EXHIBIT 10.1 CONTACT: CUSTOMER SERVICES -- CTSLINK WELLS FARGO BANK MINNESOTA, N.A. SECURITIES ADMINISTRATION SERVICES 7485 NEW HORIZON WAY FREDERICK, MD 21703 WWW.CTSLINK.COM TELEPHONE: (301) 815-6600 FAX: (301) 315-6660 SMT SERIES 2004-4 RECORD DATE: AUGUST 31, 2004 DISTRIBUTION DATE: SEPTEMBER 20, 2004 CERTIFICATEHOLDER DISTRIBUTION SUMMARY Certificate Beginning Class Certificate Pass- Certificate Interest Class CUSIP Description Through Rate Balance Distribution - ----- ----- ------------ ----------------- ------------ ------------ A 81744FBF3 SEN 1.60813% 757,207,557.16 1,014,740.15 X-1 81744FBG1 SEN 0.80000% 0.00 458,547.27 X-2 81744FBH9 SEN 0.44149% 0.00 278,585.76 X-B 81744FBJ5 SEN 0.53086% 0.00 10,157.98 B-1 81744FBK2 SUB 2.10000% 14,612,000.00 25,571.00 B-2 81744FBL0 SUB 2.50000% 8,350,000.00 17,395.83 B-3 81744FBM8 SUB 2.77632% 4,175,000.00 9,659.27 B-4 81744FBN6 SUB 2.77632% 2,509,000.00 5,804.82 B-5 81744FBP1 SUB 2.77632% 2,088,000.00 4,830.79 B-6 81744FBQ9 SUB 2.77632% 3,757,983.00 8,694.46 A-R 81744FBR7 RES 2.68401% 0.00 0.00 -------------- ------------ Totals 792,699,540.16 1,833,987.33 -------------- ------------ Principal Current Ending Certificate Total Cumulative Class CUSIP Distribution Realized Loss Balance Distribution Realized Loss - ----- ----- ------------ ------------- ------------------ ------------ ------------ A 81744FBF3 13,704,784.45 0.00 743,502,772.71 14,719,524.60 0.00 X-1 81744FBG1 0.00 0.00 0.00 458,547.27 0.00 X-2 81744FBH9 0.00 0.00 0.00 278,585.76 0.00 X-B 81744FBJ5 0.00 0.00 0.00 10,157.98 0.00 B-1 81744FBK2 0.00 0.00 14,612,000.00 25,571.00 0.00 B-2 81744FBL0 0.00 0.00 8,350,000.00 17,395.83 0.00 B-3 81744FBM8 0.00 0.00 4,175,000.00 9,659.27 0.00 B-4 81744FBN6 0.00 0.00 2,509,000.00 5,804.82 0.00 B-5 81744FBP1 0.00 0.00 2,088,000.00 4,830.79 0.00 B-6 81744FBQ9 0.00 0.00 3,757,983.00 8,694.46 0.00 A-R 81744FBR7 0.00 0.00 0.00 0.00 0.00 ------------- ---- -------------- ------------- ---- Totals 13,704,784.45 0.00 778,994,755.71 15,538,771.78 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 Beginning Scheduled Unscheduled Original Face Certificate Principal Principal Realized Class Amount Balance Distribution Distribution Accretion Loss (1) - ----- ------------- ----------- ------------ ------------ --------- -------- A 799,511,000.00 757,207,557.16 0.00 13,704,784.45 0.00 0.00 X-1 0.00 0.00 0.00 0.00 0.00 0.00 X-2 0.00 0.00 0.00 0.00 0.00 0.00 X-B 0.00 0.00 0.00 0.00 0.00 0.00 B-1 14,612,000.00 14,612,000.00 0.00 0.00 0.00 0.00 B-2 8,350,000.00 8,350,000.00 0.00 0.00 0.00 0.00 B-3 4,175,000.00 4,175,000.00 0.00 0.00 0.00 0.00 B-4 2,509,000.00 2,509,000.00 0.00 0.00 0.00 0.00 B-5 2,088,000.00 2,088,000.00 0.00 0.00 0.00 0.00 B-6 3,757,983.00 3,757,983.00 0.00 0.00 0.00 0.00 A-R 100.00 0.00 0.00 0.00 0.00 0.00 -------------- -------------- ---- ------------- ---- ---- Totals 835,003,083.00 792,699,540.16 0.00 13,704,784.45 0.00 0.00 -------------- -------------- ---- ------------- ---- ---- Total Principal Ending Certificate Ending Certificate Total Principal Class Reduction Balance Percentage Distribution - ----- --------------- ------------------ ------------------ ---------------- A 13,704,784.45 743,502,772.71 0.92994690 13,704,784.45 X-1 0.00 0.00 0.00000000 0.00 X-2 0.00 0.00 0.00000000 0.00 X-B 0.00 0.00 0.00000000 0.00 B-1 0.00 14,612,000.00 1.00000000 0.00 B-2 0.00 8,350,000.00 1.00000000 0.00 B-3 0.00 4,175,000.00 1.00000000 0.00 B-4 0.00 2,509,000.00 1.00000000 0.00 B-5 0.00 2,088,000.00 1.00000000 0.00 B-6 0.00 3,757,983.00 1.00000000 0.00 A-R 0.00 0.00 0.00000000 0.00 ------------- -------------- ---------- ------------- Totals 13,704,784.45 778,994,755.71 0.93292441 13,704,784.45 ------------- -------------- ---------- ------------- (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 FACTORS STATEMENT Beginning Scheduled Unscheduled Original Face Certificate Principal Principal Realized Class Amount Balance Distribution Distribution Accretion Loss (3) - ----- ------------- ----------- ------------ ------------ --------- -------- A 799,511,000.00 947.08835421 0.00000000 17.14145828 0.00000000 0.00000000 X-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 X-2 0.00 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 X-B 0.00 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 14,612,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-2 8,350,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-3 4,175,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-4 2,509,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-5 2,088,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-6 3,757,983.00 1000.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-R 100.00 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 Total Principal Ending Certificate Ending Certificate Total Principal Class Reduction Balance Percentage Distribution - ----- --------------- ------------------- ------------------- ---------------- A 17.14145828 929.94689593 0.92994690 17.14145828 X-1 0.00000000 0.00000000 0.00000000 0.00000000 X-2 0.00000000 0.00000000 0.00000000 0.00000000 X-B 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 1000.00000000 1.00000000 0.00000000 B-2 0.00000000 1000.00000000 1.00000000 0.00000000 B-3 0.00000000 1000.00000000 1.00000000 0.00000000 B-4 0.00000000 1000.00000000 1.00000000 0.00000000 B-5 0.00000000 1000.00000000 1.00000000 0.00000000 B-6 0.00000000 1000.00000000 1.00000000 0.00000000 A-R 0.00000000 0.00000000 0.00000000 0.00000000 (3) Amount does not include excess special hazard, bankruptcy, or fraud losses unless otherwise disclosed. Please refer to the prospectus supplement for a full description. INTEREST DISTRIBUTION STATEMENT Beginning Certificate/ Original Face Current Notional Class Amount Certificate Rate Balance - ----- ------------- ---------------- ------------ A 799,511,000.00 1.60813% 757,207,557.16 X-1 0.00 0.80000% 687,820,907.09 X-2 0.00 0.44149% 757,207,557.16 X-B 0.00 0.53086% 22,962,000.00 B-1 14,612,000.00 2.10000% 14,612,000.00 B-2 8,350,000.00 2.50000% 8,350,000.00 B-3 4,175,000.00 2.77632% 4,175,000.00 B-4 2,509,000.00 2.77632% 2,509,000.00 B-5 2,088,000.00 2.77632% 2,088,000.00 B-6 3,757,983.00 2.77632% 3,757,983.00 A-R 100.00 2.68401% 0.00 -------------- Totals 835,003,083.00 -------------- Payment of Non- Current Unpaid Current Supported Accrued Interest Interest Interest Realized Class Interest Shortfall Shortfall Shortfall Loss (4) - ----- -------- ---------- --------- --------- -------- A 1,014,740.16 0.00 0.00 0.01 0.00 X-1 458,547.27 0.00 0.00 0.00 0.00 X-2 278,585.76 0.00 0.00 0.00 0.00 X-B 10,157.98 0.00 0.00 0.00 0.00 B-1 25,571.00 0.00 0.00 0.00 0.00 B-2 17,395.83 0.00 0.00 0.00 0.00 B-3 9,659.27 0.00 0.00 0.00 0.00 B-4 5,804.82 0.00 0.00 0.00 0.00 B-5 4,830.79 0.00 0.00 0.00 0.00 B-6 8,694.46 0.00 0.00 0.00 0.00 A-R 0.00 0.00 0.00 0.00 0.00 ------------ ---- ---- ---- ---- Totals 1,833,987.34 0.00 0.00 0.01 0.00 ------------ ---- ---- ---- ---- Remaining Ending Unpaid Certificate/ Total Interest Interest Notational Class Distribution Shortfall Balance - ----- -------------- --------- ------------ A 1,014,740.15 0.00 743,502,772.71 X-1 458,547.27 0.00 662,315,695.52 X-2 278,585.76 0.00 743,502,772.71 X-B 10,157.98 0.00 22,962,000.00 B-1 25,571.00 0.00 14,612,000.00 B-2 17,395.83 0.00 8,350,000.00 B-3 9,659.27 0.00 4,175,000.00 B-4 5,804.82 0.00 2,509,000.00 B-5 4,830.79 0.00 2,088,000.00 B-6 8,694.46 0.00 3,757,983.00 A-R 0.00 0.00 0.00 ------------ ---- Totals 1,833,987.33 0.00 ------------ ---- (4) Amount does not include excess special hazard, bankruptcy, or fraud losses unless otherwise disclosed. Please refer to the prospectus supplement for a full description. INTEREST DISTRIBUTION FACTORS STATEMENT Payment of Non- Current Beginning Unpaid Current Supported Class Original Face Certificate Certificate/ Current Accrued Interest Interest Interest Realized (5) Amount Rate Notional Balance Interest Shortfall Shortfall Shortfall Loss (6) - ----- -------------- ----------- ---------------- --------------- ---------- ---------- ---------- ---------- A 799,511,000.00 1.60813% 947.08835421 1.26920100 0.00000000 0.00000000 0.00000001 0.00000000 X-1 0.00 0.80000% 860.30199346 0.57353466 0.00000000 0.00000000 0.00000000 0.00000000 X-2 0.00 0.44149% 947.08835421 0.34844519 0.00000000 0.00000000 0.00000000 0.00000000 X-B 0.00 0.53086% 1000.00000000 0.44238220 0.00000000 0.00000000 0.00000000 0.00000000 B-1 14,612,000.00 2.10000% 1000.00000000 1.75000000 0.00000000 0.00000000 0.00000000 0.00000000 B-2 8,350,000.00 2.50000% 1000.00000000 2.08333293 0.00000000 0.00000000 0.00000000 0.00000000 B-3 4,175,000.00 2.77632% 1000.00000000 2.31359760 0.00000000 0.00000000 0.00000000 0.00000000 B-4 2,509,000.00 2.77632% 1000.00000000 2.31359904 0.00000000 0.00000000 0.00000000 0.00000000 B-5 2,088,000.00 2.77632% 1000.00000000 2.31359674 0.00000000 0.00000000 0.00000000 0.00000000 B-6 3,757,983.00 2.77632% 1000.00000000 2.31359748 0.00000000 0.00000000 0.00000000 0.00000000 A-R 100.00 2.68401% 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 Remaining Unpaid Class Total Interest Interest Ending Certificate/ (5) Distribution Shortfall Notational Balance - ----- -------------- ---------- ------------------- A 1.26920099 0.00000000 929.94689593 X-1 0.57353466 0.00000000 828.40097950 X-2 0.34844519 0.00000000 929.94689593 X-B 0.44238220 0.00000000 1000.00000000 B-1 1.75000000 0.00000000 1000.00000000 B-2 2.08333293 0.00000000 1000.00000000 B-3 2.31359760 0.00000000 1000.00000000 B-4 2.31359904 0.00000000 1000.00000000 B-5 2.31359674 0.00000000 1000.00000000 B-6 2.31359748 0.00000000 1000.00000000 A-R 0.00000000 0.00000000 0.00000000 (5) Per $1 denomination (6) Amount does not include excess special hazard, 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 15,855,611.34 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 34,821.17 Realized Losses (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 --------------- Total Deposits 15,890,432.51 Withdrawals Reimbursement for Servicer Advances 98,331.58 Payment of Service Fee 253,329.15 Payment of Interest and Principal 15,538,771.78 --------------- Total Withdrawals (Pool Distribution Amount) 15,890,432.51 Ending Balance 0.00 =============== PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 0.00 Servicing Fee Support 0.00 ------- Non-Supported Prepayment Curtailment Interest Shortfall 0.01 ======= SERVICING FEES Gross Servicing Fee 248,374.76 Master Servicing Fee 4,954.39 Supported Prepayment/Curtailment Interest Shortfall 0.00 ------------ Net Servicing Fee 253,329.15 ============ OTHER ACCOUNTS Beginning Current Current Ending Account Type Balance Withdrawals Deposits Balance - --------------------- --------- ----------- -------- -------- Class X-1 Sub Account 4,500.00 0.00 0.00 4,500.00 Class X-2 Sub Account 4,500.00 0.00 0.00 4,500.00 Class X-B Sub Account 1,000.00 0.00 0.00 1,000.00 LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT DELINQUENT No. of Principal Loans Balance 0-29 Days 0 0.00 30 Days 36 11,550,989.78 60 Days 4 2,457,550.67 90 Days 0 0.00 120 Days 0 0.00 150 Days 0 0.00 180+ Days 0 0.00 ---- ------------- 40 14,008,540.45 No. of Principal Loans Balance 0-29 Days 0.000000% 0.000000% 30 Days 1.515789% 1.482809% 60 Days 0.168421% 0.315478% 90 Days 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 180+ Days 0.000000% 0.000000% -------- -------- 1.684211% 1.798286% BANKRUPTCY No. of Principal Loans Balance 0-29 Days 0 0.00 30 Days 0 0.00 60 Days 0 0.00 90 Days 0 0.00 120 Days 0 0.00 150 Days 0 0.00 180+ Days 0 0.00 --- ---- 0 0.00 No. of Principal Loans Balance 0-29 Days 0.000000% 0.000000% 30 Days 0.000000% 0.000000% 60 Days 0.000000% 0.000000% 90 Days 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 180+ Days 0.000000% 0.000000% -------- -------- 0.000000% 0.000000% FORECLOSURE No. of Principal Loans Balance 0-29 Days 0 0.00 30 Days 0 0.00 60 Days 0 0.00 90 Days 0 0.00 120 Days 0 0.00 150 Days 0 0.00 180+ Days 0 0.00 --- ---- 0 0.00 No. of Principal Loans Balance 0-29 Days 0.000000% 0.000000% 30 Days 0.000000% 0.000000% 60 Days 0.000000% 0.000000% 90 Days 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 180+ Days 0.000000% 0.000000% -------- -------- 0.000000% 0.000000% REO No. of Principal Loans Balance 0-29 Days 0 0.00 30 Days 0 0.00 60 Days 0 0.00 90 Days 0 0.00 120 Days 0 0.00 150 Days 0 0.00 180+ Days 0 0.00 ---- ---- 0 0.00 No. of Principal Loans Balance 0-29 Days 0.000000% 0.000000% 30 Days 0.000000% 0.000000% 60 Days 0.000000% 0.000000% 90 Days 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 180+ Days 0.000000% 0.000000% -------- -------- 0.000000% 0.000000% TOTAL No. of Principal Loans Balance 0-29 Days 0 0.00 30 Days 36 11,550,989.78 60 Days 4 2,457,550.67 90 Days 0 0.00 120 Days 0 0.00 150 Days 0 0.00 180+ Days 0 0.00 --- ------------- 40 14,008,540.45 No. of Principal Loans Balance 0-29 Days 0.000000% 0.000000% 30 Days 1.515789% 1.482809% 60 Days 0.168421% 0.315478% 90 Days 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 180+ Days 0.000000% 0.000000% -------- -------- 1.684211% 1.798286% Current Period Class A Insufficient Funds: 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 34,821.17 Original $ Original% Current $ Current % Current Class % Prepayment % ------------- ---------- ------------- ---------- --------------- ------------ Class A 35,491,983.00 4.25052119% 35,491,983.00 4.55612605% 95.443874% 0.000000% Class X-1 35,491,983.00 4.25052119% 35,491,983.00 4.55612605% 0.000000% 0.000000% Class X-2 35,491,983.00 4.25052119% 35,491,983.00 4.55612605% 0.000000% 0.000000% Class B-1 20,879,983.00 2.50058753% 20,879,983.00 2.68037529% 1.875751% 41.169861% Class B-2 12,529,983.00 1.50059123% 12,529,983.00 1.60848105% 1.071894% 23.526440% Class B-3 8,354,983.00 1.00059307% 8,354,983.00 1.07253392% 0.535947% 11.763220% Class B-4 5,845,983.00 0.70011514% 5,845,983.00 0.75045216% 0.322082% 7.069202% Class B-5 3,757,983.00 0.45005618% 3,757,983.00 0.48241442% 0.268038% 5.883019% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.482414% 10.588259% Please refer to the prospectus supplement for a full description of loss exposure COLLATERAL STATEMENT Collateral Description Mixed Arm Weighted Average Gross Coupon 3.159810% Weighted Average Net Coupon 2.783816% Weighted Average Pass-Through Rate 2.776316% Weighted Average Maturity (Stepdown Calculation) 338 Beginning Scheduled Collateral Loan Count 2,411 Number of Loans Paid in Full 36 Ending Scheduled Collateral Loan Count 2,375 Beginning Scheduled Collateral Balance 792,699,540.90 Ending Scheduled Collateral Balance 778,994,756.45 Ending Actual Collateral Balance at 31-Aug-2004 778,993,869.82 Monthly P&I Constant 2,087,316.47 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realization Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 15,466,815.62 Ending Scheduled Balance for Premium Loans 778,994,756.45 Scheduled Principal 0.00 Unscheduled Principal 13,704,784.45 MISCELLANEOUS REPORTING One-Month Libor Loan Balance 104,546,086.14 Six-Month Libor Loan Balance 674,448,670.31 Prorata Senior Percentage 95.522644% Senior Percentage 100.000000% Senior Prepayment Percentage 100.000000% Subordinate Percentage 0.000000% Subordinate Prepayment Percentage 0.000000%