8-K 1 mst04004_10508.txt 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, 2005 MASTR ASSET SECURITIZATION TRUST Mortgage Pass-Through Certificates, Series 2004-4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-106982-23 54-2147380 Pooling and Servicing Agreement) (Commission 54-2147381 (State or other File Number) 54-2147382 jurisdiction IRS EIN 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, 2005 a distribution was made to holders of MASTR ASSET SECURITIZATION TRUST, Mortgage Pass-Through Certificates, Series 2004-4 Trust. (Group 2, 3, and Subordinate Certificates) On August 26, 2005 a distribution was made to holders of MASTR ASSET SECURITIZATION TRUST, Mortgage Pass-Through Certificates, Series 2004-4 Trust. (Class 1 and Class PO Certificates) 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 2004-4 Trust (Group 2, 3, and Subordinate Certificates), relating to the August 25, 2005 distribution. EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-4 Trust (Class 1 and Class PO Certificates), relating to the August 26, 2005 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. MASTR ASSET SECURITIZATION TRUST Mortgage Pass-Through Certificates, Series 2004-4 Trust (Registrant) By: Wells Fargo Bank, N.A. as Master Servicer By: /s/ Beth Belfield as Officer By: Beth Belfield as Officer Date: 8/25/2005 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-4 Trust (Group 2, 3, and Subordinate Certificates), relating to the August 25, 2005 distribution. EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-4 Trust (Class 1 and Class PO Certificates), relating to the August 26, 2005 distribution. EX-99.1

Mortgage Asset Securitization Transactions, Inc. Mortgage Pass-Through Certificates Record Date: 58/311/2005 Distribution Date: 68/271/2005 Mortgage Asset Securitization Transactions, Inc. Mortgage Pass-Through Certificates Series 2004-4 Contact: Customer Service - CTSLink Wells Fargo Bank, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 www.ctslink.com Telephone: (301) 815-6600 Fax: (301) 815-6660 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Class CUSIP Description Rate Balance Distribution PO 57643MAS3 PO 0.00000% ~~346~~342,~~737~~599.6558 0.00 1-A-1 57643MAD6 SEN 5.25000% 9088,~~541~~578,~~601~~014.8660 ~~396~~387,~~119~~528.5181 1-A-2 57643MAE4 LOCK 5.25000% 731,000.00 3,198.12 1-A-3 57643MAF1 LOCK 5.25000% 500,000.00 2,187.50 1-A-4 57643MBD5 ACCR 5.25000% 76,~~055~~962,~~745~~527.6343 30,~~868~~461.8906 1-A-5 57643MBE3 ACCR 5.25000% 3,618,468.21 15,830.80 1-A-6 57643MAG9 SEN 5.25000% 10,~~630~~723,~~254~~472.3757 46,~~507~~915.3619 1-A-7 57643MAH7 LOCK 5.25000% 13,894,000.00 60,786.25 1-A-8 57643MAJ3 IO 5.50000% 0.00 12,~~983~~654.5471 2-A-1 57643MAK0 SEN 5.00000% 6866,~~526~~666,~~434~~329.8271 ~~285~~277,~~113~~604.5183 2-A-2 57643MAL8 SEN 3.~~54000~~91000% 6,~~229~~060,~~675~~575.8943 1819,~~350~~735.9418 2-A-3 57643MAM6 IO 4.~~46000~~09000% 0.00 2320,~~120~~643.1170 2-A-4 57643MAN4 ACCR 5.25000% 76,~~060~~967,~~277~~131.5563 30,~~844~~462.0038 2-A-5 57643MAP9 ACCR 5.25000% 6,236,000.00 27,~~243~~265.0165 2-A-6 57643MAQ7 LOCK 5.25000% 16,245,000.00 7071,~~969~~027.0098 2-A-7 57643MBF0 SEN 5.25000% 10,~~629,~~722,868.4537 46,~~437~~883.7258 2-A-8 57643MBG8 LOCK 5.25000% 1,000,000.00 4,~~368~~372.6730 3-A-1 57643MAR5 SEN 4.50000% 3735,~~773~~446,~~276~~415.5801 ~~141~~132,~~444~~841.7597 30-AX 57643MAU8 IO 5.25000% 0.00 5150,~~486~~653.3435 15-AX 57643MAT1 IO 4.50000% 0.00 1413,~~098~~042.2899 A-UR 57643MAW4 SEN 4.50000% 0.00 0.00 A-LR 57643MAV6 SEN 4.50000% 0.00 0.0304 B-1 57643MAX2 SUB 5.~~09680~~09756% 3,~~203~~191,~~063~~681.4198 13,~~584~~549.78 B-2 57643MAY0 SUB 5.~~09680~~09756% 1,~~067~~063,~~687~~893.8099 4,~~528~~516.2659 B-3 57643MAZ7 SUB 5.~~09680~~09756% ~~639~~637,~~831~~557.2170 2,~~713~~706.6465 B-4 57643MBA1 SUB 5.~~09680~~09756% ~~426~~425,~~879~~362.7592 1,~~810~~805.4881 B-5 57643MBB9 SUB 5.~~09680~~09756% ~~320~~319,~~404~~265.0353 1,~~358~~355.8939 B-6 57643MBC7 SUB 5.~~09680~~09756% ~~320~~319,~~913~~772.1080 1,~~361~~357.0554 Totals ~~286~~280,~~996~~651,~~974~~937.3146 1,~~307~~279,~~315~~388.4315

Certificateholder Distribution Summary (continued) Current Ending Cumulative Principal Realized Certificate Total Realized Class Distribution Loss Balance Distribution Losses PO 36,~~616~~046.1216 0.00 ~~343~~336,~~121~~553.5242 36,~~616~~046.1216 0.00 1-A-1 ~~872~~2,~~741~~421,223.5288 0.00 8986,~~668~~156,~~860~~790.3471 12,~~268~~808,~~861~~752.0369 0.00 1-A-2 0.00 0.00 731,000.00 3,198.12 0.00 1-A-3 0.00 0.00 500,000.00 2,187.50 0.00 1-A-4 46,~~507~~915.3619 0.00 76,~~009~~915,~~238~~612.2624 77,376.25 0.00 1-A-5 0.00 0.00 3,618,468.21 15,830.80 0.00 1-A-6 (46,~~507~~915.3619) 0.00 10,~~676~~770,~~761~~387.7376 0.00 0.00 1-A-7 0.00 0.00 13,894,000.00 60,786.25 0.00 1-A-8 0.00 0.00 0.00 12,~~983~~654.5471 0.00 2-A-1 ~~791~~4,~~290~~710,780.2450 0.00 6761,~~735~~955,~~144~~549.5721 14,~~076~~988,~~403~~385.7533 0.00 2-A-2 71428,~~935~~252.4877 0.00 65,~~157~~632,~~740~~322.4266 90447,~~286~~987.4295 0.00 2-A-3 0.00 0.00 0.00 2320,~~120~~643.1170 0.00 2-A-4 46,~~437~~883.7258 0.00 76,~~013~~920,~~839~~248.8305 77,~~281~~345.7296 0.00 2-A-5 0.00 0.00 6,236,000.00 27,~~243~~265.0165 0.00 2-A-6 0.00 0.00 16,245,000.00 7071,~~969~~027.0098 0.00 2-A-7 (46,~~437~~883.7258) 0.00 10,~~676~~769,~~160~~751.1795 0.00 0.00 2-A-8 0.00 0.00 1,000,000.00 4,~~368~~372.6730 0.00 3-A-1 ~~172~~510,~~949~~206.7041 0.00 3734,~~600~~936,~~326~~208.8760 ~~314~~643,~~394~~048.4538 0.00 30-AX 0.00 0.00 0.00 5150,~~486~~653.3435 0.00 15-AX 0.00 0.00 0.00 1413,~~098~~042.2899 0.00 A-UR 0.00 0.00 0.00 0.00 0.00 A-LR 0.00 0.00 0.00 0.0304 0.00 B-1 5,~~674~~737.8587 0.00 3,~~197~~185,~~388~~944.5611 19,~~259~~287.6365 0.00 B-2 1,~~891~~912.62 0.00 1,~~065~~061,~~796~~981.1937 6,~~419~~429.8821 0.00 B-3 1,~~133~~146.5917 0.00 ~~638~~636,~~697~~411.6253 3,~~847~~852.2382 0.00 B-4 ~~756~~764.3070 0.00 ~~426~~424,~~123~~598.4522 2,~~566~~570.7851 0.00 B-5 ~~567~~573.6696 0.00 ~~319~~318,~~836~~691.3757 1,~~926~~929.5535 0.00 B-6 ~~568~~574.5687 0.00 ~~320~~319,~~344~~197.5492 1,~~929~~932.6141 0.0610 Totals 18,~~923~~087,~~125~~219.6491 0.00 ~~285~~272,~~073~~564,~~848~~717.6553 39,~~230~~366,~~441~~608.0706 0.0610 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) PO 379,773.88 ~~346~~342,~~737~~599.6558 ~~462~~464.65 35,~~153~~581.4851 0.00 0.00 1-A-1 110,811,000.00 9088,~~541~~578,~~601~~014.8660 7978,~~090~~229.3378 ~~793~~2,~~651~~342,994.2011 0.00 0.00 1-A-2 731,000.00 731,000.00 0.00 0.00 0.00 0.00 1-A-3 500,000.00 500,000.00 0.00 0.00 0.00 0.00 1-A-4 7,686,000.00 76,~~055~~962,~~745~~527.6343 41,~~214~~515.6383 4245,~~292~~399.7336 0.00 0.00 1-A-5 3,618,468.21 3,618,468.21 0.00 0.00 0.00 0.00 1-A-6 10,000,000.00 10,~~630~~723,~~254~~472.3757 0.00 0.00 (46,~~507~~915.3619) 0.00 1-A-7 13,894,000.00 13,894,000.00 0.00 0.00 0.00 0.00 1-A-8 0.00 0.00 0.00 0.00 0.00 0.00 2-A-1 115,841,000.00 6866,~~526~~666,~~434~~329.8271 ~~121~~120,~~018~~605.8696 ~~670~~4,~~271~~590,174.3953 0.00 0.00 2-A-2 10,531,000.00 6,~~229~~060,~~675~~575.8943 1110,~~001~~964.7118 60417,~~933~~288.7659 0.00 0.00 2-A-3 0.00 0.00 0.00 0.00 0.00 0.00 2-A-4 7,690,000.00 76,~~060~~967,~~277~~131.5563 71,~~102~~200.1232 3945,~~335~~683.6026 0.00 0.00 2-A-5 6,236,000.00 6,236,000.00 0.00 0.00 0.00 0.00 2-A-6 16,245,000.00 16,245,000.00 0.00 0.00 0.00 0.00 2-A-7 10,000,000.00 10,~~629,~~722,868.4537 0.00 0.00 (46,~~437~~883.7258) 0.00 2-A-8 1,000,000.00 1,000,000.00 0.00 0.00 0.00 0.00 3-A-1 44,817,000.00 3735,~~773~~446,~~276~~415.5801 ~~160~~153,~~046~~010.8137 12357,~~902~~196.8904 0.00 0.00 30-AX 0.00 0.00 0.00 0.00 0.00 0.00 15-AX 0.00 0.00 0.00 0.00 0.00 0.00 A-UR 50.00 0.00 0.00 0.00 0.00 0.00 A-LR 50.00 0.00 0.00 0.00 0.00 0.00 B-1 3,279,000.00 3,~~203~~191,~~063~~681.4198 5,~~674~~737.8587 0.00 0.00 0.00 B-2 1,093,000.00 1,~~067~~063,~~687~~893.8099 1,~~891~~912.62 0.00 0.00 0.00 B-3 655,000.00 ~~639~~637,~~831~~557.2170 1,~~133~~146.5917 0.00 0.00 0.00 B-4 437,000.00 ~~426~~425,~~879~~362.7592 ~~756~~764.3070 0.00 0.00 0.00 B-5 328,000.00 ~~320~~319,~~404~~265.0353 ~~567~~573.6696 0.00 0.00 0.00 B-6 328,521.14 ~~320~~319,~~913~~772.1080 ~~568~~574.5687 0.00 0.00 0.00 Totals 366,100,863.23 ~~286~~280,~~996~~651,~~974~~937.3146 ~~393~~376,~~529~~701.6928 17,~~622~~804,~~541~~317.0540 (9293,~~945~~798.0877) 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 PO 36,~~616~~046.1216 ~~343~~336,~~121~~553.5242 0.~~90348899~~88619423 36,~~616~~046.1216 1-A-1 ~~872~~2,~~741~~421,223.5288 8986,~~668~~156,~~860~~790.3471 0.~~80920541~~77751117 ~~872~~2,~~741~~421,223.5288 1-A-2 0.00 731,000.00 1.00000000 0.00 1-A-3 0.00 500,000.00 1.00000000 0.00 1-A-4 46,~~507~~915.3619 76,~~009~~915,~~238~~612.2624 0.~~91194877~~89976740 46,~~507~~915.3619 1-A-5 0.00 3,618,468.21 1.00000000 0.00 1-A-6 (46,~~507~~915.3619) 10,~~676~~770,~~761~~387.7376 1.~~06767617~~07703878 (46,~~507~~915.3619) 1-A-7 0.00 13,894,000.00 1.00000000 0.00 1-A-8 0.00 0.00 0.00000000 0.00 2-A-1 ~~791~~4,~~290~~710,780.2450 6761,~~735~~955,~~144~~549.5721 0.~~58472514~~53483265 ~~791~~4,~~290~~710,780.2450 2-A-2 71428,~~935~~252.4877 65,~~157~~632,~~740~~322.4266 0.~~58472514~~53483265 71428,~~935~~252.4877 2-A-3 0.00 0.00 0.00000000 0.00 2-A-4 46,~~437~~883.7258 76,~~013~~920,~~839~~248.8305 0.~~91207280~~89990222 46,~~437~~883.7258 2-A-5 0.00 6,236,000.00 1.00000000 0.00 2-A-6 0.00 16,245,000.00 1.00000000 0.00 2-A-7 (46,~~437~~883.7258) 10,~~676~~769,~~160~~751.1795 1.~~06761602~~07697519 (46,~~437~~883.7258) 2-A-8 0.00 1,000,000.00 1.00000000 0.00 3-A-1 ~~172~~510,~~949~~206.7041 3734,~~600~~936,~~326~~208.8760 0.~~83897465~~77953028 ~~172~~510,~~949~~206.7041 30-AX 0.00 0.00 0.00000000 0.00 15-AX 0.00 0.00 0.00000000 0.00 A-UR 0.00 0.00 0.00000000 0.00 A-LR 0.00 0.00 0.00000000 0.00 B-1 5,~~674~~737.8587 3,~~197~~185,~~388~~944.5611 0.~~97511088~~97162065 5,~~674~~737.8587 B-2 1,~~891~~912.62 1,~~065~~061,~~796~~981.1937 0.~~97511088~~97162065 1,~~891~~912.62 B-3 1,~~133~~146.5917 ~~638~~636,~~697~~411.6253 0.~~97511087~~97162066 1,~~133~~146.5917 B-4 ~~756~~764.3070 ~~426~~424,~~123~~598.4522 0.~~97511087~~97162064 ~~756~~764.3070 B-5 ~~567~~573.6696 ~~319~~318,~~836~~691.3757 0.~~97511088~~97162064 ~~567~~573.6696 B-6 ~~568~~574.5687 ~~320~~319,~~344~~197.5492 0.~~97511089~~97162064 ~~568~~574.5687 Totals 18,~~923~~087,~~125~~219.6491 ~~285~~272,~~073~~564,~~848~~717.6553 0.~~77867571~~74450717 18,~~923~~087,~~125~~219.6491

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion PO 379,773.88 ~~913~~902.~~01078947~~11464780 1.~~21822491~~22349120 814.~~30357264~~69692966 0.00000000 1-A-1 110,811,000.00 ~~817~~799.~~08135348~~36120602 0.~~71374078~~70597486 721.~~16220592~~14405709 0.00000000 1-A-2 731,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 1-A-3 500,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 1-A-4 7,686,000.00 ~~917~~905.~~99969165~~87138043 0.~~54835155~~19721962 5.~~50256700~~90676034 0.00000000 1-A-5 3,618,468.21 1000.00000000 0.00000000 0.00000000 0.00000000 1-A-6 10,000,000.00 ~~1063~~1072.~~02543700~~34725700 0.00000000 0.00000000 (4.~~65073600~~69151900) 1-A-7 13,894,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 1-A-8 0.00 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 115,841,000.00 ~~591~~575.~~55596740~~49856881 1.~~04469799~~04113362 539.~~78613263~~62478337 0.00000000 2-A-2 10,531,000.00 ~~591~~575.~~55596714~~49856899 1.~~04469756~~04113380 539.~~78613237~~62478302 0.00000000 2-A-3 0.00 0.00000000 0.00000000 0.00000000 0.00000000 2-A-4 7,690,000.00 ~~918~~905.~~11151495~~99891157 0.~~92355267~~15608843 5.~~11516255~~94060598 0.00000000 2-A-5 6,236,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 2-A-6 16,245,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 2-A-7 10,000,000.00 ~~1062~~1072.~~97224500~~28683700 0.00000000 0.00000000 (4.~~64377200~~68835800) 2-A-8 1,000,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 3-A-1 44,817,000.00 ~~842~~790.~~83366981~~91449695 3.~~57111833~~41411451 07.~~28790169~~97010152 0.00000000 30-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 15-AX 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-UR 50.00 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 50.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 3,279,000.00 ~~976~~973.~~84154010~~37053370 1.~~73066484~~74988411 0.00000000 0.00000000 B-2 1,093,000.00 ~~976~~973.~~84153705~~37053065 1.~~73066789~~74988106 0.00000000 0.00000000 B-3 655,000.00 ~~976~~973.~~84154198~~37053435 1.~~73067176~~74987786 0.00000000 0.00000000 B-4 437,000.00 ~~976~~973.~~84153318~~37052632 1.~~73066362~~74988558 0.00000000 0.00000000 B-5 328,000.00 ~~976~~973.~~84155488~~37051829 1.~~73067073~~74987805 0.00000000 0.00000000 B-6 328,521.14 ~~976~~973.~~84155120~~37054169 1.~~73066488~~74987217 0.00000000 0.00000000 (2) All Classes are per $1,000 denomination

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution PO 0.00000000 915.~~52177122~~92042086 ~~903~~886.~~48899192~~19422694 0.~~90348899~~88619423 915.~~52177122~~92042086 1-A-1 0.00000000 721.~~87594661~~85003186 ~~809~~777.~~20540686~~51117407 0.~~80920541~~77751117 721.~~87594661~~85003186 1-A-2 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 1-A-3 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 1-A-4 0.00000000 6.~~05091855~~10397996 ~~911~~899.~~94877179~~76740047 0.~~91194877~~89976740 6.~~05091855~~10397996 1-A-5 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 1-A-6 0.00000000 (4.~~65073600~~69151900) 1,~~067~~077.~~67617300~~03877600 1.~~06767617~~07703878 (4.~~65073600~~69151900) 1-A-7 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 1-A-8 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 0.00000000 640.~~83083053~~66591708 ~~584~~534.~~72513678~~83265174 0.~~58472514~~53483265 640.~~83083053~~66591708 2-A-2 0.00000000 640.~~83083088~~66591682 ~~584~~534.~~72513721~~83265217 0.~~58472514~~53483265 640.~~83083088~~66591682 2-A-3 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A-4 0.00000000 6.~~03871521~~09669441 ~~912~~899.~~07279974~~90221717 0.~~91207280~~89990222 6.~~03871521~~09669441 2-A-5 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 2-A-6 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 2-A-7 0.00000000 (4.~~64377200~~68835800) 1,~~067~~076.~~61601700~~97519500 1.~~06761602~~07697519 (4.~~64377200~~68835800) 2-A-8 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 3-A-1 0.00000000 311.~~85902001~~38421603 ~~838~~779.~~97464957~~53028092 0.~~83897465~~77953028 311.~~85902001~~38421603 30-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 15-AX 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-UR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 1.~~73066484~~74988411 ~~975~~971.~~11087527~~62064959 0.~~97511088~~97162065 1.~~73066484~~74988411 B-2 0.00000000 1.~~73066789~~74988106 ~~975~~971.~~11087832~~62064959 0.~~97511088~~97162065 1.~~73066789~~74988106 B-3 0.00000000 1.~~73067176~~74987786 ~~975~~971.~~11087023~~62065649 0.~~97511087~~97162066 1.~~73067176~~74987786 B-4 0.00000000 1.~~73066362~~74988558 ~~975~~971.~~11086957~~62064073 0.~~97511087~~97162064 1.~~73066362~~74988558 B-5 0.00000000 1.~~73067073~~74987805 ~~975~~971.~~11088415~~62064024 0.~~97511088~~97162064 1.~~73067073~~74987805 B-6 0.00000000 1.~~73066488~~74987217 ~~975~~971.~~11088632~~62063909 0.~~97511089~~97162064 1.~~73066488~~74987217 (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 PO 379,773.88 0.00000% ~~346~~342,~~737~~599.6558 0.00 0.00 0.00 1-A-1 110,811,000.00 5.25000% 9088,~~541~~578,~~601~~014.8660 ~~396~~387,~~119~~528.5181 0.00 0.00 1-A-2 731,000.00 5.25000% 731,000.00 3,198.12 0.00 0.00 1-A-3 500,000.00 5.25000% 500,000.00 2,187.50 0.00 0.00 1-A-4 7,686,000.00 5.25000% 76,~~055~~962,~~745~~527.6343 30,~~868~~461.8906 0.00 0.00 1-A-5 3,618,468.21 5.25000% 3,618,468.21 15,830.80 0.00 0.00 1-A-6 10,000,000.00 5.25000% 10,~~630~~723,~~254~~472.3757 46,~~507~~915.3619 0.00 0.00 1-A-7 13,894,000.00 5.25000% 13,894,000.00 60,786.25 0.00 0.00 1-A-8 0.00 5.50000% 2,~~832~~761,~~771~~028.3018 12,~~983~~654.5471 0.00 0.00 2-A-1 115,841,000.00 5.00000% 6866,~~526~~666,~~434~~329.8271 ~~285~~277,~~526~~776.8137 0.00 0.00 2-A-2 10,531,000.00 3.~~54000~~91000% 6,~~229~~060,~~675~~575.8943 1819,~~377~~747.5437 0.00 0.00 2-A-3 0.00 4.~~46000~~09000% 6,~~229~~060,~~675~~575.8943 2320,~~153~~656.6346 0.00 0.00 2-A-4 7,690,000.00 5.25000% 76,~~060~~967,~~277~~131.5563 30,~~888~~481.7120 0.00 0.00 2-A-5 6,236,000.00 5.25000% 6,236,000.00 27,282.50 0.00 0.00 2-A-6 16,245,000.00 5.25000% 16,245,000.00 71,071.88 0.00 0.00 2-A-7 10,000,000.00 5.25000% 10,~~629,~~722,868.4537 46,~~505~~912.0455 0.00 0.00 2-A-8 1,000,000.00 5.25000% 1,000,000.00 4,375.00 0.00 0.00 3-A-1 44,817,000.00 4.50000% 3735,~~773~~446,~~276~~415.5801 ~~141~~132,~~649~~924.7906 0.00 0.00 30-AX 0.00 5.25000% 11,~~785~~585,~~366~~063.7159 5150,~~560~~684.9865 0.00 0.00 15-AX 0.00 4.50000% 3,~~764~~480,~~992~~280.0992 1413,~~118~~051.7205 0.00 0.00 A-UR 50.00 4.50000% 0.00 0.00 0.00 0.00 A-LR 50.00 4.50000% 0.00 0.00 0.00 0.00 B-1 3,279,000.00 5.~~09680~~09756% 3,~~203~~191,~~063~~681.4198 13,~~604~~558.4715 0.00 0.00 B-2 1,093,000.00 5.~~09680~~09756% 1,~~067~~063,~~687~~893.8099 4,~~534~~519.8238 0.00 0.00 B-3 655,000.00 5.~~09680~~09756% ~~639~~637,~~831~~557.2170 2,~~717~~708.5832 0.00 0.00 B-4 437,000.00 5.~~09680~~09756% ~~426~~425,~~879~~362.7592 1,~~813~~806.1093 0.00 0.00 B-5 328,000.00 5.~~09680~~09756% ~~320~~319,~~404~~265.0353 1,~~360~~356.8623 0.00 0.00 B-6 328,521.14 5.~~09680~~09756% ~~320~~319,~~913~~772.1080 1,~~363~~358.0238 0.00 0.00 Totals 366,100,863.23 1,~~308~~279,~~386~~832.4292 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 PO 0.00 0.00 0.00 0.00 ~~343~~336,~~121~~553.5242 1-A-1 0.00 0.00 ~~396~~387,~~119~~528.5181 0.00 8986,~~668~~156,~~860~~790.3471 1-A-2 0.00 0.00 3,198.12 0.00 731,000.00 1-A-3 0.00 0.00 2,187.50 0.00 500,000.00 1-A-4 0.00 0.00 30,~~868~~461.8906 0.00 76,~~009~~915,~~238~~612.2624 1-A-5 0.00 0.00 15,830.80 0.00 3,618,468.21 1-A-6 0.00 0.00 46,~~507~~915.3619 0.00 10,~~676~~770,~~761~~387.7376 1-A-7 0.00 0.00 60,786.25 0.00 13,894,000.00 1-A-8 0.00 0.00 12,~~983~~654.5471 0.00 2,~~802~~712,~~225~~633.5464 2-A-1 ~~413~~171.3054 0.00 ~~285~~277,~~113~~604.5183 0.00 6761,~~735~~955,~~144~~549.5721 2-A-2 2612.6019 0.00 1819,~~350~~735.9418 0.00 65,~~157~~632,~~740~~322.4266 2-A-3 3312.5276 0.00 2320,~~120~~643.1170 0.00 65,~~157~~632,~~740~~322.4266 2-A-4 4418.7182 0.00 30,~~844~~462.0038 0.00 76,~~013~~920,~~839~~248.8305 2-A-5 3916.4985 0.00 27,~~243~~265.0165 0.00 6,236,000.00 2-A-6 ~~102~~43.8889 0.00 7071,~~969~~027.0098 0.00 16,245,000.00 2-A-7 6728.3297 0.00 46,~~437~~883.7258 0.00 10,~~676~~769,~~160~~751.1795 2-A-8 62.3370 0.00 4,~~368~~372.6730 0.00 1,000,000.00 3-A-1 ~~205~~82.0409 0.00 ~~141~~132,~~444~~841.7597 0.00 3734,~~600~~936,~~326~~208.8760 30-AX 7431.6430 0.00 5150,~~486~~653.3435 0.00 1110,~~715~~990,~~107~~056.4974 15-AX 208.4406 0.00 1413,~~098~~042.2899 0.00 3,~~748~~377,~~372~~224.0626 A-UR 0.00 0.00 0.00 0.00 0.00 A-LR 0.00 0.00 0.0304 0.00 0.00 B-1 198.6937 0.00 13,~~584~~549.78 0.00 3,~~197~~185,~~388~~944.5611 B-2 62.5679 0.00 4,~~528~~516.2659 0.00 1,~~065~~061,~~796~~981.1937 B-3 31.9367 0.00 2,~~713~~706.6465 0.00 ~~638~~636,~~697~~411.6253 B-4 21.6212 0.00 1,~~810~~805.4881 0.00 ~~426~~424,~~123~~598.4522 B-5 10.9784 0.00 1,~~358~~355.8939 0.00 ~~319~~318,~~836~~691.3757 B-6 10.9784 0.00 1,~~361~~357.0554 0.00 ~~320~~319,~~344~~197.5492 Totals ~~1,071~~444.0180 0.00 1,~~307~~279,~~315~~388.4315 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 PO 379,773.88 0.00000% ~~913~~902.~~01078947~~11464780 0.00000000 0.00000000 0.00000000 1-A-1 110,811,000.00 5.25000% ~~817~~799.~~08135348~~36120602 3.~~57473094~~49720524 0.00000000 0.00000000 1-A-2 731,000.00 5.25000% 1000.00000000 4.37499316 0.00000000 0.00000000 1-A-3 500,000.00 5.25000% 1000.00000000 4.37500000 0.00000000 0.00000000 1-A-4 7,686,000.00 5.25000% ~~917~~905.~~99969165~~87138043 43.~~01624902~~96318761 0.00000000 0.00000000 1-A-5 3,618,468.21 5.25000% 1000.00000000 4.37500044 0.00000000 0.00000000 1-A-6 10,000,000.00 5.25000% ~~1063~~1072.~~02543700~~34725700 4.~~65073600~~69151900 0.00000000 0.00000000 1-A-7 13,894,000.00 5.25000% 1000.00000000 4.37500000 0.00000000 0.00000000 1-A-8 0.00 5.50000% ~~829~~808.~~03892788~~04258438 3.~~79976318~~70352778 0.00000000 0.00000000 2-A-1 115,841,000.00 5.00000% ~~591~~575.~~55596740~~49856881 2.~~46481652~~39791067 0.00000000 0.00000000 2-A-2 10,531,000.00 3.~~54000~~91000% ~~591~~575.~~55596714~~49856899 1.~~74508974~~87516570 0.00000000 0.00000000 2-A-3 0.00 4.~~46000~~09000% ~~591~~575.~~55596714~~49856899 21.~~19861647~~96149084 0.00000000 0.00000000 2-A-4 7,690,000.00 5.25000% ~~918~~905.~~11151495~~99891157 43.~~01673732~~96374512 0.00000000 0.00000000 2-A-5 6,236,000.00 5.25000% 1000.00000000 4.37500000 0.00000000 0.00000000 2-A-6 16,245,000.00 5.25000% 1000.00000000 4.37500031 0.00000000 0.00000000 2-A-7 10,000,000.00 5.25000% ~~1062~~1072.~~97224500~~28683700 4.~~65050400~~69125500 0.00000000 0.00000000 2-A-8 1,000,000.00 5.25000% 1000.00000000 4.37500000 0.00000000 0.00000000 3-A-1 44,817,000.00 4.50000% ~~842~~790.~~83366981~~91449695 32.~~16062632~~96592945 0.00000000 0.00000000 30-AX 0.00 5.25000% ~~645~~634.~~77196143~~79647446 2.~~82525237~~77723440 0.00000000 0.00000000 15-AX 0.00 4.50000% ~~790~~730.~~78032014~~98099393 2.~~96542613~~74117800 0.00000000 0.00000000 A-UR 50.00 4.50000% 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 50.00 4.50000% 0.00000000 0.00000000 0.00000000 0.00000000 B-1 3,279,000.00 5.~~09680~~09756% ~~976~~973.~~84154010~~37053370 4.~~14896920~~13484294 0.00000000 0.00000000 B-2 1,093,000.00 5.~~09680~~09756% ~~976~~973.~~84153705~~37053065 4.~~14896615~~13483989 0.00000000 0.00000000 B-3 655,000.00 5.~~09680~~09756% ~~976~~973.~~84154198~~37053435 4.~~14897710~~13483969 0.00000000 0.00000000 B-4 437,000.00 5.~~09680~~09756% ~~976~~973.~~84153318~~37052632 4.~~14897025~~13485126 0.00000000 0.00000000 B-5 328,000.00 5.~~09680~~09756% ~~976~~973.~~84155488~~37051829 4.~~14896341~~13484756 0.00000000 0.00000000 B-6 328,521.14 5.~~09680~~09756% ~~976~~973.~~84155120~~37054169 4.~~14895675~~13483285 0.00000000 0.00000000 (5) All Classes are per $1,000 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 PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~903~~886.~~48899192~~19422694 1-A-1 0.00000000 0.00000000 3.~~57473094~~49720524 0.00000000 ~~809~~777.~~20540686~~51117407 1-A-2 0.00000000 0.00000000 4.37499316 0.00000000 1000.00000000 1-A-3 0.00000000 0.00000000 4.37500000 0.00000000 1000.00000000 1-A-4 0.00000000 0.00000000 43.~~01624902~~96318761 0.00000000 ~~911~~899.~~94877179~~76740047 1-A-5 0.00000000 0.00000000 4.37500044 0.00000000 1000.00000000 1-A-6 0.00000000 0.00000000 4.~~65073600~~69151900 0.00000000 ~~1067~~1077.~~67617300~~03877600 1-A-7 0.00000000 0.00000000 4.37500000 0.00000000 1000.00000000 1-A-8 0.00000000 0.00000000 3.~~79976318~~70352778 0.00000000 ~~820~~793.~~09940491~~87943695 2-A-1 0.~~00356782~~00148082 0.00000000 2.~~46124869~~39642985 0.00000000 ~~584~~534.~~72513678~~83265174 2-A-2 0.~~00252588~~00115753 0.00000000 1.~~74256386~~87400817 0.00000000 ~~584~~534.~~72513721~~83265217 2-A-3 0.~~00318298~~00121166 0.00000000 21.~~19543348~~96027918 0.00000000 ~~584~~534.~~72513721~~83265217 2-A-4 0.~~00581404~~00244733 0.00000000 43.~~01092328~~96129779 0.00000000 ~~912~~899.~~07279974~~90221717 2-A-5 0.~~00633258~~00270205 0.00000000 4.~~36866742~~37229795 0.00000000 1000.00000000 2-A-6 0.~~00633303~~00270175 0.00000000 4.~~36866728~~37229794 0.00000000 1000.00000000 2-A-7 0.~~00673200~~00289700 0.00000000 4.~~64377200~~68835800 0.00000000 ~~1067~~1076.~~61601700~~97519500 2-A-8 0.~~00633000~~00270000 0.00000000 4.~~36867000~~37230000 0.00000000 1000.00000000 3-A-1 0.~~00457505~~00183167 0.00000000 32.~~15605128~~96409778 0.00000000 ~~838~~779.~~97464957~~53028092 30-AX 0.~~00408985~~00171506 0.00000000 2.~~82116251~~77551934 0.00000000 ~~641~~602.~~92215043~~19343800 15-AX 0.~~00429312~~00169288 0.00000000 2.~~96113301~~73948512 0.00000000 ~~787~~709.~~28953122~~33548269 A-UR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 0.00000000 0.00000000 0.~~60000000~~80000000 0.00000000 0.00000000 B-1 0.~~00600488~~00255261 0.00000000 4.~~14296432~~13229033 0.00000000 ~~975~~971.~~11087527~~62064959 B-2 0.~~00600183~~00255261 0.00000000 4.~~14296432~~13228728 0.00000000 ~~975~~971.~~11087832~~62064959 B-3 0.~~00600000~~00254962 0.00000000 4.~~14296183~~13229008 0.00000000 ~~975~~971.~~11087023~~62065649 B-4 0.~~00599542~~00256293 0.00000000 4.~~14297483~~13228833 0.00000000 ~~975~~971.~~11086957~~62064073 B-5 0.~~00600610~~00256098 0.00000000 4.~~14295732~~13228659 0.00000000 ~~975~~971.~~11088415~~62064024 B-6 0.~~00599657~~00255691 0.00000000 4.~~14296018~~13227593 0.00000000 ~~975~~971.~~11088632~~62063909 (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 Component Statement Component Beginning Ending Beginning Ending Ending Pass-Through Notional Notional Component Component Component Class Rate Balance Balance Balance Balance Percentage PO-1 0.00000% 0.00 0.00 ~~276~~275,~~198~~194.8065 ~~275~~269,~~595~~270.6103 9088.~~40119812~~32627388% PO-2 0.00000% 0.00 0.00 7067,~~538~~404.8592 67,~~525~~283.9239 9089.~~13608929~~81235130%

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 39,~~268~~404,~~867~~036.5828 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 39,~~268~~404,~~867~~036.5828 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 3837,~~426~~428.5122 Payment of Interest and Principal 39,~~230~~366,~~441~~608.0706 Total Withdrawals (Pool Distribution Amount) 39,~~268~~404,~~867~~036.5828 Ending Balance 0.00

PREPAYMENT/CURTAILMENT INTEREST SHORTFALL Total Prepayment/Curtailment Interest Shortfall ~~1,071~~444.0180 Servicing Fee Support 0.00 Non-Supported Prepayment/Curtailment Interest Shortfall ~~1,071~~444.0180

SERVICING FEES Gross Servicing Fee 3332,~~281~~368.2062 Master Servicing Fee ~~743~~715.2278 Trust Administrator Fee - Wells Fargo 2,~~650~~610.9806 WMMSC Master Servicing Fee 1,~~751~~733.1176 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 3837,~~426~~428.5122

LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT 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 31 0 0 0 3 1 638,~~761,139~~010.8716 0.00 0.00 0.00 1638,~~761,139~~010.8716 60 Days 10 0 0 0 10 ~~624,814~~0.1300 0.00 0.00 0.00 ~~624,814~~0.1300 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 01 0 01 0.00 0.00 0624,814.0013 0.00 0624,814.0013 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 41 0 01 0 4 2 638,~~385,954~~010.0016 0.00 0624,814.0013 0.00 21,~~385~~262,~~954~~824.0029 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.~~914634~~322581% 0.000000% 0.000000% 0.000000% 0.~~914634~~322581% 10.~~107998~~425486% 0.000000% 0.000000% 0.000000% 10.~~107998~~425486% 60 Days 0.~~304878~~000000% 0.000000% 0.000000% 0.000000% 0.~~304878~~000000% 0.~~393094~~000000% 0.000000% 0.000000% 0.000000% 0.~~393094~~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~~322581% 0.000000% 0.~~000000~~322581% 0.000000% 0.000000% 0.~~000000~~416685% 0.000000% 0.~~000000~~416685% 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 10.~~219512~~322581% 0.000000% 0.~~000000~~322581% 0.000000% 10.~~219512~~645161% 10.~~501092~~425486% 0.000000% 0.~~000000~~416685% 0.000000% 10.~~501092~~842171%

Delinquency Status By Groups

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 31 0 0 0 3 1 638,~~761,139~~010.8716 0.00 0.00 0.00 1638,~~761,139~~010.8716 60 Days 10 0 0 0 10 ~~624,814~~0.1300 0.00 0.00 0.00 ~~624,814~~0.1300 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 01 0 01 0.00 0.00 0624,814.0013 0.00 0624,814.0013 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 41 0 01 0 4 2 638,~~385,954~~010.0016 0.00 0624,814.0013 0.00 21,~~385~~262,~~954~~824.0029 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 10.~~209677~~425532% 0.000000% 0.000000% 0.000000% 10.~~209677~~425532% 10.~~467665~~561268% 0.000000% 0.000000% 0.000000% 10.~~467665~~561268% 60 Days 0.~~403226~~000000% 0.000000% 0.000000% 0.000000% 0.~~403226~~000000% 0.~~520696~~000000% 0.000000% 0.000000% 0.000000% 0.~~520696~~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~~425532% 0.000000% 0.~~000000~~425532% 0.000000% 0.000000% 0.~~000000~~549660% 0.000000% 0.~~000000~~549660% 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 10.~~612903~~425532% 0.000000% 0.~~000000~~425532% 0.000000% 10.~~612903~~851064% 10.~~988361~~561268% 0.000000% 0.~~000000~~549660% 0.000000% 1.~~988361~~110928% 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 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 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 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 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 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 147,~~497~~588.0376

CREDIT ENHANCEMENT Original $ Original % Current $ Current % Bankruptcy 100,000.00 0.02731488% 100,000.00 0.~~06301200~~06679617% Fraud 2,185,555.00 0.59698166% 2,185,555.00 1.~~37716197~~45986697% Special Hazard 2,696,283.00 0.73648638% 2,660,005.60 1.~~67612279~~77678179% Limit of Subordinate's Exposure to Certain Types of Losses

REO Detail - All Mortgage Loans in REO during Current Period

Summary 12 Month REO History* New REO Loans Month REO Percentage Loans in REO 0 ~~Jul~~Sep-04 0.000% Original Principal Balance 0.00 ~~Aug~~Oct-04 0.000% Current Principal Balance 0.00 ~~Sep~~Nov-04 0.000% ~~Oct~~Dec-04 0.000% Current REO Total ~~Nov~~Jan-0405 0.000% Loans in REO 0 ~~Dec~~Feb-0405 0.000% Original Principal Balance 0.00 ~~Jan~~Mar-05 0.000% Current Principal Balance 0.00 ~~Feb~~Apr-05 0.000% ~~Mar~~May-05 0.000% ~~Apr~~Jun-05 0.000% ~~May~~Jul-05 0.000% ~~Jun~~Aug-05 0.000% *The text reported in the above table is presented graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at www.ctslink.com. Group 2 12 Month REO History* New REO Loans Month REO Percentage Loans in REO 0 ~~Jul~~Sep-04 0.000% Original Principal Balance 0.00 ~~Aug~~Oct-04 0.000% Current Principal Balance 0.00 ~~Sep~~Nov-04 0.000% ~~Oct~~Dec-04 0.000% Current REO Total ~~Nov~~Jan-0405 0.000% Loans in REO 0 ~~Dec~~Feb-0405 0.000% Original Principal Balance 0.00 ~~Jan~~Mar-05 0.000% Current Principal Balance 0.00 ~~Feb~~Apr-05 0.000% ~~Mar~~May-05 0.000% ~~Apr~~Jun-05 0.000% ~~May~~Jul-05 0.000% ~~Jun~~Aug-05 0.000% *The text reported in the above table is presented graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at www.ctslink.com. Group 3 12 Month REO History* New REO Loans Month REO Percentage Loans in REO 0 ~~Jul~~Sep-04 0.000% Original Principal Balance 0.00 ~~Aug~~Oct-04 0.000% Current Principal Balance 0.00 ~~Sep~~Nov-04 0.000% ~~Oct~~Dec-04 0.000% Current REO Total ~~Nov~~Jan-0405 0.000% Loans in REO 0 ~~Dec~~Feb-0405 0.000% Original Principal Balance 0.00 ~~Jan~~Mar-05 0.000% Current Principal Balance 0.00 ~~Feb~~Apr-05 0.000% ~~Mar~~May-05 0.000% ~~Apr~~Jun-05 0.000% ~~May~~Jul-05 0.000% ~~Jun~~Aug-05 0.000% *The text reported in the above table is presented graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at www.ctslink.com.

Foreclosure Detail - All Mortgage Loans in Foreclosure during Current Period

Summary 12 Month Foreclosure History* New Foreclosure Loans Month Foreclosure Percentage Loans in Foreclosure 0 ~~Jul~~Sep-04 0.000% Original Principal Balance 0.00 ~~Aug~~Oct-04 0.000% Current Principal Balance 0.00 ~~Sep~~Nov-04 0.000% ~~Oct~~Dec-04 0.000% Current Foreclosure Total ~~Nov~~Jan-0405 0.000% Loans in Foreclosure 01 ~~Dec~~Feb-0405 0.000% Original Principal Balance 0633,750.00 ~~Jan~~Mar-05 0.000% Current Principal Balance 0624,814.0013 ~~Feb~~Apr-05 0.000% ~~Mar~~May-05 0.000% ~~Apr~~Jun-05 0.000% ~~May~~Jul-05 0.~~000~~402% ~~Jun~~Aug-05 0.~~000~~417% *The text reported in the above table is presented graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at www.ctslink.com. Group 2 12 Month Foreclosure History* New Foreclosure Loans Month Foreclosure Percentage Loans in Foreclosure 0 ~~Jul~~Sep-04 0.000% Original Principal Balance 0.00 ~~Aug~~Oct-04 0.000% Current Principal Balance 0.00 ~~Sep~~Nov-04 0.000% ~~Oct~~Dec-04 0.000% Current Foreclosure Total ~~Nov~~Jan-0405 0.000% Loans in Foreclosure 01 ~~Dec~~Feb-0405 0.000% Original Principal Balance 0633,750.00 ~~Jan~~Mar-05 0.000% Current Principal Balance 0624,814.0013 ~~Feb~~Apr-05 0.000% ~~Mar~~May-05 0.000% ~~Apr~~Jun-05 0.000% ~~May~~Jul-05 0.~~000~~526% ~~Jun~~Aug-05 0.~~000~~550% *The text reported in the above table is presented graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at www.ctslink.com. Group 3 12 Month Foreclosure History* New Foreclosure Loans Month Foreclosure Percentage Loans in Foreclosure 0 ~~Jul~~Sep-04 0.000% Original Principal Balance 0.00 ~~Aug~~Oct-04 0.000% Current Principal Balance 0.00 ~~Sep~~Nov-04 0.000% ~~Oct~~Dec-04 0.000% Current Foreclosure Total ~~Nov~~Jan-0405 0.000% Loans in Foreclosure 0 ~~Dec~~Feb-0405 0.000% Original Principal Balance 0.00 ~~Jan~~Mar-05 0.000% Current Principal Balance 0.00 ~~Feb~~Apr-05 0.000% ~~Mar~~May-05 0.000% ~~Apr~~Jun-05 0.000% ~~May~~Jul-05 0.000% ~~Jun~~Aug-05 0.000% *The text reported in the above table is presented graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at www.ctslink.com.

Foreclosure Loan Detail - All Mortgage Loans in Foreclosure during Current Period Month Loan First Original Loan Entered Payment LTV at Principal Group Number FC Date State Origination Balance NoGroup ~~Foreclosure~~2 ~~loans~~0090309158 ~~this~~Jul-2005 ~~period~~01-Jan-2004 NJ 79.22 633,750.00

Foreclosure Loan Detail - All Mortgage Loans in Foreclosure during Current Period (continued) Current Paid Current Approximate Loan Principal To Months Loan Delinquent Group Number Balance Date Delinquent Rate Interest NoGroup ~~Foreclosure~~2 ~~loans~~0090309158 ~~this~~624,814.13 ~~period~~01-Mar-2005 4 6.625% 19,886.66

COLLATERAL STATEMENT Collateral Description Mixed Fixed Ratio Strip Weighted Average Gross Coupon 5.~~826715~~831954% Weighted Average Pass-Through Rate 45.~~611944~~563035% Weighted Average Maturity(Stepdown Calculation) ~~300~~298 Beginning Scheduled Collateral Loan Count ~~330~~322 Number Of Loans Paid In Full 212 Ending Scheduled Collateral Loan Count ~~328~~310 Beginning Scheduled Collateral Balance ~~159~~155,~~749~~369,~~705~~259.4399 Ending Scheduled Collateral Balance ~~158~~149,~~699~~709,~~924~~188.5058 Ending Actual Collateral Balance at 01-~~Jun~~Aug-2005 ~~158~~149,~~947~~948,~~909~~633.5618 Monthly P&I Constant 1,~~078~~050,~~447~~484.2119 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Non-PO Optimal Amount 39,~~188~~318,~~293~~942.3994 Class AP Deferred Amount 0.00 Scheduled Principal ~~302~~295,~~767~~395.2550 Unscheduled Principal ~~747~~5,~~013~~364,675.6891

Miscellaneous Reporting Underlying Certificate 1- P&I ~~964~~1,~~640~~352,970.9515 Underlying Certificate 2- P&I ~~380~~1,~~428~~497,006.1201 Underlying Certificate 3- P&I 99139,~~408~~344.6085 Group 2 Senior Prepayment % 100.000000% Group 3 Senior Prepayment % 100.000000% Group 2 Senior % 9695.~~057910~~999288% Group 3 Senior % 96.~~868066~~696680% Group 2 Junior % 34.~~942090~~000712% Group 3 Junior % 3.~~131934~~303320%

Group Level Collateral Statement Group Group 2 Group 3 Total Collateral Description Fixed 30 Year Ratio Strip Fixed 15 Year Mixed Fixed Ratio Strip Weighted Average Coupon Rate 6.~~032779~~032896 5.~~188593~~181219 5.~~826715~~831954 Weighted Average Net Rate 5.~~782778~~782896 4.~~938593~~931219 5.~~576715~~568563 Weighted Average Maturity ~~341~~339 ~~163~~161 ~~300~~298 Beginning Loan Count ~~250~~246 8076 ~~330~~322 Loans Paid In Full 211 01 212 Ending Loan Count ~~248~~235 8075 ~~328~~310 Beginning Scheduled Balance ~~120~~118,~~755~~711,~~145~~936.1329 3836,~~994~~657,~~560~~323.3070 ~~159~~155,~~749~~369,~~705~~259.4399 Ending Scheduled Balance ~~119~~113,~~883~~567,~~488~~298.53 38 36,~~816~~141,~~435~~890.9720 ~~158~~149,~~699~~709,~~924~~188.5058 Record Date 0608/01/2005 0608/01/2005 0608/01/2005 Principal And Interest Constant ~~744~~733,~~620~~972.0206 ~~333~~316,~~827~~512.1913 1,~~078~~050,~~447~~484.2119 Scheduled Principal 137,~~545~~158.8104 ~~165~~158,~~221~~237.4446 ~~302~~295,~~767~~395.2550 Unscheduled Principal ~~734~~5,~~110~~007,479.7987 12357,~~902~~196.8904 ~~747~~5,~~013~~364,675.6891 Scheduled Interest ~~607~~596,~~074~~814.2102 ~~168~~158,~~605~~274.7567 ~~775~~755,~~679~~088.9669 Servicing Fees 2524,~~157~~731.3468 87,~~123~~636.8693 3332,~~281~~368.2061 Master Servicing Fees ~~609~~594.6805 ~~133~~121.5471 ~~743~~715.2276 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 1,~~751~~733.1176 0.00 1,~~751~~733.1176 Pool Insurance Fee 0.00 0.00 0.00 Spread 1 0.00 0.00 0.00 Spread 2 0.00 0.00 0.00 Spread 3 0.00 0.00 0.00 Net Interest ~~579~~569,~~556~~754.0853 ~~160~~150,~~348~~516.3503 ~~739~~720,~~904~~270.4356 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.0000 0.0000 0.0000 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00

Prepayment Detail - Prepayments during Current Period Summary Loans Paid In Full Repurchased Loans Original Current Original Current Principal Principal Principal Principal Group Count Balance Balance Count Balance Balance ~~Total~~Group 2 ~~724~~11 5,~~000~~097,600.00 ~~708~~4,~~450~~993,422.6982 0 0.00 0.00 Group 3 1 378,300.00 349,296.20 0 0.00 0.00 Total 12 5,475,900.00 5,342,719.02 0 0.00 0.00

Prepayment Detail - Prepayments during Current Period (continued) Summary Substitution Loans Liquidated Loans Curtailments Original Current Original Current Principal Principal Principal Principal Curtailment Group Count Balance Balance Count Balance Balance Amount Group 2 0 0.00 0.00 0 0.00 0.00 19,545.26 Group 3 0 0.00 0.00 0 0.00 0.00 9,356.56 Total 0 0.00 0.00 0 0.00 0.00 3928,~~374~~901.8482

Prepayment Loan Detail - Prepayments during Current Period First Original Loan LTV at Payment Principal Prepayment Group Number State Origination Date Balance Amount Group 2 ~~0050430080~~0002763463 CA 6854.2575 01-~~Sep~~Nov-2003 ~~389~~980,000.00 ~~379~~957,~~167~~882.9264 Group 2 ~~9032416828~~0006937084 NY 90.00 01-Feb-2004 346,500.00 339,951.68 Group 2 0006955645 NJ 54.94 01-Mar-2004 467,000.00 458,063.60 Group 2 0007515938 GA 77.73 01-Feb-2004 357,550.00 350,361.46 Group 2 0009309060 WA 88.95 01-Jan-2004 404,700.00 396,627.91 Group 2 0021703332 VA 80.00 01-Feb-2004 573,550.00 561,936.26 Group 2 0025835406 CA 7580.6200 01-Nov-2003 ~~335~~463,200.00 448,289.89 Group 2 0033604003 VA 79.99 01-Mar-2004 409,100.00 401,449.29 Group 2 0132993180 CA 33.43 01-Nov-2003 336,000.00 328,~~470~~241.9269 Group 2 9040408759 CA 80.00 01-Dec-2003 360,000.00 352,440.35 Group 2 9040500621 CA 61.54 01-Mar-2004 400,000.00 392,689.84 Group 3 0002803263 TX 78.81 01-Nov-2003 378,300.00 347,839.48

Prepayment Loan Detail - Prepayments during Current Period (continued) Current Loan PIF Months Loan Original Group Number Type Delinquent Rate Term Seasoning Group 2 ~~0050430080~~0002763463 Loan Paid in Full 0 56.~~500~~125% 360 21 Group 2 ~~9032416828~~0006937084 Loan Paid in Full 0 6.~~375~~250% 360 18 Group 2 0006955645 Loan Paid in Full 0 5.875% 360 17 Group 2 0007515938 Loan Paid in Full 0 6.000% 360 18 Group 2 0009309060 Loan Paid in Full 0 6.250% 360 19 Group 2 0021703332 Loan Paid in Full 0 5.875% 360 18 Group 2 0025835406 Loan Paid in Full 0 6.750% 360 21 Group 2 0033604003 Loan Paid in Full 0 6.000% 360 17 Group 2 0132993180 Loan Paid in Full 0 6.000% 360 21 Group 2 9040408759 Loan Paid in Full 0 6.250% 360 20 Group 2 9040500621 Loan Paid in Full 0 6.125% 360 17 Group 3 0002803263 Loan Paid in Full 0 5.875% 180 21

Prepayment - Voluntary Prepayments

Summary SMM CPR PSA Current Month 03.~~469~~459% Current Month 534.~~479~~458% Current Month ~~164~~925.~~830~~020% 3 Month Average 1.~~112~~946% 3 Month Average 1220.~~432~~203% 3 Month Average ~~405~~558.~~978~~547% 12 Month Average 12.~~787~~246% 12 Month Average 1618.~~477~~871% 12 Month Average ~~813~~754.~~850~~953% CPR: Current vs 12mo Average* PSA: Current vs 12mo Average* Month Current 12mo Avg. Month Current 12mo Avg. ~~Jul-2004 18.169% N/A Jul-2004 1,600.822% N/A Aug-2004 8.232% N/A Aug-2004 616.752% N/A~~ Sep-2004 9.344% N/A Sep-2004 609.451% N/A Oct-2004 20.113% N/A Oct-2004 1,160.294% N/A Nov-2004 20.094% N/A Nov-2004 1,039.163% N/A Dec-2004 21.983% N/A Dec-2004 1,029.717% N/A Jan-2005 26.680% N/A Jan-2005 1,143.317% N/A Feb-2005 13.529% N/A Feb-2005 533.735% N/A Mar-2005 22.282% 22.319% Mar-2005 815.010% 2,012.389% Apr-2005 16.607% 20.393% Apr-2005 566.722% 1,446.659% May-2005 15.210% 18.663% May-2005 486.382% 1,082.793% Jun-2005 5.479% 16.477% Jun-2005 164.830% 813.850% Jul-2005 20.670% 16.685% Jul-2005 585.792% 729.264% Aug-2005 34.458% 18.871% Aug-2005 925.020% 754.953% *The text reported in the above table is presented *The text reported in the above table is presented graphically on the monthly bond remittance report. The graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at monthly bond remittance report can be viewed online at www.ctslink.com. www.ctslink.com. Group 2 SMM CPR PSA Current Month 4.223% Current Month 40.416% Current Month 1,063.778% 3 Month Average 1.898% 3 Month Average 19.121% 3 Month Average 515.444% 12 Month Average 2.455% 12 Month Average 20.827% 12 Month Average 820.291% CPR: Current vs 12mo Average* PSA: Current vs 12mo Average* Month Current 12mo Avg. Month Current 12mo Avg. Sep-2004 11.849% N/A Sep-2004 740.874% N/A Oct-2004 24.951% N/A Oct-2004 1,385.525% N/A Nov-2004 21.926% N/A Nov-2004 1,095.413% N/A Dec-2004 21.185% N/A Dec-2004 961.147% N/A Jan-2005 33.176% N/A Jan-2005 1,379.743% N/A Feb-2005 13.640% N/A Feb-2005 523.225% N/A Mar-2005 25.335% 25.301% Mar-2005 902.501% 2,136.392% Apr-2005 21.194% 23.109% Apr-2005 705.643% 1,539.096% May-2005 19.301% 21.321% May-2005 603.084% 1,168.105% Jun-2005 7.064% 19.064% Jun-2005 207.960% 900.678% Jul-2005 9.884% 18.330% Jul-2005 274.593% 793.843% Aug-2005 40.416% 20.827% Aug-2005 1,063.778% 820.291% *The text reported in the above table is presented *The text reported in the above table is presented graphically on the monthly bond remittance report. The graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at monthly bond remittance report can be viewed online at www.ctslink.com. www.ctslink.com. Group 3 SMM CPR PSA Current Month 0.979% Current Month 11.132% Current Month 318.762% 3 Month Average 2.056% 3 Month Average 19.518% 3 Month Average 585.666% 12 Month Average 1.532% 12 Month Average 10.444% 12 Month Average 423.527% CPR: Current vs 12mo Average* PSA: Current vs 12mo Average* Month Current 12mo Avg. Month Current 12mo Avg. Sep-2004 0.290% N/A Sep-2004 22.163% N/A Oct-2004 1.504% N/A Oct-2004 99.615% N/A Nov-2004 13.719% N/A Nov-2004 802.355% N/A Dec-2004 24.569% N/A Dec-2004 1,289.725% N/A Jan-2005 0.659% N/A Jan-2005 31.298% N/A Feb-2005 13.168% N/A Feb-2005 572.116% N/A Mar-2005 11.598% 10.055% Mar-2005 463.816% 947.704% Apr-2005 0.218% 10.064% Apr-2005 8.056% 945.580% May-2005 1.049% 8.828% May-2005 36.179% 692.179% Jun-2005 0.398% 6.978% Jun-2005 12.838% 429.492% Jul-2005 47.025% 9.533% Jul-2005 1,425.397% 398.470% Aug-2005 11.132% 10.444% Aug-2005 318.762% 423.527% *The text reported in the above table is presented *The text reported in the above table is presented graphically on the monthly bond remittance report. The graphically on the monthly bond remittance report. The monthly bond remittance report can be viewed online at monthly bond remittance report can be viewed online at www.ctslink.com. www.ctslink.com. Calculation Methodology: Single Month Mortality (SMM): (Partial and full prepayments + Repurchases) / (Beginning Scheduled Balance - Scheduled Principal) Conditional PrePayment Rate (CPR): 1 - ((1 - SMM)^12) PSA Standard Prepayment Model: 100 * CPR / (0.2 * MIN(30,WAS)) Weighted Average Seasoning (WAS): sum((Original Term - Remaining Term)*(Current Scheduled Balance/Deal Scheduled Principal Balance))

~~MASTR~~Realized ~~Asset~~Loss ~~Securitization~~Detail ~~Trust~~Report ~~Series 2004~~-4 ~~Underlying~~Loans ~~Certificate~~with ~~Distribution~~Losses ~~Date:~~during ~~6/27/2005 UNDERLYING DELINQUENCY STATISTICS Subordinated Oustanding Principal~~ Current ~~Cumulative~~Period 30Summary ~~DAY Mortgage Certificates on Underlying Securities Losses Losses~~ # $Loans %Prior ~~Mastr~~Realized 2003-10*Current ~~749,660,351.39~~with ~~0.00~~Principal ~~0.00 5 2,260,178.33 0.30% Mastr 2003-11** 1,179,065,805.70 0.00 0.00 9 4,028,252.57 0.34% Sub-Totals 1,928,726,157.09 0.00 0.00 14 6,288,430.90 0.33% UNDERLYING DELINQUENCY STATISTICS~~ Loss/(~~Continued~~Gain) ~~Subordinated~~Loss 60Group ~~DAY~~Losses 90Balance ~~DAY~~Amount ~~F/C~~Percentage ~~REO~~Group ~~Mortgage~~2 Certificates # $ % # $ % # $ % # $ % Mastr 2003-10* 0 0.00 0.00% 0 0.~~00 0.00~~000% 0Group ~~0.00~~3 0~~.00%~~ 0 0.00 0.00% Mastr 2003-11** 0 0.~~00 0.00~~000% 0Total 0~~.00~~ 0.00% 0 0.00 0.00000% ~~0 0.00 0.00% Sub-Totals 0 0.00 0.00% 0 0.00 0.00% 0 0.00 0.00% 0 0.00 0.00% *Underlying Certificate 1 **Underlying Certificates 2 and 3~~

Realized Loss Report - Collateral Summary

Filing Compare · MORTGAGE ASSET SEC TRANSACTION INC MASTR ASSET SEC TR 2004-4