8-K 1 wfm0300f.txt AUGUST 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): August 25, 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 August 25, 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 August 25, 2003 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. 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: 8/28/03 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 August 25, 2003 distribution. EX-99.1

Wells Fargo Asset Securities Corporation Mortgage Pass-Through Certificates Record Date: 67/3031/03 Distribution Date: 78/25/03 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.~~96216~~96238% ~~280~~265,~~673~~320,~~486~~137.2296 1,~~160~~097,~~567~~182.3865 1522,~~353~~599,~~348~~360.2712 A-R 94979QAB8 SEQ 4.~~96238~~95905% 0.00 0.00 0.00 B-1 94979QAC6 SUB 4.~~96216~~96238% 2,~~741~~738,~~899~~931.0626 11,~~337~~326.5835 2,~~967~~907.8002 B-2 94979QAD4 SUB 4.~~96216~~96238% 2,~~308~~305,~~389~~890.3476 9,~~545~~535.0559 2,~~498~~447.5840 B-3 94979QAE2 SUB 4.~~96216~~96238% ~~721~~720,~~184~~403.3878 2,~~982~~979.0510 ~~780~~764.6061 B-4 94979QAF9 SUB 4.~~96216~~96238% ~~721~~720,~~184~~403.3878 2,~~982~~979.0510 ~~780~~764.6061 B-5 94979QAG7 SUB 4.~~96216~~96238% 288,~~673~~361.5307 1,~~193~~192.6546 ~~312~~306.4606 B-6 94979QAH5 SUB 4.~~96216~~96238% 433,~~491~~022.6747 1,~~792~~790.4668 ~~469~~459.2160 Totals ~~287~~272,~~888~~527,~~308~~151.5808 1,~~190~~126,~~400~~985.2293 1522,~~361~~607,~~157~~009.5242

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 ~~265~~242,~~320~~720,~~137~~777.9683 1623,~~513~~696,~~915~~542.6577 0.00 A-R 0.00 0.00 0.00 0.00 B-1 0.00 2,~~738~~736,~~931~~024.2624 14,~~305~~233.3837 0.00 B-2 0.00 2,~~305~~303,~~890~~443.7636 1211,~~043~~982.6399 0.00 B-3 0.00 ~~720~~719,~~403~~639.7816 3,~~762~~743.6571 0.00 B-4 0.00 ~~720~~719,~~403~~639.7816 3,~~762~~743.6571 0.00 B-5 0.00 288,~~361~~055.0701 1,~~506~~498.1152 0.00 B-6 0.00 ~~433~~432,~~022~~562.4787 2,~~261~~250.6728 0.00 Totals 0.00 ~~272~~249,~~527~~920,~~151~~141.0863 1623,~~551~~733,~~557~~995.7435 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-1 281,672,000.00 ~~280~~265,~~673~~320,~~486~~137.2296 ~~303~~281,~~797~~602.9081 1522,~~049~~317,~~550~~757.3731 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,~~741~~738,~~899~~931.0626 2,~~967~~907.8002 0.00 0.00 0.00 B-2 2,311,000.00 2,~~308~~305,~~389~~890.3476 2,~~498~~447.5840 0.00 0.00 0.00 B-3 722,000.00 ~~721~~720,~~184~~403.3878 ~~780~~764.6061 0.00 0.00 0.00 B-4 722,000.00 ~~721~~720,~~184~~403.3878 ~~780~~764.6061 0.00 0.00 0.00 B-5 289,000.00 288,~~673~~361.5307 ~~312~~306.4606 0.00 0.00 0.00 B-6 433,981.93 433,~~491~~022.6747 ~~469~~459.2160 0.00 0.00 0.00 Totals 288,895,081.93 ~~287~~272,~~888~~527,~~308~~151.5808 ~~311~~289,~~607~~252.1511 1522,~~049~~317,~~550~~757.3731 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 1522,~~353~~599,~~348~~360.2712 ~~265~~242,~~320~~720,~~137~~777.9683 0.~~94194715~~86171426 1522,~~353~~599,~~348~~360.2712 A-R 0.00 0.00 0.00000000 0.00 B-1 2,~~967~~907.8002 2,~~738~~736,~~931~~024.2624 0.~~99778917~~99673014 2,~~967~~907.8002 B-2 2,~~498~~447.5840 2,~~305~~303,~~890~~443.7636 0.~~99778916~~99673014 2,~~498~~447.5840 B-3 ~~780~~764.6061 ~~720~~719,~~403~~639.7816 0.~~99778917~~99673014 ~~780~~764.6061 B-4 ~~780~~764.6061 ~~720~~719,~~403~~639.7816 0.~~99778917~~99673014 ~~780~~764.6061 B-5 ~~312~~306.4606 288,~~361~~055.0701 0.~~99778917~~99673014 ~~312~~306.4606 B-6 ~~469~~459.2160 ~~433~~432,~~022~~562.4787 0.~~99778917~~99673014 ~~469~~459.2160 Totals 1522,~~361~~607,~~157~~009.5242 ~~272~~249,~~527~~920,~~151~~141.0863 0.~~94334299~~86508964 1522,~~361~~607,~~157~~009.5242

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 ~~996~~941.~~45504779~~94715115 10.~~07855200~~99975436 5379.~~42934466~~23314106 0.00000000 A-R 100.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 2,745,000.00 ~~998~~997.~~87033151~~78916576 1.~~08116576~~05902368 0.00000000 0.00000000 B-2 2,311,000.00 ~~998~~997.~~87033319~~78916486 1.~~08116833~~05902207 0.00000000 0.00000000 B-3 722,000.00 ~~998~~997.~~87033241~~78916898 1.~~08116343~~05901662 0.00000000 0.00000000 B-4 722,000.00 ~~998~~997.~~87033241~~78916898 1.~~08116343~~05901662 0.00000000 0.00000000 B-5 289,000.00 ~~998~~997.~~87034602~~78916955 1.~~08117647~~05903114 0.00000000 0.00000000 B-6 433,981.93 ~~998~~997.~~87032163~~78917062 1.~~08117405~~05903027 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 5480.~~50789667~~23289542 ~~941~~861.~~94715115~~71425569 0.~~94194715~~86171426 5480.~~50789667~~23289542 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 1.~~08116576~~05902368 ~~997~~996.~~78916576~~73014208 0.~~99778917~~99673014 1.~~08116576~~05902368 B-2 0.00000000 1.~~08116833~~05902207 ~~997~~996.~~78916486~~73014280 0.~~99778916~~99673014 1.~~08116833~~05902207 B-3 0.00000000 1.~~08116343~~05901662 ~~997~~996.~~78916898~~73013850 0.~~99778917~~99673014 1.~~08116343~~05901662 B-4 0.00000000 1.~~08116343~~05901662 ~~997~~996.~~78916898~~73013850 0.~~99778917~~99673014 1.~~08116343~~05901662 B-5 0.00000000 1.~~08117647~~05903114 ~~997~~996.~~78916955~~73013841 0.~~99778917~~99673014 1.~~08117647~~05903114 B-6 0.00000000 1.~~08117405~~05903027 ~~997~~996.~~78917062~~73014035 0.~~99778917~~99673014 1.~~08117405~~05903027 (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-1 281,672,000.00 4.~~96216~~96238% ~~280~~265,~~673~~320,~~486~~137.2296 1,~~160~~097,~~622~~182.6265 0.00 0.00 A-R 100.00 4.~~96238~~95905% 0.00 0.00 0.00 0.00 B-1 2,745,000.00 4.~~96216~~96238% 2,~~741~~738,~~899~~931.0626 11,~~338~~326.1235 0.00 0.00 B-2 2,311,000.00 4.~~96216~~96238% 2,~~308~~305,~~389~~890.3476 9,~~545~~535.5059 0.00 0.00 B-3 722,000.00 4.~~96216~~96238% ~~721~~720,~~184~~403.3878 2,~~982~~979.1910 0.00 0.00 B-4 722,000.00 4.~~96216~~96238% ~~721~~720,~~184~~403.3878 2,~~982~~979.1910 0.00 0.00 B-5 289,000.00 4.~~96216~~96238% 288,~~673~~361.5307 1,~~193~~192.7046 0.00 0.00 B-6 433,981.93 4.~~96216~~96238% 433,~~491~~022.6747 1,~~792~~790.5568 0.00 0.00 Totals 288,895,081.93 1,~~190~~126,~~456~~985.8793 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-1 550.2400 0.00 1,~~160~~097,~~567~~182.3865 0.00 ~~265~~242,~~320~~720,~~137~~777.9683 A-R 0.00 0.00 0.00 0.00 0.00 B-1 0.5400 0.00 11,~~337~~326.5835 0.00 2,~~738~~736,~~931~~024.2624 B-2 0.4500 0.00 9,~~545~~535.0559 0.00 2,~~305~~303,~~890~~443.7636 B-3 0.1400 0.00 2,~~982~~979.0510 0.00 ~~720~~719,~~403~~639.7816 B-4 0.1400 0.00 2,~~982~~979.0510 0.00 ~~720~~719,~~403~~639.7816 B-5 0.0600 0.00 1,~~193~~192.6546 0.00 288,~~361~~055.0701 B-6 0.0900 0.00 1,~~792~~790.4668 0.00 ~~433~~432,~~022~~562.4787 Totals 560.6600 0.00 1,~~190~~126,~~400~~985.2293 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-1 281,672,000.00 4.~~96216~~96238% ~~996~~941.~~45504779~~94715115 43.~~12047566~~89524926 0.00000000 0.00000000 A-R 100.00 4.~~96238~~95905% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 2,745,000.00 4.~~96216~~96238% ~~998~~997.~~87033151~~78916576 4.~~13046266~~12617486 0.00000000 0.00000000 B-2 2,311,000.00 4.~~96216~~96238% ~~998~~997.~~87033319~~78916486 4.~~13046300~~12617482 0.00000000 0.00000000 B-3 722,000.00 4.~~96216~~96238% ~~998~~997.~~87033241~~78916898 4.~~13045706~~12617729 0.00000000 0.00000000 B-4 722,000.00 4.~~96216~~96238% ~~998~~997.~~87033241~~78916898 4.~~13045706~~12617729 0.00000000 0.00000000 B-5 289,000.00 4.~~96216~~96238% ~~998~~997.~~87034602~~78916955 4.~~13044983~~12615917 0.00000000 0.00000000 B-6 433,981.93 4.~~96216~~96238% ~~998~~997.~~87032163~~78917062 4.~~13047152~~12616258 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.~~00019611~~00000000 0.00000000 43.~~12027955~~89524926 0.00000000 ~~941~~861.~~94715115~~71425569 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.~~00019672~~00000000 0.00000000 4.~~13026594~~12617486 0.00000000 ~~997~~996.~~78916576~~73014208 B-2 0.~~00019472~~00000000 0.00000000 4.~~13026828~~12617482 0.00000000 ~~997~~996.~~78916486~~73014280 B-3 0.~~00019391~~00000000 0.00000000 4.~~13026316~~12617729 0.00000000 ~~997~~996.~~78916898~~73013850 B-4 0.~~00019391~~00000000 0.00000000 4.~~13026316~~12617729 0.00000000 ~~997~~996.~~78916898~~73013850 B-5 0.~~00020761~~00000000 0.00000000 4.~~13027682~~12615917 0.00000000 ~~997~~996.~~78916955~~73013841 B-6 0.~~00020738~~00000000 0.00000000 4.~~13026413~~12616258 0.00000000 ~~997~~996.~~78917062~~73014035 (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 1914,~~854~~583.2228 Deposits Payments of Interest and Principal 1623,~~630~~700,~~095~~509.5479 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 093,060.0044 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 1623,~~630~~793,~~095~~570.5423 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 8374,~~808~~158.7516 Payment of Interest and Principal 1623,~~551~~733,~~557~~995.7335 Total Withdrawals (Pool Distribution Amount) 1623,~~635~~808,~~366~~153.4851 Ending Balance ~~14,583~~0.2800

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 813,~~607~~276.6286 Servicing Fee Support 813,~~550~~276.9686 Non-Supported Prepayment/Curtailment Interest Shortfall 560.6600

SERVICING FEES Gross Servicing Fee 8985,~~960~~163.7598 Master Servicing Fee 2,~~398~~271.9504 Supported Prepayment/Curtailment Interest Shortfall 813,~~550~~276.9686 Net Servicing Fee 8374,~~808~~158.7516

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 32 0 0 0 32 1,~~615~~071,~~000~~111.0019 0.00 0.00 0.00 1,~~615~~071,~~000~~111.0019 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 32 0 0 0 32 1,~~615~~071,~~000~~111.0019 0.00 0.00 0.00 1,~~615~~071,~~000~~111.0019 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.~~582524~~420168% 0.000000% 0.000000% 0.000000% 0.~~582524~~420168% 0.~~578294~~415539% 0.000000% 0.000000% 0.000000% 0.~~578294~~415539% 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.~~582524~~420168% 0.000000% 0.000000% 0.000000% 0.~~582524~~420168% 0.~~578294~~415539% 0.000000% 0.000000% 0.000000% 0.~~578294~~415539%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 72168,~~943~~888.2040

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 7,222,981.93 2.50020938% 7,~~207~~199,~~013~~363.1280 2.~~64451197~~88066570% 97.~~355488~~119334% 100.000000% Class B-1 4,477,981.93 1.55003744% 4,~~468~~463,~~081~~339.8656 1.~~63949971~~78590630% 1.~~005012~~094759% 0.000000% Class B-2 2,166,981.93 0.75009305% 2,~~162~~159,~~191~~896.1020 0.~~79338557~~86423455% 0.~~846114~~921672% 0.000000% Class B-3 1,444,981.93 0.50017533% 1,~~441~~440,~~787~~257.3204 0.~~52904355~~57628690% 0.~~264342~~287948% 0.000000% Class B-4 722,981.93 0.25025761% ~~721~~720,~~383~~617.5488 0.~~26470153~~28833926% 0.~~264342~~287948% 0.000000% Class B-5 433,981.93 0.15022129% ~~433~~432,~~022~~562.4787 0.~~15889150~~17308044% 0.~~105810~~115259% 0.000000% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~158891~~173080% 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.~~347165~~347432% Weighted Average Net Coupon 4.~~962165~~962432% Weighted Average Pass-Through Rate 4.~~962165~~962432% Weighted Average Maturity(Stepdown Calculation ) ~~357~~356 Beginning Scheduled Collateral Loan Count ~~540~~515 Number Of Loans Paid In Full 2539 Ending Scheduled Collateral Loan Count ~~515~~476 Beginning Scheduled Collateral Balance ~~287~~272,~~888~~527,~~308~~151.5807 Ending Scheduled Collateral Balance ~~272~~249,~~527~~920,~~151~~141.0764 Ending Actual Collateral Balance at 3031-~~Jun~~Jul-2003 ~~279~~257,~~269~~764,~~841~~010.4114 Monthly P &I Constant 1,~~611~~529,~~089~~068.5246 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 1623,~~513~~696,~~970~~542.8977 Ending Scheduled Balance for Premium Loans ~~272~~249,~~527~~920,~~151~~141.0764 Scheduled Principal ~~311~~289,~~607~~252.1412 Unscheduled Principal 1522,~~049~~317,~~550~~757.3731 Unpaid Principal Balance Of Outstanding Mortgage Loans With Or Less Than Or Equal To 80% ~~272~~249,~~524~~938,~~376~~613.0753 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