8-K 1 bst01004_aug.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, 2004 BEAR STEARNS ARM TRUST Mortgage Pass-Through Certificates, Series 2001-4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-51279-15 90-0031696 Pooling and Servicing Agreement) (Commission 90-0042385 (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 August 25, 2004 a distribution was made to holders of BEAR STEARNS ARM TRUST, 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 August 25, 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. BEAR STEARNS ARM TRUST Mortgage Pass-Through Certificates, Series 2001-4 Trust (Registrant) By: Wells Fargo Bank, N.A. as Securities Administrator By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 8/25/2004 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 August 25, 2004 distribution. EX-99.1

Bear Stearns ARM Trust Mortgage Pass-Through Certificates Record Date: 67/3031/2004 Distribution Date: 78/2625/2004 BST 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 I-A 07384MCX8 SEN 3.~~89373~~90448% 13,~~660~~569,~~600~~379.4289 44,~~325~~103.5763 91550,~~220~~263.5386 II-A 07384MCY6 SEN 4.~~16054~~21185% 3,~~315~~306,~~898~~021.4817 11,~~496~~592.5914 9445,~~877~~900.3120 R-I 07384MCZ3 SEN 7.~~12909~~12718% 0.00 0.00 0.00 R-II 07384MDU3 SEN 7.~~12909~~12718% 0.00 0.00 0.00 B-1 07384MDA7 SUB 3.~~94713~~96618% 1,~~188~~181,~~575~~518.2939 3,~~909~~900.5596 770,~~056~~285.9078 B-2 07384MDB5 SUB 3.~~94713~~96618% ~~950~~945,~~934~~288.6165 3,~~127~~121.8902 556,~~645~~233.9602 B-3 07384MDC3 SUB 3.~~94713~~96618% ~~713~~708,~~107~~874.9907 2,~~345~~340.6146 442,~~233~~169.9227 B-4 07384MEB4 SUB 3.~~94713~~96618% ~~808~~803,~~313~~513.0284 2,~~658~~652.7792 447,799.1817 B-5 07384MEC2 SUB 3.~~94713~~96618% ~~160~~159,~~565~~612.5725 ~~528~~526.1498 ~~953~~9,494.3296 B-6 07384MED0 SUB 6.~~59444~~57999% 0.00 0.00 0.00 Totals 20,~~797~~674,~~995~~208.3826 68,~~392~~238.1211 ~~123~~1,~~787~~222,146.1226

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses I-A 0.00 13,~~569~~019,~~379~~116.8903 ~~135~~594,~~546~~367.1049 0.00 II-A 0.00 32,~~306~~860,~~021~~120.1796 21457,~~373~~492.9034 0.00 R-I 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 B-1 0.00 1,~~181~~111,~~518~~232.3961 1074,~~966~~186.4574 0.00 B-2 0.00 ~~945~~889,~~288~~055.6563 859,~~773~~354.8504 0.00 B-3 0.00 ~~708~~666,~~874~~704.0780 644,~~579~~509.5373 0.00 B-4 0.00 ~~803~~755,~~513~~714.8467 750,~~457~~452.9509 0.00 B-5 0.00 ~~159~~150,~~612~~117.2529 110,~~481~~021.4694 130,058.78 B-6 0.00 0.00 0.00 347,452.00 Totals 0.00 2019,~~674~~452,~~208~~061.2699 ~~192~~1,~~179~~290,384.2437 477,510.78 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) I-A 80,256,000.00 13,~~660~~569,~~600~~379.4289 3231,~~144~~625.8856 59518,~~075~~638.6530 0.00 0.00 II-A 17,416,100.00 3,~~315~~306,~~898~~021.4817 9,~~041~~021.4862 ~~835~~436,878.8358 0.00 0.00 R-I 50.00 0.00 0.00 0.00 0.00 0.00 R-II 50.00 0.00 0.00 0.00 0.00 0.00 B-1 1,278,400.00 1,~~188~~181,~~575~~518.2939 2,~~885~~848.7316 467,~~171~~437.1862 0.00 0.00 B-2 1,022,800.00 ~~950~~945,~~934~~288.6165 2,~~308~~278.7671 353,~~337~~954.2031 0.00 0.00 B-3 767,000.00 ~~713~~708,~~107~~874.9907 1,~~731~~708.3581 240,~~502~~460.5746 0.00 0.00 B-4 869,400.00 ~~808~~803,~~313~~513.0284 1,~~962~~936.4995 245,~~836~~862.6922 0.00 0.00 B-5 306,800.00 ~~160~~159,~~565~~612.5725 ~~389~~384.8476 ~~563~~9,110.4920 0.00 0.00 B-6 358,051.00 0.00 0.00 0.00 0.00 0.00 Totals 102,274,651.00 20,~~797~~674,~~995~~208.3826 5049,~~464~~804.5357 731,~~322~~172,341.6169 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 I-A 91550,~~220~~263.5386 13,~~569~~019,~~379~~116.8903 0.~~16907620~~16221985 91550,~~220~~263.5386 II-A 9445,~~877~~900.3120 32,~~306~~860,~~021~~120.1796 0.~~18982557~~16422281 9445,~~877~~900.3120 R-I 0.00 0.00 0.00000000 0.00 R-II 0.00 0.00 0.00000000 0.00 B-1 770,~~056~~285.9078 1,~~181~~111,~~518~~232.3961 0.~~92421651~~86923702 770,~~056~~285.9078 B-2 556,~~645~~233.9602 ~~945~~889,~~288~~055.6563 0.~~92421651~~86923703 556,~~645~~233.9602 B-3 442,~~233~~169.9227 ~~708~~666,~~874~~704.0780 0.~~92421652~~86923703 442,~~233~~169.9227 B-4 447,799.1817 ~~803~~755,~~513~~714.8467 0.~~92421652~~86923703 447,799.1817 B-5 ~~953~~9,494.3296 ~~159~~150,~~612~~117.2529 0.~~52024853~~48930016 ~~953~~9,494.3296 B-6 0.00 0.00 0.00000000 0.00 Totals ~~123~~1,~~787~~222,146.1226 2019,~~674~~452,~~208~~061.2699 0.~~20214401~~19019436 ~~123~~1,~~787~~222,146.1226

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion I-A 80,256,000.00 ~~170~~169.~~21282421~~07620477 0.~~40052931~~39405851 06.~~73609014~~46229939 0.00000000 II-A 17,416,100.00 ~~190~~189.~~39271019~~82557346 0.~~51914493~~51800460 025.~~04799180~~08475376 0.00000000 R-I 50.00 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 1,278,400.00 ~~929~~924.~~73661608~~21651283 2.~~25729819~~22790989 352.~~26281289~~75158010 0.00000000 B-2 1,022,800.00 ~~929~~924.~~73661517~~21651349 2.~~25729370~~22791357 352.~~26280798~~75157411 0.00000000 B-3 767,000.00 ~~929~~924.~~73662321~~21651890 2.~~25730117~~22791395 352.~~26280313~~75157757 0.00000000 B-4 869,400.00 ~~929~~924.~~73662296~~21651714 2.~~25729239~~22791580 352.~~26281343~~75157580 0.00000000 B-5 306,800.00 ~~523~~520.~~35583442~~24853325 1.~~27066493~~25410691 129.~~83666884~~69426336 0.00000000 B-6 358,051.00 0.00000000 0.00000000 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 I-A 0.00000000 16.~~13661944~~85635790 ~~169~~162.~~07620477~~21984687 0.~~16907620~~16221985 16.~~13661944~~85635790 II-A 0.00000000 025.~~56713673~~60275837 ~~189~~164.~~82557346~~22281452 0.~~18982557~~16422281 025.~~56713673~~60275837 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 554.~~52010325~~97948999 ~~924~~869.~~21651283~~23702284 0.~~92421651~~86923702 554.~~52010325~~97948999 B-2 0.00000000 554.~~52010168~~97948768 ~~924~~869.~~21651349~~23702581 0.~~92421651~~86923703 554.~~52010168~~97948768 B-3 0.00000000 554.~~52010430~~97949153 ~~924~~869.~~21651890~~23702738 0.~~92421652~~86923703 554.~~52010430~~97949153 B-4 0.00000000 554.~~52010582~~97949160 ~~924~~869.~~21651714~~23702553 0.~~92421652~~86923703 554.~~52010582~~97949160 B-5 0.00000000 330.~~10730117~~94837027 ~~520~~489.~~24853325~~30016297 0.~~52024853~~48930016 330.~~10730117~~94837027 B-6 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 I-A 80,256,000.00 3.~~89373~~90448% 13,~~660~~569,~~600~~379.4289 44,~~325~~151.5810 0.00 0.00 II-A 17,416,100.00 4.~~16054~~21185% 3,~~315~~306,~~898~~021.4817 11,~~496~~603.5971 0.00 0.00 R-I 50.00 7.~~12909~~12718% 0.00 0.00 0.00 0.00 R-II 50.00 7.~~12909~~12718% 0.00 0.00 0.00 0.00 B-1 1,278,400.00 3.~~94713~~96618% 1,~~188~~181,~~575~~518.2939 3,~~909~~905.5510 0.00 0.00 B-2 1,022,800.00 3.~~94713~~96618% ~~950~~945,~~934~~288.6165 3,~~127~~124.8932 0.00 0.00 B-3 767,000.00 3.~~94713~~96618% ~~713~~708,~~107~~874.9907 2,~~345~~342.6194 0.00 0.00 B-4 869,400.00 3.~~94713~~96618% ~~808~~803,~~313~~513.0284 2,~~658~~655.7774 0.00 0.00 B-5 306,800.00 3.~~94713~~96618% ~~160~~159,~~565~~612.5725 ~~528~~527.1454 0.00 0.00 B-6 358,051.00 6.~~59444~~57999% 0.00 0.00 0.00 0.00 Totals 102,274,651.00 68,~~392~~310.1345 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 I-A 047.0047 0.00 44,~~325~~103.5763 0.00 13,~~569~~019,~~379~~116.8903 II-A 011.0057 0.00 11,~~496~~592.5914 0.00 32,~~306~~860,~~021~~120.1796 R-I 0.00 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 0.00 B-1 04.0013 0.00 3,~~909~~900.5596 0.00 1,~~181~~111,~~518~~232.3961 B-2 03.0031 0.00 3,~~127~~121.8902 0.00 ~~945~~889,~~288~~055.6563 B-3 02.0048 0.00 2,~~345~~340.6146 0.00 ~~708~~666,~~874~~704.0780 B-4 02.0081 0.00 2,~~658~~652.7792 0.00 ~~803~~755,~~513~~714.8467 B-5 0.0056 0.00 ~~528~~526.1498 0.00 ~~159~~150,~~612~~117.2529 B-6 0.00 0.00 0.00 0.00 0.00 Totals 072.0033 0.00 68,~~392~~238.1211 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 I-A 80,256,000.00 3.~~89373~~90448% ~~170~~169.~~21282421~~07620477 0.~~55230238~~55012834 0.00000000 0.00000000 II-A 17,416,100.00 4.~~16054~~21185% ~~190~~189.~~39271019~~82557346 0.~~66011277~~66626340 0.00000000 0.00000000 R-I 50.00 7.~~12909~~12718% 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 7.~~12909~~12718% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 1,278,400.00 3.~~94713~~96618% ~~929~~924.~~73661608~~21651283 3.~~05815864~~05467772 0.00000000 0.00000000 B-2 1,022,800.00 3.~~94713~~96618% ~~929~~924.~~73661517~~21651349 3.~~05816386~~05467345 0.00000000 0.00000000 B-3 767,000.00 3.~~94713~~96618% ~~929~~924.~~73662321~~21651890 3.~~05816167~~05468057 0.00000000 0.00000000 B-4 869,400.00 3.~~94713~~96618% ~~929~~924.~~73662296~~21651714 3.~~05816655~~05468139 0.00000000 0.00000000 B-5 306,800.00 3.~~94713~~96618% ~~523~~520.~~35583442~~24853325 1.~~72144720~~71949153 0.00000000 0.00000000 B-6 358,051.00 6.~~59444~~57999% 0.00000000 0.00000000 0.00000000 0.00000000 (5) 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 I-A 0.~~00000000~~00059148 0.00000000 0.~~55230226~~54953686 0.00000000 ~~169~~162.~~07620477~~21984687 II-A 0.~~00000000~~00066433 0.00000000 0.~~66011277~~66559907 0.00000000 ~~189~~164.~~82557346~~22281452 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.~~00000000~~00323060 0.00000000 3.~~05815864~~05143930 0.00000000 ~~924~~869.~~21651283~~23702284 B-2 0.~~00000000~~00323621 0.00000000 3.~~05816386~~05144701 0.00000000 ~~924~~869.~~21651349~~23702581 B-3 0.~~00000000~~00323338 0.00000000 3.~~05816167~~05144720 0.00000000 ~~924~~869.~~21651890~~23702738 B-4 0.~~00000000~~00323211 0.00000000 3.~~05816655~~05143777 0.00000000 ~~924~~869.~~21651714~~23702553 B-5 0.~~00000000~~00182529 0.00000000 1.~~72144720~~71766623 0.00000000 ~~520~~489.~~24853325~~30016297 B-6 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 ~~192~~1,~~304~~299,924.3926 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 128,~~569~~301.0985 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits ~~204~~1,~~873~~308,226.4811 Withdrawals Reimbursement for Servicer Advances 712,~~385~~569.4809 Payment of Service Fee 5,~~308~~272.7464 Payment of Interest and Principal ~~192~~1,~~179~~290,384.2638 Total Withdrawals (Pool Distribution Amount) ~~204~~1,~~873~~308,226.4811 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall 072.0033 Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall 072.0033

SERVICING FEES Gross Servicing Fee 5,~~308~~272.7464 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 5,~~308~~272.7464

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 94 0 0 0 94 1704,~~548,903~~017.2045 0.00 0.00 0.00 1704,~~548,903~~017.2045 60 Days 21 0 0 0 21 ~~449~~92,~~843~~264.2962 0.00 0.00 0.00 ~~449~~92,~~843~~264.2962 90 Days 1 0 01 0 12 50122,~~380~~276.0233 0.00 0327,566.0096 0.00 50449,~~380~~843.0229 120 Days 01 0 0 0 01 050,380.0002 0.00 0.00 0.00 050,380.0002 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180+ Days 0 0 1 0 0 1 0.00 ~~0.00~~ 80,855.64 0.00 0.00 80,855.64 Totals 127 01 1 0 139 2968,~~049,126~~938.5142 ~~0.00~~ 80,855.64 327,566.96 0.00 21,~~129~~377,~~982~~361.1502 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 84.~~571429~~081633% 0.000000% 0.000000% 0.000000% 84.~~571429~~081633% 73.~~472162~~610154% 0.000000% 0.000000% 0.000000% 73.~~472162~~610154% 60 Days 1.~~904762~~020408% 0.000000% 0.000000% 0.000000% 1.~~904762~~020408% 20.~~170118~~473127% 0.000000% 0.000000% 0.000000% 20.~~170118~~473127% 90 Days 01.~~952381~~020408% 0.000000% 01.~~000000~~020408% 0.000000% 02.~~952381~~040816% 0.~~243041~~627025% 0.000000% 01.~~000000~~679741% 0.000000% 02.~~243041~~306766% 120 Days 01.~~000000~~020408% 0.000000% 0.000000% 0.000000% 01.~~000000~~020408% 0.~~000000~~258345% 0.000000% 0.000000% 0.000000% 0.~~000000~~258345% 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% 01.~~000000~~020408% 0.~~952381~~000000% 0.000000% 01.~~952381~~020408% 0.000000% 0.~~000000~~414622% 0.~~390061~~000000% 0.000000% 0.~~390061~~414622% Totals 117.~~428571~~142857% 01.~~000000~~020408% 01.~~952381~~020408% 0.000000% 129.~~380952~~183673% 94.~~885322~~968651% 0.~~000000~~414622% 01.~~390061~~679741% 0.000000% 107.~~275382~~063015%

Delinquency Status By Groups DELINQUENT BANKRUPTCY FORECLOSURE REO Total 1 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 51 0 0 0 5 1 175,~~086,836~~377.4795 0.00 0.00 0.00 1175,~~086,836~~377.4795 60 Days 10 0 0 0 10 ~~327,566~~0.9600 0.00 0.00 0.00 ~~327,566~~0.9600 90 Days 1 0 0 1 0 1 ~~50,380.02~~ 0.00 0.00 327,566.96 0.00 50327,~~380~~566.0296 120 Days 01 0 0 0 01 050,380.0002 0.00 0.00 0.00 050,380.0002 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 72 0 01 0 73 1225,~~464,783~~757.4597 0.00 0327,566.0096 0.00 1553,~~464,783~~324.4593 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 61.~~493506~~369863% 0.000000% 0.000000% 0.000000% 61.~~493506~~369863% 61.~~530613~~098545% 0.000000% 0.000000% 0.000000% 61.~~530613~~098545% 60 Days 10.~~298701~~000000% 0.000000% 0.000000% 0.000000% 10.~~298701~~000000% 10.~~968293~~000000% 0.000000% 0.000000% 0.000000% 10.~~968293~~000000% 90 Days 10.~~298701~~000000% 0.000000% 01.~~000000~~369863% 0.000000% 1.~~298701~~369863% 0.~~302725~~000000% 0.000000% 02.~~000000~~051837% 0.000000% 02.~~302725~~051837% 120 Days 01.~~000000~~369863% 0.000000% 0.000000% 0.000000% 01.~~000000~~369863% 0.~~000000~~315574% 0.000000% 0.000000% 0.000000% 0.~~000000~~315574% 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 92.~~090909~~739726% 0.000000% 01.~~000000~~369863% 0.000000% 94.~~090909~~109589% 81.~~801631~~414119% 0.000000% 02.~~000000~~051837% 0.000000% 83.~~801631~~465955% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 2 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 43 0 0 0 43 ~~462~~528,~~066~~639.7350 0.00 0.00 0.00 ~~462~~528,~~066~~639.7350 60 Days 1 0 0 0 1 ~~122~~92,~~276~~264.3362 0.00 0.00 0.00 ~~122~~92,~~276~~264.3362 90 Days 01 0 0 0 01 0122,276.0033 0.00 0.00 0.00 0122,276.0033 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 1 0 0 1 0.00 ~~0.00~~ 80,855.64 0.00 0.00 80,855.64 Totals 5 0 1 0 0 6 ~~584~~743,~~343~~180.0645 ~~0.00~~ 80,855.64 0.00 ~~665~~0.00 824,~~198~~036.7009 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 1412.~~285714~~000000% 0.000000% 0.000000% 0.000000% 1412.~~285714~~000000% 1114.~~306324~~948251% 0.000000% 0.000000% 0.000000% 1114.~~306324~~948251% 60 Days 34.~~571429~~000000% 0.000000% 0.000000% 0.000000% 34.~~571429~~000000% 2.~~991983~~608951% 0.000000% 0.000000% 0.000000% 2.~~991983~~608951% 90 Days 04.000000% 0.000000% 0.000000% 0.000000% 04.000000% 03.~~000000~~457587% 0.000000% 0.000000% 0.000000% 03.~~000000~~457587% 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% 04.000000% 30.~~571429~~000000% 0.000000% 34.~~571429~~000000% 0.000000% 02.~~000000~~286341% 10.~~978459~~000000% 0.000000% 12.~~978459~~286341% Totals 1720.~~857143~~000000% 04.000000% 30.~~571429~~000000% 0.000000% 24.000000% 21.~~428571~~014790% 142.~~298306~~286341% 0.000000% ~~1.978459%~~ 0.000000% 1623.~~276765~~301132%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 128,~~569~~301.0985

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 22,018,651.00 21.52894269% 76,~~104~~432,~~828~~945.3796 3433.~~36566122~~07076628% 6566.~~634339~~929234% 81.715878% Class 2A 4,602,551.00 4.50018744% 3,~~798~~572,~~807~~825.2000 18.~~37461997~~36733299% 1514.~~991041~~703433% 1514.~~912283~~636821% Class R-I 4,602,501.00 4.50013855% 3,~~798~~572,~~807~~825.2000 18.~~37461997~~36733299% 0.000000% 0.000000% Class R-II 4,602,451.00 4.50008967% 3,~~798~~572,~~807~~825.2000 18.~~37461997~~36733299% 0.000000% 0.000000% Class B-1 3,324,051.00 3.25012207% 2,~~617~~461,~~288~~592.8139 12.~~65968098~~65466042% 5.~~714939~~712673% 5.686792% Class B-2 2,301,251.00 2.25006977% 1,~~672~~572,~~000~~536.1676 8.~~08737214~~08416486% 4.~~572309~~570496% 4.549789% Class B-3 1,534,251.00 1.50012832% ~~963~~905,~~126~~831.0996 4.~~65858754~~65674004% 3.~~428785~~427425% 3.411897% Class B-4 664,851.00 0.65006431% ~~159~~150,~~612~~117.2529 0.~~77203561~~77172944% 3.~~886552~~885011% 3.867410% Class B-5 358,051.00 0.35008773% 0.00 0.00000000% 0.~~772036~~771729% 0.768233% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.000000% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description Mixed ARM Weighted Average Gross Coupon 4.~~255974~~274609% Weighted Average Net Coupon 3.~~949671~~968567% Weighted Average Pass-Through Rate 3.~~946081~~964966% Weighted Average Maturity(Stepdown Calculation ) ~~319~~318 Beginning Scheduled Collateral Loan Count ~~106~~105 Number Of Loans Paid In Full 17 Ending Scheduled Collateral Loan Count ~~105~~98 Beginning Scheduled Collateral Balance 20,~~797~~674,~~995~~208.3926 Ending Scheduled Collateral Balance 2019,~~674~~452,~~208~~062.2600 Ending Actual Collateral Balance at 3031-~~Jun~~Jul-2004 2019,~~728~~501,~~981~~035.8111 Monthly P &I Constant ~~124~~123,~~227~~449.6369 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 477,510.18 Class A Optimal Amount ~~156~~1,~~920~~051,918.0187 Ending Scheduled Balance for Premium Loans 2019,~~674~~452,~~208~~062.2600 Scheduled Principal 5049,~~464~~804.5256 Unscheduled Principal 731,~~322~~172,341.6170

Group Level Collateral Statement Group 1 2 Total Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average Coupon Rate 4.~~184707~~195068 4.~~547925~~599241 4.~~255974~~274609 Weighted Average Net Rate 3.~~896309~~907064 4.~~168271~~219582 3.~~949671~~968567 Weighted Average Maturity ~~279~~278 ~~230~~229 ~~319~~318 Beginning Loan Count 7877 28 ~~106~~105 Loans Paid In Full 14 03 17 Ending Loan Count 7773 2825 ~~105~~98 Beginning Scheduled Balance 16,~~717~~605,~~192~~560.1581 4,~~080~~068,~~803~~647.2445 20,~~797~~674,~~995~~208.3926 Ending scheduled Balance 1615,~~605~~932,~~560~~174.8111 43,~~068~~519,~~647~~887.4589 2019,~~674~~452,~~208~~062.2600 Record Date 0607/3031/2004 0607/3031/2004 0607/3031/2004 Principal And Interest Constant 9796,~~634~~753.4907 26,~~593~~696.1462 ~~124~~123,~~227~~449.6369 Scheduled Principal 3938,~~337~~701.3785 11,~~127~~102.1571 5049,~~464~~804.5256 Unscheduled Principal 72634,~~293~~684.9785 1537,~~028~~656.6485 731,~~322~~172,341.6170 Scheduled Interest 58,~~297~~051.1222 15,~~465~~593.9991 73,~~763~~645.1113 Servicing Fees 43,~~017~~985.6639 1,~~291~~287.0825 5,~~308~~272.7464 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 35.9380 26.3023 62.2303 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 54,~~243~~030.5303 14,~~148~~280.6143 68,~~392~~310.1446 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 477,510.18 0.00 477,510.18 Percentage of Cumulative Losses 0.5682 0.0000 0.4669 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 3.~~893730~~904476 4.~~160535~~211846 3.~~946081~~964966

Filing Compare · BEAR STEARNS ARM TRUST MORTGAGE PASS-THRO CERT SERIES 2001-4