8-K 1 mal03004.txt DECEMBER 8K 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): December 26, 2003 MASTR ALTERNATIVE LOAN TRUST Mortgage Pass-Through Certificates, Series 2003-4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-101254-07 54-2120399 Pooling and Servicing Agreement) (Commission 54-2120398 (State or other File Number) IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank Minnesota, 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) ITEM 5. Other Events On December 26, 2003 a distribution was made to holders of MASTR ALTERNATIVE LOAN TRUST, Mortgage Pass-Through Certificates, Series 2003-4 Trust. ITEM 7. Financial Statements and Exhibits (c) Exhibits furnished in accordance with Item 601(a) of Regulation S-K Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-4 Trust, relating to the December 26, 2003 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 2003-4 Trust By: Wells Fargo Bank Minnesota, N.A. as Master Servicer By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 12/30/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-4 Trust, relating to the December 26, 2003 distribution. EX-99.1

MASTR Alternative Loan Trust Mortgage Pass-Through Certificates Record Date: 1011/3130/03 Distribution Date: 1112/2526/03 MAL Series: 2003-4 Contact: Customer Service - CTSLink Wells Fargo Bank Minnesota, 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 576434EJ9 SEN 5.00000% ~~134~~132,~~622~~600,~~974~~925.4795 ~~559~~552,~~524~~503.4186 21,~~022~~889,~~048~~373.5294 2-A-1 576434EK6 SEN 6.25000% 4744,~~545~~476,~~619~~791.1317 ~~247~~231,~~013~~649.3295 31,~~068~~111,~~827~~937.9623 3-A-1 576434EL4 SEN 6.00000% 8177,~~849~~929,~~918~~343.2061 ~~408~~389,~~224~~646.7772 3,~~920~~433,~~574~~070.5914 4-A-1 576434EM2 SEN 5.50000% 4947,~~843~~248,~~677~~708.8386 ~~227~~216,~~878~~556.1258 21,~~594~~249,~~968~~407.9605 4-A-2 576434EN0 SEN 5.25000% 2422,~~118~~862,~~467~~808.6035 ~~105~~100,~~254~~024.0679 1604,~~255,659~~565.2481 4-A-3 576434EP5 SEN 8.00000% 2,~~411~~286,~~783~~220.1756 1615,~~038~~241.2947 ~~125~~60,~~562~~454.6199 5-A-1 576434EQ3 SEN 6.50000% 3329,~~496~~818,~~143~~677.1968 ~~180~~161,~~983~~517.1084 3361,~~677,465~~294.5112 15-AX 576434ER1 SEN 5.00000% 0.00 ~~100~~98,~~862~~652.5870 0.00 15-PO 576434ES9 SEN 0.00000% ~~579~~576,~~070~~676.0825 0.00 2,~~393~~509.8315 30-AX 576434ET7 SEN 6.00000% 0.00 ~~109~~101,~~153~~524.0760 0.00 30-PO 576434EU4 SEN 0.00000% ~~429~~425,~~771~~394.3355 0.00 ~~4,376~~411.7865 B-1 576434EW0 SUB 5.~~63053~~63125% 10,~~794~~768,~~053~~771.8916 50,~~520~~534.0668 25,~~282~~445.7378 B-2 576434EX8 SUB 5.~~63053~~63125% 4,~~721~~710,~~780~~720.6793 22,~~099~~106.6303 11,~~059~~131.7507 B-3 576434EY6 SUB 5.~~63053~~63125% 3,~~373~~365,~~265~~364.4228 15,~~788~~792.1067 7,~~901~~952.1410 B-4 576434EZ3 SUB 5.~~63053~~63125% 1,~~573~~570,~~926~~240.8931 7,~~366~~368.5468 3,~~686~~710.5836 B-5 576434FA7 SUB 5.~~63053~~63125% 1,~~573~~570,~~926~~240.8931 7,~~366~~368.5468 3,~~686~~710.5836 B-6 576434FB5 SUB 5.~~63053~~63125% 1,~~574~~570,~~503~~815.2734 7,~~369~~371.2438 3,~~687~~711.9372 A-R 576434EV2 RES 5.00000% 0.00 0.1300 0.00 Totals ~~398~~381,~~508~~781,~~882~~699.0331 21,~~065~~977,~~441~~860.9663 168,~~727~~768,~~182~~685.7147

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses 1-A-1 0.00 ~~132~~130,~~600~~711,~~925~~552.9501 2,~~581~~441,~~572~~877.9380 0.00 2-A-1 0.00 4443,~~476~~364,~~791~~853.1794 31,~~315~~343,~~841~~587.2818 0.00 3-A-1 0.00 7774,~~929~~496,~~343~~273.6147 43,~~328~~822,~~799~~716.3686 0.00 4-A-1 0.00 4745,~~248~~999,~~708~~301.8682 21,~~822~~465,~~847~~963.0863 0.00 4-A-2 0.00 22,~~862~~258,~~808~~242.3554 1704,~~360,913~~590.3060 0.00 4-A-3 0.00 2,~~286~~225,~~220~~765.5657 ~~141~~75,~~600~~696.9046 0.00 5-A-1 0.00 29,~~818~~457,~~677~~383.6856 3522,~~858,448~~811.6196 0.00 15-AX 0.00 0.00 ~~100~~98,~~862~~652.5870 0.00 15-PO 0.00 ~~576~~574,~~676~~167.2510 2,~~393~~509.8315 0.00 30-AX 0.00 0.00 ~~109~~101,~~153~~524.0760 0.00 30-PO 0.00 ~~425~~424,~~394~~982.5590 ~~4,376~~411.7865 0.00 B-1 0.00 10,~~768~~743,~~771~~325.1638 75,~~802~~980.7946 0.00 B-2 0.00 4,~~710~~699,~~720~~589.9385 33,~~159~~237.3810 0.00 B-3 0.00 3,~~365~~357,~~364~~412.2818 23,~~689~~744.2477 0.00 B-4 0.00 1,~~570~~566,~~240~~529.3195 11,~~053~~079.1204 0.00 B-5 0.00 1,~~570~~566,~~240~~529.3195 11,~~053~~079.1204 0.00 B-6 0.00 1,~~570~~567,~~815~~103.3462 11,~~057~~083.1710 0.00 A-R 0.00 0.00 0.1300 0.00 Totals 0.00 ~~381~~373,~~781~~013,~~699~~013.3184 1810,~~792~~746,~~624~~546.6710 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-1 145,561,000.00 ~~134~~132,~~622~~600,~~974~~925.4795 ~~518~~516,~~678~~434.9702 1,~~503~~372,~~369~~939.5691 0.00 0.00 2-A-1 49,687,000.00 4744,~~545~~476,~~619~~791.1317 3937,~~696~~405.3193 31,~~029~~074,~~131~~531.6430 0.00 0.00 3-A-1 96,968,000.00 8177,~~849~~929,~~918~~343.2061 6461,~~098~~545.2158 3,~~856~~371,~~476~~524.3756 0.00 0.00 4-A-1 62,707,000.00 4947,~~843~~248,~~677~~708.8386 ~~155~~148,~~687~~640.4273 21,~~439~~100,~~281~~766.5532 0.00 0.00 4-A-2 30,342,800.00 2422,~~118~~862,~~467~~808.6035 7571,~~334~~924.3760 1532,~~180,324~~641.8821 0.00 0.00 4-A-3 3,034,200.00 2,~~411~~286,~~783~~220.1756 7,~~533~~192.2427 ~~118~~53,~~029~~262.3872 0.00 0.00 5-A-1 41,491,000.00 3329,~~496~~818,~~143~~677.1968 2623,~~145~~689.8684 3337,~~651,319~~604.6528 0.00 0.00 15-AX 0.00 0.00 0.00 0.00 0.00 0.00 15-PO 764,332.68 ~~579~~576,~~070~~676.0825 2,~~327~~337.2686 66171.5629 0.00 0.00 30-AX 0.00 0.00 0.00 0.00 0.00 0.00 30-PO 456,290.51 ~~429~~425,~~771~~394.3355 ~~400~~398.1440 ~~3,976~~13.6525 0.00 0.00 B-1 10,918,000.00 10,~~794~~768,~~053~~771.8916 25,~~282~~445.7378 0.00 0.00 0.00 B-2 4,776,000.00 4,~~721~~710,~~780~~720.6793 11,~~059~~131.7507 0.00 0.00 0.00 B-3 3,412,000.00 3,~~373~~365,~~265~~364.4228 7,~~901~~952.1410 0.00 0.00 0.00 B-4 1,592,000.00 1,~~573~~570,~~926~~240.8931 3,~~686~~710.5836 0.00 0.00 0.00 B-5 1,592,000.00 1,~~573~~570,~~926~~240.8931 3,~~686~~710.5836 0.00 0.00 0.00 B-6 1,592,583.00 1,~~574~~570,~~503~~815.2734 3,~~687~~711.9372 0.00 0.00 0.00 A-R 100.00 0.00 0.00 0.00 0.00 0.00 Totals 454,894,306.19 ~~398~~381,~~508~~781,~~882~~699.0331 ~~945~~925,~~206~~230.4962 157,~~781~~843,~~976~~454.2484 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 21,~~022~~889,~~048~~373.5294 ~~132~~130,~~600~~711,~~925~~552.9501 0.~~91096465~~89798471 21,~~022~~889,~~048~~373.5294 2-A-1 31,~~068~~111,~~827~~937.9623 4443,~~476~~364,~~791~~853.1794 0.~~89513940~~87276056 31,~~068~~111,~~827~~937.9623 3-A-1 3,~~920~~433,~~574~~070.5914 7774,~~929~~496,~~343~~273.6147 0.~~80366042~~76825626 3,~~920~~433,~~574~~070.5914 4-A-1 21,~~594~~249,~~968~~407.9605 4745,~~248~~999,~~708~~301.8682 0.~~75348380~~73355928 21,~~594~~249,~~968~~407.9605 4-A-2 1604,~~255,659~~565.2481 22,~~862~~258,~~808~~242.3554 0.~~75348380~~73355928 1604,~~255,659~~565.2481 4-A-3 ~~125~~60,~~562~~454.6199 2,~~286~~225,~~220~~765.5657 0.~~75348380~~73355928 ~~125~~60,~~562~~454.6199 5-A-1 3361,~~677,465~~294.5112 29,~~818~~457,~~677~~383.6856 0.~~71867821~~70997044 3361,~~677,465~~294.5112 15-AX 0.00 0.00 0.00000000 0.00 15-PO 2,~~393~~509.8315 ~~576~~574,~~676~~167.2510 0.~~75448331~~75120051 2,~~393~~509.8315 30-AX 0.00 0.00 0.00000000 0.00 30-PO ~~4,376~~411.7865 ~~425~~424,~~394~~982.5590 0.~~93228884~~93138667 ~~4,376~~411.7865 B-1 25,~~282~~445.7378 10,~~768~~743,~~771~~325.1638 0.~~98633185~~98400123 25,~~282~~445.7378 B-2 11,~~059~~131.7507 4,~~710~~699,~~720~~589.9385 0.~~98633185~~98400122 11,~~059~~131.7507 B-3 7,~~901~~952.1410 3,~~365~~357,~~364~~412.2818 0.~~98633185~~98400123 7,~~901~~952.1410 B-4 3,~~686~~710.5836 1,~~570~~566,~~240~~529.3195 0.~~98633185~~98400122 3,~~686~~710.5836 B-5 3,~~686~~710.5836 1,~~570~~566,~~240~~529.3195 0.~~98633185~~98400122 3,~~686~~710.5836 B-6 3,~~687~~711.9372 1,~~570~~567,~~815~~103.3462 0.~~98633185~~98400122 3,~~687~~711.9372 A-R 0.00 0.00 0.00000000 0.00 Totals 168,~~727~~768,~~182~~685.7147 ~~381~~373,~~781~~013,~~699~~013.3184 0.~~83927562~~81999930 168,~~727~~768,~~182~~685.7147

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion 1-A-1 145,561,000.00 ~~924~~910.~~85607044~~96465365 3.~~56331002~~54788728 109.~~32810684~~43205879 0.00000000 2-A-1 49,687,000.00 ~~956~~895.~~90259283~~13939602 0.~~79892749~~75283132 6021.~~96426912~~62600479 0.00000000 3-A-1 96,968,000.00 ~~844~~803.~~09205305~~66042004 0.~~66102436~~63469990 3934.~~77060855~~76945549 0.00000000 4-A-1 62,707,000.00 ~~794~~753.~~86624827~~48380340 2.~~48277577~~37040091 3817.~~89966910~~55412187 0.00000000 4-A-2 30,342,800.00 ~~794~~753.~~86624834~~48380341 2.~~48277582~~37040089 3817.~~89966911~~55412190 0.00000000 4-A-3 3,034,200.00 ~~794~~753.~~86624810~~48380463 2.~~48277635~~37040076 3817.~~89967042~~55412300 0.00000000 5-A-1 41,491,000.00 ~~807~~718.~~31105999~~67821166 0.~~63015738~~57096334 888.~~00269095~~13680750 0.00000000 15-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 15-PO 764,332.68 ~~757~~754.~~61523111~~48330955 3.~~04482598~~05869428 0.~~08708250~~22410399 0.00000000 30-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 30-PO 456,290.51 ~~941~~932.~~88093020~~28883941 0.~~87694132~~87312796 80.~~71517139~~02903852 0.00000000 B-1 10,918,000.00 ~~988~~986.~~64754442~~33185199 2.~~31569243~~33062649 0.00000000 0.00000000 B-2 4,776,000.00 ~~988~~986.~~64754397~~33185302 2.~~31569305~~33062605 0.00000000 0.00000000 B-3 3,412,000.00 ~~988~~986.~~64754396~~33185229 2.~~31569168~~33062720 0.00000000 0.00000000 B-4 1,592,000.00 ~~988~~986.~~64754397~~33185302 2.~~31569095~~33062814 0.00000000 0.00000000 B-5 1,592,000.00 ~~988~~986.~~64754397~~33185302 2.~~31569095~~33062814 0.00000000 0.00000000 B-6 1,592,583.00 ~~988~~986.~~64754302~~33185209 2.~~31569092~~33062892 0.00000000 0.00000000 A-R 100.00 0.00000000 0.00000000 0.00000000 0.00000000

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 1312.~~89141679~~97994614 ~~910~~897.~~96465365~~98470751 0.~~91096465~~89798471 1312.~~89141679~~97994614 2-A-1 0.00000000 6122.~~76319681~~37883611 ~~895~~872.~~13939602~~76055991 0.~~89513940~~87276056 6122.~~76319681~~37883611 3-A-1 0.00000000 4035.~~43163301~~40415539 ~~803~~768.~~66042004~~25626464 0.~~80366042~~76825626 4035.~~43163301~~40415539 4-A-1 0.00000000 4119.~~38244470~~92452278 ~~753~~733.~~48380340~~55928078 0.~~75348380~~73355928 4119.~~38244470~~92452278 4-A-2 0.00000000 4119.~~38244460~~92452279 ~~753~~733.~~48380341~~55928062 0.~~75348380~~73355928 4119.~~38244460~~92452279 4-A-3 0.00000000 4119.~~38244348~~92452376 ~~753~~733.~~48380463~~55928086 0.~~75348380~~73355928 4119.~~38244348~~92452376 5-A-1 0.00000000 888.~~63284833~~70777084 ~~718~~709.~~67821166~~97044082 0.~~71867821~~70997044 888.~~63284833~~70777084 15-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 15-PO 0.00000000 3.~~13192156~~28279827 ~~754~~751.~~48330955~~20051127 0.~~75448331~~75120051 3.~~13192156~~28279827 30-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 30-PO 0.00000000 90.~~59209079~~90216647 ~~932~~931.~~28883941~~38667293 0.~~93228884~~93138667 90.~~59209079~~90216647 B-1 0.00000000 2.~~31569243~~33062649 ~~986~~984.~~33185199~~00122550 0.~~98633185~~98400123 2.~~31569243~~33062649 B-2 0.00000000 2.~~31569305~~33062605 ~~986~~984.~~33185302~~00122487 0.~~98633185~~98400122 2.~~31569305~~33062605 B-3 0.00000000 2.~~31569168~~33062720 ~~986~~984.~~33185229~~00122509 0.~~98633185~~98400123 2.~~31569168~~33062720 B-4 0.00000000 2.~~31569095~~33062814 ~~986~~984.~~33185302~~00122487 0.~~98633185~~98400122 2.~~31569095~~33062814 B-5 0.00000000 2.~~31569095~~33062814 ~~986~~984.~~33185302~~00122487 0.~~98633185~~98400122 2.~~31569095~~33062814 B-6 0.00000000 2.~~31569092~~33062892 ~~986~~984.~~33185209~~00122317 0.~~98633185~~98400122 2.~~31569092~~33062892 A-R 0.00000000 0.00000000 0.00000000 0.00000000 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-1 145,561,000.00 5.00000% ~~134~~132,~~622~~600,~~974~~925.4795 ~~560~~552,~~929~~503.0686 0.00 0.00 2-A-1 49,687,000.00 6.25000% 4744,~~545~~476,~~619~~791.1317 ~~247~~231,~~633~~649.4395 0.00 0.00 3-A-1 96,968,000.00 6.00000% 8177,~~849~~929,~~918~~343.2061 ~~409~~389,~~249~~646.5972 0.00 0.00 4-A-1 62,707,000.00 5.50000% 4947,~~843~~248,~~677~~708.8386 ~~228~~216,~~450~~556.1958 0.00 0.00 4-A-2 30,342,800.00 5.25000% 2422,~~118~~862,~~467~~808.6035 ~~105~~100,~~518~~024.3079 0.00 0.00 4-A-3 3,034,200.00 8.00000% 2,~~411~~286,~~783~~220.1756 1615,~~078~~241.5547 0.00 0.00 5-A-1 41,491,000.00 6.50000% 3329,~~496~~818,~~143~~677.1968 ~~181~~161,~~437~~517.4484 0.00 0.00 15-AX 0.00 5.00000% 2423,~~267~~676,~~790~~647.5387 ~~101~~98,~~115~~652.7970 0.00 0.00 15-PO 764,332.68 0.00000% ~~579~~576,~~070~~676.0825 0.00 0.00 0.00 30-AX 0.00 6.00000% 2120,~~885~~304,~~419~~919.3875 ~~109~~101,~~427~~524.1060 0.00 0.00 30-PO 456,290.51 0.00000% ~~429~~425,~~771~~394.3355 0.00 0.00 0.00 B-1 10,918,000.00 5.~~63053~~63125% 10,~~794~~768,~~053~~771.8916 50,~~646~~534.8968 0.00 0.00 B-2 4,776,000.00 5.~~63053~~63125% 4,~~721~~710,~~780~~720.6793 22,~~155~~106.1103 0.00 0.00 B-3 3,412,000.00 5.~~63053~~63125% 3,~~373~~365,~~265~~364.4228 15,~~827~~792.7367 0.00 0.00 B-4 1,592,000.00 5.~~63053~~63125% 1,~~573~~570,~~926~~240.8931 7,~~385~~368.0468 0.00 0.00 B-5 1,592,000.00 5.~~63053~~63125% 1,~~573~~570,~~926~~240.8931 7,~~385~~368.0468 0.00 0.00 B-6 1,592,583.00 5.~~63053~~63125% 1,~~574~~570,~~503~~815.2734 7,~~387~~371.7438 0.00 0.00 A-R 100.00 5.00000% 0.00 0.00 0.00 0.00 Totals 454,894,306.19 21,~~070~~977,~~627~~860.0063 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 ~~1,404~~0.6500 0.00 ~~559~~552,~~524~~503.4186 0.00 ~~132~~130,~~600~~711,~~925~~552.9501 2-A-1 ~~620~~0.1100 0.00 ~~247~~231,~~013~~649.3295 0.00 4443,~~476~~364,~~791~~853.1794 3-A-1 ~~1,024~~0.8200 0.00 ~~408~~389,~~224~~646.7772 0.00 7774,~~929~~496,~~343~~273.6147 4-A-1 ~~572~~0.0700 0.00 ~~227~~216,~~878~~556.1258 0.00 4745,~~248~~999,~~708~~301.8682 4-A-2 ~~264~~0.2300 0.00 ~~105~~100,~~254~~024.0679 0.00 22,~~862~~258,~~808~~242.3554 4-A-3 400.2600 0.00 1615,~~038~~241.2947 0.00 2,~~286~~225,~~220~~765.5657 5-A-1 ~~454~~0.3500 0.00 ~~180~~161,~~983~~517.1084 0.00 29,~~818~~457,~~677~~383.6856 15-AX ~~253~~0.2100 0.00 ~~100~~98,~~862~~652.5870 0.00 23,~~676~~181,~~647~~262.8798 15-PO 0.00 0.00 0.00 0.00 ~~576~~574,~~676~~167.2510 30-AX ~~274~~0.0200 0.00 ~~109~~101,~~153~~524.0760 0.00 2019,~~304~~652,~~919~~868.7545 30-PO 0.00 0.00 0.00 0.00 ~~425~~424,~~394~~982.5590 B-1 ~~126~~0.8300 0.00 50,~~520~~534.0668 0.00 10,~~768~~743,~~771~~325.1638 B-2 550.4800 0.00 22,~~099~~106.6303 0.00 4,~~710~~699,~~720~~589.9385 B-3 390.6400 0.00 15,~~788~~792.1067 0.00 3,~~365~~357,~~364~~412.2818 B-4 180.4900 0.00 7,~~366~~368.5468 0.00 1,~~570~~566,~~240~~529.3195 B-5 180.4900 0.00 7,~~366~~368.5468 0.00 1,~~570~~566,~~240~~529.3195 B-6 180.5000 0.00 7,~~369~~371.2438 0.00 1,~~570~~567,~~815~~103.3462 A-R 0.00 0.00 0.1300 0.00 0.00 Totals ~~5,185~~0.1500 0.00 21,~~065~~977,~~441~~860.9663 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-1 145,561,000.00 5.00000% ~~924~~910.~~85607044~~96465365 3.~~85356696~~79568607 0.00000000 0.00000000 2-A-1 49,687,000.00 6.25000% ~~956~~895.~~90259283~~13939602 4.~~98386761~~66218427 0.00000000 0.00000000 3-A-1 96,968,000.00 6.00000% ~~844~~803.~~09205305~~66042004 4.~~22046025~~01830212 0.00000000 0.00000000 4-A-1 62,707,000.00 5.50000% ~~794~~753.~~86624827~~48380340 3.~~64313697~~45346740 0.00000000 0.00000000 4-A-2 30,342,800.00 5.25000% ~~794~~753.~~86624834~~48380341 3.~~47753998~~29649175 0.00000000 0.00000000 4-A-3 3,034,200.00 8.00000% ~~794~~753.~~86624810~~48380463 5.~~29910685~~02322523 0.00000000 0.00000000 5-A-1 41,491,000.00 6.50000% ~~807~~718.~~31105999~~67821166 43.~~37293485~~89284038 0.00000000 0.00000000 15-AX 0.00 5.00000% ~~867~~846.~~99415964~~85056291 3.~~61664219~~52854403 0.00000000 0.00000000 15-PO 764,332.68 0.00000% ~~757~~754.~~61523111~~48330955 0.00000000 0.00000000 0.00000000 30-AX 0.00 6.00000% ~~844~~783.~~43900423~~45614114 43.~~22219514~~91728075 0.00000000 0.00000000 30-PO 456,290.51 0.00000% ~~941~~932.~~88093020~~28883941 0.00000000 0.00000000 0.00000000 B-1 10,918,000.00 5.~~63053~~63125% ~~988~~986.~~64754442~~33185199 4.~~63884319~~62856567 0.00000000 0.00000000 B-2 4,776,000.00 5.~~63053~~63125% ~~988~~986.~~64754397~~33185302 4.~~63884213~~62856575 0.00000000 0.00000000 B-3 3,412,000.00 5.~~63053~~63125% ~~988~~986.~~64754396~~33185229 4.~~63884232~~62856682 0.00000000 0.00000000 B-4 1,592,000.00 5.~~63053~~63125% ~~988~~986.~~64754397~~33185302 4.~~63884422~~62856784 0.00000000 0.00000000 B-5 1,592,000.00 5.~~63053~~63125% ~~988~~986.~~64754397~~33185302 4.~~63884422~~62856784 0.00000000 0.00000000 B-6 1,592,583.00 5.~~63053~~63125% ~~988~~986.~~64754302~~33185209 4.~~63884143~~62856881 0.00000000 0.00000000 A-R 100.00 5.00000% 0.00000000 0.00000000 0.00000000 0.00000000 (5) Per $1 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.~~00964991~~00000000 0.00000000 3.~~84391705~~79568607 0.00000000 ~~910~~897.~~96465365~~98470751 2-A-1 0.~~01248033~~00000000 0.00000000 4.~~97138728~~66218427 0.00000000 ~~895~~872.~~13939602~~76055991 3-A-1 0.~~01056864~~00000000 0.00000000 4.~~20989161~~01830212 0.00000000 ~~803~~768.~~66042004~~25626464 4-A-1 0.~~00912290~~00000000 0.00000000 3.~~63401407~~45346740 0.00000000 ~~753~~733.~~48380340~~55928078 4-A-2 0.~~00870816~~00000000 0.00000000 3.~~46883149~~29649175 0.00000000 ~~753~~733.~~48380341~~55928062 4-A-3 0.~~01326874~~00000000 0.00000000 5.~~28583811~~02322523 0.00000000 ~~753~~733.~~48380463~~55928086 5-A-1 0.~~01095057~~00000000 0.00000000 43.~~36198453~~89284038 0.00000000 ~~718~~709.~~67821166~~97044082 15-AX 0.~~00905665~~00000000 0.00000000 3.~~60758555~~52854403 0.00000000 ~~846~~829.~~85056291~~13196629 15-PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~754~~751.~~48330955~~20051127 30-AX 0.~~01057294~~00000000 0.00000000 43.~~21162182~~91728075 0.00000000 ~~783~~758.~~45614114~~29703676 30-PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~932~~931.~~28883941~~38667293 B-1 0.~~01161660~~00000000 0.00000000 4.~~62722660~~62856567 0.00000000 ~~986~~984.~~33185199~~00122550 B-2 0.~~01161642~~00000000 0.00000000 4.~~62722571~~62856575 0.00000000 ~~986~~984.~~33185302~~00122487 B-3 0.~~01161782~~00000000 0.00000000 4.~~62722743~~62856682 0.00000000 ~~986~~984.~~33185229~~00122509 B-4 0.~~01161432~~00000000 0.00000000 4.~~62722362~~62856784 0.00000000 ~~986~~984.~~33185302~~00122487 B-5 0.~~01161432~~00000000 0.00000000 4.~~62722362~~62856784 0.00000000 ~~986~~984.~~33185302~~00122487 B-6 0.~~01161635~~00000000 0.00000000 4.~~62722508~~62856881 0.00000000 ~~986~~984.~~33185209~~00122317 A-R 0.00000000 0.00000000 10.~~30000000~~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 15-AX-1 5.00000% 14,~~373~~146,~~617~~872.5711 1413,~~146~~938,~~872~~024.1260 0.00 0.00 8988.~~91421294~~58682692% 15-AX-4 5.00000% 9,~~894~~529,~~172~~775.9676 9,~~529~~243,~~775~~238.7637 0.00 0.00 7775.~~95490977~~61099351% 15-PO-1 0.00000% 0.00 0.00 ~~192~~191,~~842~~993.7453 191,~~993~~076.5359 9796.~~23927386~~77486977% 15-PO-4 0.00000% 0.00 0.00 ~~386,227.34~~ 384,682.71 383,090.51 67.~~85864939~~57778275% 30-AX-2 6.00000% 4,~~559~~255,~~238~~083.0293 4,~~255~~151,~~083~~156.9324 0.00 0.00 8583.~~26910722~~18646408% 30-AX-3 6.00000% 1312,~~610~~854,~~891~~345.0729 12,~~854~~336,~~345~~716.2945 0.00 0.00 7875.~~82442525~~65026158% 30-AX-5 6.00000% 3,~~715~~195,~~290~~490.2853 3,~~195~~164,~~490~~995.5375 0.00 0.00 6968.~~17600738~~51585611% 30-PO-2 0.00000% 0.00 0.00 ~~148~~144,~~442~~346.0104 144,~~346~~227.0411 96.~~83841897~~75863159% 30-PO-3 0.00000% 0.00 0.00 33,~~192~~157.3964 33,~~157~~114.6436 99.~~19133564~~06186318% 30-PO-5 0.00000% 0.00 0.00 ~~248~~247,~~136~~890.9386 247,~~890~~641.8643 90.~~53591275~~44481470%

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 1810,~~762~~728,~~745~~032.4103 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) ~~113~~132,~~099~~746.3668 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 1810,~~875~~860,~~844~~778.7771 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee ~~119~~114,~~690~~232.1461 Payment of Interest and Principal 1810,~~792~~746,~~624~~546.6710 Total Withdrawals (Pool Distribution Amount) 1810,~~912~~860,~~314~~778.8171 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall ~~5,185~~0.1500 Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall ~~5,185~~0.1500

SERVICING FEES Gross Servicing Fee 8379,~~115~~630.1341 Miscellaneous Fee 3634,~~470~~497.0427 Wells Fargo Bank, N.A. 104.9793 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~119~~114,~~690~~232.1461

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 2 0 0 2 ~~294~~293,~~087~~288.5392 0.00 0.00 ~~294~~293,~~087~~288.5392 30 Days 4356 02 0 0 4358 910,~~825~~003,~~336~~435.3854 0204,699.0063 0.00 0.00 910,~~825~~208,~~336~~135.3817 60 Days 107 10 0 0 117 2,~~931~~969,~~095~~331.5198 ~~422,922~~0.2700 0.00 0.00 32,~~354~~969,~~017~~331.7898 90 Days 48 01 0 0 49 ~~582~~2,~~129~~539,091.8476 0422,922.0027 0.00 0.00 ~~582~~2,~~129~~962,014.8403 120 Days 0 0 1 0 1 0.00 0.00 ~~495~~88,~~853~~673.3179 0.00 ~~495~~88,~~853~~673.3179 150 Days 0 0 51 0 51 0.00 0.00 1495,~~994,656~~853.6831 0.00 1495,~~994,656~~853.6831 180+ Days 0 0 15 0 15 0.00 0.00 991,~~580~~994,656.9768 0.00 991,~~580~~994,656.9768 Totals 5771 35 7 0 6783 1315,~~338~~511,~~561~~859.7328 ~~717~~920,~~009~~910.8082 2,~~590~~579,~~090~~183.9678 0.00 1619,~~645~~011,~~662~~953.4988 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.~~081666~~083022% 0.000000% 0.000000% 0.~~081666~~083022% 0.~~076879~~078456% 0.000000% 0.000000% 0.~~076879~~078456% 30 Days 12.~~755819~~324616% 0.~~000000~~083022% 0.000000% 0.000000% 12.~~755819~~407638% 2.~~568511~~675966% 0.~~000000~~054758% 0.000000% 0.000000% 2.~~568511~~730724% 60 Days 0.~~408330~~290577% 0.~~040833~~000000% 0.000000% 0.000000% 0.~~449163~~290577% 0.~~766238~~794310% 0.~~110559~~000000% 0.000000% 0.000000% 0.~~876797~~794310% 90 Days 0.~~163332~~332088% 0.~~000000~~041511% 0.000000% 0.000000% 0.~~163332~~373599% 0.~~152179~~679219% 0.~~000000~~113134% 0.000000% 0.000000% 0.~~152179~~792353% 120 Days 0.000000% 0.000000% 0.~~040833~~041511% 0.000000% 0.~~040833~~041511% 0.000000% 0.000000% 0.~~129625~~023721% 0.000000% 0.~~129625~~023721% 150 Days 0.000000% 0.000000% 0.~~204165~~041511% 0.000000% 0.~~204165~~041511% 0.000000% 0.000000% 0.~~521437~~132643% 0.000000% 0.~~521437~~132643% 180+ Days 0.000000% 0.000000% 0.~~040833~~207555% 0.000000% 0.~~040833~~207555% 0.000000% 0.000000% 0.~~026032~~533580% 0.000000% 0.~~026032~~533580% Totals 2.~~327481~~947281% 0.~~122499~~207555% 0.~~285831~~290577% 0.000000% 23.~~735811~~445413% 34.~~486928~~149495% 0.~~187439~~246348% 0.~~677094~~689944% 0.000000% 45.~~351460~~085786%

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 713 0 0 0 713 ~~851~~1,~~183~~080,705.0192 0.00 0.00 0.00 ~~851~~1,~~183~~080,705.0192 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 713 0 0 0 713 ~~851~~1,~~183~~080,705.0192 0.00 0.00 0.00 ~~851~~1,~~183~~080,705.0192 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 01.~~573770~~073493% 0.000000% 0.000000% 0.000000% 01.~~573770~~073493% 0.~~603150~~776232% 0.000000% 0.000000% 0.000000% 0.~~603150~~776232% 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 01.~~573770~~073493% 0.000000% 0.000000% 0.000000% 01.~~573770~~073493% 0.~~603150~~776232% 0.000000% 0.000000% 0.000000% 0.~~603150~~776232% 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 610 0 0 0 610 12,~~349~~142,~~786~~459.5707 0.00 0.00 0.00 12,~~349~~142,~~786~~459.5707 60 Days 20 0 0 0 20 ~~478,571~~0.5100 0.00 0.00 0.00 ~~478,571~~0.5100 90 Days 01 0 0 0 01 0310,574.0022 0.00 0.00 0.00 0310,574.0022 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 10 0 10 0.00 0.00 ~~243,847~~0.0900 0.00 ~~243,847~~0.0900 180 Days 0 0 1 0 1 0.00 0.00 99243,~~580~~847.9709 0.00 99243,~~580~~847.9709 Totals 811 0 21 0 1012 12,~~828~~453,~~358~~033.0829 0.00 ~~343~~243,~~428~~847.0609 0.00 2,~~171~~696,~~786~~880.1438 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 24.~~469136~~219409% 0.000000% 0.000000% 0.000000% 24.~~469136~~219409% 24.~~847260~~628081% 0.000000% 0.000000% 0.000000% 24.~~847260~~628081% 60 Days 0.~~823045~~000000% 0.000000% 0.000000% 0.000000% 0.~~823045~~000000% 10.~~009506~~000000% 0.000000% 0.000000% 0.000000% 10.~~009506~~000000% 90 Days 0.~~000000~~421941% 0.000000% 0.000000% 0.000000% 0.~~000000~~421941% 0.~~000000~~670894% 0.000000% 0.000000% 0.000000% 0.~~000000~~670894% 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.~~411523~~000000% 0.000000% 0.~~411523~~000000% 0.000000% 0.000000% 0.~~514375~~000000% 0.000000% 0.~~514375~~000000% 180 Days 0.000000% 0.000000% 0.~~411523~~421941% 0.000000% 0.~~411523~~421941% 0.000000% 0.000000% 0.~~210058~~526752% 0.000000% 0.~~210058~~526752% Totals 34.~~292181~~641350% 0.000000% 0.~~823045~~421941% 0.000000% 45.~~115226~~063291% 35.~~856766~~298974% 0.000000% 0.~~724432~~526752% 0.000000% 45.~~581198~~825726% 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 1 0 0 1 132,~~246~~150.6756 0.00 0.00 132,~~246~~150.6756 30 Days 1619 02 0 0 1621 23,~~735~~038,~~563~~584.1394 0204,699.0063 0.00 0.00 23,~~735~~243,~~563~~284.1357 60 Days 30 0 0 0 30 ~~417,079~~0.4300 0.00 0.00 0.00 ~~417,079~~0.4300 90 Days 43 0 0 0 43 ~~582~~324,~~129~~150.8408 0.00 0.00 0.00 ~~582~~324,~~129~~150.8408 120 Days 0 0 01 0 01 0.00 0.00 088,673.0079 0.00 088,673.0079 150 Days 0 0 10 0 10 0.00 0.00 ~~137,420~~0.9400 0.00 ~~137,420~~0.9400 180 Days 0 0 01 0 01 0.00 0.00 0137,420.0094 0.00 0137,420.0094 Totals 2322 13 12 0 2527 3,~~734~~362,~~772~~735.4002 ~~132~~336,~~246~~850.6719 ~~137~~226,~~420~~094.9473 0.00 43,~~004~~925,~~440~~679.0194 0-29 Days 0.~~183150~~189036% 0.000000% 0.000000% 0.~~183150~~189036% 0.~~158630~~165323% 0.000000% 0.000000% 0.~~158630~~165323% 30 Days 23.~~930403~~591682% 0.~~000000~~378072% 0.000000% 0.000000% 23.~~930403~~969754% 3.~~281302~~801333% 0.~~000000~~256083% 0.000000% 0.000000% 34.~~281302~~057416% 60 Days 0.~~549451~~000000% 0.000000% 0.000000% 0.000000% 0.~~549451~~000000% 0.~~500286~~000000% 0.000000% 0.000000% 0.000000% 0.~~500286~~000000% 90 Days 0.~~732601~~567108% 0.000000% 0.000000% 0.000000% 0.~~732601~~567108% 0.~~698263~~405518% 0.000000% 0.000000% 0.000000% 0.~~698263~~405518% 120 Days 0.000000% 0.000000% 0.~~000000~~189036% 0.000000% 0.~~000000~~189036% 0.000000% 0.000000% 0.~~000000~~110933% 0.000000% 0.~~000000~~110933% 150 Days 0.000000% 0.000000% 0.~~183150~~000000% 0.000000% 0.~~183150~~000000% 0.000000% 0.000000% 0.~~164836~~000000% 0.000000% 0.~~164836~~000000% 180 Days 0.000000% 0.000000% 0.~~000000~~189036% 0.000000% 0.~~000000~~189036% 0.000000% 0.000000% 0.~~000000~~171916% 0.000000% 0.~~000000~~171916% Totals 4.~~212454~~158790% 0.~~183150~~567108% 0.~~183150~~378072% 0.000000% 45.~~578755~~103970% 4.~~479851~~206851% 0.~~158630~~421407% 0.~~164836~~282849% 0.000000% 4.~~803317~~911107% 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 1 0 0 1 161,~~840~~138.8636 0.00 0.00 161,~~840~~138.8636 30 Days 611 0 0 0 611 12,~~342,~~490,763.9242 0.00 0.00 0.00 12,~~342,~~490,763.9242 60 Days 2 0 0 0 2 ~~301~~490,~~434~~180.5955 0.00 0.00 0.00 ~~301~~490,~~434~~180.5955 90 Days 01 0 0 0 01 0170,357.0048 0.00 0.00 0.00 0170,357.0048 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 814 1 0 0 915 13,~~643~~151,~~925~~301.5145 161,~~840~~138.8636 0.00 0.00 13,~~805~~312,~~766~~439.3781 0-29 Days 0.~~270270~~275482% 0.000000% 0.000000% 0.~~270270~~275482% 0.~~206878~~211118% 0.000000% 0.000000% 0.~~206878~~211118% 30 Days 13.~~621622~~030303% 0.000000% 0.000000% 0.000000% 13.~~621622~~030303% 13.~~716076~~263306% 0.000000% 0.000000% 0.000000% 13.~~716076~~263306% 60 Days 0.~~540541~~550964% 0.000000% 0.000000% 0.000000% 0.~~540541~~550964% 0.~~385317~~642216% 0.000000% 0.000000% 0.000000% 0.~~385317~~642216% 90 Days 0.~~000000~~275482% 0.000000% 0.000000% 0.000000% 0.~~000000~~275482% 0.~~000000~~223196% 0.000000% 0.000000% 0.000000% 0.~~000000~~223196% 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.~~162162~~856749% 0.~~270270~~275482% 0.000000% 0.000000% 24.~~432432~~132231% 24.~~101393~~128718% 0.~~206878~~211118% 0.000000% 0.000000% 24.~~308271~~339836% 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 83 0 0 0 8 3 1,~~546~~250,~~312~~922.7519 0.00 0.00 0.00 31,~~546~~250,~~312~~922.7519 60 Days 5 0 0 0 5 2,479,151.43 0.00 0.00 0.00 2,479,151.43 90 Days 3 1 0 0 4 1,734,009.98 422,922.27 0.00 0.00 2,156,932.25 90120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 ~~120~~150 Days 0 0 1 0 1 0.00 0.00 495,853.31 0.00 495,853.31 ~~150~~180 Days 0 0 3 0 3 0.00 0.00 1,613,388.65 0.00 1,613,388.65 ~~180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00~~ Totals 11 1 4 0 16 5,~~280~~464,~~322~~083.7360 422,922.27 2,109,241.96 0.00 7,~~812~~996,~~486~~247.9683 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 114.~~428571~~347826% 0.000000% 0.000000% 0.000000% 114.~~428571~~347826% 103.~~944544~~903398% 0.000000% 0.000000% 0.000000% 103.~~944544~~903398% 60 Days 47.~~285714~~246377% 10.~~428571~~000000% 0.000000% 0.000000% 57.~~714286~~246377% 57.~~351459~~735984% 10.~~305212~~000000% 0.000000% 0.000000% 67.~~656672~~735984% 90 Days 04.~~000000~~347826% 01.~~000000~~449275% 0.000000% 0.000000% 05.~~000000~~797101% 05.~~000000~~410832% 01.~~000000~~319693% 0.000000% 0.000000% 06.~~000000~~730526% 120 Days 0.000000% 0.000000% 10.~~428571~~000000% 0.000000% 10.~~428571~~000000% 0.000000% 0.000000% 10.~~530290~~000000% 0.000000% 10.~~530290~~000000% 150 Days 0.000000% 0.000000% 41.~~285714~~449275% 0.000000% 41.~~285714~~449275% 0.000000% 0.000000% 41.~~979201~~547269% 0.000000% 41.~~979201~~547269% 180 Days 0.000000% 0.000000% 04.~~000000~~347826% 0.000000% 04.~~000000~~347826% 0.000000% 0.000000% 05.~~000000~~034444% 0.000000% 05.~~000000~~034444% Totals 15.~~714286~~942029% 1.~~428571~~449275% 5.~~714286~~797101% 0.000000% 2223.~~857143~~188406% 1617.~~296003~~050214% 1.~~305212~~319693% 6.~~509491~~581712% 0.000000% 24.~~110707~~951620%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance ~~113~~132,~~099~~746.3668

CREDIT ENHANCEMENT Original $ Original % Current $ Current % Bankruptcy 121,555.44 0.02672169% 121,555.44 0.~~03183899~~03258745% Fraud 9,097,886.13 2.00000000% 9,097,886.13 2.~~38300740~~43902647% Special Hazard 4,548,943.06 1.00000000% 4,548,943.06 1.~~19150370~~21951323% Limit of Subordinate's Exposure to Certain Types of Losses

COLLATERAL STATEMENT Collateral Description Fixed 15 & 30 Year Weighted Average Gross Coupon 6.~~595539~~575779% Weighted Average Pass-Through Rate 6.~~235125~~216728% Weighted Average Maturity(Stepdown Calculation ) ~~251~~250 Beginning Scheduled Collateral Loan Count 2,~~501~~449 Number Of Loans Paid In Full 5240 Ending Scheduled Collateral Loan Count 2,~~449~~409 Beginning Scheduled Collateral Balance ~~398~~381,~~508~~781,~~882~~699.1240 Ending Scheduled Collateral Balance ~~381~~373,~~781~~013,~~699~~013.4095 Ending Actual Collateral Balance at 3130-~~Oct~~Nov-2003 ~~382~~373,~~530~~825,~~503~~255.8364 Monthly P &I Constant 3,~~135~~017,~~523~~324.8702 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Non-PO Optimal Amount 1810,~~197~~174,~~090~~146.4837 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~381~~373,~~781~~013,~~699~~013.4095 Scheduled Principal ~~945~~925,~~206~~230.4961 Unscheduled Principal 157,~~781~~843,~~976~~454.2384

COLLATERAL STATEMENT Collateral Description Fixed 15 & 30 Year Weighted Average Coupon Rate 6.~~595539~~575779% Weighted Average Net Rate 6.~~345261~~325488% Weighted Average Pass Through Rate 6.~~235125~~216728% Weighted Average Maturity ~~251~~250 Record Date 1011/3130/2003 Principal and Interest Constant 3,~~135~~017,~~523~~324.8702 Beginning Loan Count 2,~~501~~449 Loans Paid in Full 5240 Ending Loan Count 2,~~449~~409 Beginning Scheduled Balance ~~398~~381,~~508~~781,~~882~~699.1240 Ending Scheduled Balance ~~381~~373,~~781~~013,~~699~~013.4095 Ending Actual Balance at 3130-~~Oct~~Nov-2003 ~~382~~373,~~530~~825,~~503~~255.8364 Scheduled Principal ~~945~~925,~~206~~230.4961 Unscheduled Principal 157,~~781~~843,~~976~~454.2384 Scheduled Interest 2,~~190~~092,~~317~~093.3841 Servicing Fee 8379,~~115~~630.1341 Master Servicing Fee 104.9793 Trustee Fee 0.00 FRY Amount 0.00 Special Hazard Fee 0.00 Other Fee 3634,~~470~~497.0427 Pool Insurance Fee 0.00 Spread 1 0.00 Spread 2 0.00 Spread 3 0.00 Net Interest 21,~~070~~977,~~627~~860.2480 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Percentage of Cumulative Losses 0.0000 Special Servicing Fee 0.00 Prepayment Penalties 0.00

Group Level Collateral Statement Group 1 2 3 Collateral Description Fixed 10 Year Fixed 30 Year Fixed 20 Year Weighted Average Coupon Rate 5.~~746726~~745950 7.~~068234~~067107 7.~~558777~~554938 Weighted Average Net Rate 5.~~496726~~495950 6.~~816315~~815064 7.~~308779~~304938 Weighted Average Maturity ~~170~~169 ~~352~~ 351 350 Beginning Loan Count 1,~~227~~220 ~~250~~243 ~~567~~546 Loans Paid In Full 79 76 2117 Ending Loan Count 1,~~220~~211 ~~243~~237 ~~546~~529 Beginning Scheduled Balance ~~142~~140,~~742~~688,~~144~~707.0253 5047,~~444~~368,~~158~~938.2827 8783,~~237~~312,~~469~~666.0158 Ending scheduled Balance ~~140~~138,~~688~~767,~~707~~665.5333 4746,~~368~~254,~~938~~571.2715 8379,~~312~~875,~~666~~327.5881 Record Date 1011/3130/2003 1011/3130/2003 1011/3130/2003 Principal And Interest Constant 1,~~233~~221,~~595~~641.1556 ~~339~~318,~~240~~803.4760 ~~617~~590,~~832~~323.0206 Scheduled Principal ~~550~~547,~~011~~982.8598 4239,~~114~~835.5482 6865,~~324~~804.8767 Unscheduled Principal 1,~~503~~373,~~424~~059.6422 31,~~033~~074,~~105~~531.4730 3,~~856~~371,~~477~~534.5610 Scheduled Interest ~~683~~673,~~583~~658.3058 ~~297~~278,~~125~~967.9378 ~~549~~524,~~507~~518.1539 Servicing Fees 29,~~737~~310.9514 109,~~589~~949.8917 1817,~~174~~356.3686 Master Servicing Fees 0.00 104.9793 0.00 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 0.00 1,~~678~~676.0793 2726,~~256~~492.7131 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 ~~653~~644,~~845~~348.3544 ~~284~~267,~~753~~236.0075 ~~504~~480,~~076~~669.0822 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.~~496726~~495950 6.~~773899~~769924 6.~~933846~~923354

Group Level Collateral Statement Group 4 5 Total Collateral Description Fixed 15 Year Fixed 30 Year Fixed 15 & 30 Year Weighted Average Coupon Rate 6.~~335939~~342657 7.~~554843~~505355 6.~~595539~~575779 Weighted Average Net Rate 6.~~085765~~092475 7.~~304843~~255355 6.~~345261~~325488 Weighted Average Maturity ~~171~~170 ~~352~~351 ~~251~~250 Beginning Loan Count ~~379~~370 7870 2,~~501~~449 Loans Paid In Full 97 81 5240 Ending Loan Count ~~370~~363 7069 2,~~449~~409 Beginning Scheduled Balance 8278,~~035~~041,~~373~~161.9529 3632,~~049~~370,~~736~~225.8673 ~~398~~381,~~508~~781,~~882~~699.1240 Ending scheduled Balance 7876,~~041~~108,~~161~~597.2966 32,~~370~~006,~~225~~852.7300 ~~381~~373,~~781~~013,~~699~~013.4095 Record Date 1011/3130/2003 1011/3130/2003 1011/3130/2003 Principal And Interest Constant ~~689~~658,~~707~~331.9769 ~~255~~228,~~148~~224.2611 3,~~135~~017,~~523~~324.8702 Scheduled Principal ~~256~~245,~~565~~841.3840 2825,~~189~~765.8574 ~~945~~925,~~206~~230.4961 Unscheduled Principal 31,~~737~~686,~~647~~722.2823 3337,~~651,321~~607.2899 157,~~781~~843,~~976~~454.2384 Scheduled Interest ~~433~~412,~~142~~490.5929 ~~226~~202,~~958~~458.4137 2,~~190~~092,~~317~~093.3841 Servicing Fees 1716,~~102~~270.5943 76,~~510~~743.3481 8379,~~115~~630.1341 Master Servicing Fees 0.00 0.00 104.9793 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 ~~588~~586.9892 65,~~946~~741.2811 3634,~~470~~497.0427 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 ~~415~~395,~~451~~632.0294 ~~212~~189,~~501~~973.7945 21,~~070~~977,~~627~~860.2480 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 6.~~077149~~083450 7.~~073620~~042526 6.~~235125~~216728

Miscellaneous Reporting Group 1 Group 1 Senior Percentage 94.~~439589~~380091% Group 1 Subordinate Percentage 5.~~560411~~619909% Group 1 Senior Prepayment Percentage 100.000000% Group 2 Group 2 Senior Percentage 94.~~532144~~181419% Group 2 Subordinate Percentage 5.~~467856~~818581% Group 2 Senior Prepayment Percentage 100.000000% Group 3 Group 3 Senior Percentage 93.~~859982~~575652% Group 3 Subordinate Percentage 6.~~140018~~424348% Group 3 Senior Prepayment Percentage 100.000000%

Miscellaneous Reporting Group 4 Group 4 Senior Percentage 93.~~539163~~228201% Group 4 Subordinate Percentage 6.~~460837~~771799% Group 4 Senior Prepayment Percentage 100.000000% Group 5 Group 5 Senior Percentage 9392.~~560464~~828488% Group 5 Subordinate Percentage ~~643~~717.~~953551~~151227% Group 5 Senior Prepayment Percentage 100.000000%

Filing Compare · MORTGAGE ASSET SEC TRANS ALTER LN SER 2003-4