8-K 1 bst03004.txt DECEMBER 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): December 26, 2003 BEAR STEARNS ARM TRUST Mortgage Pass-Through Certificates, Series 2003-4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 033-44658-32 54-2120395 Pooling and Servicing Agreement) (Commission 54-2120396 (State or other File Number) 54-2120397 jurisdiction IRS EIN 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 December 26, 2003 a distribution was made to holders of BEAR STEARNS ARM TRUST, Mortgage Pass-Through Certificates, Series 2003-4 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 2003-4 Trust, relating to the December 26, 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. BEAR STEARNS ARM TRUST Mortgage Pass-Through Certificates, Series 2003-4 Trust By: Wells Fargo Bank Minnesota, N.A. as Securities Administrator By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 12/30/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-4 Trust, relating to the December 26, 2003 distribution. EX-99.1

Bear Stearns ARM Trust Mortgage Pass-Through Certificates Record Date: 911/30/03 Distribution Date: 1012/2726/03 BST Series: 2003-4 Contact: CTSLink Customer Service Wells Fargo Bank Minnesota, N.A. Corporate Trust Services 9062 Old Annapolis Road Columbia, MD 21045-1951 Telephone: (301) 815-6600 Fax: (301) 815-6600 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution I-A-1 07384MVM1 SEN 4.~~31519~~24841% 4437,~~575~~590,~~217~~786.0079 ~~160~~133,~~255~~084.8506 5205,~~184,022~~141.0352 I-X-A-1 07384MVN9 SEN 0.17600% 0.00 65,~~536~~513.2232 0.00 II-A-1 07384MVP4 SEN 4.~~70254~~69571% ~~216~~209,~~798~~950,~~995~~063.7469 ~~849~~821,~~396~~553.1844 32,~~142~~031,~~634~~461.8921 II-X-A-1 07384MVQ2 SEN 0.26600% 0.00 4846,~~046~~538.2393 0.00 III-A-1 07384MVR0 SEN 4.~~99744~~99110% ~~214~~207,~~627~~914,~~034~~849.1083 ~~893~~864,~~618~~770.5416 41,~~646~~568,~~611~~313.9325 III-X-A-1 07384MVS8 SEN 0.22400% 0.00 4038,~~054~~810.6477 0.00 R-I 07384MVT6 SEN 4.~~51109~~51139% 0.00 0.00 0.00 R-II 07384MVU3 SEN 4.~~51109~~51139% 0.00 0.00 0.00 R-III 07384MVV1 SEN 4.~~51109~~51139% 0.00 0.00 0.00 B-1 07384MVW9 SUB 5.~~04195~~03000% 5,~~960~~952,~~928~~729.5570 2524,~~039~~951.9288 4,~~075~~145.9489 B-2 07384MVX7 SUB 5.~~04195~~03000% 4,~~541~~535,~~555~~308.3777 19,~~077~~010.6052 3,~~105~~158.4170 B-3 07384MVY5 SUB 5.~~04195~~03000% 3,~~122~~118,~~481~~186.3862 13,~~116~~070.5341 2,~~135~~171.0872 B-4 07384MVZ2 SUB 5.~~04195~~03000% 1,~~419~~417,~~273~~321.4534 5,~~961~~940.9194 ~~970~~987.4712 B-5 07384MWA6 SUB 5.~~04195~~03000% ~~851~~850,~~504~~333.2305 3,~~576~~564.8932 ~~582~~592.2423 B-6 07384MWB4 SUB 5.~~04195~~03000% 1,~~135~~134,~~584~~022.3240 4,~~770~~753.2245 ~~776~~789.4981 Totals ~~493~~472,~~032~~463,~~574~~602.1419 21,~~069~~981,~~450~~562.7320 123,~~984~~816,~~914~~761.4845

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses I-A-1 0.00 3937,~~391~~385,~~194~~645.9828 5338,~~344,277~~225.8858 0.00 I-X-A-1 0.00 0.00 65,~~536~~513.2232 0.00 II-A-1 0.00 ~~213~~207,~~656~~918,~~360~~602.8548 32,~~992~~853,~~031~~014.0765 0.00 II-X-A-1 0.00 0.00 4846,~~046~~538.2393 0.00 III-A-1 0.00 ~~209~~206,~~980~~346,~~422~~536.1659 52,~~540~~433,~~230~~083.4741 0.00 III-X-A-1 0.00 0.00 4038,~~054~~810.6477 0.00 R-I 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 R-III 0.00 0.00 0.00 0.00 B-1 0.00 5,~~956~~948,~~852~~583.6181 29,~~115~~097.8677 0.00 B-2 0.00 4,~~538~~532,~~449~~150.9607 22,~~183~~169.0122 0.00 B-3 0.00 3,~~120~~116,~~346~~014.3090 15,~~251~~242.6113 0.00 B-4 0.00 1,~~418~~416,~~302~~334.9922 6,~~932~~928.3806 0.00 B-5 0.00 ~~850~~849,~~921~~740.9982 4,~~159~~156.1355 0.00 B-6 0.00 1,~~134~~133,~~807~~232.8359 5,~~546~~543.7126 0.00 Totals 0.00 ~~480~~468,~~047~~646,~~659~~840.6776 155,~~054~~798,~~365~~323.2165 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) I-A-1 50,011,600.00 4437,~~575~~590,~~217~~786.0079 5245,~~179~~019.5234 5160,~~131,842~~122.5118 0.00 0.00 I-X-A-1 0.00 0.00 0.00 0.00 0.00 0.00 II-A-1 247,776,800.00 ~~216~~209,~~798~~950,~~995~~063.7469 ~~155~~152,~~891~~510.4266 21,~~986~~878,~~743~~950.4755 0.00 0.00 II-X-A-1 0.00 0.00 0.00 0.00 0.00 0.00 III-A-1 254,370,500.00 ~~214~~207,~~627~~914,~~034~~849.1083 118,~~891~~335.6533 41,~~527~~449,~~720~~977.2892 0.00 0.00 III-X-A-1 0.00 0.00 0.00 0.00 0.00 0.00 R-I 100.00 0.00 0.00 0.00 0.00 0.00 R-II 50.00 0.00 0.00 0.00 0.00 0.00 R-III 50.00 0.00 0.00 0.00 0.00 0.00 B-1 5,977,000.00 5,~~960~~952,~~928~~729.5570 4,~~075~~145.9489 0.00 0.00 0.00 B-2 4,553,800.00 4,~~541~~535,~~555~~308.3777 3,~~105~~158.4170 0.00 0.00 0.00 B-3 3,130,900.00 3,~~122~~118,~~481~~186.3862 2,~~135~~171.0872 0.00 0.00 0.00 B-4 1,423,100.00 1,~~419~~417,~~273~~321.4534 ~~970~~987.4712 0.00 0.00 0.00 B-5 853,800.00 ~~851~~850,~~504~~333.2305 ~~582~~592.2423 0.00 0.00 0.00 B-6 1,138,646.00 1,~~135~~134,~~584~~022.3240 ~~776~~789.4981 0.00 0.00 0.00 Totals 569,236,346.00 ~~493~~472,~~032~~463,~~574~~602.1419 ~~338~~327,~~608~~710.2280 123,~~646~~489,~~306~~050.2665 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-1 5205,~~184,022~~141.0352 3937,~~391~~385,~~194~~645.9828 0.~~78764117~~74753948 5205,~~184,022~~141.0352 I-X-A-1 0.00 0.00 0.00000000 0.00 II-A-1 32,~~142~~031,~~634~~461.8921 ~~213~~207,~~656~~918,~~360~~602.8548 0.~~86229365~~83913668 32,~~142~~031,~~634~~461.8921 II-X-A-1 0.00 0.00 0.00000000 0.00 III-A-1 41,~~646~~568,~~611~~313.9325 ~~209~~206,~~980~~346,~~422~~536.1659 0.~~82549046~~81120467 41,~~646~~568,~~611~~313.9325 III-X-A-1 0.00 0.00 0.00000000 0.00 R-I 0.00 0.00 0.00000000 0.00 R-II 0.00 0.00 0.00000000 0.00 R-III 0.00 0.00 0.00000000 0.00 B-1 4,~~075~~145.9489 5,~~956~~948,~~852~~583.6181 0.~~99662918~~99524574 4,~~075~~145.9489 B-2 3,~~105~~158.4170 4,~~538~~532,~~449~~150.9607 0.~~99662918~~99524574 3,~~105~~158.4170 B-3 2,~~135~~171.0872 3,~~120~~116,~~346~~014.3090 0.~~99662918~~99524574 2,~~135~~171.0872 B-4 ~~970~~987.4712 1,~~418~~416,~~302~~334.9922 0.~~99662918~~99524575 ~~970~~987.4712 B-5 ~~582~~592.2423 ~~850~~849,~~921~~740.9982 0.~~99662918~~99524575 ~~582~~592.2423 B-6 ~~776~~789.4981 1,~~134~~133,~~807~~232.8359 0.~~99662918~~99524575 ~~776~~789.4981 Totals 123,~~984~~816,~~914~~761.4845 ~~480~~468,~~047~~646,~~659~~840.6776 0.~~84331871~~82329044 123,~~984~~816,~~914~~761.4845

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion I-A-1 50,011,600.00 ~~891~~751.~~29755897~~64135501 10.~~04334834~~90017796 ~~102~~3.~~61304397~~20170081 0.00000000 I-X-A-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 II-A-1 247,776,800.00 ~~874~~847.~~97697823~~33543936 0.~~62916068~~61551630 127.~~05416920~~58323842 0.00000000 II-X-A-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 III-A-1 254,370,500.00 ~~843~~817.~~75756662~~37013463 0.~~46739559~~46520854 175.~~79970665~~70025974 0.00000000 III-X-A-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-I 100.00 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 0.00000000 0.00000000 0.00000000 0.00000000 R-III 50.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 5,977,000.00 ~~997~~995.~~31111762~~93938431 0.~~68193743~~69364062 0.00000000 0.00000000 B-2 4,553,800.00 ~~997~~995.~~31111819~~93938469 0.~~68193816~~69364048 0.00000000 0.00000000 B-3 3,130,900.00 ~~997~~995.~~31111821~~93938484 0.~~68193810~~69364081 0.00000000 0.00000000 B-4 1,423,100.00 ~~997~~995.~~31111658~~93938585 0.~~68194083~~69364064 0.00000000 0.00000000 B-5 853,800.00 ~~997~~995.~~31111502~~93938862 0.~~68193956~~69364020 0.00000000 0.00000000 B-6 1,138,646.00 ~~997~~995.~~31112216~~93938766 0.~~68194153~~69363964 0.00000000 0.00000000

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution I-A-1 0.00000000 ~~103~~4.~~65639232~~10187876 ~~787~~747.~~64116685~~53947644 0.~~78764117~~74753948 ~~103~~4.~~65639232~~10187876 I-X-A-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 II-A-1 0.00000000 128.~~68332988~~19875473 ~~862~~839.~~29364836~~13668463 0.~~86229365~~83913668 128.~~68332988~~19875473 II-X-A-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 III-A-1 0.00000000 186.~~26710224~~16546828 ~~825~~811.~~49046434~~20466638 0.~~82549046~~81120467 186.~~26710224~~16546828 III-X-A-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-III 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 0.~~68193743~~69364062 ~~996~~995.~~62918019~~24574368 0.~~99662918~~99524574 0.~~68193743~~69364062 B-2 0.00000000 0.~~68193816~~69364048 ~~996~~995.~~62918003~~24574421 0.~~99662918~~99524574 0.~~68193816~~69364048 B-3 0.00000000 0.~~68193810~~69364081 ~~996~~995.~~62918011~~24574404 0.~~99662918~~99524574 0.~~68193810~~69364081 B-4 0.00000000 0.~~68194083~~69364064 ~~996~~995.~~62918277~~24574520 0.~~99662918~~99524575 0.~~68194083~~69364064 B-5 0.00000000 0.~~68193956~~69364020 ~~996~~995.~~62917545~~24574842 0.~~99662918~~99524575 0.~~68193956~~69364020 B-6 0.00000000 0.~~68194153~~69363964 ~~996~~995.~~62918062~~24574802 0.~~99662918~~99524575 0.~~68194153~~69363964 (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-1 50,011,600.00 4.~~31519~~24841% 4437,~~575~~590,~~217~~786.0079 ~~160~~133,~~292~~084.1306 0.00 0.00 I-X-A-1 0.00 0.17600% 4437,~~575~~590,~~217~~786.0079 65,~~537~~513.7032 0.00 0.00 II-A-1 247,776,800.00 4.~~70254~~69571% ~~216~~209,~~798~~950,~~995~~063.7469 ~~849~~821,~~588~~553.4744 0.00 0.00 II-X-A-1 0.00 0.26600% ~~216~~209,~~798~~950,~~995~~063.7469 4846,~~057~~538.1193 0.00 0.00 III-A-1 254,370,500.00 4.~~99744~~99110% ~~214~~207,~~627~~914,~~034~~849.1083 ~~893~~864,~~820~~770.8516 0.00 0.00 III-X-A-1 0.00 0.22400% ~~214~~207,~~627~~914,~~034~~849.1083 4038,~~063~~810.7177 0.00 0.00 R-I 100.00 4.~~51109~~51139% 0.00 0.00 0.00 0.00 R-II 50.00 4.~~51109~~51139% 0.00 0.00 0.00 0.00 R-III 50.00 4.~~51109~~51139% 0.00 0.00 0.00 0.00 B-1 5,977,000.00 5.~~04195~~03000% 5,~~960~~952,~~928~~729.5570 2524,~~045~~951.5988 0.00 0.00 B-2 4,553,800.00 5.~~04195~~03000% 4,~~541~~535,~~555~~308.3777 19,~~081~~010.9252 0.00 0.00 B-3 3,130,900.00 5.~~04195~~03000% 3,~~122~~118,~~481~~186.3862 13,~~119~~070.5041 0.00 0.00 B-4 1,423,100.00 5.~~04195~~03000% 1,~~419~~417,~~273~~321.4534 5,~~963~~940.2694 0.00 0.00 B-5 853,800.00 5.~~04195~~03000% ~~851~~850,~~504~~333.2305 3,~~577~~564.7032 0.00 0.00 B-6 1,138,646.00 5.~~04195~~03000% 1,~~135~~134,~~584~~022.3240 4,~~771~~753.3045 0.00 0.00 Totals 569,236,346.00 21,~~069~~981,~~919~~562.2420 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-1 360.2800 0.00 ~~160~~133,~~255~~084.8506 0.00 3937,~~391~~385,~~194~~645.9828 I-X-A-1 10.4800 0.00 65,~~536~~513.2232 0.00 3937,~~391~~385,~~194~~645.9828 II-A-1 ~~192~~0.3000 0.00 ~~849~~821,~~396~~553.1844 0.00 ~~213~~207,~~656~~918,~~360~~602.8548 II-X-A-1 100.8800 0.00 4846,~~046~~538.2393 0.00 ~~213~~207,~~656~~918,~~360~~602.8548 III-A-1 ~~202~~0.3100 0.00 ~~893~~864,~~618~~770.5416 0.00 ~~209~~206,~~980~~346,~~422~~536.1659 III-X-A-1 90.0700 0.00 4038,~~054~~810.6477 0.00 ~~209~~206,~~980~~346,~~422~~536.1659 R-I 0.00 0.00 0.00 0.00 0.00 R-II 0.00 0.00 0.00 0.00 0.00 R-III 0.00 0.00 0.00 0.00 0.00 B-1 50.6700 0.00 2524,~~039~~951.9288 0.00 5,~~956~~948,~~852~~583.6181 B-2 40.3200 0.00 19,~~077~~010.6052 0.00 4,~~538~~532,~~449~~150.9607 B-3 20.9700 0.00 13,~~116~~070.5341 0.00 3,~~120~~116,~~346~~014.3090 B-4 10.3500 0.00 5,~~961~~940.9194 0.00 1,~~418~~416,~~302~~334.9922 B-5 0.8100 0.00 3,~~576~~564.8932 0.00 ~~850~~849,~~921~~740.9982 B-6 10.0800 0.00 4,~~770~~753.2245 0.00 1,~~134~~133,~~807~~232.8359 Totals ~~468~~0.5200 0.00 21,~~069~~981,~~450~~562.7320 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-1 50,011,600.00 4.~~31519~~24841% ~~891~~751.~~29755897~~64135501 32.~~20509902~~66106383 0.00000000 0.00000000 I-X-A-1 0.00 0.17600% ~~891~~751.~~29755897~~64135501 0.~~13072367~~11024082 0.00000000 0.00000000 II-A-1 247,776,800.00 4.~~70254~~69571% ~~874~~847.~~97697823~~33543936 3.~~42884592~~31569961 0.00000000 0.00000000 II-X-A-1 0.00 0.26600% ~~874~~847.~~97697823~~33543936 0.~~19395323~~18782602 0.00000000 0.00000000 III-A-1 254,370,500.00 4.~~99744~~99110% ~~843~~817.~~75756662~~37013463 3.~~51385420~~39964799 0.00000000 0.00000000 III-X-A-1 0.00 0.22400% ~~843~~817.~~75756662~~37013463 0.~~15750140~~15257575 0.00000000 0.00000000 R-I 100.00 4.~~51109~~51139% 0.00000000 0.00000000 0.00000000 0.00000000 R-II 50.00 4.~~51109~~51139% 0.00000000 0.00000000 0.00000000 0.00000000 R-III 50.00 4.~~51109~~51139% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 5,977,000.00 5.~~04195~~03000% ~~997~~995.~~31111762~~93938431 4.~~19032792~~17464949 0.00000000 0.00000000 B-2 4,553,800.00 5.~~04195~~03000% ~~997~~995.~~31111819~~93938469 4.~~19032896~~17464974 0.00000000 0.00000000 B-3 3,130,900.00 5.~~04195~~03000% ~~997~~995.~~31111821~~93938484 4.~~19032866~~17464946 0.00000000 0.00000000 B-4 1,423,100.00 5.~~04195~~03000% ~~997~~995.~~31111658~~93938585 4.~~19033097~~17464690 0.00000000 0.00000000 B-5 853,800.00 5.~~04195~~03000% ~~997~~995.~~31111502~~93938862 4.~~19032560~~17465449 0.00000000 0.00000000 B-6 1,138,646.00 5.~~04195~~03000% ~~997~~995.~~31112216~~93938766 4.~~19032781~~17465130 0.00000000 0.00000000 (5) Per $1 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-1 0.~~00072543~~00000000 0.00000000 32.~~20437359~~66106383 0.00000000 ~~787~~747.~~64116685~~53947644 I-X-A-1 0.~~00002959~~00000000 0.00000000 0.~~13069408~~11024082 0.00000000 ~~787~~747.~~64116685~~53947644 II-A-1 0.~~00077610~~00000000 0.00000000 3.~~42806986~~31569961 0.00000000 ~~862~~839.~~29364836~~13668463 II-X-A-1 0.~~00004391~~00000000 0.00000000 0.~~19390932~~18782602 0.00000000 ~~862~~839.~~29364836~~13668463 III-A-1 0.~~00079534~~00000000 0.00000000 3.~~51305886~~39964799 0.00000000 ~~825~~811.~~49046434~~20466638 III-X-A-1 0.~~00003566~~00000000 0.00000000 0.~~15746574~~15257575 0.00000000 ~~825~~811.~~49046434~~20466638 R-I 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-II 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-III 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.~~00094864~~00000000 0.00000000 4.~~18937929~~17464949 0.00000000 ~~996~~995.~~62918019~~24574368 B-2 0.~~00094866~~00000000 0.00000000 4.~~18938030~~17464974 0.00000000 ~~996~~995.~~62918003~~24574421 B-3 0.~~00094861~~00000000 0.00000000 4.~~18938005~~17464946 0.00000000 ~~996~~995.~~62918011~~24574404 B-4 0.~~00094863~~00000000 0.00000000 4.~~18938233~~17464690 0.00000000 ~~996~~995.~~62918277~~24574520 B-5 0.~~00094870~~00000000 0.00000000 4.~~18937690~~17465449 0.00000000 ~~996~~995.~~62917545~~24574842 B-6 0.~~00094849~~00000000 0.00000000 4.~~18937932~~17465130 0.00000000 ~~996~~995.~~62918062~~24574802 (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 155,~~173~~914,~~397~~986.5177 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 1912,~~336~~547.6469 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 155,~~192~~927,~~734~~534.1546 Withdrawals Reimbursement for Servicer Advances 2218,~~118~~084.9153 Payment of Service Fee ~~116~~111,~~250~~126.0428 Payment of Interest and Principal 155,~~054~~798,~~365~~323.2065 Total Withdrawals (Pool Distribution Amount) 155,~~192~~927,~~734~~534.1546 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 ~~468~~0.5200

SERVICING FEES Gross Servicing Fee ~~115~~110,~~759~~676.6772 Miscellaneous Fee ~~490~~449.3756 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~116~~111,~~250~~126.0428

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 86 0 0 0 86 42,~~204~~213,~~702~~290.8301 0.00 0.00 0.00 42,~~204~~213,~~702~~290.8301 60 Days 01 0 0 0 01 0348,307.0026 0.00 0.00 0.00 0348,307.0026 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 87 0 0 0 87 42,~~204~~561,~~702~~597.8327 0.00 0.00 0.00 42,~~204~~561,~~702~~597.8327 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.~~788177~~606061% 0.000000% 0.000000% 0.000000% 0.~~788177~~606061% 0.~~875411~~472011% 0.000000% 0.000000% 0.000000% 0.~~875411~~472011% 60 Days 0.~~000000~~101010% 0.000000% 0.000000% 0.000000% 0.~~000000~~101010% 0.~~000000~~074281% 0.000000% 0.000000% 0.000000% 0.~~000000~~074281% 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.~~788177~~707071% 0.000000% 0.000000% 0.000000% 0.~~788177~~707071% 0.~~875411~~546292% 0.000000% 0.000000% 0.000000% 0.~~875411~~546292%

Delinquency Status By Groups

DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 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 12 0 0 0 12 ~~346~~578,~~028~~419.5006 0.00 0.00 0.00 ~~346~~578,~~028~~419.5006 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 12 0 0 0 12 ~~346~~578,~~028~~419.5006 0.00 0.00 0.00 ~~346~~578,~~028~~419.5006 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 12.~~020408~~150538% 0.000000% 0.000000% 0.000000% 12.~~020408~~150538% 01.~~844708~~484738% 0.000000% 0.000000% 0.000000% 01.~~844708~~484738% 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 12.~~020408~~150538% 0.000000% 0.000000% 0.000000% 12.~~020408~~150538% 01.~~844708~~484738% 0.000000% 0.000000% 0.000000% 01.~~844708~~484738% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 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 32 0 0 0 32 1930,~~424,415~~856.9378 0.00 0.00 0.00 1930,~~424,415~~856.9378 60 Days 01 0 0 0 01 0348,307.0026 0.00 0.00 0.00 0348,307.0026 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 3 0 0 0 3 1,~~424~~279,~~415~~164.9304 0.00 0.00 0.00 1,~~424~~279,~~415~~164.9304 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 0.~~638298~~436681% 0.000000% 0.000000% 0.000000% 0.~~638298~~436681% 0.~~643303~~431617% 0.000000% 0.000000% 0.000000% 0.~~643303~~431617% 60 Days 0.~~000000~~218341% 0.000000% 0.000000% 0.000000% 0.~~000000~~218341% 0.~~000000~~161502% 0.000000% 0.000000% 0.000000% 0.~~000000~~161502% 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.~~638298~~655022% 0.000000% 0.000000% 0.000000% 0.~~638298~~655022% 0.~~643303~~593119% 0.000000% 0.000000% 0.000000% 0.~~643303~~593119% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 3 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 42 0 0 0 4 2 704,~~434,258~~014.4017 0.00 0.00 0.00 2704,~~434,258~~014.4017 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 42 0 0 0 4 2 704,~~434,258~~014.4017 0.00 0.00 0.00 2704,~~434,258~~014.4017 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 0.~~894855~~455581% 0.000000% 0.000000% 0.000000% 0.~~894855~~455581% 10.~~117014~~328546% 0.000000% 0.000000% 0.000000% 10.~~117014~~328546% 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.~~894855~~455581% 0.000000% 0.000000% 0.000000% 0.~~894855~~455581% 10.~~117014~~328546% 0.000000% 0.000000% 0.000000% 10.~~117014~~328546%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 1912,~~336~~547.6469

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 519,224,746.00 91.21426445% ~~440~~431,~~656~~261,~~464~~195.6948 9192.~~79431575~~02264003% 96.~~454585~~373376% 0.000000% Class R-I 519,224,646.00 91.21424689% ~~440~~431,~~656~~261,~~464~~195.6948 9192.~~79431575~~02264003% 0.000000% 0.000000% Class R-II 519,224,596.00 91.21423810% ~~440~~431,~~656~~261,~~464~~195.6948 9192.~~79431575~~02264003% 0.000000% 0.000000% Class R-III 519,224,546.00 91.21422932% ~~440~~431,~~656~~261,~~464~~195.6948 9192.~~79431575~~02264003% 0.000000% 0.000000% Class 2A1 271,447,746.00 47.68629901% ~~227~~223,~~000~~342,~~103~~593.8400 47.~~28699311~~65690782% 44.~~507323~~365732% 1,~~255~~223.~~348748~~334387% Class B-1 11,100,246.00 1.95002411% 11,~~062~~047,~~829~~472.0760 2.~~30452724~~35731293% 1.~~240888~~269311% 34.999789% Class B-2 6,546,446.00 1.15004006% 6,~~524~~515,~~379~~322.1153 1.~~35911070~~39024143% 0.~~945417~~967072% 26.665892% Class B-3 3,415,546.00 0.60002247% 3,~~404~~399,~~032~~307.8163 0.~~70910309~~72534526% 0.~~650008~~664896% 18.333752% Class B-4 1,992,446.00 0.35002087% 1,~~985~~982,~~729~~973.8241 0.~~41365264~~42312745% 0.~~295450~~302218% 8.333311% Class B-5 1,138,646.00 0.20003045% 1,~~134~~133,~~807~~232.8359 0.~~23639483~~24180950% 0.~~177258~~181318% 4.999635% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~236395~~241810% 6.667621% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description Mixed ARM Weighted Average Gross Coupon 5.~~320633~~315174% Weighted Average Net Coupon 5.~~038884~~034068% Weighted Average Pass-Through Rate 5.~~037690~~032927% Weighted Average Maturity(Stepdown Calculation ) ~~354~~352 Beginning Scheduled Collateral Loan Count ~~1,044~~998 Number Of Loans Paid In Full 298 Ending Scheduled Collateral Loan Count ~~1,015~~990 Beginning Scheduled Collateral Balance ~~493~~472,~~032~~463,~~574~~602.3741 Ending Scheduled Collateral Balance ~~480~~468,~~047~~646,~~659~~840.9097 Ending Actual Collateral Balance at 30-~~Sep~~Nov-2003 ~~480~~468,~~311~~906,~~928~~590.5589 Monthly P &I Constant 2,~~524~~420,~~646~~399.1228 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 145,~~971~~715,~~628~~186.8266 Ending Scheduled Balance for Premium Loans ~~480~~468,~~047~~646,~~659~~840.9097 Scheduled Principal ~~338~~327,~~608~~710.2179 Unscheduled Principal 123,~~646~~489,~~306~~050.2665

Miscellaneous Reporting Senior Percentage Group 1 96.~~661078~~073980% Senior Percentage Group 2 96.~~595328~~493055% Senior Percentage Group 3 96.~~471492~~365646% Senior Prepayment Percentage Group 1 100.000000% Senior Prepayment Percentage Group 2 100.000000% Senior Prepayment Percentage Group 3 100.000000% Subordinate Percentage Group 1 3.~~338922~~926020% Subordinate Percentage Group 2 3.~~404672~~506945% Subordinate Percentage Group 3 3.~~528508~~634354% Subordinate Prepay Percent Group 1 0.000000% Subordinate Prepay Percent Group 2 0.000000% Subordinate Prepay Percent Group 3 0.000000% Average Loss Severity Group 1 0.00 Average Loss Severity Group 2 0.00 Average Loss Severity Group 3 0.00

Group Level Collateral Statement Group Group 1 Group 2 Group 3 Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average Coupon Rate 4.~~836227~~776752 5.~~248778~~242369 5.~~493530~~486236 Weighted Average Net Rate 4.~~487772~~424405 4.~~970950~~964187 5.~~221652~~215102 Weighted Average Maturity ~~355~~353 ~~355~~353 ~~356~~354 Beginning Loan Count ~~109~~94 ~~477~~462 ~~458~~442 Loans Paid In Full 111 74 113 Ending Loan Count 9893 ~~470~~458 ~~447~~439 Beginning Scheduled Balance 4639,~~114~~126,~~959~~917.6432 ~~224~~217,~~440~~580,~~457~~491.0423 ~~222~~215,~~477~~756,~~157~~193.6986 Ending scheduled Balance 4038,~~929~~919,~~135~~936.2011 ~~221~~215,~~292~~543,~~327~~487.4817 ~~217~~214,~~826~~183,~~197~~417.2269 Record Date 0911/30/2003 0911/30/2003 0911/30/2003 Principal And Interest Constant ~~239~~202,~~833~~608.9467 1,~~143~~108,~~084~~584.5647 1,~~141~~109,~~727~~206.6214 Scheduled Principal 5346,~~981~~859.9303 ~~161~~158,~~386~~053.0951 ~~123~~122,~~240~~798.1925 Unscheduled Principal 5160,~~131,842~~122.5118 21,~~986~~878,~~743~~950.4755 41,~~527~~449,~~720~~977.2892 Scheduled Interest ~~185~~155,~~852~~749.0164 ~~981~~950,~~698~~530.4796 1986,~~018,487~~407.4389 Servicing Fees 1311,~~390~~488.8154 5150,~~963~~439.3107 5048,~~405~~749.5511 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 ~~450~~449.4956 390.8800 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 ~~172~~144,~~461~~261.2010 ~~929~~899,~~284~~642.6733 ~~968~~937,~~042~~658.0078 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.000000 0.000000 0.000000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 4.~~487772~~424405 4.~~968541~~961708 5.~~221437~~215102

Group Level Collateral Statement Group Total Collateral Description Mixed ARM Weighted Average Coupon Rate 5.~~320633~~315174 Weighted Average Net Rate 5.~~038884~~034068 Weighted Average Maturity ~~354~~352 Beginning Loan Count ~~1,044~~998 Loans Paid In Full 298 Ending Loan Count ~~1,015~~990 Beginning Scheduled Balance ~~493~~472,~~032~~463,~~574~~602.3741 Ending scheduled Balance ~~480~~468,~~047~~646,~~659~~840.9097 Record Date 0911/30/2003 Principal And Interest Constant 2,~~524~~420,~~646~~399.1228 Scheduled Principal ~~338~~327,~~608~~710.2179 Unscheduled Principal 123,~~646~~489,~~306~~050.2665 Scheduled Interest 2,~~186~~092,~~037~~688.9149 Servicing Fees ~~115~~110,~~759~~676.6772 Master Servicing Fees 0.00 Trustee Fee 0.00 FRY Amount 0.00 Special Hazard Fee 0.00 Other Fee ~~490~~449.3756 Pool Insurance Fee 0.00 Spread Fee 1 0.00 Spread Fee 2 0.00 Spread Fee 3 0.00 Net Interest 21,~~069~~981,~~787~~562.8721 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Percentage of Cumulative Losses 0.000000 Prepayment Penalties 0.00 Special Servicing Fee 0.00 Pass-Through Rate 5.~~037690~~032927

Filing Compare · BEAR STEARNS ARM TRUST 2003-4