8-K 1 prm03001.txt OCTOBER 8-K 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): October 27, 2003 PRIME MORTGAGE TRUST Mortgage Pass-Through Certificates, Series 2003-1 Trust (Exact name of registrant as specified in its charter) New York (governing law of 033-44658-31 54-2116958 Pooling and Servicing Agreement) (Commission 54-2126959 (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 October 27, 2003 a distribution was made to holders of PRIME MORTGAGE TRUST, Mortgage Pass-Through Certificates, Series 2003-1 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 2003-1 Trust, relating to the October 27, 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. PRIME MORTGAGE TRUST Mortgage Pass-Through Certificates, Series 2003-1 Trust By: Wells Fargo Bank Minnesota, N.A., as Securities Administrator By: /s/ Beth Belfield, Assistant Vice President By: Beth Belfield, Assistant Vice President Date: 10/29/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-1 Trust, relating to the October 27, 2003 distribution. EX-99.1

Prime Mortgage Pass Through Certificates Mortgage Pass-Through Certificates Record Date: 89/3130/03 Distribution Date: 910/2527/03 PRM Series: 2003-1 Contact: CTSLink Customer Service Wells Fargo Bank Minnesota, N.A. Corporate Trust Services 9062 Old Annapolis Road Columbia, MD 21045-1951 Telephone: (301) 815-6600 Fax: (301) 815-6600 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution A-1 74160MAA0 SEN 4.75000% 0.00 0.00 0.00 A-2 74160MAB8 SEN 1.~~61000~~62000% 119,~~384~~938,~~026~~656.89 15 13,~~193~~417.5719 1244,~~445,370~~235.7524 A-3 74160MAC6 SEN 0.75000% 0.00 3733,~~897~~260.9343 0.00 A-4 74160MAD4 SEN 6.~~39000~~38000% 0.00 6052,~~302~~840.4452 0.00 A-5 74160MAE2 SEN 4.75000% 9886,~~902~~345,~~707~~544.3144 ~~389~~341,~~439~~784.4345 122,~~557~~121,~~162~~878.8788 A-6 74160MAF9 SEN 5.50000% 2221,~~353~~933,~~745~~434.7873 ~~101~~100,~~918~~528.0624 ~~420~~460,~~311~~325.0552 A-7 74160MAG7 SEN 5.00000% 70,775,143.00 ~~293~~294,~~351~~896.8943 0.00 A-8 74160MAH5 SEN 1.~~68000~~69000% 11,795,857.00 16,~~427~~612.7150 0.00 A-9 74160MAJ1 SEN 6.~~82000~~81000% 0.00 66,~~688~~941.6649 0.00 A-10 74160MAK8 SEN 5.50000% 4935,~~361~~316,~~551~~927.3477 ~~225~~161,~~055~~869.5025 142,~~044~~408,~~623~~431.5754 A-11 74160MAL6 SEN 5.45000% 13,375,000.00 60,744.79 0.00 A-12 74160MAM4 SEN 2.~~30063~~31500% ~~1,727,145~~0.9800 ~~3,293~~0.9300 ~~1,727,145~~0.9800 A-13 74160MAN2 SEN 12.~~53861~~50700% ~~785,066~~0.3600 ~~8,160~~0.0700 ~~785,066~~0.3600 A-14 74160MAW2 SEN 0.25000% 0.00 3,~~253~~270.7083 0.00 A-15 74160MAX0 SEN 5.25000% 15,700,000.00 68,~~327~~687.7550 0.00 PO 74160MAP7 PO 0.00000% ~~654~~651,~~889~~629.8237 0.00 31,~~260~~204.4492 X 74160MAQ5 SEN 0.~~26239~~25246% 0.00 6658,~~859~~145.0672 0.00 R-I PRM0301R1 SEN 5.50000% 0.00 0.00 0.00 R-II PRM0301R2 SEN 5.50000% 0.00 0.00 0.00 B-1 74160MAT9 SUB 5.50000% 5,~~367~~362,~~994~~216.9895 24,~~474~~576.4583 5,~~778~~844.0357 B-2 74160MAU6 SUB 5.50000% 1,~~904~~902,~~965~~914.3587 8,~~685~~721.3669 2,~~050~~074.4809 B-3 74160MAV4 SUB 5.50000% 1,~~385~~384,~~610~~119.5914 6,~~317~~343.4588 1,~~491~~508.4563 B-4 74160MAY8 SUB 5.50000% 692,~~805~~059.2957 3,~~158~~171.7394 ~~745~~754.7331 B-5 74160MAZ5 SUB 5.50000% ~~519~~518,~~354~~795.7673 2,~~367~~377.9181 ~~559~~565.0346 B-6 74160MBA9 SUB 5.50000% ~~693~~692,~~563~~817.8935 3,~~162~~175.1941 ~~746~~755.5414 Totals ~~307~~276,~~379~~385,~~428~~116.3407 1,~~465~~321,~~080~~366.5890 305,~~994~~247,~~312~~578.2830

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 0.00 0.00 0.00 A-2 0.00 9,~~938~~694,~~656~~420.1591 1257,~~460,564~~652.3243 0.00 A-3 0.00 0.00 3733,~~897~~260.9343 0.00 A-4 0.00 0.00 6052,~~302~~840.4452 0.00 A-5 0.00 8684,~~345~~223,~~544~~665.4456 122,~~946~~463,~~602~~663.3033 0.00 A-6 0.00 21,~~933~~473,~~434~~109.7321 ~~522~~560,~~229~~853.1176 0.00 A-7 0.00 70,775,143.00 ~~293~~294,~~351~~896.8943 0.00 A-8 0.00 11,795,857.00 16,~~427~~612.7150 0.00 A-9 0.00 0.00 66,~~688~~941.6649 0.00 A-10 0.00 3532,~~316~~908,~~927~~496.7723 142,~~269~~570,~~679~~300.0779 0.00 A-11 0.00 13,375,000.00 60,744.79 0.00 A-12 0.00 0.00 ~~1,730,439~~0.9100 0.00 A-13 0.00 0.00 ~~793,226~~0.4300 0.00 A-14 0.00 0.00 3,~~253~~270.7083 0.00 A-15 0.00 15,700,000.00 68,~~327~~687.7550 0.00 PO 0.00 ~~651~~650,~~629~~424.3745 31,~~260~~204.4492 0.00 X 0.00 0.00 6658,~~859~~145.0672 0.00 R-I 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 B-1 0.00 5,~~362~~356,~~216~~372.9539 30,~~252~~421.4840 0.00 B-2 0.00 1,~~902~~900,~~914~~840.8779 10,~~735~~795.8478 0.00 B-3 0.00 1,~~384~~382,~~119~~610.1451 7,~~808~~852.9051 0.00 B-4 0.00 ~~692~~691,~~059~~305.5726 3,~~904~~926.4625 0.00 B-5 0.00 518,~~795~~230.7327 2,~~926~~943.9427 0.00 B-6 0.00 692,~~817~~062.3521 3,~~908~~930.7355 0.00 Totals 0.00 ~~276~~271,~~385~~137,~~116~~537.0779 326,~~459~~568,~~392~~945.8620 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) A-1 4,750,000.00 0.00 0.00 0.00 0.00 0.00 A-2 13,250,000.00 119,~~384~~938,~~026~~656.8915 1413,~~872~~485.9403 1230,~~430,497~~750.8121 0.00 0.00 A-3 0.00 0.00 0.00 0.00 0.00 0.00 A-4 0.00 0.00 0.00 0.00 0.00 0.00 A-5 110,364,000.00 9886,~~902~~345,~~707~~544.3144 ~~129~~117,~~213~~155.8492 122,~~427~~004,~~949~~722.0396 0.00 0.00 A-6 23,373,000.00 2221,~~353~~933,~~745~~434.7873 425,~~325~~416.0209 ~~415~~434,~~986~~909.0343 0.00 0.00 A-7 70,775,143.00 70,775,143.00 0.00 0.00 0.00 0.00 A-8 11,795,857.00 11,795,857.00 0.00 0.00 0.00 0.00 A-9 0.00 0.00 0.00 0.00 0.00 0.00 A-10 50,000,000.00 4935,~~361~~316,~~551~~927.3477 ~~144~~132,~~519~~977.8844 132,~~900~~275,~~103~~454.6910 0.00 0.00 A-11 13,375,000.00 13,375,000.00 0.00 0.00 0.00 0.00 A-12 15,655,750.00 ~~1,727,145~~0.9800 ~~17,772~~0.4200 ~~1,709,373~~0.5600 0.00 0.00 A-13 7,116,250.00 ~~785,066~~0.3600 ~~8,078~~0.3700 ~~776,987~~0.9800 0.00 0.00 A-14 0.00 0.00 0.00 0.00 0.00 0.00 A-15 15,700,000.00 15,700,000.00 0.00 0.00 0.00 0.00 PO 699,845.00 ~~654~~651,~~889~~629.8237 1,~~162~~165.3762 ~~2,098~~39.0731 0.00 0.00 X 0.00 0.00 0.00 0.00 0.00 0.00 R-I 50.00 0.00 0.00 0.00 0.00 0.00 R-II 50.00 0.00 0.00 0.00 0.00 0.00 B-1 5,385,000.00 5,~~367~~362,~~994~~216.9895 5,~~778~~844.0357 0.00 0.00 0.00 B-2 1,911,000.00 1,~~904~~902,~~965~~914.3587 2,~~050~~074.4809 0.00 0.00 0.00 B-3 1,390,000.00 1,~~385~~384,~~610~~119.5914 1,~~491~~508.4563 0.00 0.00 0.00 B-4 695,000.00 692,~~805~~059.2957 ~~745~~754.7331 0.00 0.00 0.00 B-5 521,000.00 ~~519~~518,~~354~~795.7673 ~~559~~565.0346 0.00 0.00 0.00 B-6 695,761.00 ~~693~~692,~~563~~817.8935 ~~746~~755.5414 0.00 0.00 0.00 Totals 347,452,706.00 ~~307~~276,~~379~~385,~~428~~116.3407 ~~331~~301,~~316~~702.10 30 4,~~662~~945,~~996~~876.1701 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 A-1 0.00 0.00 0.00000000 0.00 A-2 1244,~~445,370~~235.7524 9,~~938~~694,~~656~~420.1591 0.~~75008726~~73165441 1244,~~445,370~~235.7524 A-3 0.00 0.00 0.00000000 0.00 A-4 0.00 0.00 0.00000000 0.00 A-5 122,~~557~~121,~~162~~878.8788 8684,~~345~~223,~~544~~665.4456 0.~~78237056~~76314437 122,~~557~~121,~~162~~878.8788 A-6 ~~420~~460,~~311~~325.0552 21,~~933~~473,~~434~~109.7321 0.~~93840905~~91871429 ~~420~~460,~~311~~325.0552 A-7 0.00 70,775,143.00 1.00000000 0.00 A-8 0.00 11,795,857.00 1.00000000 0.00 A-9 0.00 0.00 0.00000000 0.00 A-10 142,~~044~~408,~~623~~431.5754 3532,~~316~~908,~~927~~496.7723 0.~~70633856~~65816992 142,~~044~~408,~~623~~431.5754 A-11 0.00 13,375,000.00 1.00000000 0.00 A-12 ~~1,727,145~~0.9800 0.00 0.00000000 ~~1,727,145~~0.9800 A-13 ~~785,066~~0.3600 0.00 0.00000000 ~~785,066~~0.3600 A-14 0.00 0.00 0.00000000 0.00 A-15 0.00 15,700,000.00 1.00000000 0.00 PO 31,~~260~~204.4492 ~~651~~650,~~629~~424.3745 0.~~93110527~~92938358 31,~~260~~204.4492 X 0.00 0.00 0.00000000 0.00 R-I 0.00 0.00 0.00000000 0.00 R-II 0.00 0.00 0.00000000 0.00 B-1 5,~~778~~844.0357 5,~~362~~356,~~216~~372.9539 0.~~99576916~~99468382 5,~~778~~844.0357 B-2 2,~~050~~074.4809 1,~~902~~900,~~914~~840.8779 0.~~99576916~~99468383 2,~~050~~074.4809 B-3 1,~~491~~508.4563 1,~~384~~382,~~119~~610.1451 0.~~99576917~~99468382 1,~~491~~508.4563 B-4 ~~745~~754.7331 ~~692~~691,~~059~~305.5726 0.~~99576917~~99468383 ~~745~~754.7331 B-5 ~~559~~565.0346 518,~~795~~230.7327 0.~~99576916~~99468382 ~~559~~565.0346 B-6 ~~746~~755.5414 692,~~817~~062.3521 0.~~99576916~~99468382 ~~746~~755.5414 Totals 305,~~994~~247,~~312~~578.2830 ~~276~~271,~~385~~137,~~116~~537.0779 0.~~79546111~~78035811 305,~~994~~247,~~312~~578.2830

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 4,750,000.00 0.00000000 0.00000000 0.00000000 0.00000000 A-2 13,250,000.00 ~~859~~750.~~17184075~~08725660 1.~~12248604~~01773811 ~~107~~17.~~96209887~~41511019 0.00000000 A-3 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-4 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-5 110,364,000.00 ~~896~~782.~~15007892~~37055960 1.~~17079700~~06154108 ~~112~~18.~~60872232~~16464572 0.00000000 A-6 23,373,000.00 ~~956~~938.~~39181021~~40905019 01.~~18504343~~08741240 1718.~~79771660~~60734309 0.00000000 A-7 70,775,143.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-8 11,795,857.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-9 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-10 50,000,000.00 ~~987~~706.~~23102680~~33855540 2.~~89039760~~65954880 ~~278~~45.~~00207380~~50908200 0.00000000 A-11 13,375,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-12 15,655,750.00 ~~110~~0.~~32023250~~00000000 10.~~13520080~~00000000 ~~109~~0.~~18503170~~00000000 0.00000000 A-13 7,116,250.00 ~~110~~0.~~32023327~~00000000 10.~~13520042~~00000000 ~~109~~0.~~18503144~~00000000 0.00000000 A-14 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-15 15,700,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 PO 699,845.00 ~~935~~931.~~76409062~~10527331 1.~~66089634~~66554023 20.~~99790668~~05616958 0.00000000 X 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-I 50.00 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 5,385,000.00 ~~996~~995.~~84215042~~76916435 1.~~07298607~~08534262 0.00000000 0.00000000 B-2 1,911,000.00 ~~996~~995.~~84215071~~76916274 1.~~07298796~~08534275 0.00000000 0.00000000 B-3 1,390,000.00 ~~996~~995.~~84215108~~76916547 1.~~07298561~~08534532 0.00000000 0.00000000 B-4 695,000.00 ~~996~~995.~~84214388~~76916547 1.~~07299281~~08533813 0.00000000 0.00000000 B-5 521,000.00 ~~996~~995.~~84214971~~76915547 1.~~07299424~~08533589 0.00000000 0.00000000 B-6 695,761.00 ~~996~~995.~~84214838~~76916499 1.~~07298340~~08534396 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 A-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-2 0.00000000 ~~109~~18.~~08458491~~43284830 ~~750~~731.~~08725660~~65440830 0.~~75008726~~73165441 ~~109~~18.~~08458491~~43284830 A-3 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-4 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-5 0.00000000 ~~113~~19.~~77951932~~22618680 ~~782~~763.~~37055960~~14437280 0.~~78237056~~76314437 ~~113~~19.~~77951932~~22618680 A-6 0.00000000 1719.~~98276002~~69475549 ~~938~~918.~~40905019~~71429470 0.~~93840905~~91871429 1719.~~98276002~~69475549 A-7 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-8 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-9 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-10 0.00000000 ~~280~~48.~~89247140~~16863080 ~~706~~658.~~33855540~~16992460 0.~~70633856~~65816992 ~~280~~48.~~89247140~~16863080 A-11 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-12 0.00000000 ~~110~~0.~~32023250~~00000000 0.00000000 0.00000000 ~~110~~0.~~32023250~~00000000 A-13 0.00000000 ~~110~~0.~~32023327~~00000000 0.00000000 0.00000000 ~~110~~0.~~32023327~~00000000 A-14 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-15 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 PO 0.00000000 41.~~65880302~~72169552 ~~931~~929.~~10527331~~38357779 0.~~93110527~~92938358 41.~~65880302~~72169552 X 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 1.~~07298607~~08534262 ~~995~~994.~~76916435~~68382358 0.~~99576916~~99468382 1.~~07298607~~08534262 B-2 0.00000000 1.~~07298796~~08534275 ~~995~~994.~~76916274~~68382522 0.~~99576916~~99468383 1.~~07298796~~08534275 B-3 0.00000000 1.~~07298561~~08534532 ~~995~~994.~~76916547~~68382014 0.~~99576917~~99468382 1.~~07298561~~08534532 B-4 0.00000000 1.~~07299281~~08533813 ~~995~~994.~~76916547~~68382734 0.~~99576917~~99468383 1.~~07299281~~08533813 B-5 0.00000000 1.~~07299424~~08533589 ~~995~~994.~~76915547~~68381958 0.~~99576916~~99468382 1.~~07299424~~08533589 B-6 0.00000000 1.~~07298340~~08534396 ~~995~~994.~~76916499~~68382102 0.~~99576916~~99468382 1.~~07298340~~08534396 (3) Amount Does Not Include Excess Special Hazard, ~~Bankrupcy~~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 A-1 4,750,000.00 4.75000% 0.00 0.00 0.00 0.00 A-2 13,250,000.00 1.~~61000~~62000% 119,~~384~~938,~~026~~656.89 15 13,~~273~~417.5719 0.00 0.00 A-3 0.00 0.75000% 6053,~~955~~216,~~950~~690.7137 3833,~~097~~260.4743 0.00 0.00 A-4 0.00 6.~~39000~~38000% 119,~~384~~938,~~026~~656.8915 6052,~~619~~840.9452 0.00 0.00 A-5 110,364,000.00 4.75000% 9886,~~902~~345,~~707~~544.3144 ~~391~~341,~~489~~784.8845 0.00 0.00 A-6 23,373,000.00 5.50000% 2221,~~353~~933,~~745~~434.7873 ~~102~~100,~~454~~528.6724 0.00 0.00 A-7 70,775,143.00 5.00000% 70,775,143.00 294,896.43 0.00 0.00 A-8 11,795,857.00 1.~~68000~~69000% 11,795,857.00 16,~~514~~612.2050 0.00 0.00 A-9 0.00 6.~~82000~~81000% 11,795,857.00 6766,~~039~~941.7949 0.00 0.00 A-10 50,000,000.00 5.50000% 4935,~~361~~316,~~551~~927.3477 ~~226~~161,~~240~~869.4425 0.00 0.00 A-11 13,375,000.00 5.45000% 13,375,000.00 60,744.79 0.00 0.00 A-12 15,655,750.00 2.~~30063~~31500% ~~1,727,145~~0.9800 ~~3,311~~0.2700 0.00 0.00 A-13 7,116,250.00 12.~~53861~~50700% ~~785,066~~0.3600 ~~8,203~~0.0400 0.00 0.00 A-14 0.00 0.25000% 15,700,000.00 3,270.83 0.00 0.00 A-15 15,700,000.00 5.25000% 15,700,000.00 68,687.50 0.00 0.00 PO 699,845.00 0.00000% ~~654~~651,~~889~~629.8237 0.00 0.00 0.00 X 0.00 0.~~26239~~25246% ~~307~~276,~~379~~385,~~428~~116.3508 6758,~~211~~145.0872 0.00 0.00 R-I 50.00 5.50000% 0.00 0.00 0.00 0.00 R-II 50.00 5.50000% 0.00 0.00 0.00 0.00 B-1 5,385,000.00 5.50000% 5,~~367~~362,~~994~~216.9895 24,~~603~~576.3183 0.00 0.00 B-2 1,911,000.00 5.50000% 1,~~904~~902,~~965~~914.3587 8,~~731~~721.0969 0.00 0.00 B-3 1,390,000.00 5.50000% 1,~~385~~384,~~610~~119.5914 6,~~350~~343.7288 0.00 0.00 B-4 695,000.00 5.50000% 692,~~805~~059.2957 3,~~175~~171.3694 0.00 0.00 B-5 521,000.00 5.50000% ~~519~~518,~~354~~795.7673 2,~~380~~377.3881 0.00 0.00 B-6 695,761.00 5.50000% ~~693~~692,~~563~~817.8935 3,~~178~~175.8341 0.00 0.00 Totals 347,452,706.00 1,~~472~~321,~~474~~366.5990 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 A-1 0.00 0.00 0.00 0.00 0.00 A-2 800.00 0.00 1513,~~193~~417.5719 0.00 9,~~938~~694,~~656~~420.1591 A-3 ~~199~~0.5400 0.00 3733,~~897~~260.9343 0.00 5351,~~216~~908,~~690~~928.3795 A-4 ~~317~~0.5000 0.00 6052,~~302~~840.4452 0.00 9,~~938~~694,~~656~~420.1591 A-5 ~~2,050~~0.4500 0.00 ~~389~~341,~~439~~784.4345 0.00 8684,~~345~~223,~~544~~665.4456 A-6 ~~536~~0.6100 0.00 ~~101~~100,~~918~~528.0624 0.00 21,~~933~~473,~~434~~109.7321 A-7 ~~1,544~~0.5400 0.00 ~~293~~294,~~351~~896.8943 0.00 70,775,143.00 A-8 860.4900 0.00 16,~~427~~612.7150 0.00 11,795,857.00 A-9 ~~351~~0.1200 0.00 66,~~688~~941.6649 0.00 11,795,857.00 A-10 ~~1,184~~0.9500 0.00 ~~225~~161,~~055~~869.5025 0.00 3532,~~316~~908,~~927~~496.7723 A-11 0.00 0.00 60,744.79 0.00 13,375,000.00 A-12 170.3400 0.00 ~~3,293~~0.9300 0.00 0.00 A-13 420.9600 0.00 ~~8,160~~0.0700 0.00 0.00 A-14 170.1300 0.00 3,~~253~~270.7083 0.00 15,700,000.00 A-15 ~~359~~0.7500 0.00 68,~~327~~687.7550 0.00 15,700,000.00 PO 0.00 0.00 0.00 0.00 ~~651~~650,~~629~~424.3745 X ~~352~~0.0200 0.00 6658,~~859~~145.0672 0.00 ~~276~~271,~~385~~137,~~116~~537.0878 R-I 0.00 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 0.00 B-1 ~~128~~0.8600 0.00 24,~~474~~576.4583 0.00 5,~~362~~356,~~216~~372.9539 B-2 450.7300 0.00 8,~~685~~721.3669 0.00 1,~~902~~900,~~914~~840.8779 B-3 330.2600 0.00 6,~~317~~343.4588 0.00 1,~~384~~382,~~119~~610.1451 B-4 160.6300 0.00 3,~~158~~171.7394 0.00 ~~692~~691,~~059~~305.5726 B-5 120.4700 0.00 2,~~367~~377.9181 0.00 518,~~795~~230.7327 B-6 160.6500 0.00 3,~~162~~175.1941 0.00 692,~~817~~062.3521 Totals ~~7,394~~0.00 0.00 1,~~465~~321,~~080~~366.5890 0.00 (4) Amount Does Not Include Excess Special Hazard, ~~Bankrupcy~~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 A-1 4,750,000.00 4.75000% 0.00000000 0.00000000 0.00000000 0.00000000 A-2 13,250,000.00 1.~~61000~~62000% ~~859~~750.~~17184075~~08725660 1.~~15272226~~01261811 0.00000000 0.00000000 A-3 0.00 0.75000% ~~859~~750.~~17184103~~08725656 0.~~53698241~~46880451 0.00000000 0.00000000 A-4 0.00 6.~~39000~~38000% ~~859~~750.~~17184075~~08725660 43.~~57508981~~98796377 0.00000000 0.00000000 A-5 110,364,000.00 4.75000% ~~896~~782.~~15007892~~37055960 3.~~54726070~~09688349 0.00000000 0.00000000 A-6 23,373,000.00 5.50000% ~~956~~938.~~39181021~~40905019 4.~~38346254~~30104137 0.00000000 0.00000000 A-7 70,775,143.00 5.00000% 1000.00000000 4.16666668 0.00000000 0.00000000 A-8 11,795,857.00 1.~~68000~~69000% 1000.00000000 1.~~40000002~~40833345 0.00000000 0.00000000 A-9 0.00 6.~~82000~~81000% 1000.00000000 5.~~68333356~~67500013 0.00000000 0.00000000 A-10 50,000,000.00 5.50000% ~~987~~706.~~23102680~~33855540 43.~~52480880~~23738500 0.00000000 0.00000000 A-11 13,375,000.00 5.45000% 1000.00000000 4.54166654 0.00000000 0.00000000 A-12 15,655,750.00 2.~~30063~~31500% ~~110~~0.~~32023250~~00000000 0.~~21150504~~00000000 0.00000000 0.00000000 A-13 7,116,250.00 12.~~53861~~50700% ~~110~~0.~~32023327~~00000000 10.~~15271948~~00000000 0.00000000 0.00000000 A-14 0.00 0.25000% 1000.00000000 0.20833312 0.00000000 0.00000000 A-15 15,700,000.00 5.25000% 1000.00000000 4.37500000 0.00000000 0.00000000 PO 699,845.00 0.00000% ~~935~~931.~~76409062~~10527331 0.00000000 0.00000000 0.00000000 X 0.00 0.~~26239~~25246% ~~884~~795.~~66551862~~46111257 0.~~19343951~~16734859 0.00000000 0.00000000 R-I 50.00 5.50000% 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 5.50000% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 5,385,000.00 5.50000% ~~996~~995.~~84215042~~76916435 4.~~56885980~~56394243 0.00000000 0.00000000 B-2 1,911,000.00 5.50000% ~~996~~995.~~84215071~~76916274 4.~~56885924~~56394035 0.00000000 0.00000000 B-3 1,390,000.00 5.50000% ~~996~~995.~~84215108~~76916547 4.~~56886331~~56394245 0.00000000 0.00000000 B-4 695,000.00 5.50000% ~~996~~995.~~84214388~~76916547 4.~~56886331~~56394245 0.00000000 0.00000000 B-5 521,000.00 5.50000% ~~996~~995.~~84214971~~76915547 4.~~56886756~~56393474 0.00000000 0.00000000 B-6 695,761.00 5.50000% ~~996~~995.~~84214838~~76916499 4.~~56885338~~56393790 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 A-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-2 0.~~00603774~~00000000 0.00000000 1.~~14668453~~01261811 0.00000000 ~~750~~731.~~08725660~~65440830 A-3 0.~~00281251~~00000000 0.00000000 0.~~53416990~~46880451 0.00000000 ~~750~~731.~~08725656~~65440835 A-4 0.~~02396226~~00000000 0.00000000 43.~~55112755~~98796377 0.00000000 ~~750~~731.~~08725660~~65440830 A-5 0.~~01857898~~00000000 0.00000000 3.~~52868173~~09688349 0.00000000 ~~782~~763.~~37055960~~14437280 A-6 0.~~02295854~~00000000 0.00000000 4.~~36050400~~30104137 0.00000000 ~~938~~918.~~40905019~~71429470 A-7 0.~~02182320~~00000000 0.00000000 4.~~14484348~~16666668 0.00000000 1000.00000000 A-8 0.~~00733224~~00000000 0.00000000 1.~~39266778~~40833345 0.00000000 1000.00000000 A-9 0.~~02976638~~00000000 0.00000000 5.~~65356633~~67500013 0.00000000 1000.00000000 A-10 0.~~02369900~~00000000 0.00000000 43.~~50111000~~23738500 0.00000000 ~~706~~658.~~33855540~~16992460 A-11 0.00000000 0.00000000 4.54166654 0.00000000 1000.00000000 A-12 0.~~00110758~~00000000 0.00000000 0.~~21039746~~00000000 0.00000000 0.00000000 A-13 0.~~00603689~~00000000 0.00000000 10.~~14668119~~00000000 0.00000000 0.00000000 A-14 0.~~00109108~~00000000 0.00000000 0.~~20724204~~20833312 0.00000000 1000.00000000 A-15 0.~~02291401~~00000000 0.00000000 4.~~35208599~~37500000 0.00000000 1000.00000000 PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~931~~929.~~10527331~~38357779 X 0.~~00101315~~00000000 0.00000000 0.~~19242636~~16734859 0.00000000 ~~795~~780.~~46111257~~35811234 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.~~02392943~~00000000 0.00000000 4.~~54493036~~56394243 0.00000000 ~~995~~994.~~76916435~~68382358 B-2 0.~~02392988~~00000000 0.00000000 4.~~54492936~~56394035 0.00000000 ~~995~~994.~~76916274~~68382522 B-3 0.~~02392806~~00000000 0.00000000 4.~~54492806~~56394245 0.00000000 ~~995~~994.~~76916547~~68382014 B-4 0.~~02392806~~00000000 0.00000000 4.~~54493525~~56394245 0.00000000 ~~995~~994.~~76916547~~68382734 B-5 0.~~02393474~~00000000 0.00000000 4.~~54493282~~56393474 0.00000000 ~~995~~994.~~76915547~~68381958 B-6 0.~~02393063~~00000000 0.00000000 4.~~54493713~~56393790 0.00000000 ~~995~~994.~~76916499~~68382102 (6) Amount Does Not Include Excess Special Hazard, ~~Bankrupcy~~Bankruptcy,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 326,~~545~~634,~~973~~157.5465 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 137,~~221~~892.1617 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 326,~~559~~642,~~194~~049.7082 Withdrawals Reimbursement for Servicer Advances 3313,~~202~~221.9716 Payment of Service Fee 6659,~~598~~883.8746 Payment of Interest and Principal 326,~~459~~568,~~392~~945.8620 Total Withdrawals (Pool Distribution Amount) 326,~~559~~642,~~194~~049.7082 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall ~~7,712~~0.1700 Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall ~~7,712~~0.1700

SERVICING FEES Gross Servicing Fee 6457,~~037~~580.3824 Master Servicing Fee 2,~~561~~303.4922 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 6659,~~598~~883.8746

OTHER ACCOUNTS Beginning Current Current Ending Account Type Balance Withdrawals Deposits Balance MBIA Insurance Fund 0.00 0.00 0.00 0.00 Reserve Fund 2019,~~000~~681.0085 ~~318~~0.1500 0.00 19,681.85 Rounding Account 999.99 0.00 0.00 999.99

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 21 0 0 0 21 ~~901~~416,~~697~~689.1516 0.00 0.00 0.00 ~~901~~416,~~697~~689.1516 60 Days 32 0 0 0 32 1875,~~331,032~~100.3540 0.00 0.00 0.00 1875,~~331,032~~100.3540 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 53 0 0 0 53 21,~~232~~291,~~729~~789.5056 0.00 0.00 0.00 21,~~232~~291,~~729~~789.5056 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 0.~~330579~~168634% 0.000000% 0.000000% 0.000000% 0.~~330579~~168634% 0.~~325966~~153553% 0.000000% 0.000000% 0.000000% 0.~~325966~~153553% 60 Days 0.~~495868~~337268% 0.000000% 0.000000% 0.000000% 0.~~495868~~337268% 0.~~481172~~322481% 0.000000% 0.000000% 0.000000% 0.~~481172~~322481% 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 0.~~826446~~505902% 0.000000% 0.000000% 0.000000% 0.~~826446~~505902% 0.~~807138~~476034% 0.000000% 0.000000% 0.000000% 0.~~807138~~476034%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 137,~~221~~892.1617

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 11,297,706.00 3.25158095% 11,~~204~~191,~~552~~845.9888 4.~~05396395~~12773752% 96.~~172781~~102801% 100.000000% Class R-I 11,297,656.00 3.25156656% 11,~~204~~191,~~552~~845.9888 4.~~05396395~~12773752% 0.000000% 0.000000% Class R-II 11,297,606.00 3.25155217% 11,~~204~~191,~~552~~845.9888 4.~~05396395~~12773752% 0.000000% 0.000000% Class X 10,597,761.00 3.05013051% 10,~~552~~541,~~923~~421.6143 3.~~81819533~~88785024% 0.000000% 0.000000% Class B-1 5,212,761.00 1.50027929% 5,~~190~~185,~~706~~049.6604 1.~~87807026~~91233168% 1.~~944710~~980269% 0.000000% Class B-2 3,301,761.00 0.95027638% 3,~~287~~284,~~791~~208.7925 1.~~18956905~~21127022% 0.~~690128~~702747% 0.000000% Class B-3 1,911,761.00 0.55022193% 1,~~903~~901,~~672~~597.6574 0.~~68877539~~70134064% 0.~~501977~~511156% 0.000000% Class B-4 1,216,761.00 0.35019471% 1,~~211~~210,~~613~~292.0848 0.~~43837856~~44637585% 0.~~250989~~255578% 0.000000% Class B-5 695,761.00 0.20024625% 692,~~817~~062.3521 0.~~25067101~~25524397% 0.~~188151~~191591% 0.000000% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~251263~~255858% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description Fixed 30 Year Weighted Average Gross Coupon 65.~~010672~~999489% Weighted Average Pass-Through Rate 5.~~720564~~739489% Weighted Average Maturity(Stepdown Calculation ) ~~351~~350 Beginning Scheduled Collateral Loan Count ~~669~~605 Number Of Loans Paid In Full 6412 Ending Scheduled Collateral Loan Count ~~605~~593 Beginning Scheduled Collateral Balance ~~307~~276,~~379~~385,~~428~~116.4518 Ending Scheduled Collateral Balance ~~276~~271,~~385~~137,~~116~~537.1888 Ending Actual Collateral Balance at 3130-~~Aug~~Sep-2003 ~~276~~271,~~622~~365,~~929~~210.8805 Monthly P &I Constant 1,~~870~~683,~~946~~510.8615 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 326,~~403~~507,~~735~~870.4752 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~276~~271,~~385~~137,~~116~~537.1888 Scheduled Principal ~~331~~301,~~316~~702.0930 Unscheduled Principal 304,~~662~~945,~~996~~876.1800

Miscellaneous Reporting Average Loss Severity 0.00 MBIA Premium Amount 557.29 Senior Prepayment Percentage 100.000000% Senior Percentage 96.~~555771~~172781% Subordinate Percentage 3.~~444229~~827219% Subordinate Prepayment Percentage 0.000000%

Filing Compare · PRIME MORTGAGE TRUST 2003-1