B-5 619,000.00 5.~~80143~~80165% ~~619~~618,~~000~~452.0006 2,~~992~~990.5704 0.00 0.00 B-6 495,588.37 5.~~80143~~80165% 495,~~588~~149.3767 2,~~395~~393.9391 0.00 0.00 B-I-1 7,398,000.00 6.~~05975~~05977% 7,~~398~~391,~~000~~271.0095 37,~~358~~324.3653 0.00 0.00 B-I-2 3,021,000.00 6.~~05975~~05977% 3,~~021~~018,~~000~~252.0058 15,~~255~~241.4261 0.00 0.00 B-I-3 1,876,000.00 6.~~05975~~05977% 1,~~876~~874,~~000~~293.0089 9,~~473~~464.4183 0.00 0.00 B-I-4 1,354,000.00 6.~~05975~~05977% 1,~~354~~352,~~000~~768.0062 6,~~837~~831.4223 0.00 0.00 B-I-5 1,355,000.00 6.~~05975~~05977% 1,~~355~~353,~~000~~767.0071 6,~~842~~836.4727 0.00 0.00 B-I-6 1,146,310.60 6.~~05975~~05977% 1,~~146~~145,~~310~~268.6010 5,~~788~~783.6339 0.00 0.00 P 0.02 0.00000% 0.02 0.00 0.00 0.00 Totals 455,953,938.34 2,~~285~~273,~~252~~631.5068 0.00 0.00

Interest Distribution Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (4) Distribution Shortfall Balance 1-A-1 0567.0047 0.00 8483,~~375~~121.0097 0.00 22,~~317~~147,~~184~~500.8176 1-AX 062.0030 0.00 9,~~262~~126.3023 0.00 2,~~450~~431,~~275~~776.1345 2-A-1 0.00 0.00 ~~280~~273,~~350~~782.4256 0.00 5049,~~544~~262,~~472~~371.2696 2-AX 0.00 0.00 9,~~082~~076.5303 0.00 1,~~675~~614,~~575~~217.5086 3-A-1 0.00 0.00 ~~532~~531,~~500~~719.0006 0.00 ~~106~~105,~~343~~078,~~811~~669.3799 3-AX 0.00 0.00 10,~~482~~467.5104 0.00 2,~~093~~077,~~408~~830.0590 4-A-1 0.00 0.00 151,~~868~~706.7521 0.00 3332,~~099~~918,~~537~~520.1809 4-AX 0.00 0.00 4,~~599~~594.6981 0.00 1994,~~002,503~~898.6214 5-A-1 0385.0075 0.00 5156,~~724~~503.6239 0.00 2423,~~229~~469,~~625~~896.8632 5-A-2 0709.0055 0.00 ~~110~~103,~~548~~932.7115 0.00 2423,~~229~~469,~~625~~896.8632 5-A-3 03,012.0006 0.00 ~~446~~441,~~251~~197.6775 0.00 9693,~~918~~879,~~503~~585.4329 5-A-4 0207.0059 0.00 30,~~615~~407.0041 0.00 6,123,000.00 5-A-5 0475.0006 0.00 7069,~~060~~584.0094 0.00 14,012,000.00 5-A-6 033.0090 0.00 54,~~000~~966.0010 0.00 1,000,000.00 6-A-1 0228.0092 0.00 33,~~800~~531.0018 0.00 5,~~064~~018,~~015~~059.2292 6-A-2 01,502.0027 0.00 ~~221~~220,~~812~~048.5039 0.00 50,~~640~~180,~~152~~599.2125 6-A-3 0215.0022 0.00 31,~~739~~524.5837 0.00 6,925,000.00 6-A-4 0232.0003 0.00 3433,~~219~~987.1714 0.00 7,466,000.00 PO 0.00 0.00 0.00 0.00 2,~~129~~119,~~840~~817.8451 AX 0225.0025 0.00 3332,~~338~~993.1195 0.00 6,~~643~~455,~~839~~939.6989 A-LR 0.00 0.00 0.1900 0.00 0.00 A-UR 0.00 0.00 50.4623 0.00 0.00 B-1 0202.0086 0.00 29,~~321~~093.4071 0.00 6,~~059~~054,~~631~~224.2168 B-2 057.0096 0.00 8,~~378~~313.2317 0.00 1,~~731~~729,~~465~~921.9308 B-3 033.0015 0.00 4,~~791~~753.0281 0.00 ~~990~~989,~~122~~239.7635 B-4 028.0097 0.00 4,~~186~~154.7019 0.00 ~~865~~864,~~233~~461.4143 B-5 020.0070 0.00 2,~~992~~969.5733 0.00 ~~618~~617,~~452~~900.0626 B-6 016.0058 0.00 2,~~395~~377.9333 0.00 ~~495~~494,~~149~~707.6789 B-I-1 0.00 0.00 37,~~358~~324.3653 0.00 7,~~391~~384,~~271~~426.9522 B-I-2 0.00 0.00 15,~~255~~241.4261 0.00 3,~~018~~015,~~252~~457.5810 B-I-3 0.00 0.00 9,~~473~~464.4183 0.00 1,~~874~~872,~~293~~557.8993 B-I-4 0.00 0.00 6,~~837~~831.4223 0.00 1,~~352~~351,~~768~~515.6269 B-I-5 0.00 0.00 6,~~842~~836.4727 0.00 1,~~353~~352,~~767~~513.7186 B-I-6 0.00 0.00 5,~~788~~783.6339 0.00 1,~~145~~144,~~268~~207.1036 P 0.00 0.00 014,121.0011 0.00 0.02 Totals 08,217.0059 0.00 2,~~285~~279,~~257~~535.7742 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Factors Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class (5) Amount Rate Balance Interest Shortfall Shortfall 1-A-1 22,500,000.00 4.50000% ~~1000~~991.~~00000000~~87488044 3.~~75000000~~71953067 0.00000000 0.00000000 1-AX 0.00 4.50000% ~~1000~~992.~~00000000~~03575427 3.~~75000042~~72013338 0.00000000 0.00000000 2-A-1 51,757,000.00 6.50000% ~~1000~~976.~~00000000~~57268118 5.~~41666673~~28976873 0.00000000 0.00000000 2-AX 0.00 6.50000% ~~1000~~999.~~00000000~~28447180 5.~~41666502~~41278853 0.00000000 0.00000000 3-A-1 106,500,000.00 6.00000% ~~1000~~998.~~00000000~~53344009 54.~~00000000~~99266723 0.00000000 0.00000000 3-AX 0.00 6.00000% ~~1000~~998.~~00000000~~52459901 54.~~00000184~~99262288 0.00000000 0.00000000 4-A-1 33,135,000.00 5.50000% ~~1000~~998.~~00000000~~92974740 4.~~58333333~~57842795 0.00000000 0.00000000 4-AX 0.00 5.50000% ~~1000~~998.~~00000000~~93854817 4.~~58333273~~57847008 0.00000000 0.00000000 5-A-1 24,341,000.00 2.~~55000~~81750% ~~1000~~995.~~00000000~~42442217 2.~~12499979~~33717349 0.00000000 0.00000000 5-A-2 0.00 5.~~45000~~18250% ~~1000~~995.~~00000000~~42442217 4.~~54166674~~29898936 0.00000000 0.00000000 5-A-3 97,364,000.00 5.50000% ~~1000~~995.~~00000000~~42442207 4.~~58333337~~56236196 0.00000000 0.00000000 5-A-4 6,123,000.00 6.00000% 1000.00000000 5.00000000 0.00000000 0.00000000 5-A-5 14,012,000.00 6.00000% 1000.00000000 5.00000000 0.00000000 0.00000000 5-A-6 1,000,000.00 6.00000% 1000.00000000 5.00000000 0.00000000 0.00000000 6-A-1 5,070,000.00 8.00000% ~~1000~~998.~~00000000~~81957002 6.~~66666667~~65879684 0.00000000 0.00000000 6-A-2 50,700,000.00 5.25000% ~~1000~~998.~~00000000~~81957022 4.~~37500000~~36983570 0.00000000 0.00000000 6-A-3 6,925,000.00 5.50000% 1000.00000000 4.58333285 0.00000000 0.00000000 6-A-4 7,466,000.00 5.50000% 1000.00000000 4.58333378 0.00000000 0.00000000 PO 2,140,939.35 0.00000% ~~1000~~994.~~00000000~~81605586 0.00000000 0.00000000 0.00000000 AX 0.00 6.00000% ~~1000~~996.~~00000000~~43321992 54.~~00000028~~98216633 0.00000000 0.00000000 A-LR 50.00 4.50000% ~~1000~~0.00000000 30.~~80000000~~00000000 0.00000000 0.00000000 A-UR 50.00 4.50000% ~~1000~~0.00000000 30.~~80000000~~00000000 0.00000000 0.00000000 B-1 6,065,000.00 5.~~80143~~80165% ~~1000~~999.~~00000000~~11479143 4.~~83452597~~83043199 0.00000000 0.00000000 B-2 1,733,000.00 5.~~80143~~80165% ~~1000~~999.~~00000000~~11478938 4.~~83452395~~83043278 0.00000000 0.00000000 B-3 991,000.00 5.~~80143~~80165% ~~1000~~999.~~00000000~~11479314 4.~~83453078~~83043391 0.00000000 0.00000000 B-4 866,000.00 5.~~80143~~80165% ~~1000~~999.~~00000000~~11479215 4.~~83452656~~83042725 0.00000000 0.00000000 B-5 619,000.00 5.~~80143~~80165% ~~1000~~999.~~00000000~~11479806 4.~~83452342~~83043619 0.00000000 0.00000000 B-6 495,588.37 5.~~80143~~80165% ~~1000~~999.~~00000000~~11478956 4.~~83451619~~83044023 0.00000000 0.00000000 B-I-1 7,398,000.00 6.~~05975~~05977% ~~1000~~999.~~00000000~~09055826 5.~~04979184~~04521898 0.00000000 0.00000000 B-I-2 3,021,000.00 6.~~05975~~05977% ~~1000~~999.~~00000000~~09055942 5.~~04979146~~04522013 0.00000000 0.00000000 B-I-3 1,876,000.00 6.~~05975~~05977% ~~1000~~999.~~00000000~~09055970 5.~~04979211~~04521855 0.00000000 0.00000000 B-I-4 1,354,000.00 6.~~05975~~05977% ~~1000~~999.~~00000000~~09056130 5.~~04979321~~04522157 0.00000000 0.00000000 B-I-5 1,355,000.00 6.~~05975~~05977% ~~1000~~999.~~00000000~~09056089 5.~~04979336~~04521771 0.00000000 0.00000000 B-I-6 1,146,310.60 6.~~05975~~05977% ~~1000~~999.~~00000000~~09056062 5.~~04979192~~04522073 0.00000000 0.00000000 P 0.02 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 (5) All Classes are per $1,000 Denomination.

Interest Distribution Factors Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (6) Distribution Shortfall Balance 1-A-1 0.~~00000000~~02522089 0.00000000 3.~~75000000~~69430978 0.00000000 ~~991~~984.~~87488044~~33336711 1-AX 0.~~00000000~~02522322 0.00000000 3.~~75000042~~69491016 0.00000000 ~~992~~984.~~03575427~~54624758 2-A-1 0.00000000 0.00000000 5.~~41666673~~28976873 0.00000000 ~~976~~951.~~57268118~~80114690 2-AX 0.00000000 0.00000000 5.~~41666502~~41278853 0.00000000 ~~999~~962.~~28447180~~69182833 3-A-1 0.00000000 0.00000000 54.~~00000000~~99266723 0.00000000 ~~998~~986.~~53344009~~65417831 3-AX 0.00000000 0.00000000 54.~~00000184~~99262288 0.00000000 ~~998~~991.~~52459901~~09452943 4-A-1 0.00000000 0.00000000 4.~~58333333~~57842795 0.00000000 ~~998~~993.~~92974740~~46672974 4-AX 0.00000000 0.00000000 4.~~58333273~~57847008 0.00000000 ~~998~~991.~~93854817~~36011454 5-A-1 0.~~00000000~~01584775 0.00000000 2.~~12499979~~32132575 0.00000000 ~~995~~964.~~42442217~~21249415 5-A-2 0.~~00000000~~02915040 0.00000000 4.~~54166674~~26983895 0.00000000 ~~995~~964.~~42442217~~21249415 5-A-3 0.~~00000000~~03093607 0.00000000 4.~~58333337~~53142589 0.00000000 ~~995~~964.~~42442207~~21249425 5-A-4 0.~~00000000~~03390332 0.00000000 54.~~00000000~~96609668 0.00000000 1000.00000000 5-A-5 0.~~00000000~~03390380 0.00000000 54.~~00000000~~96609620 0.00000000 1000.00000000 5-A-6 0.~~00000000~~03390000 0.00000000 54.~~00000000~~96610000 0.00000000 1000.00000000 6-A-1 0.~~00000000~~04515187 0.00000000 6.~~66666667~~61364497 0.00000000 ~~998~~989.~~81957002~~75540828 6-A-2 0.~~00000000~~02963057 0.00000000 4.~~37500000~~34020493 0.00000000 ~~998~~989.~~81957022~~75540927 6-A-3 0.~~00000000~~03107870 0.00000000 4.~~58333285~~55225560 0.00000000 1000.00000000 6-A-4 0.~~00000000~~03107822 0.00000000 4.~~58333378~~55225556 0.00000000 1000.00000000 PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~994~~990.~~81605586~~13431184 AX 0.~~00000000~~03378266 0.00000000 54.~~00000028~~94838367 0.00000000 ~~996~~968.~~43321992~~25228669 A-LR 0.00000000 0.00000000 30.~~80000000~~00000000 0.00000000 0.00000000 A-UR 0.00000000 0.00000000 ~~109~~4.~~20000000~~60000000 0.00000000 0.00000000 B-1 0.~~00000000~~03344765 0.00000000 4.~~83452597~~79698434 0.00000000 ~~999~~998.~~11479143~~22336026 B-2 0.~~00000000~~03344489 0.00000000 4.~~83452395~~79698211 0.00000000 ~~999~~998.~~11478938~~22335834 B-3 0.~~00000000~~03345106 0.00000000 4.~~83453078~~79698285 0.00000000 ~~999~~998.~~11479314~~22336024 B-4 0.~~00000000~~03345266 0.00000000 4.~~83452656~~79698614 0.00000000 ~~999~~998.~~11479215~~22336028 B-5 0.~~00000000~~03344103 0.00000000 4.~~83452342~~79697900 0.00000000 ~~999~~998.~~11479806~~22336026 B-6 0.~~00000000~~03345518 0.00000000 4.~~83451619~~79698505 0.00000000 ~~999~~998.~~11478956~~22336428 B-I-1 0.00000000 0.00000000 5.~~04979184~~04521898 0.00000000 ~~999~~998.~~09055826~~16520952 B-I-2 0.00000000 0.00000000 5.~~04979146~~04522013 0.00000000 ~~999~~998.~~09055942~~16521020 B-I-3 0.00000000 0.00000000 5.~~04979211~~04521855 0.00000000 ~~999~~998.~~09055970~~16520789 B-I-4 0.00000000 0.00000000 5.~~04979321~~04522157 0.00000000 ~~999~~998.~~09056130~~16520679 B-I-5 0.00000000 0.00000000 5.~~04979336~~04521771 0.00000000 ~~999~~998.~~09056089~~16521033 B-I-6 0.00000000 0.00000000 5.~~04979192~~04522073 0.00000000 ~~999~~998.~~09056062~~16520932 P 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (6) Amount Does Not Include Excess Special Hazard, Bankruptcy,or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Certificateholder Component Statement Component Beginning Ending Beginning Ending Ending Pass-Through Notional Notional Component Component Component Class Rate Balance Balance Balance Balance Percentage PO-1 0.00000% 0.00 0.00 23,~~188~~010.3288 2322,~~010~~832.8877 9998.~~23478717~~46668495% PO-2 0.00000% 0.00 0.00 ~~356,899.20~~ 347,548.72 97341,233.~~38007818~~98 95.61074387% PO-3 0.00000% 0.00 0.00 394,~~975~~593.2286 ~~394~~392,~~593~~536.8666 99.~~90344711~~38260431% PO-4 0.00000% 0.00 0.00 87,~~234~~134.5303 87,~~134~~037.0305 99.~~88479333~~77362175% PO-5 0.00000% 0.00 0.00 268,~~533~~373.6661 ~~268~~267,~~373~~992.6121 99.~~94039853~~79836792% PO-6 0.00000% 0.00 0.00 1,~~010~~009,~~108~~179.4274 1,~~009~~008,~~179~~184.7484 99.~~90806135~~80956698% AX-5 6.00000% 5,~~601~~578,~~029~~113.2250 5,~~578~~405,~~113~~617.5026 0.00 0.00 9996.~~59086591~~51114193% AX-6 6.00000% 1,~~066~~065,~~592~~726.4119 1,~~065~~050,~~726~~322.1963 0.00 0.00 9998.~~91878622~~47460193%

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 49,~~547~~521,~~901~~043.5399 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 8395,~~329~~534.6753 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 49,~~631~~616,~~231~~578.2052 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 100,~~856~~376.1801 Payment of Interest and Principal 49,~~530~~516,~~375~~202.0251 Total Withdrawals (Pool Distribution Amount) 49,~~631~~616,~~231~~578.2052 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 08,217.0059 Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall 08,217.0059

SERVICING FEES Gross Servicing Fee 96,~~545~~076.5303 LPMI 1,~~089~~088.0814 Master Servicing Fee ~~123~~122.1285 WMMSC MS Fee 3,~~098~~088.4599 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 100,~~856~~376.1801

LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT DELINQUENCY STATUS DELINQUENT BANKRUPTCY FORECLOSURE REO Total No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 6268 0 0 0 6268 1315,~~695~~019,~~320~~713.9268 0.00 0.00 0.00 1315,~~695~~019,~~320~~713.9268 60 Days 15 0 0 0 15 ~~352~~513,~~000~~354.0066 0.00 0.00 0.00 ~~352~~513,~~000~~354.0066 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180+ Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 6373 0 0 0 6373 1415,~~047~~533,~~320~~068.9234 0.00 0.00 0.00 1415,~~047~~533,~~320~~068.9234 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 23.~~979337~~309002% 0.000000% 0.000000% 0.000000% 23.~~979337~~309002% 3.~~015594~~361054% 0.000000% 0.000000% 0.000000% 3.~~015594~~361054% 60 Days 0.~~048054~~243309% 0.000000% 0.000000% 0.000000% 0.~~048054~~243309% 0.~~077507~~114877% 0.000000% 0.000000% 0.000000% 0.~~077507~~114877% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180+ Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 3.~~027391~~552311% 0.000000% 0.000000% 0.000000% 3.~~027391~~552311% 3.~~093101~~475931% 0.000000% 0.000000% 0.000000% 3.~~093101~~475931%

Delinquency Status By Groups

~~Delinquency Status By Groups~~ DELINQUENT BANKRUPTCY FORECLOSURE REO Total 1 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 02 0 0 0 02 0367,083.0064 0.00 0.00 0.00 0367,083.0064 60 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 02 0 0 0 02 0367,083.0064 0.00 0.00 0.00 0367,083.0064 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 02.~~000000~~173913% 0.000000% 0.000000% 0.000000% 02.~~000000~~173913% 01.~~000000~~627620% 0.000000% 0.000000% 0.000000% 01.~~000000~~627620% 60 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 02.~~000000~~173913% 0.000000% 0.000000% 0.000000% 02.~~000000~~173913% 01.~~000000~~627620% 0.000000% 0.000000% 0.000000% 01.~~000000~~627620% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 2 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 1016 0 0 0 1016 1,~~184~~477,~~388~~233.0625 0.00 0.00 0.00 1,~~184~~477,~~388~~233.0625 60 Days 02 0 0 0 02 0205,554.0066 0.00 0.00 0.00 0205,554.0066 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 1018 0 0 0 1018 1,~~184~~682,~~388~~787.0691 0.00 0.00 0.00 1,~~184~~682,~~388~~787.0691 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 23.~~044990~~333333% 0.000000% 0.000000% 0.000000% 23.~~044990~~333333% 2.~~128385~~717988% 0.000000% 0.000000% 0.000000% 2.~~128385~~717988% 60 Days 0.~~000000~~416667% 0.000000% 0.000000% 0.000000% 0.~~000000~~416667% 0.~~000000~~378204% 0.000000% 0.000000% 0.000000% 0.~~000000~~378204% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 23.~~044990~~750000% 0.000000% 0.000000% 0.000000% 23.~~044990~~750000% 23.~~128385~~096192% 0.000000% 0.000000% 0.000000% 23.~~128385~~096192% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 3 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 2925 0 0 0 2925 43,~~136~~166,~~087~~036.8614 0.00 0.00 0.00 43,~~136~~166,~~087~~036.8614 60 Days 03 0 0 0 03 0307,800.00 0.00 0.00 0.00 0307,800.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 2928 0 0 0 2928 43,~~136~~473,~~087~~836.8614 0.00 0.00 0.00 43,~~136~~473,~~087~~836.8614 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 3.~~460621~~012048% 0.000000% 0.000000% 0.000000% 3.~~460621~~012048% 32.~~582360~~773106% 0.000000% 0.000000% 0.000000% 32.~~582360~~773106% 60 Days 0.~~000000~~361446% 0.000000% 0.000000% 0.000000% 0.~~000000~~361446% 0.~~000000~~269600% 0.000000% 0.000000% 0.000000% 0.~~000000~~269600% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 3.~~460621~~373494% 0.000000% 0.000000% 0.000000% 3.~~460621~~373494% 3.~~582360~~042705% 0.000000% 0.000000% 0.000000% 3.~~582360~~042705% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 4 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 68 0 0 0 68 ~~924~~1,~~235~~385,837.2898 0.00 0.00 0.00 ~~924~~1,~~235~~385,837.2898 60 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 68 0 0 0 68 ~~924~~1,~~235~~385,837.2898 0.00 0.00 0.00 ~~924~~1,~~235~~385,837.2898 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 23.~~597403~~478261% 0.000000% 0.000000% 0.000000% 23.~~597403~~478261% 23.~~566835~~868821% 0.000000% 0.000000% 0.000000% 23.~~566835~~868821% 60 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 23.~~597403~~478261% 0.000000% 0.000000% 0.000000% 23.~~597403~~478261% 23.~~566835~~868821% 0.000000% 0.000000% 0.000000% 23.~~566835~~868821% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 5 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 1216 0 0 0 1216 58,~~260~~048,~~939~~223.7144 0.00 0.00 0.00 58,~~260~~048,~~939~~223.7144 60 Days 10 0 0 0 10 ~~352,000~~0.00 0.00 0.00 0.00 ~~352,000~~0.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 1316 0 0 0 1316 58,~~612~~048,~~939~~223.7144 0.00 0.00 0.00 58,~~612~~048,~~939~~223.7144 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 45.~~181185~~714286% 0.000000% 0.000000% 0.000000% 45.~~181185~~714286% 35.~~515466~~518425% 0.000000% 0.000000% 0.000000% 35.~~515466~~518425% 60 Days 0.~~348432~~000000% 0.000000% 0.000000% 0.000000% 0.~~348432~~000000% 0.~~235213~~000000% 0.000000% 0.000000% 0.000000% 0.~~235213~~000000% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 45.~~529617~~714286% 0.000000% 0.000000% 0.000000% 45.~~529617~~714286% 35.~~750679~~518425% 0.000000% 0.000000% 0.000000% 35.~~750679~~518425% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 6 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 51 0 0 0 51 2575,~~189,670~~299.0123 0.00 0.00 0.00 2575,~~189,670~~299.0123 60 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 51 0 0 0 51 2575,~~189,670~~299.0123 0.00 0.00 0.00 2575,~~189,670~~299.0123 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 30.~~472222~~699301% 0.000000% 0.000000% 0.000000% 30.~~472222~~699301% 20.~~932921~~775977% 0.000000% 0.000000% 0.000000% 20.~~932921~~775977% 60 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 30.~~472222~~699301% 0.000000% 0.000000% 0.000000% 30.~~472222~~699301% 20.~~932921~~775977% 0.000000% 0.000000% 0.000000% 20.~~932921~~775977%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 8395,~~329~~534.6753

COLLATERAL STATEMENT Collateral Description Mixed Fixed Ratio Strip Weighted Average Gross Coupon 6.~~279881~~278938% Weighted Average Pass-Through Rate 6.~~014443~~013457% Weighted Average Maturity(Stepdown Calculation ) ~~344~~343 Beginning Scheduled Collateral Loan Count 2,~~087~~081 Number Of Loans Paid In Full 626 Ending Scheduled Collateral Loan Count 2,~~081~~055 Beginning Scheduled Collateral Balance ~~455~~453,~~953~~708,~~938~~821.3404 Ending Scheduled Collateral Balance ~~453~~446,~~708~~472,~~821~~153.0495 Ending Actual Collateral Balance at 3031-~~Nov~~Dec-2004 ~~454~~446,~~150~~875,~~089~~111.1849 Monthly P &I Constant 2,~~898~~890,~~373~~035.2944 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 49,~~361~~342,~~428~~226.6479 Class AP Deferred Amount 0.00 Scheduled Principal ~~512~~516,~~259~~027.4853 Unscheduled Principal 16,~~732~~720,~~857~~639.8056

Bankruptcy Coverage Amount: Groups 1,5,6 100,000.00 Bankruptcy Coverage Amount: Groups 2,3,4 100,000.00 Fraud Coverage Amount: Groups 1,5,6 4,951,451.00 Fraud Coverage Amount: Groups 2,3,4 4,167,628.00 Special Hazard Coverage Amount: Groups 1,5,6 5,805,839.00 Special Hazard Coverage Amount: Groups 2,3,4 2,083,814.00

Group Level Collateral Statement Group 1 2 3 Collateral Description ~~Fixed~~d 10 Year Ratio Strip ~~Fixed~~d 30 Year Ratio Strip ~~Fixed~~d 30 Year Ratio Strip Weighted Average Coupon Rate 5.~~235537~~235614 6.~~907196~~911451 6.~~343092~~343079 Weighted Average Net Rate 4.~~985538~~985615 6.~~655828~~660053 6.~~093092~~093079 Weighted Average Maturity ~~113~~112 ~~357~~356 ~~357~~356 Beginning Loan Count 92 ~~493~~489 ~~839~~838 Loans Paid In Full 0 49 18 Ending Loan Count 92 ~~489~~480 ~~838~~830 Beginning Scheduled Balance 22,~~784~~599,~~391~~501.10 5655,~~835~~610,~~868~~126.0975 115,~~531~~366,~~305~~790.2621 Ending scheduled Balance 22,~~599~~427,~~501~~830.10 5554,~~610~~317,~~126~~651.7518 ~~115~~114,~~366~~091,~~790~~601.2184 Record Date 1112/3031/2004 1112/3031/2004 1112/3031/2004 Principal And Interest Constant 256,254.17 ~~373~~368,~~666~~156.9480 716,~~976~~650.5303 Scheduled Principal ~~156~~157,~~847~~652.0629 4647,~~519~~867.8691 106,~~288~~832.4378 Unscheduled Principal 2814,~~042~~018.9471 1,~~179~~244,~~221~~607.4866 581,~~226~~168,355.6259 Scheduled Interest 9998,~~407~~601.1188 ~~327~~320,~~147~~288.0889 ~~610~~609,~~688~~817.1025 Servicing Fees 4,~~746~~708.7320 11,~~905~~650.6121 24,~~069~~034.0273 Master Servicing Fees 26.2204 10.68 15.66 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 17.3421 ~~220~~212.3592 ~~439~~438.1285 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest 9493,~~616~~850.8243 ~~315~~308,~~010~~415.4408 ~~586~~585,~~164~~328.3001 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 4.~~983243~~983317 6.~~650950~~655229 6.~~088368~~088352

Group Level Collateral Statement Group 4 5 6 Collateral Description ~~Fixed~~d 30 Year Ratio Strip ~~Fixed~~d 30 Year Ratio Strip ~~Fixed~~d 30 Year Ratio Strip Weighted Average Coupon Rate 5.~~892548~~892551 6.~~479086~~478984 5.~~809540~~809549 Weighted Average Net Rate 5.~~642548~~642551 6.~~226852~~226744 5.~~540080~~540093 Weighted Average Maturity ~~357~~356 ~~355~~ 354 353 Beginning Loan Count 231 ~~288~~287 144 Loans Paid In Full 0 1 07 1 Ending Loan Count ~~231~~230 ~~287~~280 ~~144~~143 Beginning Scheduled Balance 3635,~~014~~975,~~246~~803.2028 ~~150~~149,~~123~~561,~~319~~737.6129 74,~~664~~594,~~808~~862.0641 Ending scheduled Balance 35,~~975~~791,~~803~~794.2887 ~~149~~145,~~561~~758,~~737~~116.2988 74,~~594~~085,~~862~~159.4108 Record Date 1112/3031/2004 1112/3031/2004 1112/3031/2004 Principal And Interest Constant 213,997.01 ~~907~~905,~~979~~480.2498 429,~~499~~496.4045 Scheduled Principal 37,~~150~~339.6031 97,~~427~~974.6523 68,~~025~~361.8801 Unscheduled Principal 1146,~~292~~669.3210 ~~464~~3,~~154~~705,646.6718 1441,~~919~~342.7732 Scheduled Interest 176,~~846~~657.4170 ~~810~~807,~~551~~506.5975 361,~~473~~135.5244 Servicing Fees 7,~~502~~494.9795 31,~~555~~437.1992 16,~~766~~750.0102 Master Servicing Fees 7.3432 18.8482 44.3833 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 70.9690 1,~~693~~692.5652 1,~~746~~744.2073 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest 169,~~265~~084.1453 ~~777~~774,~~284~~357.0049 342,~~916~~596.9336 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 5.~~639939~~639941 6.~~213164~~213013 5.~~511303~~511313

Group Level Collateral Statement Group Total Collateral Description ~~Mixed~~xed Fixed Ratio Strip Weighted Average Coupon Rate 6.~~279881~~278938 Weighted Average Net Rate 6.~~025788~~013781 Weighted Average Maturity ~~344~~343.00 Record Date 1112/3031/2004 Principal And Interest Constant 2,~~898~~890,~~373~~035.2944 Beginning Loan Count 2,~~087~~081 Loans Paid In Full 626 Ending Loan Count 2,~~081~~055 Beginning Scheduled Balance ~~455~~453,~~953~~708,~~938~~821.3204 Ending Scheduled Balance ~~453~~446,~~708~~472,~~821~~153.0495 Scheduled Principal ~~512~~516,~~259~~027.4853 Unscheduled Principal 16,~~732~~720,~~857~~639.8056 Scheduled Interest 2,~~386~~374,~~113~~007.8191 Servicing Fee 96,~~545~~076.5303 Master Servicing Fee ~~123~~122.1285 Trustee Fee 0.00 Fry Amount 0.00 Special Hazard Fee 0.00 Other Fee 4,~~187~~177.5313 Pool Insurance Fee 0.00 Spread 1 0.00 Spread 2 0.00 Spread 3 0.00 Net Interest 2,~~285~~273,~~257~~631.6390 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Percentage of Cumulative Losses 0.0000 Prepayment Penalties 0.00 Special Servicing Fee 0.00 Pass-Through Rate 6.~~014443~~013457

Miscellaneous Reporting Group 1 Senior % 98.~~852860~~851436% Junior % 1.~~147140~~148564% Senior Prepayment % 100.000000% Group 2 Senior % 91.~~639421~~462386% Junior % 8.~~360579~~537614% Senior Prepayment % 100.000000% Group 3 Senior % 92.~~499040~~495242% Junior % 7.~~500960~~504758% Senior Prepayment % 100.000000%

Miscellaneous Reporting Group 4 Senior % 92.~~228656~~228377% Junior % 7.~~771344~~771623% Senior Prepayment % 100.000000% Group 5 Senior % 95.~~318944~~304390% Junior % 4.~~681056~~695610% Senior Prepayment % 100.000000% Group 6 Senior % 95.~~256651~~256529% Junior % 4.~~743349~~743471% Senior Prepayment % 100.000000%

Group

Filing Compare · MASTR ALTERNATIVE LOAN TRUST 2004-12