8-K 1 sam01004_sep.txt SEPTEMBER 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): September 27, 2004 STRUCTURED ASSET MORTGAGE INVESTMENTS INC. Mortgage Pass-Through Certificates, Series 2001-4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-56240-07 52-2316427 Pooling and Servicing Agreement) (Commission 52-2316428 (State or other File Number) IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank, 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) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17 CFR 240.13e-4(c)) ITEM 8.01 Other Events On September 27, 2004 a distribution was made to holders of STRUCTURED ASSET MORTGAGE INVESTMENTS INC., Mortgage Pass-Through Certificates, Series 2001-4 Trust. ITEM 9.01 Financial Statements and Exhibits (c) Exhibits Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-4 Trust, relating to the September 27, 2004 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. STRUCTURED ASSET MORTGAGE INVESTMENTS INC. Mortgage Pass-Through Certificates, Series 2001-4 Trust (Registrant) By: Wells Fargo Bank, N.A. as Trustee By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 10/4/2004 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-4 Trust, relating to the September 27, 2004 distribution. EX-99.1

Structured Asset Mortgage Investments Inc. Mortgage Pass-Through Certificates Record Date: 78/31/2004 Distribution Date: 89/2527/2004 SAM Series: 2001-4 Contact: Customer Service - CTSLink Wells Fargo Bank, 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 86358HLZ0 SEN 9.~~22027~~22537% 18,~~813~~280,~~276~~004.4581 ~~144~~140,~~552~~533.7422 ~~533~~391,~~271~~970.6407 A-2 86358HMD8 SEN 9.~~72883~~75045% 3,~~077~~003,~~229~~900.9067 24,~~948~~407.2082 73219,~~329~~844.2479 B-1 86358HMA4 SUB 9.~~41360~~42053% ~~624~~619,~~772~~143.8297 4,~~901~~860.1355 5,~~628~~461.8409 B-2 86358HMB2 SUB 9.~~41360~~42053% ~~624~~619,~~772~~143.8297 4,~~901~~860.1355 5,~~628~~461.8409 B-3 86358HMC0 SUB 9.~~41360~~42053% ~~468~~464,~~579~~357.6198 3,~~675~~645.8541 4,~~221~~095.6381 B-4 86358HME6 SUB 9.~~41360~~42053% ~~156~~154,~~193~~785.2099 1,~~225~~215.2814 1,~~407~~365.2127 B-5 86358HMF3 SUB 9.~~41360~~42053% ~~124~~123,~~954~~828.5679 ~~980~~972.2311 1,~~125~~092.7722 B-6 86358HMG1 SUB 9.~~41360~~42053% 7062,~~235~~153.5452 ~~550~~487.9793 ~~632~~548.7822 R-1 SAM0104R1 RES 0.00000% 0.00 0.00 0.00 R-2 SAM0104R2 RES 0.00000% 0.00 0.00 0.00 Totals 23,~~960~~327,~~014~~319.9070 ~~185~~180,~~735~~982.5373 ~~625~~629,~~245~~838.9556

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 1817,~~280~~888,~~004~~034.8174 ~~677~~532,~~824~~503.3829 0.00 A-2 0.00 32,~~003~~784,~~900~~055.6788 98244,~~277~~252.4461 0.00 B-1 0.00 ~~619~~613,~~143~~682.9789 10,~~529~~321.9764 0.00 B-2 0.00 ~~619~~613,~~143~~682.9789 10,~~529~~321.9764 0.00 B-3 0.00 ~~464~~460,~~357~~262.9816 7,~~897~~741.4822 0.00 B-4 0.00 ~~154~~153,~~785~~420.9972 2,~~632~~580.4941 0.00 B-5 0.00 ~~123~~122,~~828~~736.7958 2,~~106~~064.0033 0.00 B-6 720,~~449~~180.2468 6241,~~153~~424.5262 1,~~183~~036.7515 ~~135~~155,~~786~~966.1886 R-1 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 Totals 720,~~449~~180.2468 2322,~~327~~677,~~319~~300.7048 810,~~981~~821.4829 ~~135~~155,~~786~~966.1886 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 64,717,900.00 18,~~813~~280,~~276~~004.4581 ~~162~~159,~~400~~376.0054 ~~370~~232,~~871~~593.6453 0.00 0.00 A-2 14,607,800.00 3,~~077~~003,~~229~~900.9067 3227,~~888~~876.3852 40191,~~440~~968.8627 0.00 0.00 B-1 822,000.00 ~~624~~619,~~772~~143.8297 5,~~628~~461.8409 0.00 0.00 0.00 B-2 822,000.00 ~~624~~619,~~772~~143.8297 5,~~628~~461.8409 0.00 0.00 0.00 B-3 616,500.00 ~~468~~464,~~579~~357.6198 4,~~221~~095.6381 0.00 0.00 0.00 B-4 205,500.00 ~~156~~154,~~193~~785.2099 1,~~407~~365.2127 0.00 0.00 0.00 B-5 164,400.00 ~~124~~123,~~954~~828.5679 1,~~125~~092.7722 0.00 0.00 0.00 B-6 246,813.60 7062,~~235~~153.5452 ~~632~~548.7822 0.00 0.00 720,~~449~~180.2468 R-1 0.00 0.00 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 0.00 0.00 Totals 82,202,913.60 23,~~960~~327,~~014~~319.9070 ~~213~~205,~~933~~276.4576 ~~411~~424,~~312~~561.5080 0.00 720,~~449~~180.2468 (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 ~~533~~391,~~271~~970.6407 1817,~~280~~888,~~004~~034.8174 0.~~28245671~~27640011 ~~533~~391,~~271~~970.6407 A-2 73219,~~329~~844.2479 32,~~003~~784,~~900~~055.6788 0.~~20563676~~19058694 73219,~~329~~844.2479 B-1 5,~~628~~461.8409 ~~619~~613,~~143~~682.9789 0.~~75321651~~74657286 5,~~628~~461.8409 B-2 5,~~628~~461.8409 ~~619~~613,~~143~~682.9789 0.~~75321651~~74657286 5,~~628~~461.8409 B-3 4,~~221~~095.6381 ~~464~~460,~~357~~262.9816 0.~~75321651~~74657285 4,~~221~~095.6381 B-4 1,~~407~~365.2127 ~~154~~153,~~785~~420.9972 0.~~75321650~~74657285 1,~~407~~365.2127 B-5 1,~~125~~092.7722 ~~123~~122,~~828~~736.7958 0.~~75321648~~74657287 1,~~125~~092.7722 B-6 820,~~082~~728.0290 6241,~~153~~424.5262 0.~~25182372~~16783767 ~~632~~548.7822 R-1 0.00 0.00 0.00000000 0.00 R-2 0.00 0.00 0.00000000 0.00 Totals ~~632~~650,~~695~~019.1924 2322,~~327~~677,~~319~~300.7048 0.~~28377729~~27586979 ~~625~~629,~~245~~838.9556

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 64,717,900.00 ~~290~~282.~~69664575~~45670533 2.~~50935213~~46263460 53.~~73058829~~59395979 0.00000000 A-2 14,607,800.00 ~~210~~205.~~65662865~~63676050 21.~~25142595~~90833117 213.~~76844289~~14149085 0.00000000 B-1 822,000.00 ~~760~~753.~~06425791~~21650852 6.~~84773723~~64366180 0.00000000 0.00000000 B-2 822,000.00 ~~760~~753.~~06425791~~21650852 6.~~84773723~~64366180 0.00000000 0.00000000 B-3 616,500.00 ~~760~~753.~~06424980~~21651257 6.~~84773723~~64364964 0.00000000 0.00000000 B-4 205,500.00 ~~760~~753.~~06423358~~21649635 6.~~84773723~~64364964 0.00000000 0.00000000 B-5 164,400.00 ~~760~~753.~~06423358~~21648418 6.~~84774939~~64367397 0.00000000 0.00000000 B-6 246,813.60 ~~284~~251.~~56916475~~82372446 2.~~56379713~~22119040 0.00000000 0.00000000 R-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00 0.00000000 0.00000000 0.00000000 0.00000000 (2) All classes are 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 86.~~23994042~~05659439 ~~282~~276.~~45670533~~40011094 0.~~28245671~~27640011 86.~~23994042~~05659439 A-2 0.00000000 515.~~01986884~~04982201 ~~205~~190.~~63676050~~58693848 0.~~20563676~~19058694 515.~~01986884~~04982201 B-1 0.00000000 6.~~84773723~~64366180 ~~753~~746.~~21650852~~57285888 0.~~75321651~~74657286 6.~~84773723~~64366180 B-2 0.00000000 6.~~84773723~~64366180 ~~753~~746.~~21650852~~57285888 0.~~75321651~~74657286 6.~~84773723~~64366180 B-3 0.00000000 6.~~84773723~~64364964 ~~753~~746.~~21651257~~57284672 0.~~75321651~~74657285 6.~~84773723~~64364964 B-4 0.00000000 6.~~84773723~~64364964 ~~753~~746.~~21649635~~57284672 0.~~75321650~~74657285 6.~~84773723~~64364964 B-5 0.00000000 6.~~84774939~~64367397 ~~753~~746.~~21648418~~57287105 0.~~75321648~~74657287 6.~~84774939~~64367397 B-6 3081.~~18164315~~76486223 3283.~~74544028~~98605263 ~~251~~167.~~82372446~~83767183 0.~~25182372~~16783767 2.~~56379713~~22119040 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00000000 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 Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall A-1 64,717,900.00 9.~~22027~~22537% 18,~~813~~280,~~276~~004.4581 ~~144~~140,~~552~~533.8420 0.00 0.00 A-2 14,607,800.00 9.~~72883~~75045% 3,~~077~~003,~~229~~900.9067 24,~~948~~407.2182 0.00 0.00 B-1 822,000.00 9.~~41360~~42053% ~~624~~619,~~772~~143.8297 4,~~901~~860.1355 0.00 0.00 B-2 822,000.00 9.~~41360~~42053% ~~624~~619,~~772~~143.8297 4,~~901~~860.1355 0.00 0.00 B-3 616,500.00 9.~~41360~~42053% ~~468~~464,~~579~~357.6198 3,~~675~~645.8541 0.00 0.00 B-4 205,500.00 9.~~41360~~42053% ~~156~~154,~~193~~785.2099 1,~~225~~215.2814 0.00 0.00 B-5 164,400.00 9.~~41360~~42053% ~~124~~123,~~954~~828.5679 ~~980~~972.2311 0.00 0.00 B-6 246,813.60 9.~~41360~~42053% 7062,~~235~~153.5452 ~~550~~487.9793 0.00 0.00 R-1 0.00 0.00000% 0.00 0.00 0.00 0.00 R-2 0.00 0.00000% 0.00 0.00 0.00 0.00 Totals 82,202,913.60 ~~185~~180,~~735~~982.6471 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 (0.0002) 0.00 ~~144~~140,~~552~~533.7422 0.00 1817,~~280~~888,~~004~~034.8174 A-2 0.00 0.00 24,~~948~~407.2082 0.00 32,~~003~~784,~~900~~055.6788 B-1 0.00 0.00 4,~~901~~860.1355 0.00 ~~619~~613,~~143~~682.9789 B-2 0.00 0.00 4,~~901~~860.1355 0.00 ~~619~~613,~~143~~682.9789 B-3 0.00 0.00 3,~~675~~645.8541 0.00 ~~464~~460,~~357~~262.9816 B-4 0.00 0.00 1,~~225~~215.2814 0.00 ~~154~~153,~~785~~420.9972 B-5 0.00 0.00 ~~980~~972.2311 0.00 ~~123~~122,~~828~~736.7958 B-6 0.00 0.00 ~~550~~487.9793 0.00 6241,~~153~~424.5262 R-1 0.00 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 0.00 Totals (0.0002) 0.00 ~~185~~180,~~735~~982.5373 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 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 64,717,900.00 9.~~22027~~22537% ~~290~~282.~~69664575~~45670533 2.~~23358360~~17147343 0.00000000 0.00000000 A-2 14,607,800.00 9.~~72883~~75045% ~~210~~205.~~65662865~~63676050 1.~~70786908~~67087583 0.00000000 0.00000000 B-1 822,000.00 9.~~41360~~42053% ~~760~~753.~~06425791~~21650852 5.~~96244526~~91307786 0.00000000 0.00000000 B-2 822,000.00 9.~~41360~~42053% ~~760~~753.~~06425791~~21650852 5.~~96244526~~91307786 0.00000000 0.00000000 B-3 616,500.00 9.~~41360~~42053% ~~760~~753.~~06424980~~21651257 5.~~96244931~~91307380 0.00000000 0.00000000 B-4 205,500.00 9.~~41360~~42053% ~~760~~753.~~06423358~~21649635 5.~~96243309~~91309002 0.00000000 0.00000000 B-5 164,400.00 9.~~41360~~42053% ~~760~~753.~~06423358~~21648418 5.~~96246959~~91307786 0.00000000 0.00000000 B-6 246,813.60 9.~~41360~~42053% ~~284~~251.~~56916475~~82372446 21.~~23233242~~97691699 0.00000000 0.00000000 R-1 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00 0.00000% 0.00000000 0.00000000 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.~~00000000~~00000031) 0.00000000 2.~~23358205~~17147373 0.00000000 ~~282~~276.~~45670533~~40011094 A-2 0.00000000 0.00000000 1.~~70786840~~67087583 0.00000000 ~~205~~190.~~63676050~~58693848 B-1 0.00000000 0.00000000 5.~~96244526~~91307786 0.00000000 ~~753~~746.~~21650852~~57285888 B-2 0.00000000 0.00000000 5.~~96244526~~91307786 0.00000000 ~~753~~746.~~21650852~~57285888 B-3 0.00000000 0.00000000 5.~~96244931~~91307380 0.00000000 ~~753~~746.~~21651257~~57284672 B-4 0.00000000 0.00000000 5.~~96243309~~91309002 0.00000000 ~~753~~746.~~21649635~~57284672 B-5 0.00000000 0.00000000 5.~~96246959~~91307786 0.00000000 ~~753~~746.~~21648418~~57287105 B-6 0.00000000 0.00000000 21.~~23233242~~97691699 0.00000000 ~~251~~167.~~82372446~~83767183 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (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 ~~823~~844,~~120~~131.7670 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 5851,~~103~~289.4640 Realized Loss (Gains, Subsequent Expenses & Recoveries) (720,~~449~~180.2468) Prepayment Penalties 0.00 Total Deposits ~~873~~875,~~774~~240.9842 Withdrawals Reimbursement for Servicer Advances 5658,~~303~~103.6446 Payment of Service Fee 6,~~489~~315.8667 Payment of Interest and Principal 810,~~981~~821.4829 Total Withdrawals (Pool Distribution Amount) ~~873~~875,~~774~~240.9842 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee 4,~~665~~542.7308 MBIA Insurance Fee 1,~~824~~773.1359 Special Servicing Fee 0.00 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 6,~~489~~315.8667

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 5 0 0 5 9998,~~419~~503.7834 0.00 0.00 9998,~~419~~503.7834 30 Days 7250 0 0 0 7250 21,~~052~~410,~~054~~076.3485 0.00 0.00 0.00 21,~~052~~410,~~054~~076.3485 60 Days 1518 0 0 0 1518 1675,~~395,655~~377.9266 0.00 0.00 0.00 1675,~~395,655~~377.9266 90 Days 29 10 0 0 39 151,~~574~~099,522.0969 ~~95,846~~0.4800 0.00 0.00 ~~111~~1,~~420~~099,522.5769 120 Days 63 1 2 1 0 96 6446,~~033~~494.0768 37133,~~336~~083.0007 5812,~~062~~615.0476 0.00 ~~159~~192,~~431~~193.1151 150 Days 12 0 01 0 13 1013,~~273~~997.6452 0.00 013,052.0075 0.00 1027,~~273~~050.6427 180+ Days 13 2 63 21 119 1034,~~257~~160.0998 82,531.18 ~~169~~121,~~141~~668.2839 6426,~~194~~380.4258 ~~326~~264,~~123~~741.9713 Totals 9785 9 85 21 ~~116~~100 3,~~547~~279,~~848~~630.1538 ~~315~~314,~~133~~117.4459 ~~227~~147,~~203~~336.3290 6426,~~194~~380.4258 43,~~154~~767,~~379~~465.3345 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.~~505051~~522466% 0.000000% 0.000000% 0.~~505051~~522466% 0.~~422527~~430719% 0.000000% 0.000000% 0.~~422527~~430719% 30 Days 75.~~272727~~224660% 0.000000% 0.000000% 0.000000% 75.~~272727~~224660% 86.~~721087~~165743% 0.000000% 0.000000% 0.000000% 86.~~721087~~165743% 60 Days 1.~~515152~~880878% 0.000000% 0.000000% 0.000000% 1.~~515152~~880878% 52.~~931440~~953176% 0.000000% 0.000000% 0.000000% 52.~~931440~~953176% 90 Days 0.~~202020~~940439% 0.~~101010~~000000% 0.000000% 0.000000% 0.~~303030~~940439% 04.~~066189~~807805% 0.~~407341~~000000% 0.000000% 0.000000% 04.~~473530~~807805% 120 Days 0.~~606061~~313480% 0.~~101010~~208986% 0.~~202020~~104493% 0.000000% 0.~~909091~~626959% 0.~~272136~~203304% 0.~~158675~~581923% 0.~~246760~~055164% 0.000000% 0.~~677571~~840391% 150 Days 0.~~101010~~208986% 0.000000% 0.~~000000~~104493% 0.000000% 0.~~101010~~313480% 0.~~043662~~061206% 0.000000% 0.~~000000~~057075% 0.000000% 0.~~043662~~118281% 180+ Days 0.~~101010~~313480% 0.~~202020~~208986% 0.~~606061~~313480% 0.~~202020~~104493% 10.~~111111~~940439% 0.~~043592~~149373% 0.~~350752~~360878% 0.~~718839~~532011% 0.~~272822~~115352% 1.~~386004~~157615% Totals 98.~~797980~~881923% 0.~~909091~~940439% 0.~~808081~~522466% 0.~~202020~~104493% 1110.~~717172~~449321% 1514.~~078106~~340606% 1.~~339295~~373520% 0.~~965598~~644250% 0.~~272822~~115352% 1716.~~655821~~473728%

Delinquency Status By Groups DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group I 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 3 0 0 3 58,~~655~~151.3309 0.00 0.00 58,~~655~~151.3309 30 Days 6042 0 0 0 6042 1,~~577~~094,~~897~~499.9100 0.00 0.00 0.00 1,~~577~~094,~~897~~499.9100 60 Days 1217 0 0 0 1217 1642,~~306,148~~784.6718 0.00 0.00 0.00 1642,~~306,148~~784.6718 90 Days 17 10 0 0 27 121,~~615~~077,525.7626 ~~95,846~~0.4800 0.00 0.00 ~~108~~1,~~462~~077,525.2426 120 Days 1 1 2 1 0 4 27,~~460~~398.8828 37133,~~336~~083.0007 5812,~~062~~615.0476 0.00 ~~122~~173,~~858~~097.9211 150 Days 1 0 01 0 12 10,~~273~~198.6419 0.00 013,052.0075 0.00 1023,~~273~~250.6494 180 Days 13 2 63 21 119 1034,~~257~~160.0998 82,531.18 ~~169~~121,~~141~~668.2839 6426,~~194~~380.4258 ~~326~~264,~~123~~741.9713 Totals 7671 7 85 21 9384 2,~~944~~886,~~653~~565.9589 ~~274~~273,~~368~~765.9934 ~~227~~147,~~203~~336.3290 6426,~~194~~380.4258 3,~~510~~334,~~420~~048.6871 0-29 Days 0.~~362319~~371287% 0.000000% 0.000000% 0.~~362319~~371287% 0.~~291488~~295226% 0.000000% 0.000000% 0.~~291488~~295226% 30 Days 75.~~246377~~198020% 0.000000% 0.000000% 0.000000% 75.~~246377~~198020% 75.~~841373~~556638% 0.000000% 0.000000% 0.000000% 75.~~841373~~556638% 60 Days 12.~~449275~~103960% 0.000000% 0.000000% 0.000000% 12.~~449275~~103960% 63.~~490914~~263337% 0.000000% 0.000000% 0.000000% 63.~~490914~~263337% 90 Days 0.~~120773~~866337% 0.~~120773~~000000% 0.000000% 0.000000% 0.~~241546~~866337% 05.~~062694~~470464% 0.~~476310~~000000% 0.000000% 0.000000% 05.~~539004~~470464% 120 Days 0.~~120773~~123762% 0.~~120773~~247525% 0.~~241546~~123762% 0.000000% 0.~~483092~~495050% 0.~~136467~~139098% 0.~~185541~~675646% 0.~~288540~~064049% 0.000000% 0.~~610548~~878793% 150 Days 0.~~120773~~123762% 0.000000% 0.~~000000~~123762% 0.000000% 0.~~120773~~247525% 0.~~051055~~051775% 0.000000% 0.~~000000~~066267% 0.000000% 0.~~051055~~118042% 180 Days 0.~~120773~~371287% 0.~~241546~~247525% 0.~~724638~~371287% 0.~~241546~~123762% 1.~~328502~~113861% 0.~~050973~~173431% 0.~~410139~~419001% 0.~~840549~~617696% 0.~~319015~~133931% 1.~~620675~~344058% Totals 98.~~178744~~787129% 0.~~845411~~866337% 0.~~966184~~618812% 0.~~241546~~123762% 1110.~~231884~~396040% 14.~~633476~~654742% 1.~~363478~~389873% 10.~~129088~~748011% 0.~~319015~~133931% 1716.~~445057~~926557% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group II 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 2 0 0 2 40,~~764~~352.4525 0.00 0.00 40,~~764~~352.4525 30 Days 128 0 0 0 128 ~~474~~315,~~156~~577.4385 0.00 0.00 0.00 ~~474~~315,~~156~~577.4385 60 Days 31 0 0 0 31 8932,~~507~~593.2548 0.00 0.00 0.00 8932,~~507~~593.2548 90 Days 12 0 0 0 1 2 21,~~958~~997.3343 0.00 0.00 0.00 221,~~958~~997.3343 120 Days 52 0 0 0 52 3619,~~572~~096.1940 0.00 0.00 0.00 3619,~~572~~096.1940 150 Days 01 0 0 0 01 03,799.0033 0.00 0.00 0.00 03,799.0033 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 2114 2 0 0 2316 ~~603~~393,~~194~~064.2049 40,~~764~~352.4525 0.00 0.00 ~~643~~433,~~958~~416.6574 0-29 Days 1.~~234568~~342282% 0.000000% 0.000000% 1.~~234568~~342282% 1.~~196464~~271982% 0.000000% 0.000000% 1.~~196464~~271982% 30 Days 75.~~407407~~369128% 0.000000% 0.000000% 0.000000% 75.~~407407~~369128% 139.~~916814~~947632% 0.000000% 0.000000% 0.000000% 139.~~916814~~947632% 60 Days 10.~~851852~~671141% 0.000000% 0.000000% 0.000000% 10.~~851852~~671141% 21.~~627099~~027410% 0.000000% 0.000000% 0.000000% 21.~~627099~~027410% 90 Days 01.~~617284~~342282% 0.000000% 0.000000% 0.000000% 01.~~617284~~342282% 0.~~086829~~693402% 0.000000% 0.000000% 0.000000% 0.~~086829~~693402% 120 Days 31.~~086420~~342282% 0.000000% 0.000000% 0.000000% 31.~~086420~~342282% 10.~~073419~~601956% 0.000000% 0.000000% 0.000000% 10.~~073419~~601956% 150 Days 0.~~000000~~671141% 0.000000% 0.000000% 0.000000% 0.~~000000~~671141% 0.~~000000~~119762% 0.000000% 0.000000% 0.000000% 0.~~000000~~119762% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 129.~~962963~~395973% 1.~~234568~~342282% 0.000000% 0.000000% 1410.~~197531~~738255% 1712.~~704160~~390162% 1.~~196464~~271982% 0.000000% 0.000000% 1813.~~900624~~662144%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 5851,~~103~~289.4640

COLLATERAL STATEMENT Collateral Description Fixed 30 Year Weighted Average Gross Coupon 9.~~627309~~634973% Weighted Average Net Coupon 9.~~393633~~401320% Weighted Average Pass-Through Rate 9.~~393633~~401320% Weighted Average Maturity(Stepdown Calculation ) ~~241~~240 Beginning Scheduled Collateral Loan Count ~~1,019~~990 Number Of Loans Paid In Full 2933 Ending Scheduled Collateral Loan Count ~~990~~957 Beginning Scheduled Collateral Balance 23,~~960~~327,~~014~~319.9070 Ending Scheduled Collateral Balance 2322,~~327~~677,~~319~~300.7047 Ending Actual Collateral Balance at 31-~~Jul~~Aug-2004 2322,~~529~~869,~~800~~537.0065 Monthly P &I Constant ~~406~~392,~~158~~575.8516 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 720,~~449~~180.2468 Cumulative Realized Loss ~~135~~155,~~786~~966.2088 Ending Scheduled Balance for Premium Loans 2322,~~327~~677,~~319~~300.7047 Scheduled Principal ~~213~~205,~~933~~276.4675 Unscheduled Principal ~~418~~444,~~761~~742.7448

Miscellaneous Reporting Senior Percentage Group I 91.~~758737~~614861% Senior Percentage Group II 89.~~013590~~025047% Senior Prep. Percentage Group I 100.000000% Senior Prep. Percentage Group II 100.000000% Subordinate Percentage Group I 8.~~241263~~385139% Subordinate Percentage Group II 10.~~986410~~974953% Subordinate Prep. Percentage Group I 0.000000% Subordinate Prep. Percentage Group II 0.000000%

Group Level Collateral Statement Group Group I Group II Total Collateral Description Fixed 30 Year Fixed 30 Year Fixed 30 Year Weighted Average Coupon Rate 9.~~551179~~556255 10.~~078818~~100465 9.~~627309~~634973 Weighted Average Net Rate 9.~~320256~~325366 9.~~828817~~850466 9.~~393633~~401320 Weighted Average Maturity ~~241~~240 ~~201~~200 ~~241~~240 Beginning Loan Count ~~854~~828 ~~165~~162 ~~1,019~~990 Loans Paid In Full 2620 313 2933 Ending Loan Count ~~828~~808 ~~162~~149 ~~990~~957 Beginning Scheduled Balance 2019,~~502~~953,~~981~~100.0500 3,~~457~~374,~~033~~219.8570 23,~~960~~327,~~014~~319.9070 Ending scheduled Balance 19,~~953~~528,~~100~~298.0062 3,~~374~~149,~~219~~001.7085 2322,~~327~~677,~~319~~300.7047 Record Date 0708/31/2004 0708/31/2004 0708/31/2004 Principal And Interest Constant ~~340~~332,~~175~~861.5805 6559,~~983~~714.2711 ~~406~~392,~~158~~575.8516 Scheduled Principal ~~176~~173,~~985~~963.8763 3631,~~947~~313.5912 ~~213~~205,~~933~~276.4675 Unscheduled Principal ~~372~~250,~~895~~837.1875 45193,~~866~~904.5673 ~~418~~444,~~761~~742.7448 Scheduled Interest ~~163~~158,~~189~~897.7142 2928,~~035~~400.6899 ~~192~~187,~~225~~298.3941 Servicing Fees 3,~~945~~839.5112 ~~720~~702.2296 4,~~665~~542.7308 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 0.00 0.00 0.00 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest ~~159~~155,~~244~~058.2030 2827,~~315~~698.4603 ~~187~~182,~~559~~756.6633 Realized Loss Amount 218,~~023~~244.5422 51,~~425~~936.7046 720,~~449~~180.2468 Cumulative Realized Loss ~~119~~137,~~336~~580.5577 1618,~~449~~386.6511 ~~135~~155,~~786~~966.2088 Percentage of Cumulative Losses 0.~~1779~~2051 0.~~1087~~1215 0.~~1652~~1897 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 9.~~320256~~325366 9.~~828818~~850465 9.~~393633~~401320

Filing Compare · STRUCTURED ASSET MORT INV MORT PASS THR CERT SER 2001-4