8-K 1 wfm02013.txt OCTOBER 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): October 25, 2002 WELLS FARGO ASSET SECURITIES CORPORATION Mortgage Pass-Through Certificates, Series 2002-13 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-74308-17 Pooling and Servicing Agreement) (Commission (State or other File Number) Pending jurisdiction IRS EIN 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 25, 2002 a distribution was made to holders of WELLS FARGO ASSET SECURITIES CORPORATION, Mortgage Pass-Through Certificates, Series 2002-13 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 2002-13 Trust, relating to the October 25, 2002 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. WELLS FARGO ASSET SECURITIES CORPORATION Mortgage Pass-Through Certificates, Series 2002-13 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: 10/31/02 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2002-13 Trust, relating to the October 25, 2002 distribution. EX-99.1

Wells Fargo Asset Securities Corporation Mortgage Pass-Through Certificates Record Date: 89/3130/02 ~~Distribution Date: 9~~10/25/02 Distribution Date: WFMBS Series: 2002-13 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 94976SAA9 SEQ 4.10000% ~~131~~129,~~399~~903,~~599~~147.1077 ~~448~~443,~~937~~832.5613 1,~~496~~766,~~451~~283.3317 A-2 94976SAB7 SEQ 5.30000% 12,~~354~~275,~~191~~932.1148 54,~~563~~218.0026 7881,~~258~~783.6408 A-3 94976SAC5 SEQ 6.00000% 4,~~942~~911,~~609~~807.6303 24,~~712~~558.4483 3032,~~802~~189.6082 A-4 94976SAD3 SEQ 6.00000% 10,000,000.00 49,~~998~~999.7759 0.00 A-5 94976SAE1 SEQ 6.00000% 0.00 ~~215~~212,~~250~~839.6721 0.00 A-6 94976SAL5 SEQ 6.00000% 2220,~~209~~085,~~342~~093.1246 ~~111~~100,~~043~~424.9765 2,~~124~~468,~~248~~561.6636 A-7 94976SAM3 SEQ 6.00000% 2726,~~918~~072,~~970~~583.1485 ~~139~~130,~~591~~361.4186 12,~~846~~437,~~386~~410.3046 A-PO 94976SAF8 PO 0.00000% ~~708~~704,~~262~~699.0235 0.00 3,~~562~~040.6765 A-R 94976SAG6 RES 6.00000% 0.00 0.00 0.00 A-LR 94976SAN1 RES 6.00000% 0.00 0.00 0.00 B-1 94976SAH4 SUB 6.00000% 1,~~639~~633,~~039~~519.0469 8,~~194~~167.9953 5,~~519~~478.3586 B-2 94976SAJ0 SUB 6.00000% ~~546~~544,~~346~~506.3556 2,~~731~~722.6651 1,~~839~~826.7829 B-3 94976SAK7 SUB 6.00000% ~~438~~436,~~070~~595.4326 2,~~190~~182.3096 1,~~475~~464.1735 B-4 94976SAP6 SUB 6.00000% ~~218~~217,~~538~~802.5462 1,~~092~~089.6700 ~~735~~730.9151 B-5 94976SAQ4 SUB 6.00000% ~~109~~108,~~269~~901.2731 ~~546~~544.3350 ~~367~~365.9626 B-6 94976SAR2 SUB 6.00000% 218,~~781~~044.2955 1,~~093~~090.8821 ~~736~~731.7333 Totals ~~212~~207,~~703~~112,~~019~~633.0493 1,~~059~~032,~~947~~031.6524 56,~~590~~799,~~385~~865.1014

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 ~~129~~128,~~903~~136,~~147~~864.7760 12,~~945~~210,~~388~~115.8930 0.00 A-2 0.00 12,~~275~~194,~~932~~149.4840 ~~132~~136,~~821~~001.6434 0.00 A-3 0.00 4,~~911~~879,~~807~~617.0321 5556,~~515~~748.0465 0.00 A-4 0.00 10,000,000.00 49,~~998~~999.7759 0.00 A-5 0.00 0.00 ~~215~~212,~~250~~839.6721 0.00 A-6 0.00 2017,~~085~~616,~~093~~532.4611 2,~~235~~568,~~292~~986.6301 0.00 A-7 0.00 2623,~~072~~635,~~583~~173.8538 12,~~985~~567,~~977~~772.7132 0.00 A-PO 0.00 ~~704~~701,~~699~~658.3570 3,~~562~~040.6765 0.00 A-R 0.00 0.00 0.00 0.00 A-LR 0.00 0.00 0.00 0.00 B-1 0.00 1,~~633~~628,~~519~~040.6983 13,~~714~~646.3439 0.00 B-2 0.00 ~~544~~542,~~506~~680.5628 4,~~571~~548.4480 0.00 B-3 0.00 ~~436~~435,~~595~~130.2691 3,~~665~~647.4731 0.00 B-4 0.00 217,~~802~~072.6211 1,~~828~~819.5851 0.00 B-5 0.00 108,~~901~~536.3106 ~~914~~909.2976 0.00 B-6 0.00 ~~218~~217,~~044~~313.5523 1,~~830~~821.6154 0.00 Totals 0.00 ~~207~~200,~~112~~312,~~633~~768.9382 67,~~650~~831,~~332~~896.7538 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-1 133,646,000.00 ~~131~~129,~~399~~903,~~599~~147.1077 ~~188~~177,~~716~~429.1119 1,~~307~~588,~~735~~853.2298 0.00 0.00 A-2 12,500,000.00 12,~~354~~275,~~191~~932.1148 98,~~869~~215.1339 6873,~~389~~567.5169 0.00 0.00 A-3 5,000,000.00 4,~~942~~911,~~609~~807.6303 3,~~884~~233.4958 2628,~~918~~956.1124 0.00 0.00 A-4 10,000,000.00 10,000,000.00 0.00 0.00 0.00 0.00 A-5 0.00 0.00 0.00 0.00 0.00 0.00 A-6 25,000,000.00 2220,~~209~~085,~~342~~093.1246 ~~267~~247,~~887~~975.0644 12,~~856~~220,~~361~~585.6092 0.00 0.00 A-7 30,000,000.00 2726,~~918~~072,~~970~~583.1485 ~~232~~244,846.0923 12,~~613~~192,~~540~~564.2124 0.00 0.00 A-PO 729,854.53 ~~708~~704,~~262~~699.0235 2,~~518~~536.5887 ~~1,044~~503.0978 0.00 0.00 A-R 50.00 0.00 0.00 0.00 0.00 0.00 A-LR 50.00 0.00 0.00 0.00 0.00 0.00 B-1 1,650,000.00 1,~~639~~633,~~039~~519.0469 5,~~519~~478.3586 0.00 0.00 0.00 B-2 550,000.00 ~~546~~544,~~346~~506.3556 1,~~839~~826.7829 0.00 0.00 0.00 B-3 441,000.00 ~~438~~436,~~070~~595.4326 1,~~475~~464.1735 0.00 0.00 0.00 B-4 220,000.00 ~~218~~217,~~538~~802.5462 ~~735~~730.9151 0.00 0.00 0.00 B-5 110,000.00 ~~109~~108,~~269~~901.2731 ~~367~~365.9626 0.00 0.00 0.00 B-6 220,244.37 218,~~781~~044.2955 ~~736~~731.7333 0.00 0.00 0.00 Totals 220,067,198.90 ~~212~~207,~~703~~112,~~019~~633.0493 ~~716~~694,~~396~~833.3630 46,~~873~~105,~~988~~031.7485 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 1,~~496~~766,~~451~~283.3317 ~~129~~128,~~903~~136,~~147~~864.7760 0.~~97199428~~95877815 1,~~496~~766,~~451~~283.3317 A-2 7881,~~258~~783.6408 12,~~275~~194,~~932~~149.4840 0.~~98207460~~97553195 7881,~~258~~783.6408 A-3 3032,~~802~~189.6082 4,~~911~~879,~~807~~617.0321 0.~~98236141~~97592344 3032,~~802~~189.6082 A-4 0.00 10,000,000.00 1.00000000 0.00 A-5 0.00 0.00 0.00000000 0.00 A-6 2,~~124~~468,~~248~~561.6636 2017,~~085~~616,~~093~~532.4611 0.~~80340374~~70466128 2,~~124~~468,~~248~~561.6636 A-7 12,~~846~~437,~~386~~410.3046 2623,~~072~~635,~~583~~173.8538 0.~~86908613~~78783911 12,~~846~~437,~~386~~410.3046 A-PO 3,~~562~~040.6765 ~~704~~701,~~699~~658.3570 0.~~96553398~~96136788 3,~~562~~040.6765 A-R 0.00 0.00 0.00000000 0.00 A-LR 0.00 0.00 0.00000000 0.00 B-1 5,~~519~~478.3586 1,~~633~~628,~~519~~040.6983 0.~~99001193~~98669141 5,~~519~~478.3586 B-2 1,~~839~~826.7829 ~~544~~542,~~506~~680.5628 0.~~99001193~~98669142 1,~~839~~826.7829 B-3 1,~~475~~464.1735 ~~436~~435,~~595~~130.2691 0.~~99001193~~98669141 1,~~475~~464.1735 B-4 ~~735~~730.9151 217,~~802~~072.6211 0.~~99001191~~98669141 ~~735~~730.9151 B-5 ~~367~~365.9626 108,~~901~~536.3106 0.~~99001191~~98669145 ~~367~~365.9626 B-6 ~~736~~731.7333 ~~218~~217,~~044~~313.5523 0.~~99001191~~98669142 ~~736~~731.7333 Totals 56,~~590~~799,~~385~~865.1014 ~~207~~200,~~112~~312,~~633~~768.9382 0.~~94113359~~91023455 56,~~590~~799,~~385~~865.1014

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 133,646,000.00 ~~983~~971.~~19140939~~99428168 1.~~41205955~~32760569 911.~~78506817~~88852626 0.00000000 A-2 12,500,000.00 ~~988~~982.~~33528880~~07459840 0.~~78953040~~65723120 5.~~47116080~~88541520 0.00000000 A-3 5,000,000.00 ~~988~~982.~~52192600~~36140600 0.~~77689800~~64671600 5.~~38362200~~79124800 0.00000000 A-4 10,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-5 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-6 25,000,000.00 ~~888~~803.~~37368480~~40373840 109.~~71548240~~91901760 7488.~~25446400~~82343680 0.00000000 A-7 30,000,000.00 ~~930~~869.~~63233800~~08612833 78.~~76153633~~16154100 5373.~~78467367~~08547467 0.00000000 A-PO 729,854.53 ~~970~~965.~~41532372~~53398113 3.~~45079724~~47585703 10.~~43054534~~69024714 0.00000000 A-R 50.00 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 50.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 1,650,000.00 ~~993~~990.~~35699394~~01193333 3.~~34506061~~32052121 0.00000000 0.00000000 B-2 550,000.00 ~~993~~990.~~35700000~~01192727 3.~~34505455~~32052727 0.00000000 0.00000000 B-3 441,000.00 ~~993~~990.~~35698413~~01192744 3.~~34505669~~32052154 0.00000000 0.00000000 B-4 220,000.00 ~~993~~990.~~35700000~~01190909 3.~~34504545~~32050000 0.00000000 0.00000000 B-5 110,000.00 ~~993~~990.~~35700000~~01190909 3.~~34509091~~32054545 0.00000000 0.00000000 B-6 220,244.37 ~~993~~990.~~35701521~~01191268 3.~~34505713~~32053891 0.00000000 0.00000000 (2) per $1000 denomination.

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 1113.~~19712771~~21613195 ~~971~~958.~~99428168~~77814974 0.~~97199428~~95877815 1113.~~19712771~~21613195 A-2 0.00000000 6.~~26069120~~54264640 ~~982~~975.~~07459840~~53195200 0.~~98207460~~97553195 6.~~26069120~~54264640 A-3 0.00000000 6.~~16052000~~43796400 ~~982~~975.~~36140600~~92344200 0.~~98236141~~97592344 6.~~16052000~~43796400 A-4 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-5 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-6 0.00000000 8498.~~96994640~~74245440 ~~803~~704.~~40373840~~66128440 0.~~80340374~~70466128 8498.~~96994640~~74245440 A-7 0.00000000 6181.~~54621000~~24701533 ~~869~~787.~~08612833~~83911267 0.~~86908613~~78783911 6181.~~54621000~~24701533 A-PO 0.00000000 4.~~88134259~~16610417 ~~965~~961.~~53398113~~36787697 0.~~96553398~~96136788 4.~~88134259~~16610417 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 3.~~34506061~~32052121 ~~990~~986.~~01193333~~69141212 0.~~99001193~~98669141 3.~~34506061~~32052121 B-2 0.00000000 3.~~34505455~~32052727 ~~990~~986.~~01192727~~69141818 0.~~99001193~~98669142 3.~~34505455~~32052727 B-3 0.00000000 3.~~34505669~~32052154 ~~990~~986.~~01192744~~69140590 0.~~99001193~~98669141 3.~~34505669~~32052154 B-4 0.00000000 3.~~34504545~~32050000 ~~990~~986.~~01190909~~69140909 0.~~99001191~~98669141 3.~~34504545~~32050000 B-5 0.00000000 3.~~34509091~~32054545 ~~990~~986.~~01190909~~69145455 0.~~99001191~~98669145 3.~~34509091~~32054545 B-6 0.00000000 3.~~34505713~~32053891 ~~990~~986.~~01191268~~69141917 0.~~99001191~~98669142 3.~~34505713~~32053891 (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-1 133,646,000.00 4.10000% ~~131~~129,~~399~~903,~~599~~147.1077 ~~448~~443,~~948~~835.6375 0.00 0.00 A-2 12,500,000.00 5.30000% 12,~~354~~275,~~191~~932.1148 54,~~564~~218.3470 0.00 0.00 A-3 5,000,000.00 6.00000% 4,~~942~~911,~~609~~807.6303 24,~~713~~559.0504 0.00 0.00 A-4 10,000,000.00 6.00000% 10,000,000.00 50,000.00 0.00 0.00 A-5 0.00 6.00000% 4342,~~051~~568,~~195~~188.3592 ~~215~~212,~~255~~840.9894 0.00 0.00 A-6 25,000,000.00 6.00000% 2220,~~209~~085,~~342~~093.1246 ~~111~~100,~~046~~425.7147 0.00 0.00 A-7 30,000,000.00 6.00000% 2726,~~918~~072,~~970~~583.1485 ~~139~~130,~~594~~362.8592 0.00 0.00 A-PO 729,854.53 0.00000% ~~708~~704,~~262~~699.0235 0.00 0.00 0.00 A-R 50.00 6.00000% 0.00 0.00 0.00 0.00 A-LR 50.00 6.00000% 0.00 0.00 0.00 0.00 B-1 1,650,000.00 6.00000% 1,~~639~~633,~~039~~519.0469 8,~~195~~167.2060 0.00 0.00 B-2 550,000.00 6.00000% ~~546~~544,~~346~~506.3556 2,~~731~~722.7353 0.00 0.00 B-3 441,000.00 6.00000% ~~438~~436,~~070~~595.4326 2,~~190~~182.3598 0.00 0.00 B-4 220,000.00 6.00000% ~~218~~217,~~538~~802.5462 1,~~092~~089.6901 0.00 0.00 B-5 110,000.00 6.00000% ~~109~~108,~~269~~901.2731 ~~546~~544.3551 0.00 0.00 B-6 220,244.37 6.00000% 218,~~781~~044.2955 1,~~093~~090.9122 0.00 0.00 Totals 220,067,198.90 1,~~059~~032,~~973~~039.7967 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-1 113.0762 0.00 ~~448~~443,~~937~~832.5613 0.00 ~~129~~128,~~903~~136,~~147~~864.7760 A-2 10.3544 0.00 54,~~563~~218.0026 0.00 12,~~275~~194,~~932~~149.4840 A-3 0.6120 0.00 24,~~712~~558.4483 0.00 4,~~911~~879,~~807~~617.0321 A-4 10.2341 0.00 49,~~998~~999.7759 0.00 10,000,000.00 A-5 51.3174 0.00 ~~215~~212,~~250~~839.6721 0.00 4241,~~568~~999,~~188~~324.9256 A-6 20.7482 0.00 ~~111~~100,~~043~~424.9765 0.00 2017,~~085~~616,~~093~~532.4611 A-7 31.4406 0.00 ~~139~~130,~~591~~361.4186 0.00 2623,~~072~~635,~~583~~173.8538 A-PO 0.00 0.00 0.00 0.00 ~~704~~701,~~699~~658.3570 A-R 0.00 0.00 0.00 0.00 0.00 A-LR 0.00 0.00 0.00 0.00 0.00 B-1 0.2007 0.00 8,~~194~~167.9953 0.00 1,~~633~~628,~~519~~040.6983 B-2 0.0702 0.00 2,~~731~~722.6651 0.00 ~~544~~542,~~506~~680.5628 B-3 0.0502 0.00 2,~~190~~182.3096 0.00 ~~436~~435,~~595~~130.2691 B-4 0.0301 0.00 1,~~092~~089.6700 0.00 217,~~802~~072.6211 B-5 0.0100 0.00 ~~546~~544.3350 0.00 108,~~901~~536.3106 B-6 0.0301 0.00 1,~~093~~090.8821 0.00 ~~218~~217,~~044~~313.5523 Totals 268.1442 0.00 1,~~059~~032,~~947~~031.6524 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-1 133,646,000.00 4.10000% ~~983~~971.~~19140939~~99428168 3.~~35923731~~32098043 0.00000000 0.00000000 A-2 12,500,000.00 5.30000% ~~988~~982.~~33528880~~07459840 4.~~36514720~~33749600 0.00000000 0.00000000 A-3 5,000,000.00 6.00000% ~~988~~982.~~52192600~~36140600 4.~~94261000~~91180800 0.00000000 0.00000000 A-4 10,000,000.00 6.00000% 1000.00000000 5.00000000 0.00000000 0.00000000 A-5 0.00 6.00000% ~~983~~972.~~36275629~~33006532 4.~~91681386~~86165022 0.00000000 0.00000000 A-6 25,000,000.00 6.00000% ~~888~~803.~~37368480~~40373840 4.~~44186840~~01701880 0.00000000 0.00000000 A-7 30,000,000.00 6.00000% ~~930~~869.~~63233800~~08612833 4.~~65316167~~34543067 0.00000000 0.00000000 A-PO 729,854.53 0.00000% ~~970~~965.~~41532372~~53398113 0.00000000 0.00000000 0.00000000 A-R 50.00 6.00000% 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 50.00 6.00000% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 1,650,000.00 6.00000% ~~993~~990.~~35699394~~01193333 4.~~96678788~~95006061 0.00000000 0.00000000 B-2 550,000.00 6.00000% ~~993~~990.~~35700000~~01192727 4.~~96678182~~95005455 0.00000000 0.00000000 B-3 441,000.00 6.00000% ~~993~~990.~~35698413~~01192744 4.~~96678005~~95006803 0.00000000 0.00000000 B-4 220,000.00 6.00000% ~~993~~990.~~35700000~~01190909 4.~~96677273~~95004545 0.00000000 0.00000000 B-5 110,000.00 6.00000% ~~993~~990.~~35700000~~01190909 4.~~96681818~~95009091 0.00000000 0.00000000 B-6 220,244.37 6.00000% ~~993~~990.~~35701521~~01191268 4.~~96680119~~95004708 0.00000000 0.00000000 (5) All classes are per $1000 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.~~00008283~~00002709 0.00000000 3.~~35915448~~32095334 0.00000000 ~~971~~958.~~99428168~~77814974 A-2 0.~~00010800~~00003520 0.00000000 4.~~36504000~~33746080 0.00000000 ~~982~~975.~~07459840~~53195200 A-3 0.~~00012200~~00004000 0.00000000 4.~~94248800~~91176600 0.00000000 ~~982~~975.~~36140600~~92344200 A-4 0.~~00012300~~00004100 0.00000000 4.~~99987700~~99995900 0.00000000 1000.00000000 A-5 0.~~00012129~~00003974 0.00000000 4.~~91669257~~86161071 0.00000000 ~~972~~959.~~33006532~~33623274 A-6 0.~~00010960~~00003280 0.00000000 4.~~44175880~~01698600 0.00000000 ~~803~~704.~~40373840~~66128440 A-7 0.~~00011467~~00003533 0.00000000 4.~~65304700~~34539533 0.00000000 ~~869~~787.~~08612833~~83911267 A-PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~965~~961.~~53398113~~36787697 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.~~00012121~~00004242 0.00000000 4.~~96666061~~95001818 0.00000000 ~~990~~986.~~01193333~~69141212 B-2 0.~~00012727~~00003636 0.00000000 4.~~96665455~~95001818 0.00000000 ~~990~~986.~~01192727~~69141818 B-3 0.~~00011338~~00004535 0.00000000 4.~~96666667~~95002268 0.00000000 ~~990~~986.~~01192744~~69140590 B-4 0.~~00013636~~00004545 0.00000000 4.~~96668182~~95000000 0.00000000 ~~990~~986.~~01190909~~69140909 B-5 0.~~00009091~~00000000 0.00000000 4.~~96663636~~95000000 0.00000000 ~~990~~986.~~01190909~~69145455 B-6 0.~~00013621~~00004540 0.00000000 4.~~96666498~~95000167 0.00000000 ~~990~~986.~~01191268~~69141917 (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 Component Statement Component Beginning Ending Beginning Ending Ending Pass-Through Notional Notional Component Component Component Class Rate Balance Balance Balance Balance Percentage A-1A 4.10000% 0.00 0.00 ~~122,027,100.51~~ 121,266,621.34 98120,471,893.~~23614055~~40 97.59234422% A-1B 4.10000% 0.00 0.00 ~~9,372,498.59~~ 8,636,526.43 847,664,971.~~65522868~~21 75.13204480%

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 026,652.0035 Deposits Payments of Interest and Principal 67,~~768~~865,~~093~~662.8864 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Losses 0.00 Prepayment Penalties 0.00 Total Deposits 67,~~768~~865,~~093~~662.8864 Withdrawals Reimbursement for Servicer Advances ~~48,547~~0.7100 Payment of Service Fee 4244,~~561~~019.0832 Payment of Interest and Principal 67,~~650~~831,~~332~~896.7437 Total Withdrawals (Pool Distribution Amount) 67,~~741~~875,~~441~~915.5369 Ending Balance 2616,~~652~~399.3530

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 42,~~788~~071.3028 Servicing Fee Support 42,~~762~~062.1686 Non-Supported Prepayment/Curtailment Interest Shortfall 268.1442

SERVICING FEES Gross Servicing Fee 4443,~~310~~148.1511 Master Servicing Fee 32,~~013~~934.0907 Supported Prepayment/Curtailment Interest Shortfall 42,~~762~~062.1686 Net Servicing Fee 4244,~~561~~019.0832

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 10 0 0 0 10 ~~645,796~~0.8900 0.00 0.00 0.00 ~~645,796~~0.8900 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 10 0 0 0 10 ~~645,796~~0.8900 0.00 0.00 0.00 ~~645,796~~0.8900 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.~~223214~~000000% 0.000000% 0.000000% 0.000000% 0.~~223214~~000000% 0.~~308122~~000000% 0.000000% 0.000000% 0.000000% 0.~~308122~~000000% 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 0.~~223214~~000000% 0.000000% 0.000000% 0.000000% 0.~~223214~~000000% 0.~~308122~~000000% 0.000000% 0.000000% 0.000000% 0.~~308122~~000000%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 7179,~~070~~956.9085

SUBORDINATION LEVEL/CREDIT ENHANCEMENT CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 3,191,244.37 1.45012268% 3,~~159~~148,~~369~~773.9942 1.~~52543567~~57192846% 98.~~469356~~422546% 100.000000% Class B-1 1,541,244.37 0.70035170% 1,~~525~~520,~~850~~732.3059 0.~~73672488~~75917906% 0.~~791404~~815606% 0.000000% Class B-2 991,244.37 0.45042804% ~~981~~978,~~343~~052.7431 0.~~47382128~~48826259% 0.~~263801~~271869% 0.000000% Class B-3 550,244.37 0.25003470% ~~544~~542,~~748~~921.4840 0.~~26302040~~27103684% 0.~~211521~~217989% 0.000000% Class B-4 330,244.37 0.15006524% ~~326~~325,~~945~~849.8629 0.~~15785896~~16267025% 0.~~105520~~108748% 0.000000% Class B-5 220,244.37 0.10008051% ~~218~~217,~~044~~313.5523 0.~~10527825~~10848696% 0.~~052760~~054374% 0.000000% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~105638~~108868% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description Fixed 15 Year Weighted Average Gross Coupon 6.~~513842~~508590% Weighted Average Pass-Through Rate 6.000000% Weighted Average Maturity(Stepdown Calculation ) ~~176~~175 Beginning Scheduled Collateral Loan Count ~~456~~448 Number Of Loans Paid In Full 812 Ending Scheduled Collateral Loan Count ~~448~~436 Beginning Scheduled Collateral Balance ~~212~~207,~~703~~112,~~019~~633.0394 Ending Scheduled Collateral Balance ~~207~~200,~~112~~312,~~633~~768.9482 Ending Actual Collateral Balance at 3130-~~Aug~~Sep-2002 ~~209~~205,~~591~~492,~~513~~894.9777 Ending Scheduled Balance For Wells Fargo Serviced ~~206~~199,~~268~~471,~~454~~565.8941 Ending Scheduled Balance For Other Servicers ~~844~~841,~~179~~203.0541 Monthly P &I Constant 1,~~839~~798,~~519~~980.9994 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 67,~~620~~802,~~271~~470.0972 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~163~~156,~~092~~468,~~377~~880.0983 Ending scheduled Balance For discounted Loans 4443,~~020~~843,~~256~~887.8599 Scheduled Principal ~~716~~694,~~396~~833.3629 Unscheduled Principal 46,~~873~~105,~~988~~031.7383 Unpaid Principal Balance Of Outstanding Mortgage Loans With Original LTV: Less Than Or Equal To 80% ~~203~~196,~~598~~814,~~322~~311.7967 Greater Than 80%, less than or equal to 85% ~~844~~840,~~074~~598.8935 Greater than 85%, less than or equal to 95% 2,~~660~~653,~~880~~404.0637 Greater than 95% 0.00

Filing Compare · WELLS FARGO MORTGAGE BACKED SECURITIES 2002-13 TRUST