8-K 1 mst01001.txt NOVEMBER 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): November 26, 2001 MASTR ASSET SECURITIZATION TRUST Mortgage Pass-Through Certificates, Series 2001-1 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-79283-04 Pooling and Servicing Agreement) (Commission 52-2316425 (State or other File Number) 52-2316426 jurisdiction IRS EIN of Incorporation) c/o Wells Fargo Bank Minnesota, N.A., 11000 Broken Land Parkway Columbia, MD 21043 (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 November 26, 2001 a distribution was made to holders of MASTR ASSET SECURITIZATION TRUST, Mortgage Pass-Through Certificates, Series 2001-1 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 2001-1 Trust, relating to the November 26, 2001 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 ASSET SECURITIZATION TRUST Mortgage Pass-Through Certificates, Series 2001-1 Trust By: Wells Fargo Bank Minnesota, N.A. as Trustee By: /s/ Beth Belfield, Officer By: Beth Belfield, Officer Date: 12/5/01 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-1 Trust, relating to the November 26, 2001 distribution. EX-99.1

Mortgage Asset Securitization Transactions, Inc Mortgage Pass-Through Certificates Record Date: 910/3031/01 Distribution Date: 1011/2526/01 MASTR Series: 2001-1 Contact: Customer Service - SecuritiesLink Wells Fargo Bank Minnesota, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 Telephone: (301) 846-8130 Fax: (301) 815-6660 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution A-1 55265KAA7 SEN 6.75000% 57,~~733~~290,~~000~~230.0048 ~~324~~322,~~748~~257.1255 ~~442~~648,~~769~~242.5228 A-2 55265KAB5 SEN 6.75000% 4,153,000.00 23,360.6263 0.00 A-3 55265KAC3 SEN 43.~~29000~~07000% 4039,~~000~~693,~~000~~229.0051 ~~143~~101,~~000~~548.0051 ~~306~~449,~~770~~131.4919 A-4 55265KAD1 SEN 34.~~71000~~93000% 0.00 ~~123~~163,~~666~~073.6702 0.00 A-5 55265KAE9 SEN 6.75000% 43,200,000.00 243,000.00 0.00 A-6 55265KAF6 SEN 6.00000% 66,~~667~~155,~~000~~713.0029 ~~333~~330,~~335~~778.0057 ~~511~~748,~~286~~555.7173 A-7 55265KAG4 SEN 6.75000% 10,000,000.00 56,250.00 0.00 A-8 55265KAH2 SEN 6.75000% 9,~~044~~094,~~000~~872.00 50 51,~~872~~158.5066 (5051,~~872~~158.5066) PO 55265KAJ8 SEN 0.00000% ~~662~~661,~~451~~842.0042 0.00 ~~608~~1,099.5829 A-R 55265KAK5 SEN 6.75000% 500.00 0.4921 500.00 A-LR 55265KAQ2 SEN 6.75000% 500.00 0.2800 500.00 A-X 55265KAL3 SEN 0.~~34939~~34610% 0.00 6362,~~019~~080.3027 0.00 B-1 55265KAM1 SUB 6.75000% 3,~~838~~834,~~000~~941.0015 21,~~588~~571.7554 3,~~058~~092.8558 B-2 55265KAN9 SUB 6.75000% 1,~~679~~677,~~000~~661.0085 9,~~444~~436.3785 1,~~338~~352.1590 B-3 55265KAP4 SUB 6.75000% 1,~~199~~198,~~000~~044.0041 6,~~744~~739.3700 ~~955~~966.5913 B-4 55265KAR0 SUB 6.75000% ~~719~~718,~~000~~426.0096 4,~~044~~041.3815 ~~573~~579.0436 B-5 55265KAS8 SUB 6.75000% ~~480~~479,~~000~~617.0044 2,~~700~~697.0085 ~~382~~386.5677 B-6 55265KAT6 SUB 6.75000% ~~480~~479,~~364~~981.2333 2,~~702~~699.0590 ~~382~~387.8507 Totals ~~239~~238,~~854~~637,~~915~~561.2334 1,~~408~~400,~~476~~693.9071 1,~~217~~802,~~353~~634.8464

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 5756,~~290~~641,~~230~~988.4820 ~~767~~970,~~517~~499.6483 0.00 A-2 0.00 4,153,000.00 23,360.6263 0.00 A-3 0.00 39,~~693~~244,~~229~~098.5131 ~~449~~550,~~770~~679.4970 0.00 A-4 0.00 0.00 ~~123~~163,~~666~~073.6702 0.00 A-5 0.00 43,200,000.00 243,000.00 0.00 A-6 0.00 6665,~~155~~407,~~713~~157.2956 ~~844~~1,~~621~~079,334.7130 0.00 A-7 0.00 10,000,000.00 56,250.00 0.00 A-8 0.00 9,~~094~~146,~~872~~031.5016 0.00 0.00 PO 0.00 ~~661~~660,~~842~~743.4213 ~~608~~1,099.5829 0.00 A-R 0.00 0.00 500.4921 0.00 A-LR 0.00 0.00 500.2800 0.00 A-X 0.00 0.00 6362,~~019~~080.3027 0.00 B-1 0.00 3,~~834~~831,~~941~~848.1557 24,~~647~~664.6012 0.00 B-2 0.00 1,~~677~~676,~~661~~308.8595 10,~~782~~789.5275 0.00 B-3 0.00 1,~~198~~197,~~044~~078.4128 7,~~699~~705.9613 0.00 B-4 0.00 ~~718~~717,~~426~~847.9661 4,~~617~~620.4251 0.00 B-5 0.00 479,~~617~~230.4467 3,~~082~~084.5662 0.00 B-6 0.00 479,~~981~~594.3327 3,~~084~~086.9097 0.00 Totals 0.00 ~~238~~236,~~637~~834,~~561~~926.3471 23,~~625~~203,~~830~~328.7435 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 57,733,000.00 57,~~733~~290,~~000~~230.0048 6766,~~306~~871.3612 ~~375~~581,~~463~~371.1615 0.00 0.00 A-2 4,153,000.00 4,153,000.00 0.00 0.00 0.00 0.00 A-3 40,000,000.00 4039,~~000~~693,~~000~~229.0051 46,~~632~~331.8530 ~~260~~402,~~137~~799.6489 0.00 0.00 A-4 0.00 0.00 0.00 0.00 0.00 0.00 A-5 43,200,000.00 43,200,000.00 0.00 0.00 0.00 0.00 A-6 66,667,000.00 66,~~667~~155,~~000~~713.0029 77,~~721~~219.8122 ~~433~~671,~~564~~336.9051 0.00 0.00 A-7 10,000,000.00 10,000,000.00 0.00 0.00 0.00 0.00 A-8 9,044,000.00 9,~~044~~094,~~000~~872.0050 0.00 0.00 (5051,~~872~~158.5066) 0.00 PO 662,451.00 ~~662~~661,~~451~~842.0042 ~~596~~600.7114 11499.8715 0.00 0.00 A-R 50.00 500.00 70.6000 420.4000 0.00 0.00 A-LR 50.00 500.00 70.6000 420.4000 0.00 0.00 A-X 0.00 0.00 0.00 0.00 0.00 0.00 B-1 3,838,000.00 3,~~838~~834,~~000~~941.0015 3,~~058~~092.8558 0.00 0.00 0.00 B-2 1,679,000.00 1,~~679~~677,~~000~~661.0085 1,~~338~~352.1590 0.00 0.00 0.00 B-3 1,199,000.00 1,~~199~~198,~~000~~044.0041 ~~955~~966.5913 0.00 0.00 0.00 B-4 719,000.00 ~~719~~718,~~000~~426.0096 ~~573~~579.0436 0.00 0.00 0.00 B-5 480,000.00 ~~480~~479,~~000~~617.0044 ~~382~~386.5677 0.00 0.00 0.00 B-6 480,364.23 ~~480~~479,~~364~~981.2333 ~~382~~387.8507 0.00 0.00 0.00 Totals 239,854,915.23 ~~239~~238,~~854~~637,~~915~~561.2334 ~~198~~197,~~963~~786.9759 1,~~069~~656,~~262~~006.3770 (5051,~~872~~158.5066) 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 ~~442~~648,~~769~~242.5228 5756,~~290~~641,~~230~~988.4820 0.~~99233074~~98110246 ~~442~~648,~~769~~242.5228 A-2 0.00 4,153,000.00 1.00000000 0.00 A-3 ~~306~~449,~~770~~131.4919 39,~~693~~244,~~229~~098.5131 0.~~99233074~~98110246 ~~306~~449,~~770~~131.4919 A-4 0.00 0.00 0.00000000 0.00 A-5 0.00 43,200,000.00 1.00000000 0.00 A-6 ~~511~~748,~~286~~555.7173 6665,~~155~~407,~~713~~157.2956 0.~~99233074~~98110246 ~~511~~748,~~286~~555.7173 A-7 0.00 10,000,000.00 1.00000000 0.00 A-8 (5051,~~872~~158.5066) 9,~~094~~146,~~872~~031.5016 1.~~00562500~~01128164 (5051,~~872~~158.5066) PO ~~608~~1,099.5829 ~~661~~660,~~842~~743.4213 0.~~99908132~~99742189 ~~608~~1,099.5829 A-R 500.00 0.00 0.00000000 500.00 A-LR 500.00 0.00 0.00000000 500.00 A-X 0.00 0.00 0.00000000 0.00 B-1 3,~~058~~092.8558 3,~~834~~831,~~941~~848.1557 0.~~99920301~~99839723 3,~~058~~092.8558 B-2 1,~~338~~352.1590 1,~~677~~676,~~661~~308.8595 0.~~99920301~~99839723 1,~~338~~352.1590 B-3 ~~955~~966.5913 1,~~198~~197,~~044~~078.4128 0.~~99920301~~99839723 ~~955~~966.5913 B-4 ~~573~~579.0436 ~~718~~717,~~426~~847.9661 0.~~99920300~~99839723 ~~573~~579.0436 B-5 ~~382~~386.5677 479,~~617~~230.4467 0.~~99920300~~99839723 ~~382~~386.5677 B-6 ~~382~~387.8507 479,~~981~~594.3327 0.~~99920290~~99839713 ~~382~~387.8507 Totals 1,~~217~~802,~~353~~634.8464 ~~238~~236,~~637~~834,~~561~~926.3471 0.~~99492462~~98740910 1,~~217~~802,~~353~~634.8464

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 57,733,000.00 ~~1000~~992.~~00000000~~33073771 1.~~16582128~~15828244 610.~~50344101~~06999723 0.00000000 A-2 4,153,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-3 40,000,000.00 ~~1000~~992.~~00000000~~33073775 1.~~16582125~~15828250 610.~~50344100~~06999725 0.00000000 A-4 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-5 43,200,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-6 66,667,000.00 ~~1000~~992.~~00000000~~33073770 1.~~16582132~~15828251 610.~~50344098~~06999730 0.00000000 A-7 10,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-8 9,044,000.00 ~~1000~~1005.~~00000000~~62500000 0.00000000 0.00000000 (5.~~62500000~~65664087) PO 662,451.00 ~~1000~~999.~~00000000~~08132073 0.~~90076096~~90593870 0.~~01791831~~75348969 0.00000000 A-R 50.00 ~~1000~~0.00000000 ~~152~~0.00000000 ~~848~~0.00000000 0.00000000 A-LR 50.00 ~~1000~~0.00000000 ~~152~~0.00000000 ~~848~~0.00000000 0.00000000 A-X 0.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 3,838,000.00 ~~1000~~999.~~00000000~~20300938 0.~~79699062~~80577905 0.00000000 0.00000000 B-2 1,679,000.00 ~~1000~~999.~~00000000~~20300774 0.~~79699226~~80577725 0.00000000 0.00000000 B-3 1,199,000.00 ~~1000~~999.~~00000000~~20301084 0.~~79698916~~80577982 0.00000000 0.00000000 B-4 719,000.00 ~~1000~~999.~~00000000~~20300417 0.~~79699583~~80578581 0.00000000 0.00000000 B-5 480,000.00 ~~1000~~999.~~00000000~~20300000 0.~~79700000~~80577083 0.00000000 0.00000000 B-6 480,364.23 ~~1000~~999.~~00000000~~20289652 0.~~79699939~~80578439 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 711.~~66926229~~22827984 ~~992~~981.~~33073771~~10245787 0.~~99233074~~98110246 711.~~66926229~~22827984 A-2 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-3 0.00000000 711.~~66926225~~22827975 ~~992~~981.~~33073775~~10245775 0.~~99233074~~98110246 711.~~66926225~~22827975 A-4 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-5 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-6 0.00000000 711.~~66926230~~22827981 ~~992~~981.~~33073770~~10245789 0.~~99233074~~98110246 711.~~66926230~~22827981 A-7 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-8 0.00000000 (5.~~62500000~~65664087) 1,~~005~~011.~~62500000~~28164087 1.~~00562500~~01128164 (5.~~62500000~~65664087) PO 0.00000000 01.~~91867927~~65942840 ~~999~~997.~~08132073~~42189234 0.~~99908132~~99742189 01.~~91867927~~65942840 A-R 0.00000000 ~~1,000~~0.00000000 0.00000000 0.00000000 ~~1,000~~0.00000000 A-LR 0.00000000 ~~1,000~~0.00000000 0.00000000 0.00000000 ~~1,000~~0.00000000 A-X 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 0.~~79699062~~80577905 ~~999~~998.~~20300938~~39723033 0.~~99920301~~99839723 0.~~79699062~~80577905 B-2 0.00000000 0.~~79699226~~80577725 ~~999~~998.~~20300774~~39723049 0.~~99920301~~99839723 0.~~79699226~~80577725 B-3 0.00000000 0.~~79698916~~80577982 ~~999~~998.~~20301084~~39723103 0.~~99920301~~99839723 0.~~79698916~~80577982 B-4 0.00000000 0.~~79699583~~80578581 ~~999~~998.~~20300417~~39723227 0.~~99920300~~99839723 0.~~79699583~~80578581 B-5 0.00000000 0.~~79700000~~80577083 ~~999~~998.~~20300000~~39722917 0.~~99920300~~99839723 0.~~79700000~~80577083 B-6 0.00000000 0.~~79699939~~80578439 ~~999~~998.~~20289652~~39713294 0.~~99920290~~99839713 0.~~79699939~~80578439 (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 A-1 57,733,000.00 6.75000% 57,~~733~~290,~~000~~230.0048 ~~324~~322,~~748~~257.1355 0.00 0.00 A-2 4,153,000.00 6.75000% 4,153,000.00 23,360.63 0.00 0.00 A-3 40,000,000.00 43.~~29000~~07000% 4039,~~000~~693,~~000~~229.0051 ~~143~~101,~~000~~548.0051 0.00 0.00 A-4 0.00 34.~~71000~~93000% 4039,~~000~~693,~~000~~229.0051 ~~123~~163,~~666~~073.6702 0.00 0.00 A-5 43,200,000.00 6.75000% 43,200,000.00 243,000.00 0.00 0.00 A-6 66,667,000.00 6.00000% 66,~~667~~155,~~000~~713.0029 ~~333~~330,~~335~~778.0057 0.00 0.00 A-7 10,000,000.00 6.75000% 10,000,000.00 56,250.00 0.00 0.00 A-8 9,044,000.00 6.75000% 9,~~044~~094,~~000~~872.00 50 51,~~872~~158.5066 0.00 0.00 PO 662,451.00 0.00000% ~~662~~661,~~451~~842.0042 0.00 0.00 0.00 A-R 50.00 6.75000% 500.00 0.2800 0.00 0.00 A-LR 50.00 6.75000% 500.00 0.2800 0.00 0.00 A-X 0.00 0.~~34939~~34610% ~~216~~215,~~440~~244,~~623~~593.0012 6362,~~019~~080.3027 0.00 0.00 B-1 3,838,000.00 6.75000% 3,~~838~~834,~~000~~941.0015 21,~~588~~571.7554 0.00 0.00 B-2 1,679,000.00 6.75000% 1,~~679~~677,~~000~~661.0085 9,~~444~~436.3885 0.00 0.00 B-3 1,199,000.00 6.75000% 1,~~199~~198,~~000~~044.0041 6,~~744~~739.3800 0.00 0.00 B-4 719,000.00 6.75000% ~~719~~718,~~000~~426.0096 4,~~044~~041.3815 0.00 0.00 B-5 480,000.00 6.75000% ~~480~~479,~~000~~617.0044 2,~~700~~697.0085 0.00 0.00 B-6 480,364.23 6.75000% ~~480~~479,~~364~~981.2333 2,~~702~~699.0590 0.00 0.00 Totals 239,854,915.23 1,~~408~~400,~~476~~693.7350 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 ~~324~~322,~~748~~257.1255 0.00 5756,~~290~~641,~~230~~988.4820 A-2 0.00 0.00 23,360.6263 0.00 4,153,000.00 A-3 0.00 0.00 ~~143~~101,~~000~~548.0051 0.00 39,~~693~~244,~~229~~098.5131 A-4 0.00 0.00 ~~123~~163,~~666~~073.6702 0.00 39,~~693~~244,~~229~~098.5131 A-5 0.00 0.00 243,000.00 0.00 43,200,000.00 A-6 0.00 0.00 ~~333~~330,~~335~~778.0057 0.00 6665,~~155~~407,~~713~~157.2956 A-7 0.00 0.00 56,250.00 0.00 10,000,000.00 A-8 0.00 0.00 5051,~~872~~158.5066 0.00 9,~~094~~146,~~872~~031.5016 PO 0.00 0.00 0.00 0.00 ~~661~~660,~~842~~743.4213 A-R 0.00 0.00 0.4921 0.00 0.00 A-LR 0.00 0.00 0.2800 0.00 0.00 A-X 0.00 0.00 6362,~~019~~080.3027 0.00 ~~215~~213,~~244~~471,~~593~~143.1208 B-1 0.00 0.00 21,~~588~~571.7554 0.00 3,~~834~~831,~~941~~848.1557 B-2 0.00 0.00 9,~~444~~436.3785 0.00 1,~~677~~676,~~661~~308.8595 B-3 0.00 0.00 6,~~744~~739.3700 0.00 1,~~198~~197,~~044~~078.4128 B-4 0.00 0.00 4,~~044~~041.3815 0.00 ~~718~~717,~~426~~847.9661 B-5 0.00 0.00 2,~~700~~697.0085 0.00 479,~~617~~230.4467 B-6 0.00 0.00 2,~~702~~699.0590 0.00 479,~~981~~594.3327 Totals 0.00 0.00 1,~~408~~400,~~476~~693.9071 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 A-1 57,733,000.00 6.75000% ~~1000~~992.~~00000000~~33073771 5.~~62500009~~58186046 0.00000000 0.00000000 A-2 4,153,000.00 6.75000% 1000.00000000 5.62500120 0.00000000 0.00000000 A-3 40,000,000.00 43.~~29000~~07000% ~~1000~~992.~~00000000~~33073775 32.~~57500000~~53871275 0.00000000 0.00000000 A-4 0.00 34.~~71000~~93000% ~~1000~~992.~~00000000~~33073775 34.~~09166675~~07682550 0.00000000 0.00000000 A-5 43,200,000.00 6.75000% 1000.00000000 5.62500000 0.00000000 0.00000000 A-6 66,667,000.00 6.00000% ~~1000~~992.~~00000000~~33073770 54.~~00000000~~96165374 0.00000000 0.00000000 A-7 10,000,000.00 6.75000% 1000.00000000 5.62500000 0.00000000 0.00000000 A-8 9,044,000.00 6.75000% ~~1000~~1005.~~00000000~~62500000 5.~~62500000~~65664087 0.00000000 0.00000000 PO 662,451.00 0.00000% ~~1000~~999.~~00000000~~08132073 0.00000000 0.00000000 0.00000000 A-R 50.00 6.75000% ~~1000~~0.00000000 50.~~60000000~~00000000 0.00000000 0.00000000 A-LR 50.00 6.75000% ~~1000~~0.00000000 50.~~60000000~~00000000 0.00000000 0.00000000 A-X 0.00 0.~~34939~~34610% ~~1000~~994.~~00000000~~47409704 0.~~29116207~~28682356 0.00000000 0.00000000 B-1 3,838,000.00 6.75000% ~~1000~~999.~~00000000~~20300938 5.~~62500000~~62051589 0.00000000 0.00000000 B-2 1,679,000.00 6.75000% ~~1000~~999.~~00000000~~20300774 5.~~62500298~~62051817 0.00000000 0.00000000 B-3 1,199,000.00 6.75000% ~~1000~~999.~~00000000~~20301084 5.~~62500417~~62051710 0.00000000 0.00000000 B-4 719,000.00 6.75000% ~~1000~~999.~~00000000~~20300417 5.~~62500695~~62051460 0.00000000 0.00000000 B-5 480,000.00 6.75000% ~~1000~~999.~~00000000~~20300000 5.~~62500000~~62052083 0.00000000 0.00000000 B-6 480,364.23 6.75000% ~~1000~~999.~~00000000~~20289652 5.~~62500251~~62052674 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 5.~~62499991~~58186046 0.00000000 ~~992~~981.~~33073771~~10245787 A-2 0.00000000 0.00000000 5.~~62499880~~62500120 0.00000000 1000.00000000 A-3 0.00000000 0.00000000 32.~~57500000~~53871275 0.00000000 ~~992~~981.~~33073775~~10245775 A-4 0.00000000 0.00000000 34.~~09166675~~07682550 0.00000000 ~~992~~981.~~33073775~~10245775 A-5 0.00000000 0.00000000 5.62500000 0.00000000 1000.00000000 A-6 0.00000000 0.00000000 54.~~00000000~~96165374 0.00000000 ~~992~~981.~~33073770~~10245789 A-7 0.00000000 0.00000000 5.62500000 0.00000000 1000.00000000 A-8 0.00000000 0.00000000 5.~~62500000~~65664087 0.00000000 ~~1005~~1011.~~62500000~~28164087 PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~999~~997.~~08132073~~42189234 A-R 0.00000000 0.00000000 94.~~80000000~~20000000 0.00000000 0.00000000 A-LR 0.00000000 0.00000000 50.~~60000000~~00000000 0.00000000 0.00000000 A-X 0.00000000 0.00000000 0.~~29116207~~28682356 0.00000000 ~~994~~986.~~47409704~~28039469 B-1 0.00000000 0.00000000 5.~~62500000~~62051589 0.00000000 ~~999~~998.~~20300938~~39723033 B-2 0.00000000 0.00000000 5.~~62499702~~62051817 0.00000000 ~~999~~998.~~20300774~~39723049 B-3 0.00000000 0.00000000 5.~~62499583~~62051710 0.00000000 ~~999~~998.~~20301084~~39723103 B-4 0.00000000 0.00000000 5.~~62500695~~62051460 0.00000000 ~~999~~998.~~20300417~~39723227 B-5 0.00000000 0.00000000 5.~~62500000~~62052083 0.00000000 ~~999~~998.~~20300000~~39722917 B-6 0.00000000 0.00000000 5.~~62500251~~62052674 0.00000000 ~~999~~998.~~20289652~~39713294 (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 23,~~648~~225,~~745~~183.0183 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 2728,~~650~~455.6445 Realized Losses 0.00 Prepayment Penalties 0.00 Total Deposits 23,~~676~~253,~~395~~639.6528 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 50,~~564~~310.9193 Payment of Interest and Principal 23,~~625~~203,~~830~~328.7435 Total Withdrawals (Pool Distribution Amount) 23,~~676~~253,~~395~~639.6528 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee 50,~~564~~310.9193 ~~Special Servicing Fee 0.00~~ Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 50,~~564~~310.9193

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 109 0 0 0 109 4,~~135~~192,~~428~~438.7073 0.00 0.00 0.00 4,~~135~~192,~~428~~438.7073 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 109 0 0 0 109 4,~~135~~192,~~428~~438.7073 0.00 0.00 0.00 4,~~135~~192,~~428~~438.7073 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 1.~~650165~~495017% 0.000000% 0.000000% 0.000000% 1.~~650165~~495017% 1.~~731798~~769062% 0.000000% 0.000000% 0.000000% 1.~~731798~~769062% 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 1.~~650165~~495017% 0.000000% 0.000000% 0.000000% 1.~~650165~~495017% 1.~~731798~~769062% 0.000000% 0.000000% 0.000000% 1.~~731798~~769062%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 2728,~~650~~455.6445

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 9,057,815.23 3.77637257% 9,~~050~~042,~~515~~651.5648 3.~~79257796~~81812413% 96.~~474988~~450963% 100.000000% Class B-1 4,557,364.23 1.90005038% 4,~~553~~550,~~731~~059.9978 1.~~90822097~~92119458% 1.~~611484~~622467% 0.000000% Class B-2 2,878,364.23 1.20004388% 2,~~876~~873,~~070~~750.1483 1.~~20520430~~21339824% 0.~~704972~~709777% 0.000000% Class B-3 1,679,364.23 0.70015836% 1,~~678~~676,~~025~~672.7355 0.~~70316916~~70794987% 0.~~503431~~506862% 0.000000% Class B-4 960,364.23 0.40039381% ~~959~~958,~~598~~824.7794 0.~~40211556~~40484947% 0.~~301891~~303948% 0.000000% Class B-5 480,364.23 0.20027283% 479,~~981~~594.3327 0.~~20113402~~20250150% 0.~~201540~~202914% 0.000000% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~201693~~203068% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

CREDIT ENHANCEMENT Original $ Original % Current $ Current % Bankruptcy 100,000.00 0.04169187% 100,000.00 0.~~04190455~~04222350% Fraud 2,398,549.15 1.00000000% 2,398,549.15 1.~~00510127~~01275145% Special Hazard 2,399,675.00 1.00046939% 2,399,675.00 1.~~00557305~~01322682% Limit of Subordinate's Exposure to Certain Types of Losses

COLLATERAL STATEMENT Collateral Description Mixed Fixed Weighted Average Gross Coupon 7.~~299622~~296444% Weighted Average Pass-Through Rate 7.~~046644~~043453% Weighted Average Maturity(Stepdown Calculation ) ~~356~~355 Beginning Scheduled Collateral Loan Count ~~608~~606 Number Of Loans Paid In Full 24 Ending Scheduled Collateral Loan Count ~~606~~602 Beginning Scheduled Collateral Balance ~~239~~238,~~854~~637,~~915~~561.2335 Ending Scheduled Collateral Balance ~~238~~236,~~637~~834,~~561~~926.3570 Ending Actual Collateral Balance at 3031-~~Sep~~Oct-2001 ~~238~~236,~~793~~986,~~999~~581.8811 Monthly P &I Constant 1,~~650~~643,~~272~~513.5285 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 2,~~384~~923,~~621~~124.0445 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~238~~236,~~637~~834,~~561~~926.3570 Scheduled Principal ~~191~~192,~~230~~509.7119 Unscheduled Principal 1,~~026~~610,~~123~~125.1246

~~COLLATERAL~~Senior ~~STATEMENT~~Prepayment ~~Collateral~~Percentage ~~Description Mixed Fixed Weighted Average Coupon Rate 7~~100.~~299622~~000000% ~~Weighted~~Senior ~~Average~~Percentage ~~Net Rate 7~~96.~~046644~~474988% ~~Weighted~~Junior ~~Average~~Percentage Pass Through Rate 7.046644% Weighted Average Maturity 356 Record Date 09/30/2001 Principal and Interest Constant 1,650,272.52 Beginning Loan Count 608 Loans Paid in Full 2 Ending Loan Count 606 Beginning Scheduled Balance 239,854,915.23 Ending Scheduled Balance 238,637,561.35 Ending Actual Balance at 30-Sep-2001 238,793,999.88 Scheduled Principal 191,230.71 Unscheduled Principal 1,026,123.12 Scheduled Interest 1,459,041.81 Servicing Fee 50,564.91 Master Servicing Fee 0.00 Trustee Fee 0.00 FRY Amount 0.00 Special Hazard Fee 0.00 Other Fee 0.00 Pool Insurance Fee 0.00 Spread 1 0.00 Spread 2 0.00 Spread 3 0.~~00 Net Interest 1,408,476.90 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Percentage of Cumulative Losses 0.00 Special Servicing Fee 0.00 Prepayment Penalties 0.00~~525012%

Miscellaneous Reporting Senior Prepayment Percentage 100.000000% Senior Percentage 96.490122% Junior Percentage 3.509878%

Filing Compare · MASTER ASSET SECURITIZATION TRUST 2001 1