8-K 1 wfm0300f.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 WELLS FARGO ASSET SECURITIES CORPORATION Mortgage Pass-Through Certificates, Series 2003-F Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-98129-20 Pending Pooling and Servicing Agreement) (Commission IRS EIN (State or other File Number) 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 WELLS FARGO ASSET SECURITIES CORPORATION, Mortgage Pass-Through Certificates, Series 2003-F 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-F 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. WELLS FARGO ASSET SECURITIES CORPORATION Mortgage Pass-Through Certificates, Series 2003-F 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: 10/28/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-F Trust, relating to the October 27, 2003 distribution. EX-99.1

Wells Fargo Asset Securities Corporation Mortgage Pass-Through Certificates Record Date: 89/3130/03 Distribution Date: 910/2527/03 WFMBS Series: 2003-F 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 A-1 94979QAA0 SEQ 4.~~95905~~95857% ~~242~~229,~~720~~788,~~777~~189.8392 1949,~~003,020~~498.7301 125,~~932~~828,~~587~~725.9147 A-R 94979QAB8 SEQ 4.~~95857~~95394% 0.00 0.00 0.00 B-1 94979QAC6 SUB 4.~~95905~~95857% 2,~~736~~733,~~024~~000.2418 11,~~306~~292.3691 3,~~024~~112.0665 B-2 94979QAD4 SUB 4.~~95905~~95857% 2,~~303~~300,~~443~~897.3642 9,~~518~~507.7644 2,~~545~~620.9453 B-3 94979QAE2 SUB 4.~~95905~~95857% ~~719~~718,~~639~~843.1676 2,~~973~~970.8430 ~~795~~818.4070 B-4 94979QAF9 SUB 4.~~95905~~95857% ~~719~~718,~~639~~843.1676 2,~~973~~970.8430 ~~795~~818.4070 B-5 94979QAG7 SUB 4.~~95905~~95857% ~~288~~287,~~055~~736.0163 1,~~190~~188.3694 ~~318~~327.3871 B-6 94979QAH5 SUB 4.~~95905~~95857% 432,~~562~~084.8777 1,~~787~~785.5340 ~~478~~492.1011 Totals ~~249~~236,~~920~~979,~~141~~596.6344 1979,~~032,771~~213.4230 125,~~940~~836,~~545~~915.1987

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 ~~229~~223,~~788~~959,~~189~~464.9245 136,~~935~~778,~~608~~223.6448 0.00 A-R 0.00 0.00 0.00 0.00 B-1 0.00 2,~~733~~729,~~000~~887.1852 14,~~330~~405.4256 0.00 B-2 0.00 2,~~300~~298,~~897~~276.4289 12,~~064~~127.7097 0.00 B-3 0.00 718,~~843~~025.7606 3,~~769~~789.2400 0.00 B-4 0.00 718,~~843~~025.7606 3,~~769~~789.2400 0.00 B-5 0.00 287,~~736~~408.6392 1,~~508~~516.7465 0.00 B-6 0.00 ~~432~~431,~~084~~592.7766 2,~~265~~277.6351 0.00 Totals 0.00 ~~236~~231,~~979~~142,~~596~~680.4456 136,~~973~~816,~~316~~129.6117 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-1 281,672,000.00 ~~242~~229,~~720~~788,~~777~~189.8392 ~~268~~261,~~273~~709.54 12 5,~~664~~567,~~314~~016.3735 0.00 0.00 A-R 100.00 0.00 0.00 0.00 0.00 0.00 B-1 2,745,000.00 2,~~736~~733,~~024~~000.2418 3,~~024~~112.0665 0.00 0.00 0.00 B-2 2,311,000.00 2,~~303~~300,~~443~~897.3642 2,~~545~~620.9453 0.00 0.00 0.00 B-3 722,000.00 ~~719~~718,~~639~~843.1676 ~~795~~818.4070 0.00 0.00 0.00 B-4 722,000.00 ~~719~~718,~~639~~843.1676 ~~795~~818.4070 0.00 0.00 0.00 B-5 289,000.00 ~~288~~287,~~055~~736.0163 ~~318~~327.3871 0.00 0.00 0.00 B-6 433,981.93 432,~~562~~084.8777 ~~478~~492.1011 0.00 0.00 0.00 Totals 288,895,081.93 ~~249~~236,~~920~~979,~~141~~596.6344 ~~276~~269,~~230~~899.8252 125,~~664~~567,~~314~~016.3735 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-1 125,~~932~~828,~~587~~725.9147 ~~229~~223,~~788~~959,~~189~~464.9245 0.~~81580061~~79510730 125,~~932~~828,~~587~~725.9147 A-R 0.00 0.00 0.00000000 0.00 B-1 3,~~024~~112.0665 2,~~733~~729,~~000~~887.1852 0.~~99562848~~99449454 3,~~024~~112.0665 B-2 2,~~545~~620.9453 2,~~300~~298,~~897~~276.4289 0.~~99562848~~99449454 2,~~545~~620.9453 B-3 ~~795~~818.4070 718,~~843~~025.7606 0.~~99562848~~99449454 ~~795~~818.4070 B-4 ~~795~~818.4070 718,~~843~~025.7606 0.~~99562848~~99449454 ~~795~~818.4070 B-5 ~~318~~327.3871 287,~~736~~408.6392 0.~~99562848~~99449453 ~~318~~327.3871 B-6 ~~478~~492.1011 ~~432~~431,~~084~~592.7766 0.~~99562848~~99449454 ~~478~~492.1011 Totals 125,~~940~~836,~~545~~915.1987 ~~236~~231,~~979~~142,~~596~~680.4456 0.~~82029640~~80009213 125,~~940~~836,~~545~~915.1987

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 281,672,000.00 ~~861~~815.~~71425569~~80061178 0.~~95243240~~92912721 4419.~~96121152~~76418086 0.00000000 A-R 100.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 2,745,000.00 ~~996~~995.~~73014208~~62848087 1.~~10166120~~13393443 0.00000000 0.00000000 B-2 2,311,000.00 ~~996~~995.~~73014280~~62848118 1.~~10166162~~13393769 0.00000000 0.00000000 B-3 722,000.00 ~~996~~995.~~73013850~~62847645 1.~~10166205~~13393352 0.00000000 0.00000000 B-4 722,000.00 ~~996~~995.~~73013850~~62847645 1.~~10166205~~13393352 0.00000000 0.00000000 B-5 289,000.00 ~~996~~995.~~73013841~~62847751 1.~~10166090~~13394464 0.00000000 0.00000000 B-6 433,981.93 ~~996~~995.~~73014035~~62848158 1.~~10165877~~13394122 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 4520.~~91364392~~69330807 ~~815~~795.~~80061178~~10730371 0.~~81580061~~79510730 4520.~~91364392~~69330807 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 1.~~10166120~~13393443 ~~995~~994.~~62848087~~49454281 0.~~99562848~~99449454 1.~~10166120~~13393443 B-2 0.00000000 1.~~10166162~~13393769 ~~995~~994.~~62848118~~49454349 0.~~99562848~~99449454 1.~~10166162~~13393769 B-3 0.00000000 1.~~10166205~~13393352 ~~995~~994.~~62847645~~49454294 0.~~99562848~~99449454 1.~~10166205~~13393352 B-4 0.00000000 1.~~10166205~~13393352 ~~995~~994.~~62847645~~49454294 0.~~99562848~~99449454 1.~~10166205~~13393352 B-5 0.00000000 1.~~10166090~~13394464 ~~995~~994.~~62847751~~49453287 0.~~99562848~~99449453 1.~~10166090~~13394464 B-6 0.00000000 1.~~10165877~~13394122 ~~995~~994.~~62848158~~49454036 0.~~99562848~~99449454 1.~~10165877~~13394122 (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-1 281,672,000.00 4.~~95905~~95857% ~~242~~229,~~720~~788,~~777~~189.8392 1949,~~003,054~~517.4555 0.00 0.00 A-R 100.00 4.~~95857~~95394% 0.00 0.00 0.00 0.00 B-1 2,745,000.00 4.~~95905~~95857% 2,~~736~~733,~~024~~000.2418 11,~~306~~293.7415 0.00 0.00 B-2 2,311,000.00 4.~~95905~~95857% 2,~~303~~300,~~443~~897.3642 9,~~519~~507.0864 0.00 0.00 B-3 722,000.00 4.~~95905~~95857% ~~719~~718,~~639~~843.1676 2,~~973~~970.9436 0.00 0.00 B-4 722,000.00 4.~~95905~~95857% ~~719~~718,~~639~~843.1676 2,~~973~~970.9436 0.00 0.00 B-5 289,000.00 4.~~95905~~95857% ~~288~~287,~~055~~736.0163 1,~~190~~188.4097 0.00 0.00 B-6 433,981.93 4.~~95905~~95857% 432,~~562~~084.8777 1,~~787~~785.5944 0.00 0.00 Totals 288,895,081.93 1979,~~032,806~~233.1447 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 3319.7253 0.00 1949,~~003,020~~498.7301 0.00 ~~229~~223,~~788~~959,~~189~~464.9245 A-R 0.00 0.00 0.00 0.00 0.00 B-1 0.3823 0.00 11,~~306~~292.3691 0.00 2,~~733~~729,~~000~~887.1852 B-2 0.3220 0.00 9,~~518~~507.7644 0.00 2,~~300~~298,~~897~~276.4289 B-3 0.1006 0.00 2,~~973~~970.8430 0.00 718,~~843~~025.7606 B-4 0.1006 0.00 2,~~973~~970.8430 0.00 718,~~843~~025.7606 B-5 0.0402 0.00 1,~~190~~188.3694 0.00 287,~~736~~408.6392 B-6 0.0604 0.00 1,~~787~~785.5340 0.00 ~~432~~431,~~084~~592.7766 Totals 3420.7214 0.00 1979,~~032,771~~213.4230 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-1 281,672,000.00 4.~~95905~~95857% ~~861~~815.~~71425569~~80061178 3.~~56107263~~37100440 0.00000000 0.00000000 A-R 100.00 4.~~95857~~95394% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 2,745,000.00 4.~~95905~~95857% ~~996~~995.~~73014208~~62848087 4.~~11903097~~11408015 0.00000000 0.00000000 B-2 2,311,000.00 4.~~95905~~95857% ~~996~~995.~~73014280~~62848118 4.~~11903072~~11408048 0.00000000 0.00000000 B-3 722,000.00 4.~~95905~~95857% ~~996~~995.~~73013850~~62847645 4.~~11903047~~11407202 0.00000000 0.00000000 B-4 722,000.00 4.~~95905~~95857% ~~996~~995.~~73013850~~62847645 4.~~11903047~~11407202 0.00000000 0.00000000 B-5 289,000.00 4.~~95905~~95857% ~~996~~995.~~73013841~~62847751 4.~~11903114~~11408304 0.00000000 0.00000000 B-6 433,981.93 4.~~95905~~95857% ~~996~~995.~~73014035~~62848158 4.~~11904247~~11408834 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.~~00011971~~00006934 0.00000000 3.~~56095292~~37093502 0.00000000 ~~815~~795.~~80061178~~10730371 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.~~00013843~~00008379 0.00000000 4.~~11889253~~11399271 0.00000000 ~~995~~994.~~62848087~~49454281 B-2 0.~~00013847~~00008654 0.00000000 4.~~11889225~~11399394 0.00000000 ~~995~~994.~~62848118~~49454349 B-3 0.~~00013850~~00008310 0.00000000 4.~~11889197~~11398892 0.00000000 ~~995~~994.~~62847645~~49454294 B-4 0.~~00013850~~00008310 0.00000000 4.~~11889197~~11398892 0.00000000 ~~995~~994.~~62847645~~49454294 B-5 0.~~00013841~~00006920 0.00000000 4.~~11889273~~11397924 0.00000000 ~~995~~994.~~62847751~~49453287 B-6 0.~~00013825~~00009217 0.00000000 4.~~11890421~~11399617 0.00000000 ~~995~~994.~~62848158~~49454036 (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 025,492.0003 Deposits Payments of Interest and Principal 146,~~163~~925,~~167~~372.8699 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 146,~~163~~925,~~167~~372.8699 Withdrawals Reimbursement for Servicer Advances ~~93,060~~0.4400 Payment of Service Fee 71,~~298~~730.7782 Payment of Interest and Principal 136,~~973~~816,~~316~~129.6219 Total Withdrawals (Pool Distribution Amount) 146,~~137~~887,~~675~~860.8301 Ending Balance 2563,~~492~~005.0301

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 84,~~915~~318.9673 Servicing Fee Support 84,~~881~~298.2459 Non-Supported Prepayment/Curtailment Interest Shortfall 3420.7214

SERVICING FEES Gross Servicing Fee 7874,~~097~~054.4162 Master Servicing Fee 21,~~082~~974.6079 Supported Prepayment/Curtailment Interest Shortfall 84,~~881~~298.2459 Net Servicing Fee 71,~~298~~730.7782

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 4918,~~912~~460.5743

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 7,222,981.93 2.50020938% 7,~~191~~183,~~406~~216.5211 3.~~03461000~~10769785% 96.~~965390~~892302% 100.000000% Class B-1 4,477,981.93 1.55003744% 4,~~458~~453,~~406~~328.3459 1.~~88134608~~92665785% 1.~~153264~~181040% 0.000000% Class B-2 2,166,981.93 0.75009305% 2,~~157~~155,~~508~~051.9270 0.~~91041970~~93234694% 0.~~970926~~994311% 0.000000% Class B-3 1,444,981.93 0.50017533% 1,~~438~~437,~~665~~026.1664 0.~~60708398~~62170545% 0.~~303336~~310641% 0.000000% Class B-4 722,981.93 0.25025761% 719,~~821~~001.4058 0.~~30374826~~31106396% 0.~~303336~~310641% 0.000000% Class B-5 433,981.93 0.15022129% ~~432~~431,~~084~~592.7766 0.~~18232995~~18672132% 0.~~121418~~124343% 0.000000% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~182330~~186721% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description 10/1 CMT ARM Weighted Average Gross Coupon 5.~~344054~~343570% Weighted Average Net Coupon 4.~~959054~~958570% Weighted Average Pass-Through Rate 4.~~959054~~958570% Weighted Average Maturity(Stepdown Calculation ) ~~355~~354 Beginning Scheduled Collateral Loan Count ~~476~~454 Number Of Loans Paid In Full 2211 Ending Scheduled Collateral Loan Count ~~454~~443 Beginning Scheduled Collateral Balance ~~249~~236,~~920~~979,~~141~~596.6444 Ending Scheduled Collateral Balance ~~236~~231,~~979~~142,~~596~~680.4457 Ending Actual Collateral Balance at 3130-~~Aug~~Sep-2003 ~~243~~231,~~110~~043,~~485~~575.9750 Monthly P &I Constant 1,~~403~~332,~~673~~940.7473 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 136,~~935~~778,~~642~~243.3602 Ending Scheduled Balance for Premium Loans ~~236~~231,~~979~~142,~~596~~680.4457 Scheduled Principal ~~276~~269,~~230~~899.8352 Unscheduled Principal 125,~~664~~567,~~314~~016.3735 Unpaid Principal Balance Of Outstanding Mortgage Loans With Or Less Than Or Equal To 80% ~~236~~231,~~974~~129,~~137~~627.3875 Greater Than 80%, less than or equal to 85% 0.00 Greater than 85%, less than or equal to 95% 0.00 Greater than 95% 0.00

Filing Compare · WELLS FARGO MORTGAGE PASS THRU CER SER 2003-F