8-K 1 mam04002_jul.txt JULY 8K 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): July 26, 2004 MASTR ADJUSTABLE RATE MORTGAGES TRUST Mortgage Pass-Through Certificates, Series 2004-2 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-106982-17 54-2144769 Pooling and Servicing Agreement) (Commission 54-2144770 (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) ITEM 5. Other Events On July 26, 2004 a distribution was made to holders of MASTR ADJUSTABLE RATE MORTGAGES TRUST, Mortgage Pass-Through Certificates, Series 2004-2 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 2004-2 Trust, relating to the July 26, 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. MASTR ADJUSTABLE RATE MORTGAGES TRUST Mortgage Pass-Through Certificates, Series 2004-2 Trust By: Wells Fargo Bank, N.A. as Master Servicer By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 7/29/04 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2004-2 Trust, relating to the July 26, 2004 distribution. EX-99.1

Mortgage Asset Securitization Transactions, Inc Mortgage Pass-Through Certificates Record Date: 26/2930/~~2004~~04 Distribution Date: 37/2526/~~2004~~04 MARM Series: 2004-2 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 1-A1 576433KB1 SEN 3.~~85010~~87845% 1412,~~253~~620,~~000~~001.0093 4540,~~729~~788.5135 ~~485~~572,~~656~~269.7632 1-A2 576433KC9 SEN 3.~~70010~~72845% 2018,~~619~~256,~~000~~635.0009 6356,~~576~~724.8910 ~~702~~827,~~571~~869.8630 2-A1 576433KD7 SEN 4.~~17805~~15182% 4738,~~222~~260,~~000~~621.0098 ~~164~~132,~~413~~375.1195 ~~435~~1,~~658~~548,532.4855 3-A1 576433KE5 SEN 1.~~48000~~69000% ~~184~~165,~~943~~141,~~000~~460.0015 ~~212~~240,~~889~~326.9471 111,~~795~~462,~~870~~351.8434 M-1 576433KF2 SUB 1.~~69000~~90000% 7,178,000.00 911,~~435~~744.0801 0.00 M-2 576433KG0 SUB 2.~~19000~~40000% 6,461,000.00 1113,~~005~~352.2473 0.00 M-3 576433KA3 SUB 23.~~84000~~05000% 4,163,000.00 910,~~195~~933.6066 0.00 B 576433KH8 SUB 34.~~84000~~05000% 2,297,781.00 68,~~862~~013.7151 0.00 X 576433KJ4 ~~SUB~~SEN 0.00000% 0.0100 0714,920.0063 0.00 R-1 576433KK1 SEN 0.00000% 0.00 0.00 0.00 LR 576433KL9 SEN 0.00000% 0.00 0.00 0.00 Totals ~~287~~254,~~136~~378,~~781~~500.0115 ~~523~~1,~~108~~229,179.0865 314,~~419~~411,~~757~~022.9451

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses 1-A1 0.00 1312,~~767~~047,~~343~~732.2461 ~~531~~613,~~386~~057.2767 0.00 1-A2 0.00 1917,~~916,~~428,765.1479 ~~766~~884,~~148~~593.7540 0.00 2-A1 0.00 4636,~~786~~712,~~341~~089.5243 ~~600~~1,~~071~~680,908.5950 0.00 3-A1 0.00 ~~183~~153,~~147~~679,~~129~~108.1681 211,~~008~~702,~~760~~678.7805 0.00 M-1 0.00 7,178,000.00 911,~~435~~744.0801 0.00 M-2 0.00 6,461,000.00 1113,~~005~~352.2473 0.00 M-3 0.00 4,163,000.00 910,~~195~~933.6066 0.00 B 0.00 2,297,781.00 68,~~862~~013.7151 0.00 X 0.00 ~~858,345.93~~ 0.00 714,920.63 0.00 R-1 0.00 0.00 0.00 0.00 LR 0.00 0.00 0.00 0.00 Totals 0.00 ~~284~~239,~~575~~967,~~368~~477.9964 315,~~942~~640,~~866~~202.0216 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) 1-A1 14,253,000.00 1412,~~253~~620,~~000~~001.0093 0.00 ~~485~~572,~~656~~269.7632 0.00 0.00 1-A2 20,619,000.00 2018,~~619~~256,~~000~~635.0009 0.00 ~~702~~827,~~571~~869.8630 0.00 0.00 2-A1 47,222,000.00 4738,~~222~~260,~~000~~621.0098 0.00 ~~435~~1,~~658~~548,532.4855 0.00 0.00 3-A1 184,943,000.00 ~~184~~165,~~943~~141,~~000~~460.0015 0.00 111,~~795~~462,~~870~~351.8434 0.00 0.00 M-1 7,178,000.00 7,178,000.00 0.00 0.00 0.00 0.00 M-2 6,461,000.00 6,461,000.00 0.00 0.00 0.00 0.00 M-3 4,163,000.00 4,163,000.00 0.00 0.00 0.00 0.00 B 2,297,781.00 2,297,781.00 0.00 0.00 0.00 0.00 R-1 0.00 0.00 0.00 0.00 0.00 0.00 LR 0.00 0.00 0.00 0.00 0.00 0.00 Totals 287,136,781.00 ~~287~~254,~~136~~378,~~781~~500.0015 0.00 314,~~419~~411,~~757~~022.9451 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 1-A1 ~~485~~572,~~656~~269.7632 1312,~~767~~047,~~343~~732.2461 0.~~96592600~~84527697 ~~485~~572,~~656~~269.7632 1-A2 ~~702~~827,~~571~~869.8630 1917,~~916,~~428,765.1479 0.~~96592600~~84527697 ~~702~~827,~~571~~869.8630 2-A1 ~~435~~1,~~658~~548,532.4855 4636,~~786~~712,~~341~~089.5243 0.~~99077425~~77743614 ~~435~~1,~~658~~548,532.4855 3-A1 111,~~795~~462,~~870~~351.8434 ~~183~~153,~~147~~679,~~129~~108.1681 0.~~99028960~~83095391 111,~~795~~462,~~870~~351.8434 M-1 0.00 7,178,000.00 1.00000000 0.00 M-2 0.00 6,461,000.00 1.00000000 0.00 M-3 0.00 4,163,000.00 1.00000000 0.00 B 0.00 2,297,781.00 1.00000000 0.00 R-1 0.00 0.00 0.00000000 0.00 LR 0.00 0.00 0.00000000 0.00 Totals 314,~~419~~411,~~757~~022.9451 ~~283~~239,~~717~~967,~~023~~477.0664 0.~~98809014~~83572532 314,~~419~~411,~~757~~022.9451

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion 1-A1 14,253,000.00 ~~1000~~885.~~00000000~~42776468 0.00000000 3440.~~07400267~~15079773 0.00000000 1-A2 20,619,000.00 ~~1000~~885.~~00000000~~42776517 0.00000000 3440.~~07400262~~15079781 0.00000000 2-A1 47,222,000.00 ~~1000~~810.~~00000000~~22874889 0.00000000 932.~~22575240~~79260832 0.00000000 3-A1 184,943,000.00 ~~1000~~892.~~00000000~~93166084 0.00000000 961.~~71040180~~97775174 0.00000000 M-1 7,178,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-2 6,461,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-3 4,163,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 B 2,297,781.00 1000.00000000 0.00000000 0.00000000 0.00000000 X 0.0100 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 LR 0.00 0.00000000 0.00000000 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 1-A1 0.00000000 3440.~~07400267~~15079773 ~~965~~845.~~92599733~~27696695 0.~~96592600~~84527697 3440.~~07400267~~15079773 1-A2 0.00000000 3440.~~07400262~~15079781 ~~965~~845.~~92599738~~27696736 0.~~96592600~~84527697 3440.~~07400262~~15079781 2-A1 0.00000000 932.~~22575240~~79260832 ~~990~~777.~~77424760~~43614057 0.~~99077425~~77743614 932.~~22575240~~79260832 3-A1 0.00000000 961.~~71040180~~97775174 ~~990~~830.~~28959820~~95390910 0.~~99028960~~83095391 961.~~71040180~~97775174 M-1 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 M-2 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 M-3 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 B 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 X 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 LR 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 1-A1 14,253,000.00 3.~~85010~~87845% 1412,~~253~~620,~~000~~001.0093 4540,~~729~~788.5135 0.00 0.00 1-A2 20,619,000.00 3.~~70010~~72845% 2018,~~619~~256,~~000~~635.0009 6356,~~576~~724.8909 0.00 0.00 2-A1 47,222,000.00 4.~~17805~~15182% 4738,~~222~~260,~~000~~621.0098 ~~164~~132,~~413~~375.1195 0.00 0.00 3-A1 184,943,000.00 1.~~48000~~69000% ~~184~~165,~~943~~141,~~000~~460.0015 ~~212~~240,~~889~~326.9470 0.00 0.00 M-1 7,178,000.00 1.~~69000~~90000% 7,178,000.00 911,~~435~~744.0801 0.00 0.00 M-2 6,461,000.00 2.~~19000~~40000% 6,461,000.00 1113,~~005~~352.2473 0.00 0.00 M-3 4,163,000.00 23.~~84000~~05000% 4,163,000.00 910,~~195~~933.6066 0.00 0.00 B 2,297,781.00 34.~~84000~~05000% 2,297,781.00 68,~~862~~013.7151 0.00 0.00 X 0.0100 0.00000% 0256,532,026.0102 0.00 0.00 0.00 R-1 0.00 0.00000% 0.00 0.00 0.00 0.00 LR 0.00 0.00000% 0.00 0.00 0.00 0.00 Totals 287,136,781.0100 ~~523~~514,~~108~~259.0800 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 1-A1 0.00 0.00 4540,~~729~~788.5135 0.00 1312,~~767~~047,~~343~~732.2461 1-A2 0.00 0.00 6356,~~576~~724.8910 0.00 1917,~~916,~~428,765.1479 2-A1 0.00 0.00 ~~164~~132,~~413~~375.1195 0.00 4636,~~786~~712,~~341~~089.5243 3-A1 (0.0001) 0.00 ~~212~~240,~~889~~326.9471 0.00 ~~183~~153,~~147~~679,~~129~~108.1681 M-1 0.00 0.00 911,~~435~~744.0801 0.00 7,178,000.00 M-2 0.00 0.00 1113,~~005~~352.2473 0.00 6,461,000.00 M-3 0.00 0.00 910,~~195~~933.6066 0.00 4,163,000.00 B 0.00 0.00 68,~~862~~013.7151 0.00 2,297,781.00 X 0.00 0.00 0714,920.0063 0.00 ~~858~~242,~~345~~121,003.9351 R-1 0.00 0.00 0.00 0.00 0.00 LR 0.00 0.00 0.00 0.00 0.00 Totals (0.0001) 0.00 ~~523~~1,~~108~~229,179.0865 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 1-A1 14,253,000.00 3.~~85010~~87845% ~~1000~~885.~~00000000~~42776468 32.~~20841297~~86173788 0.00000000 0.00000000 1-A2 20,619,000.00 3.~~70010~~72845% ~~1000~~885.~~00000000~~42776517 32.~~08341287~~75105922 0.00000000 0.00000000 2-A1 47,222,000.00 4.~~17805~~15182% ~~1000~~810.~~00000000~~22874889 32.~~48170577~~80326860 0.00000000 0.00000000 3-A1 184,943,000.00 1.~~48000~~69000% ~~1000~~892.~~00000000~~93166084 1.~~15111110~~29946362 0.00000000 0.00000000 M-1 7,178,000.00 1.~~69000~~90000% 1000.00000000 1.~~31444413~~63611173 0.00000000 0.00000000 M-2 6,461,000.00 2.~~19000~~40000% 1000.00000000 12.~~70333385~~06666615 0.00000000 0.00000000 M-3 4,163,000.00 23.~~84000~~05000% 1000.00000000 2.~~20888782~~62638962 0.00000000 0.00000000 B 2,297,781.00 34.~~84000~~05000% 1000.00000000 23.~~98666844~~48749946 0.00000000 0.00000000 X 0.0100 0.00000% 0893.~~00000000~~41401880 0.00000000 0.00000000 0.00000000 R-1 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 LR 0.00 0.00000% 0.00000000 0.00000000 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 1-A1 0.00000000 0.00000000 32.~~20841297~~86173788 0.00000000 ~~965~~845.~~92599733~~27696695 1-A2 0.00000000 0.00000000 32.~~08341287~~75105970 0.00000000 ~~965~~845.~~92599738~~27696736 2-A1 0.00000000 0.00000000 32.~~48170577~~80326860 0.00000000 ~~990~~777.~~77424760~~43614057 3-A1 (0.~~00000000~~00000005) 0.00000000 1.~~15111110~~29946367 0.00000000 ~~990~~830.~~28959820~~95390910 M-1 0.00000000 0.00000000 1.~~31444413~~63611173 0.00000000 1000.00000000 M-2 0.00000000 0.00000000 12.~~70333385~~06666615 0.00000000 1000.00000000 M-3 0.00000000 0.00000000 2.~~20888782~~62638962 0.00000000 1000.00000000 B 0.00000000 0.00000000 23.~~98666844~~48749946 0.00000000 1000.00000000 X 0.00000000 0.00000000 02.~~00000000~~48982602 0.00000000 0843.~~00000000~~22531630 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 LR 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 315,~~987~~655,~~367~~222.0894 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 2750,~~899~~139.6768 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 415,~~015~~705,~~266~~362.7562 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 7265,~~400~~160.7346 Payment of Interest and Principal 315,~~942~~640,~~866~~202.0216 Total Withdrawals (Pool Distribution Amount) 415,~~015~~705,~~266~~362.7562 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee 7164,~~674~~434.1049 Miscellaneous Fee ~~726~~725.6397 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 7265,~~400~~160.7346

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 1835 0 0 0 1835 47,~~999~~810,~~873~~916.6632 0.00 0.00 0.00 47,~~999~~810,~~873~~916.6632 60 Days 02 0 0 0 02 0326,264.0098 0.00 0.00 0.00 0326,264.0098 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 01 0 0 0 01 0300,000.00 0.00 0.00 0.00 0300,000.00 150 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 1838 0 0 0 1838 48,~~999~~437,~~873~~181.6630 0.00 0.00 0.00 48,~~999~~437,~~873~~181.6630 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 14.~~902748~~278729% 0.000000% 0.000000% 0.000000% 14.~~902748~~278729% 13.~~756814~~225035% 0.000000% 0.000000% 0.000000% 13.~~756814~~225035% 60 Days 0.~~000000~~244499% 0.000000% 0.000000% 0.000000% 0.~~000000~~244499% 0.~~000000~~134711% 0.000000% 0.000000% 0.000000% 0.~~000000~~134711% 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~~122249% 0.000000% 0.000000% 0.000000% 0.~~000000~~122249% 0.~~000000~~123866% 0.000000% 0.000000% 0.000000% 0.~~000000~~123866% 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 14.~~902748~~645477% 0.000000% 0.000000% 0.000000% 14.~~902748~~645477% 13.~~756814~~483612% 0.000000% 0.000000% 0.000000% 13.~~756814~~483612%

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 ~~384~~703,~~000~~237.0008 0.00 0.00 0.00 ~~384~~703,~~000~~237.0008 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 ~~384~~703,~~000~~237.0008 0.00 0.00 0.00 ~~384~~703,~~000~~237.0008 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 02.~~970874~~150538% 0.000000% 0.000000% 0.000000% 02.~~970874~~150538% 12.~~048707~~165995% 0.000000% 0.000000% 0.000000% 12.~~048707~~165995% 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 02.~~970874~~150538% 0.000000% 0.000000% 0.000000% 02.~~970874~~150538% 12.~~048707~~165995% 0.000000% 0.000000% 0.000000% 12.~~048707~~165995% 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 2 0 0 0 2 1591,~~072,115~~032.4798 0.00 0.00 0.00 1591,~~072,115~~032.4798 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 2 0 0 0 2 1591,~~072,115~~032.4798 0.00 0.00 0.00 1591,~~072,115~~032.4798 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 1.~~315789~~550388% 0.000000% 0.000000% 0.000000% 1.~~315789~~550388% 21.~~124810~~444159% 0.000000% 0.000000% 0.000000% 21.~~124810~~444159% 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 1.~~315789~~550388% 0.000000% 0.000000% 0.000000% 1.~~315789~~550388% 21.~~124810~~444159% 0.000000% 0.000000% 0.000000% 21.~~124810~~444159% 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 1531 0 0 0 1531 36,~~543~~516,~~758~~646.1926 0.00 0.00 0.00 36,~~543~~516,~~758~~646.1926 60 Days 02 0 0 0 02 0326,264.0098 0.00 0.00 0.00 0326,264.0098 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 01 0 0 0 01 0300,000.00 0.00 0.00 0.00 0300,000.00 150 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 1534 0 0 0 1534 37,~~543~~142,~~758~~911.1924 0.00 0.00 0.00 37,~~543~~142,~~758~~911.1924 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 25.~~170767~~201342% 0.000000% 0.000000% 0.000000% 25.~~170767~~201342% 13.~~794078~~860494% 0.000000% 0.000000% 0.000000% 13.~~794078~~860494% 60 Days 0.~~000000~~335570% 0.000000% 0.000000% 0.000000% 0.~~000000~~335570% 0.~~000000~~193281% 0.000000% 0.000000% 0.000000% 0.~~000000~~193281% 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~~167785% 0.000000% 0.000000% 0.000000% 0.~~000000~~167785% 0.~~000000~~177722% 0.000000% 0.000000% 0.000000% 0.~~000000~~177722% 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 25.~~170767~~704698% 0.000000% 0.000000% 0.000000% 25.~~170767~~704698% 14.~~794078~~231497% 0.000000% 0.000000% 0.000000% 14.~~794078~~231497%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 2750,~~899~~139.6768

COLLATERAL STATEMENT Collateral Description Mixed ARM Weighted Average Gross Coupon 6.~~075937~~066600% Weighted Average Net Coupon 5.~~776397~~765190% Weighted Average Pass-Through Rate 5.~~773360~~761794% Weighted Average Maturity(Stepdown Calculation ) ~~358~~354 Beginning Scheduled Collateral Loan Count ~~952~~863 Number Of Loans Paid In Full 645 Ending Scheduled Collateral Loan Count ~~946~~818 Beginning Scheduled Collateral Balance ~~287~~256,~~136~~532,~~781~~026.0102 Ending Scheduled Collateral Balance ~~284~~242,~~575~~121,~~368~~003.9951 Ending Actual Collateral Balance at 2930-~~Feb~~Jun-2004 ~~284~~242,~~598~~196,~~864~~325.1714 Monthly P &I Constant 1,~~522~~390,~~066~~083.0727 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Ending Scheduled Balance for Premium Loans ~~284~~242,~~575~~121,~~368~~003.9951 Scheduled Principal 6893,~~211~~185.9455 Unscheduled Principal 214,~~493~~317,~~200~~836.7096 Required Overcollateralization Amount 0.00 Overcollateralized Increase Amount 0.00 Overcollateralized reduction Amount 0.00 Specified O/C Amount 2,153,525.86 Overcollateralized Amount ~~858~~2,~~345~~153,525.9386 Overcollateralized Deficiency Amount ~~1,295,179~~0.9300 Base Overcollateralized Amount 0.00 Extra principal distribution Amount ~~858,345~~0.3000 Excess Cash Amount ~~858~~714,~~345~~920.3063

Group Level Collateral Statement Group Group 1 Group 2 Group 3 Collateral Description Mixed ARM Mixed ARM Mixed ARM Weighted Average Coupon Rate 5.~~118732~~148358 5.~~676445~~656942 6.~~358423~~335604 Weighted Average Net Rate 4.~~811565~~840318 5.~~375341~~349112 6.~~060720~~036951 Weighted Average Maturity ~~358~~354 ~~358~~354 ~~358~~354 Beginning Loan Count ~~104~~97 ~~153~~134 ~~695~~632 Loans Paid In Full 14 15 436 Ending Loan Count ~~103~~93 ~~152~~129 ~~691~~596 Beginning Scheduled Balance 3733,~~496~~854,~~443~~652.0053 5042,~~775~~457,~~924~~438.0007 ~~198~~180,~~864~~219,~~415~~935.0042 Ending scheduled Balance 3632,~~606~~454,~~455~~513.1891 5040,~~449~~908,~~613~~905.6652 ~~197~~168,~~519~~757,~~300~~584.1508 Record Date 0206/2930/2004 0206/2930/2004 0206/2930/2004 Principal And Interest Constant ~~176~~162,~~331~~379.3076 ~~256~~220,~~296~~409.4846 1,~~089~~007,~~438~~294.2905 Scheduled Principal 1617,~~386~~133.1121 1620,~~107~~260.5308 3555,~~718~~792.3026 Unscheduled Principal ~~873~~1,~~601~~383,005.9741 ~~310~~1,~~202~~528,272.4547 111,~~309~~406,~~396~~559.2808 Scheduled Interest ~~159~~145,~~945~~246.1955 ~~240~~200,~~188~~149.9538 1951,~~053,719~~501.9979 Servicing Fees 98,~~598~~690.0547 1210,~~740~~891.6937 4944,~~335~~852.3665 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 ~~123~~122.1852 0.00 603.45 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 ~~150~~136,~~223~~433.9656 ~~227~~189,~~448~~258.2601 1906,~~003,781~~045.1869 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 Pass-Through Rate 4.~~807623~~835975 5.~~375341~~349112 6.~~057079~~032933

Group Level Collateral Statement Group Total Collateral Description Mixed ARM Weighted Average Coupon Rate 6.~~075937~~066600 Weighted Average Net Rate 5.~~776397~~765190 Weighted Average Maturity ~~358~~354 Beginning Loan Count ~~952~~863 Loans Paid In Full 645 Ending Loan Count ~~946~~818 Beginning Scheduled Balance ~~287~~256,~~136~~532,~~782~~026.0002 Ending scheduled Balance ~~284~~242,~~575~~121,~~368~~003.9951 Record Date 0206/2930/2004 Principal And Interest Constant 1,~~522~~390,~~066~~083.0727 Scheduled Principal 6893,~~211~~185.9455 Unscheduled Principal 214,~~493~~317,~~200~~836.7096 Scheduled Interest 1,~~453~~296,~~854~~897.1372 Servicing Fees 7164,~~674~~434.1049 Master Servicing Fees 0.00 Trustee Fee 0.00 FRY Amount 0.00 Special Hazard Fee 0.00 Other Fee ~~726~~725.6397 Pool Insurance Fee 0.00 Spread Fee 1 0.00 Spread Fee 2 0.00 Spread Fee 3 0.00 Net Interest 1,~~381~~231,~~453~~737.4026 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Percentage of Cumulative Losses 0.0000 Prepayment Penalties 0.00 Special Servicing Fee 0.00 Pass-Through Rate 5.~~773360~~761794

Filing Compare · MASTR ADJUSTABLE RATE MORTGAGES TRUST 2004-2