8-K 1 mal03003.txt SEPTEMBER 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): September 25, 2003 MASTR ALTERNATIVE LOAN TRUST Mortgage Pass-Through Certificates, Series 2003-3 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-101254-05 54-2120386 Pooling and Servicing Agreement) (Commission 54-2120387 (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 September 25, 2003 a distribution was made to holders of MASTR ALTERNATIVE LOAN TRUST, Mortgage Pass-Through Certificates, Series 2003-3 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 2003-3 Trust, relating to the September 25, 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 2003-3 Trust By: Wells Fargo Bank Minnesota, N.A., as Master Servicer By: /s/ Beth Belfield, Assistant Vice President By: Beth Belfield, Assistant Vice President Date: 9/25/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-3 Trust, relating to the September 25, 2003 distribution. EX-99.1

MASTR Alternative Loan Trust Mortgage Pass-Through Certificates Record Date: 78/31/03 Distribution Date: 89/25/03 MAL Series: 2003-3 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-A1 576434DT8 SEN 6.50000% 6965,~~159~~645,~~300~~927.3248 ~~373~~355,~~973~~582.4111 31,~~513~~520,~~372~~073.8469 A-R 576434EB6 RES 6.00000% 0.00 0.00 0.00 2-A1 576434DV3 SEN 8.50000% 6261,~~855~~852,~~710~~670.0636 ~~444~~438,~~467~~123.9308 1995,~~003,039~~857.7190 2-A2 576434DW1 SEN 4.50000% ~~104~~103,~~759~~087,~~516~~783.7793 ~~392~~386,~~177~~579.5919 1,~~671~~659,~~732~~763.8417 2-A3 576434DX9 SEN 6.00000% ~~106~~86,~~707~~656,~~328~~263.4397 ~~532~~433,~~625~~281.8932 2018,~~051~~528,~~064~~969.45 2-A4 576434DY7 SEN 6.00000% 0.00 0.00 0.00 2-A5 576434DZ4 SEN 6.00000% 10,690,000.00 53,~~358~~450.7600 0.00 2-PO 576434EA8 PO 0.00000% 1,~~676~~567,~~859~~218.2030 0.00 ~~109~~72,~~640~~967.9014 A-X 576434DU5 IO 6.00000% 0.00 ~~219~~207,~~653~~764.3454 0.00 B1 576434EC4 SUB 6.~~09352~~09353% 13,~~084~~072,~~167~~476.5573 66,~~327~~381.1228 11,~~690~~682.8143 B2 576434ED2 SUB 6.~~09352~~09353% 6,~~541~~535,~~585~~740.1014 33,~~161~~188.0311 5,~~844~~840.9677 B3 576434EE0 SUB 6.~~09352~~09353% 4,~~361~~357,~~389~~492.1824 22,~~109~~127.0409 3,~~896~~894.9414 B4 576434EF7 SUB 6.~~09352~~09353% 2,~~398~~396,~~614~~471.4527 12,~~159~~169.2114 2,~~143~~141.1865 B5 576434EG5 SUB 6.~~09352~~09353% 1,~~962~~961,~~774~~020.7398 9,~~949~~957.8395 1,~~753~~752.7650 B6 576434EH3 SUB 6.~~09352~~09353% 2,~~181~~179,~~530~~581.3715 11,~~058~~067.7679 1,~~949~~947.2182 Totals ~~386~~360,~~378~~002,~~776~~646.1655 2,~~171~~029,~~021~~671.9160 2622,~~376~~804,~~129~~890.6066

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses 1-A1 0.00 6564,~~645~~125,~~927~~853.4879 31,~~887~~875,~~346~~655.2580 0.00 A-R 0.00 0.00 0.00 0.00 2-A1 0.00 6160,~~852~~856,~~670~~812.3646 1,~~447~~433,~~507~~980.6498 0.00 2-A2 0.00 ~~103~~101,~~087~~428,~~783~~020.9376 2,~~063~~046,~~910~~342.4336 0.00 2-A3 0.00 8668,~~656~~127,~~263~~294.9753 2018,~~583~~962,~~690~~250.3477 0.00 2-A4 0.00 0.00 0.00 0.00 2-A5 0.00 10,690,000.00 53,~~358~~450.7600 0.00 2-PO 0.00 1,~~567~~494,~~218~~251.3016 ~~109~~72,~~640~~967.9014 0.00 A-X 0.00 0.00 ~~219~~207,~~653~~764.3454 0.00 B1 0.00 13,~~072~~060,~~476~~794.7330 78,~~017~~063.9371 0.00 B2 0.00 6,~~535~~529,~~740~~899.1437 39,~~005~~028.9988 0.00 B3 0.00 4,~~357~~353,~~492~~598.2410 26,~~005~~021.9823 0.00 B4 0.00 2,~~396~~394,~~471~~329.2762 14,~~302~~310.3979 0.00 B5 0.00 1,~~961~~959,~~020~~268.9848 11,~~703~~710.5945 0.00 B6 0.00 2,~~179~~177,~~581~~633.1534 13,~~007~~015.9761 0.00 Totals 0.00 ~~360~~337,~~002~~197,~~646~~755.5591 2824,~~547~~834,~~151~~562.5126 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-A1 76,038,000.00 6965,~~159~~645,~~300~~927.3248 5351,~~994~~656.9136 31,~~459~~468,~~377~~417.9333 0.00 0.00 A-R 100.00 0.00 0.00 0.00 0.00 0.00 2-A1 65,908,125.00 6261,~~855~~852,~~710~~670.0636 11,~~566~~321.2560 ~~991~~984,~~473~~536.4530 0.00 0.00 2-A2 109,846,875.00 ~~104~~103,~~759~~087,~~516~~783.7793 1918,~~277~~869.0933 1,~~652~~640,~~455~~893.7584 0.00 0.00 2-A3 135,290,000.00 ~~106~~86,~~707~~656,~~328~~263.4397 ~~231~~210,~~212~~650.8705 1918,~~819~~318,~~851~~319.5840 0.00 0.00 2-A4 7,105,000.00 0.00 0.00 0.00 0.00 0.00 2-A5 10,690,000.00 10,690,000.00 0.00 0.00 0.00 0.00 2-PO 1,810,154.00 1,~~676~~567,~~859~~218.2030 2,~~687~~400.3206 ~~106~~70,~~953~~567.5808 0.00 0.00 A-X 0.00 0.00 0.00 0.00 0.00 0.00 B1 13,119,000.00 13,~~084~~072,~~167~~476.5573 11,~~690~~682.8143 0.00 0.00 0.00 B2 6,559,000.00 6,~~541~~535,~~585~~740.1014 5,~~844~~840.9677 0.00 0.00 0.00 B3 4,373,000.00 4,~~361~~357,~~389~~492.1824 3,~~896~~894.9414 0.00 0.00 0.00 B4 2,405,000.00 2,~~398~~396,~~614~~471.4527 2,~~143~~141.1865 0.00 0.00 0.00 B5 1,968,000.00 1,~~962~~961,~~774~~020.7398 1,~~753~~752.7650 0.00 0.00 0.00 B6 2,187,338.00 2,~~181~~179,~~530~~581.3715 1,~~949~~947.2182 0.00 0.00 0.00 Totals 437,299,592.00 ~~386~~360,~~378~~002,~~776~~646.1655 ~~346~~322,~~017~~156.3071 2622,~~030~~482,~~112~~733.2995 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-A1 31,~~513~~520,~~372~~073.8469 6564,~~645~~125,~~927~~853.4879 0.~~86333054~~84333956 31,~~513~~520,~~372~~073.8469 A-R 0.00 0.00 0.00000000 0.00 2-A1 1995,~~003,039~~857.7190 6160,~~852~~856,~~670~~812.3646 0.~~93846806~~92335827 1995,~~003,039~~857.7190 2-A2 1,~~671~~659,~~732~~763.8417 ~~103~~101,~~087~~428,~~783~~020.9376 0.~~93846806~~92335827 1,~~671~~659,~~732~~763.8417 2-A3 2018,~~051~~528,~~064~~969.45 8668,~~656~~127,~~263~~294.9753 0.~~64052231~~50356489 2018,~~051~~528,~~064~~969.45 2-A4 0.00 0.00 0.00000000 0.00 2-A5 0.00 10,690,000.00 1.00000000 0.00 2-PO ~~109~~72,~~640~~967.9014 1,~~567~~494,~~218~~251.3016 0.~~86579280~~82548289 ~~109~~72,~~640~~967.9014 A-X 0.00 0.00 0.00000000 0.00 B1 11,~~690~~682.8143 13,~~072~~060,~~476~~794.7330 0.~~99645375~~99556325 11,~~690~~682.8143 B2 5,~~844~~840.9677 6,~~535~~529,~~740~~899.1437 0.~~99645375~~99556325 5,~~844~~840.9677 B3 3,~~896~~894.9414 4,~~357~~353,~~492~~598.2410 0.~~99645375~~99556325 3,~~896~~894.9414 B4 2,~~143~~141.1865 2,~~396~~394,~~471~~329.2762 0.~~99645375~~99556325 2,~~143~~141.1865 B5 1,~~753~~752.7650 1,~~961~~959,~~020~~268.9848 0.~~99645375~~99556325 1,~~753~~752.7650 B6 1,~~949~~947.2182 2,~~179~~177,~~581~~633.1534 0.~~99645375~~99556326 1,~~949~~947.2182 Totals 2622,~~376~~804,~~129~~890.6066 ~~360~~337,~~002~~197,~~646~~755.5591 0.~~82324030~~77109095 2622,~~376~~804,~~129~~890.6066

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion 1-A1 76,038,000.00 ~~909~~863.~~53602567~~33053842 0.~~71010429~~67934927 4519.~~49538297~~31162485 0.00000000 A-R 100.00 0.00000000 0.00000000 0.00000000 0.00000000 2-A1 65,908,125.00 ~~953~~938.~~68681873~~46806232 0.~~17549050~~17177852 1514.~~04326591~~93801106 0.00000000 2-A2 109,846,875.00 ~~953~~938.~~68681876~~46806229 0.~~17549056~~17177849 1514.~~04326591~~93801112 0.00000000 2-A3 135,290,000.00 ~~788~~640.~~73034541~~52231481 1.~~70901670~~55702602 ~~146~~135.~~49901382~~40039471 0.00000000 2-A4 7,105,000.00 0.00000000 0.00000000 0.00000000 0.00000000 2-A5 10,690,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 2-PO 1,810,154.00 ~~926~~865.~~36272936~~79279995 1.~~48458087~~32588719 5938.~~08534854~~98402014 0.00000000 A-X 0.00 0.00000000 0.00000000 0.00000000 0.00000000 B1 13,119,000.00 ~~997~~996.~~34488528~~45374876 0.~~89113576~~89049699 0.00000000 0.00000000 B2 6,559,000.00 ~~997~~996.~~34488489~~45374905 0.~~89113584~~89049703 0.00000000 0.00000000 B3 4,373,000.00 ~~997~~996.~~34488452~~45374800 0.~~89113652~~89049623 0.00000000 0.00000000 B4 2,405,000.00 ~~997~~996.~~34488565~~45375052 0.~~89113514~~89049896 0.00000000 0.00000000 B5 1,968,000.00 ~~997~~996.~~34488313~~45375000 0.~~89113821~~89049797 0.00000000 0.00000000 B6 2,187,338.00 ~~997~~996.~~34488680~~45374880 0.~~89113342~~89049795 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-A1 0.00000000 4619.~~20548726~~99097412 ~~863~~843.~~33053842~~33956430 0.~~86333054~~84333956 4619.~~20548726~~99097412 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A1 0.00000000 15.~~21875656~~10978957 ~~938~~923.~~46806232~~35827275 0.~~93846806~~92335827 15.~~21875656~~10978957 2-A2 0.00000000 15.~~21875647~~10978960 ~~938~~923.~~46806229~~35827269 0.~~93846806~~92335827 15.~~21875647~~10978960 2-A3 0.00000000 ~~148~~136.~~20803053~~95742073 ~~640~~503.~~52231481~~56489415 0.~~64052231~~50356489 ~~148~~136.~~20803053~~95742073 2-A4 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A5 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 2-PO 0.00000000 6040.~~56992941~~30990733 ~~865~~825.~~79279995~~48289262 0.~~86579280~~82548289 6040.~~56992941~~30990733 A-X 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B1 0.00000000 0.~~89113576~~89049699 ~~996~~995.~~45374876~~56325177 0.~~99645375~~99556325 0.~~89113576~~89049699 B2 0.00000000 0.~~89113584~~89049703 ~~996~~995.~~45374905~~56325202 0.~~99645375~~99556325 0.~~89113584~~89049703 B3 0.00000000 0.~~89113652~~89049623 ~~996~~995.~~45374800~~56325177 0.~~99645375~~99556325 0.~~89113652~~89049623 B4 0.00000000 0.~~89113514~~89049896 ~~996~~995.~~45375052~~56325156 0.~~99645375~~99556325 0.~~89113514~~89049896 B5 0.00000000 0.~~89113821~~89049797 ~~996~~995.~~45375000~~56325203 0.~~99645375~~99556325 0.~~89113821~~89049797 B6 0.00000000 0.~~89113342~~89049795 ~~996~~995.~~45374880~~56325543 0.~~99645375~~99556326 0.~~89113342~~89049795 (3) Amount Does Not Include Excess Special Hazard, Bankrupcy, 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-A1 76,038,000.00 6.50000% 6965,~~159~~645,~~300~~927.3248 ~~374~~355,~~612~~582.8811 0.00 0.00 A-R 100.00 6.00000% 0.00 0.00 0.00 0.00 2-A1 65,908,125.00 8.50000% 6261,~~855~~852,~~710~~670.0636 ~~445~~438,~~227~~123.9508 0.00 0.00 2-A2 109,846,875.00 4.50000% ~~104~~103,~~759~~087,~~516~~783.7793 ~~392~~386,~~848~~579.19 0.00 0.00 2-A3 135,290,000.00 6.00000% ~~106~~86,~~707~~656,~~328~~263.4397 ~~533~~433,~~536~~281.6432 0.00 0.00 2-A4 7,105,000.00 6.00000% 0.00 0.00 0.00 0.00 2-A5 10,690,000.00 6.00000% 10,690,000.00 53,450.00 0.00 0.00 2-PO 1,810,154.00 0.00000% 1,~~676~~567,~~859~~218.2030 0.00 0.00 0.00 A-X 0.00 6.00000% 4441,~~005~~552,~~785~~907.8491 ~~220~~207,~~028~~764.9354 0.00 0.00 B1 13,119,000.00 6.~~09352~~09353% 13,~~084~~072,~~167~~476.5573 66,~~440~~381.5328 0.00 0.00 B2 6,559,000.00 6.~~09352~~09353% 6,~~541~~535,~~585~~740.1014 33,~~217~~188.7311 0.00 0.00 B3 4,373,000.00 6.~~09352~~09353% 4,~~361~~357,~~389~~492.1824 22,~~146~~127.8409 0.00 0.00 B4 2,405,000.00 6.~~09352~~09353% 2,~~398~~396,~~614~~471.4527 12,~~180~~169.0014 0.00 0.00 B5 1,968,000.00 6.~~09352~~09353% 1,~~962~~961,~~774~~020.7398 9,~~966~~957.8495 0.00 0.00 B6 2,187,338.00 6.~~09352~~09353% 2,~~181~~179,~~530~~581.3715 11,~~077~~067.6779 0.00 0.00 Totals 437,299,592.00 2,~~174~~029,~~734~~671.2060 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-A1 ~~639~~0.4700 0.00 ~~373~~355,~~973~~582.4111 0.00 6564,~~645~~125,~~927~~853.4879 A-R 0.00 0.00 0.00 0.00 0.00 2-A1 ~~760~~0.0100 0.00 ~~444~~438,~~467~~123.9308 0.00 6160,~~852~~856,~~670~~812.3646 2-A2 ~~670~~0.6000 0.00 ~~392~~386,~~177~~579.5919 0.00 ~~103~~101,~~087~~428,~~783~~020.9376 2-A3 ~~910~~0.7600 0.00 ~~532~~433,~~625~~281.8932 0.00 8668,~~656~~127,~~263~~294.9753 2-A4 0.00 0.00 0.00 0.00 0.00 2-A5 910.2400 0.00 53,~~358~~450.7600 0.00 10,690,000.00 2-PO 0.00 0.00 0.00 0.00 1,~~567~~494,~~218~~251.3016 A-X ~~375~~0.5900 0.00 ~~219~~207,~~653~~764.3454 0.00 4138,~~552~~594,~~907~~215.9109 B1 ~~113~~0.4200 0.00 66,~~327~~381.1228 0.00 13,~~072~~060,~~476~~794.7330 B2 560.7000 0.00 33,~~161~~188.0311 0.00 6,~~535~~529,~~740~~899.1437 B3 370.8100 0.00 22,~~109~~127.0409 0.00 4,~~357~~353,~~492~~598.2410 B4 200.7900 0.00 12,~~159~~169.2114 0.00 2,~~396~~394,~~471~~329.2762 B5 170.0100 0.00 9,~~949~~957.8395 0.00 1,~~961~~959,~~020~~268.9848 B6 180.9100 0.00 11,~~058~~067.7679 0.00 2,~~179~~177,~~581~~633.1534 Totals ~~3,712~~0.3100 0.00 2,~~171~~029,~~021~~671.9160 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankrupcy, 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-A1 76,038,000.00 6.50000% ~~909~~863.~~53602567~~33053842 4.~~92665352~~67637379 0.00000000 0.00000000 A-R 100.00 6.00000% 0.00000000 0.00000000 0.00000000 0.00000000 2-A1 65,908,125.00 8.50000% ~~953~~938.~~68681873~~46806232 6.~~75528169~~64748208 0.00000000 0.00000000 2-A2 109,846,875.00 4.50000% ~~953~~938.~~68681876~~46806229 3.~~57632559~~51925524 0.00000000 0.00000000 2-A3 135,290,000.00 6.00000% ~~788~~640.~~73034541~~52231481 3.~~94365171~~20261158 0.00000000 0.00000000 2-A4 7,105,000.00 6.00000% 0.00000000 0.00000000 0.00000000 0.00000000 2-A5 10,690,000.00 6.00000% 1000.00000000 5.00000000 0.00000000 0.00000000 2-PO 1,810,154.00 0.00000% ~~926~~865.~~36272936~~79279995 0.00000000 0.00000000 0.00000000 A-X 0.00 6.00000% ~~862~~814.~~96949669~~86766661 4.~~31484750~~07433834 0.00000000 0.00000000 B1 13,119,000.00 6.~~09352~~09353% ~~997~~996.~~34488528~~45374876 5.~~06445080~~05993445 0.00000000 0.00000000 B2 6,559,000.00 6.~~09352~~09353% ~~997~~996.~~34488489~~45374905 5.~~06445037~~05993444 0.00000000 0.00000000 B3 4,373,000.00 6.~~09352~~09353% ~~997~~996.~~34488452~~45374800 5.~~06445003~~05993368 0.00000000 0.00000000 B4 2,405,000.00 6.~~09352~~09353% ~~997~~996.~~34488565~~45375052 5.~~06444906~~05993347 0.00000000 0.00000000 B5 1,968,000.00 6.~~09352~~09353% ~~997~~996.~~34488313~~45375000 5.~~06445122~~05993394 0.00000000 0.00000000 B6 2,187,338.00 6.~~09352~~09353% ~~997~~996.~~34488680~~45374880 5.~~06445277~~05993587 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-A1 0.~~00840987~~00000000 0.00000000 4.~~91824364~~67637379 0.00000000 ~~863~~843.~~33053842~~33956430 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A1 0.~~01153136~~00000000 0.00000000 6.~~74375018~~64748208 0.00000000 ~~938~~923.~~46806232~~35827275 2-A2 0.~~00610486~~00000000 0.00000000 3.~~57022073~~51925524 0.00000000 ~~938~~923.~~46806229~~35827269 2-A3 0.~~00673191~~00000000 0.00000000 3.~~93691988~~20261158 0.00000000 ~~640~~503.~~52231481~~56489415 2-A4 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A5 0.~~00853508~~00000000 0.00000000 45.~~99146492~~00000000 0.00000000 1000.00000000 2-PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~865~~825.~~79279995~~48289262 A-X 0.~~00736546~~00000000 0.00000000 4.~~30748204~~07433834 0.00000000 ~~814~~756.~~86766661~~84662222 B1 0.~~00864548~~00000000 0.00000000 5.~~05580608~~05993445 0.00000000 ~~996~~995.~~45374876~~56325177 B2 0.~~00864461~~00000000 0.00000000 5.~~05580576~~05993444 0.00000000 ~~996~~995.~~45374905~~56325202 B3 0.~~00864624~~00000000 0.00000000 5.~~05580608~~05993368 0.00000000 ~~996~~995.~~45374800~~56325177 B4 0.~~00864449~~00000000 0.00000000 5.~~05580457~~05993347 0.00000000 ~~996~~995.~~45375052~~56325156 B5 0.~~00864329~~00000000 0.00000000 5.~~05580793~~05993394 0.00000000 ~~996~~995.~~45375000~~56325203 B6 0.~~00864521~~00000000 0.00000000 5.~~05580756~~05993587 0.00000000 ~~996~~995.~~45374880~~56325543 (6) Amount Does Not Include Excess Special Hazard, Bankrupcy,or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 2824,~~503~~787,~~278~~448.14 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) ~~154~~149,~~179~~197.9462 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 2824,~~657~~936,~~458~~645.0876 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee ~~110~~102,~~306~~083.5750 Payment of Interest and Principal 2824,~~547~~834,~~151~~562.5126 Total Withdrawals (Pool Distribution Amount) 2824,~~657~~936,~~458~~645.0876 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall ~~3,712~~0.3100 Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall ~~3,712~~0.3100

SERVICING FEES Gross Servicing Fee ~~110~~101,~~152~~929.0406 Master Servicing Fee 154.5344 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~110~~102,~~306~~083.5750

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 12 0 0 12 ~~605~~743,~~771~~098.7286 0.00 0.00 ~~605~~743,~~771~~098.7286 30 Days 4549 10 0 0 4649 14,~~299~~813,~~296~~128.3430 ~~137,890~~0.2900 0.00 0.00 14,~~437~~813,~~186~~128.6330 60 Days 1310 0 0 0 1310 53,~~104~~709,~~244~~931.3380 0.00 0.00 0.00 53,~~104~~709,~~244~~931.3380 90 Days 34 0 2 0 56 1,~~573~~522,~~086~~121.6062 0.00 ~~541~~1,~~255~~082,670.7904 0.00 2,~~114~~604,~~342~~791.3966 120 Days 10 0 12 0 2 ~~584,587~~0.1000 0.00 ~~336~~541,~~772~~255.4179 0.00 ~~921~~541,~~359~~255.5179 150 Days 0 0 1 0 1 0.00 0.00 ~~483~~336,~~850~~772.6041 0.00 ~~483~~336,~~850~~772.6041 180+ Days 0 0 01 0 01 0.00 0.00 0483,850.0060 0.00 0483,850.0060 Totals 6263 2 46 0 6871 2120,~~561~~045,~~214~~181.3772 743,~~662~~098.0186 12,~~361~~444,~~878~~548.8084 0.00 23,~~666~~232,~~755~~829.1842 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.~~087642~~184162% 0.000000% 0.000000% 0.~~087642~~184162% 0.~~168133~~220190% 0.000000% 0.000000% 0.~~168133~~220190% 30 Days 34.~~943909~~511971% 0.~~087642~~000000% 0.000000% 0.000000% 4.~~031551~~511971% 34.~~968787~~389319% 0.~~038272~~000000% 0.000000% 0.000000% 4.~~007059~~389319% 60 Days 10.~~139351~~920810% 0.000000% 0.000000% 0.000000% 10.~~139351~~920810% 1.~~416689~~099300% 0.000000% 0.000000% 0.000000% 1.~~416689~~099300% 90 Days 0.~~262927~~368324% 0.000000% 0.~~175285~~184162% 0.000000% 0.~~438212~~552486% 0.~~436612~~451024% 0.000000% 0.~~150226~~320809% 0.000000% 0.~~586838~~771833% 120 Days 0.~~087642~~000000% 0.000000% 0.~~087642~~184162% 0.000000% 0.~~175285~~184162% 0.~~162253~~000000% 0.000000% 0.~~093472~~160381% 0.000000% 0.~~255724~~160381% 150 Days 0.000000% 0.000000% 0.~~087642~~092081% 0.000000% 0.~~087642~~092081% 0.000000% 0.000000% 0.~~134293~~099790% 0.000000% 0.~~134293~~099790% 180+ Days 0.000000% 0.000000% 0.~~000000~~092081% 0.000000% 0.~~000000~~092081% 0.000000% 0.000000% 0.~~000000~~143371% 0.000000% 0.~~000000~~143371% Totals 5.~~433830~~801105% 0.~~175285~~184162% 0.~~350570~~552486% 0.000000% 56.~~959684~~537753% 5.~~984342~~939643% 0.~~206404~~220190% 0.~~377991~~724351% 0.000000% 6.~~568737~~884184%

Delinquency Status By Groups

DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 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 01 0 0 01 0137,680.0050 0.00 0.00 0137,680.0050 30 Days 2119 10 0 0 2219 53,~~237~~668,~~330~~292.9920 ~~137,890~~0.2900 0.00 0.00 53,~~375~~668,~~221~~292.2820 60 Days 3 0 0 0 3 ~~407~~757,~~813~~343.8391 0.00 0.00 0.00 ~~407~~757,~~813~~343.8391 90 Days 01 0 01 0 02 0103,524.0073 0.00 0169,328.0086 0.00 0272,853.0059 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 2423 1 01 0 25 54,~~645~~529,~~144~~160.8284 137,~~890~~680.2950 0169,328.0086 0.00 54,~~783~~836,~~035~~170.1120 0-29 Days 0.~~000000~~324675% 0.000000% 0.000000% 0.~~000000~~324675% 0.~~000000~~197030% 0.000000% 0.000000% 0.~~000000~~197030% 30 Days 6.~~666667~~168831% 0.~~317460~~000000% 0.000000% 0.000000% 6.~~984127~~168831% 75.~~335033~~249582% 0.~~193119~~000000% 0.000000% 0.000000% 75.~~528152~~249582% 60 Days 0.~~952381~~974026% 0.000000% 0.000000% 0.000000% 0.~~952381~~974026% 01.~~571155~~083812% 0.000000% 0.000000% 0.000000% 01.~~571155~~083812% 90 Days 0.~~000000~~324675% 0.000000% 0.~~000000~~324675% 0.000000% 0.~~000000~~649351% 0.~~000000~~148151% 0.000000% 0.~~000000~~242321% 0.000000% 0.~~000000~~390472% 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 7.~~619048~~467532% 0.~~317460~~324675% 0.~~000000~~324675% 0.000000% 78.~~936508~~116883% 76.~~906188~~481545% 0.~~193119~~197030% 0.~~000000~~242321% 0.000000% 86.~~099307~~920897% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 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 1 0 0 1 605,~~771~~418.7236 0.00 0.00 605,~~771~~418.7236 30 Days 2430 0 0 0 2430 911,~~061~~144,~~965~~836.3510 0.00 0.00 0.00 911,~~061~~144,~~965~~836.3510 60 Days 107 0 0 0 107 42,~~696~~952,~~430~~587.5089 0.00 0.00 0.00 42,~~696~~952,~~430~~587.5089 90 Days 3 0 21 0 54 1,~~573~~418,~~086~~596.6089 0.00 ~~541~~913,~~255~~341.7918 0.00 2,~~114~~331,~~342~~938.3907 120 Days 10 0 12 0 2 ~~584,587~~0.1000 0.00 ~~336~~541,~~772~~255.4179 0.00 ~~921~~541,~~359~~255.5179 150 Days 0 0 1 0 1 0.00 0.00 ~~483~~336,~~850~~772.6041 0.00 ~~483~~336,~~850~~772.6041 180 Days 0 0 01 0 01 0.00 0.00 0483,850.0060 0.00 0483,850.0060 Totals 3840 1 45 0 4346 15,~~916~~516,~~069~~020.5588 605,~~771~~418.7236 12,~~361~~275,~~878~~219.8098 0.00 1718,~~883~~396,~~720~~659.0722 0-29 Days 0.~~121065~~128535% 0.000000% 0.000000% 0.~~121065~~128535% 0.~~209688~~226237% 0.000000% 0.000000% 0.~~209688~~226237% 30 Days 23.~~905569~~856041% 0.000000% 0.000000% 0.000000% 23.~~905569~~856041% 34.~~136798~~164683% 0.000000% 0.000000% 0.000000% 34.~~136798~~164683% 60 Days 10.~~210654~~899743% 0.000000% 0.000000% 0.000000% 10.~~210654~~899743% 1.~~625669~~103344% 0.000000% 0.000000% 0.000000% 1.~~625669~~103344% 90 Days 0.~~363196~~385604% 0.000000% 0.~~242131~~128535% 0.000000% 0.~~605327~~514139% 0.~~544524~~530112% 0.000000% 0.~~187356~~341304% 0.000000% 0.~~731879~~871416% 120 Days 0.~~121065~~000000% 0.000000% 0.~~121065~~257069% 0.000000% 0.~~242131~~257069% 0.~~202355~~000000% 0.000000% 0.~~116574~~202260% 0.000000% 0.~~318928~~202260% 150 Days 0.000000% 0.000000% 0.~~121065~~128535% 0.000000% 0.~~121065~~128535% 0.000000% 0.000000% 0.~~167485~~125848% 0.000000% 0.~~167485~~125848% 180 Days 0.000000% 0.000000% 0.~~000000~~128535% 0.000000% 0.~~000000~~128535% 0.000000% 0.000000% 0.~~000000~~180809% 0.000000% 0.~~000000~~180809% Totals 45.~~600484~~141388% 0.~~121065~~128535% 0.~~484262~~642674% 0.000000% 5.~~205811~~912596% 5.~~509345~~798139% 0.~~209688~~226237% 0.~~471414~~850221% 0.000000% 6.~~190447~~874597%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance ~~154~~149,~~179~~197.9462

CREDIT ENHANCEMENT Original $ Original % Current $ Current % Bankruptcy 167,793.00 0.03837026% 167,793.00 0.~~04660882~~04976101% Fraud 13,118,988.00 3.00000005% 13,118,988.00 3.~~64413654~~89059172% Special Hazard 4,372,996.00 1.00000002% 4,372,996.00 1.~~21471218~~29686391% Limit of Subordinate's Exposure to Certain Types of Losses

COLLATERAL STATEMENT Collateral Description Fixed 15 & 30 Year Weighted Average Gross Coupon 7.~~096790~~105799% Weighted Average Pass-Through Rate 6.~~754204~~765523% Weighted Average Maturity(Stepdown Calculation ) ~~348~~347 Beginning Scheduled Collateral Loan Count 1,~~207~~141 Number Of Loans Paid In Full 6655 Ending Scheduled Collateral Loan Count 1,~~141~~086 Beginning Scheduled Collateral Balance ~~386~~360,~~378~~002,~~776~~646.5695 Ending Scheduled Collateral Balance ~~360~~337,~~002~~197,~~646~~756.9529 Ending Actual Collateral Balance at 31-~~Jul~~Aug-2003 ~~360~~337,~~293~~481,~~840~~258.1356 Monthly P &I Constant 2,~~631~~453,~~058~~912.2301 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 2824,~~258~~579,~~914~~444.4245 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~360~~337,~~002~~197,~~646~~756.9529 Scheduled Principal ~~346~~322,~~017~~156.3170 Unscheduled Principal 2622,~~030~~482,~~112~~733.3096

Miscellaneous Reporting Group 1 Senior % 92.~~372953~~003168% Group 1 Junior % 7.~~627047~~996832% Group 1 Senior Prepayment % 100.000000% Group 2 Senior % 91.~~989305~~362482% Group 2 Junior % 8.~~010695~~637518% Group 2 Senior Prepayment % 100.000000%

Group Level Collateral Statement Group Group 1 Group 2 Total Collateral Description Fixed 15 & 30 Year Fixed 15 & 30 Year Fixed 15 & 30 Year Weighted Average Coupon Rate 7.~~534115~~532000 67.~~991681~~000446 7.~~096790~~105799 Weighted Average Net Rate 7.~~269543~~267400 6.~~729722~~739010 6.~~834324~~843736 Weighted Average Maturity ~~352~~351 346 347 ~~348~~ Beginning Loan Count ~~331~~315 ~~876~~826 1,~~207~~141 Loans Paid In Full 167 5048 6655 Ending Loan Count ~~315~~308 ~~826~~778 1,~~141~~086 Beginning Scheduled Balance 7471,~~869~~351,~~642~~811.8677 ~~311~~288,~~509~~650,~~133~~835.7018 ~~386~~360,~~378~~002,~~776~~646.5695 Ending scheduled Balance 7169,~~351~~827,~~811~~248.7716 ~~288~~267,~~650~~370,~~835~~508.1813 ~~360~~337,~~002~~197,~~646~~756.9529 Record Date 0708/31/2003 0708/31/2003 0708/31/2003 Principal And Interest Constant ~~528~~503,~~516~~997.8979 21,~~102~~949,~~541~~914.3422 2,~~631~~453,~~058~~912.2301 Scheduled Principal 5856,~~453~~146.1628 ~~287~~266,~~564~~010.1542 ~~346~~322,~~017~~156.3170 Unscheduled Principal 31,~~459~~468,~~377~~417.9333 2221,~~570~~014,~~734~~316.3763 2622,~~030~~482,~~112~~733.3096 Scheduled Interest ~~470~~447,~~063~~851.7351 1,~~814~~683,~~977~~903.1980 2,~~285~~131,~~040~~755.9231 Servicing Fees 1615,~~506~~733.9803 6862,~~002~~886.4032 8478,~~509~~619.3835 Master Servicing Fees 2.14 152.3930 154.5344 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 ~~965~~699.4254 2422,~~677~~610.1734 2523,~~642~~309.5988 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 ~~452~~431,~~589~~416.1980 1,~~722~~598,~~145~~254.2384 2,~~174~~029,~~734~~671.4264 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.00 0.00 0.00 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 7.~~254036~~255600 6.~~634072~~644380 6.~~754204~~765523

Filing Compare · MORTGAGE ASSET SEC TR MSTR ALT LN TR MT PS THR CT SR 2003-3