8-K 1 imh04006_sep.txt SEPTEMBER 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 27, 2004 IMPAC CMB TRUST SERIES 2004-6 Collateralized Asset-Backed Bonds, Series 2004-6 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-113187-04 54-6621653 Pooling and Servicing Agreement) (Commission 54-6621654 (State or other File Number) 54-6621655 jurisdiction 54-6621656 of Incorporation) 54-6621657 54-6621658 IRS EIN c/o Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17 CFR 240.13e-4(c)) ITEM 8.01 Other Events On September 27, 2004 a distribution was made to holders of IMPAC CMB TRUST SERIES 2004-6, Collateralized Asset-Backed Bonds, Series 2004-6 Trust. ITEM 9.01 Financial Statements and Exhibits (c) Exhibits Exhibit Number Description EX-99.1 Monthly report distributed to holders of Collateralized Asset-Backed Bonds, Series 2004-6 Trust, relating to the September 27, 2004 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. IMPAC CMB TRUST SERIES 2004-6 Collateralized Asset-Backed Bonds, Series 2004-6 Trust (Registrant) By: Wells Fargo Bank, N.A. as Indenture Trustee By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 9/29/2004 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Collateralized Asset-Backed Bonds, Series 2004-6 Trust, relating to the September 27, 2004 distribution. EX-99.1

Impac Assets Corp. Mortgage Pass-Through Certificates Record Date: 78/31/2004 Distribution Date: 89/2527/2004 IMH Series: 2004-6 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-A-1 45254TFL3 SEN 12.~~85000~~01500% ~~204~~203,~~641~~123,~~181~~196.6892 ~~315~~375,~~488~~185.4947 12,~~517~~579,~~984~~036.7692 1-A-2 45254TFM1 SEN 12.~~84000~~00500% 1,~~365~~355,~~605~~475,~~544~~772.0762 2,~~093~~491,~~928~~251.4951 1017,~~129~~210,~~771~~353.4567 1-A-3 45254TFN9 SEN 12.~~94000~~10500% ~~151~~150,~~733~~608,~~949~~419.3418 ~~245~~290,~~303~~611.2249 1,~~125~~912,~~530~~261.1652 2-A 45254TFN0 SEN 5.56000% 172,~~416~~101,~~617~~233.6712 ~~798~~797,~~863~~402.6638 ~~315~~810,~~384~~884.5493 M-1 45254TFR0 MEZ 2.~~00000~~16500% 43,~~928~~624,~~053~~547.1775 7386,~~213~~576.4255 ~~303~~522,~~505~~029.4184 M-2 45254TFS8 MEZ 2.~~05000~~21500% 7170,~~383~~889,~~086~~890.3910 ~~121~~143,~~946~~936.1101 ~~493~~848,~~196~~298.3050 M-3 45254TFT6 MEZ 2.~~15000~~31500% 49,~~419~~077,~~059~~616.8122 88104,~~542~~146.4879 ~~341~~587,~~443~~283.5957 M-4 45254TFP4 MEZ 2.~~60000~~76500% 49,~~419~~077,~~059~~616.8122 ~~107~~124,~~074~~391.6331 ~~341~~587,~~443~~283.5957 M-5 45254TFQ2 MEZ 2.~~75000~~91500% 54,~~910~~530,~~066~~684.4669 ~~125~~145,~~835~~710.5753 ~~379~~652,~~381~~537.7731 M-6 45254TFQ3 MEZ 3.~~00000~~16500% 32,~~946~~718,~~039~~410.8781 8294,~~365~~924.1029 ~~227~~391,~~629~~522.0638 CERTS IMH04006C SUB 0.00000% 0.00 32,~~201~~567,~~584~~553.1044 0.00 Totals 2,~~196~~181,~~402~~227,~~658~~387.2763 7,~~254~~221,~~145~~689.2777 1526,~~175~~101,~~270~~492.6321

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses 1-A-1 0.00 ~~203~~200,~~123~~544,~~196~~160.9200 12,~~833~~954,~~473~~222.2539 0.00 1-A-2 0.00 1,~~355~~338,~~475~~265,~~772~~418.6295 1219,~~223~~701,~~699~~605.9418 0.00 1-A-3 0.00 ~~150~~148,~~608~~696,~~419~~157.1866 12,~~370~~202,~~833~~873.3801 0.00 2-A 0.00 ~~172~~171,~~101~~290,~~233~~348.1219 1,~~114~~608,~~248~~287.2031 0.00 M-1 0.00 43,~~624~~102,~~547~~517.7591 ~~376~~608,~~718~~606.8339 0.00 M-2 0.00 70,~~889~~041,~~890~~591.1060 ~~615~~992,~~142~~234.4151 0.00 M-3 0.00 4948,~~077~~490,~~616~~332.2265 ~~429~~691,~~986~~430.0736 0.00 M-4 0.00 4948,~~077~~490,~~616~~332.2265 ~~448~~711,~~518~~674.2288 0.00 M-5 0.00 5453,~~530~~878,~~684~~147.6939 ~~505~~798,~~217~~247.3484 0.00 M-6 0.00 32,~~718~~326,~~410~~888.8143 ~~309~~486,~~994~~446.1667 0.00 CERTS 0.00 0.00 32,~~201~~567,~~584~~553.1044 0.00 Totals 0.00 2,~~181~~155,~~227~~125,~~387~~895.6343 2233,~~429~~323,~~415~~181.9098 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-A-1 205,000,000.00 ~~204~~203,~~641~~123,~~181~~196.6892 0.00 0.00 0.00 0.00 1-A-2 1,368,000,000.00 1,~~365~~355,~~605~~475,~~544~~772.0762 0.00 0.00 0.00 0.00 1-A-3 152,000,000.00 ~~151~~150,~~733~~608,~~949~~419.3418 0.00 0.00 0.00 0.00 2-A 172,500,000.00 172,~~416~~101,~~617~~233.6712 0.00 ~~315~~810,~~384~~884.5493 0.00 0.00 M-1 44,000,000.00 43,~~928~~624,~~053~~547.1775 0.00 ~~303~~522,~~505~~029.4184 0.00 0.00 M-2 71,500,000.00 7170,~~383~~889,~~086~~890.3910 0.00 ~~493~~848,~~196~~298.3050 0.00 0.00 M-3 49,500,000.00 49,~~419~~077,~~059~~616.8122 0.00 ~~341~~587,~~443~~283.5957 0.00 0.00 M-4 49,500,000.00 49,~~419~~077,~~059~~616.8122 0.00 ~~341~~587,~~443~~283.5957 0.00 0.00 M-5 55,000,000.00 54,~~910~~530,~~066~~684.4669 0.00 ~~379~~652,~~381~~537.7731 0.00 0.00 M-6 33,000,000.00 32,~~946~~718,~~039~~410.8781 0.00 ~~227~~391,~~629~~522.0638 0.00 0.00 CERTS 0.00 0.00 0.00 0.00 0.00 0.00 Totals 2,200,000,000.00 2,~~196~~181,~~402~~227,~~658~~387.2763 0.00 24,~~401~~399,~~984~~840.2610 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-A-1 12,~~517~~579,~~984~~036.7692 ~~203~~200,~~123~~544,~~196~~160.9200 0.~~99084486~~97826420 12,~~517~~579,~~984~~036.7692 1-A-2 1017,~~129~~210,~~771~~353.4567 1,~~355~~338,~~475~~265,~~772~~418.6295 0.~~99084486~~97826420 1017,~~129~~210,~~771~~353.4567 1-A-3 1,~~125~~912,~~530~~261.1652 ~~150~~148,~~608~~696,~~419~~157.1866 0.~~99084486~~97826420 1,~~125~~912,~~530~~261.1652 2-A ~~315~~810,~~384~~884.5493 ~~172~~171,~~101~~290,~~233~~348.1219 0.~~99768831~~99298753 ~~315~~810,~~384~~884.5493 M-1 ~~303~~522,~~505~~029.4184 43,~~624~~102,~~547~~517.7591 0.~~99146699~~97960268 ~~303~~522,~~505~~029.4184 M-2 ~~493~~848,~~196~~298.3050 70,~~889~~041,~~890~~591.1060 0.~~99146699~~97960268 ~~493~~848,~~196~~298.3050 M-3 ~~341~~587,~~443~~283.5957 4948,~~077~~490,~~616~~332.2265 0.~~99146699~~97960268 ~~341~~587,~~443~~283.5957 M-4 ~~341~~587,~~443~~283.5957 4948,~~077~~490,~~616~~332.2265 0.~~99146699~~97960268 ~~341~~587,~~443~~283.5957 M-5 ~~379~~652,~~381~~537.7731 5453,~~530~~878,~~684~~147.6939 0.~~99146699~~97960268 ~~379~~652,~~381~~537.7731 M-6 ~~227~~391,~~629~~522.0638 32,~~718~~326,~~410~~888.8143 0.~~99146699~~97960268 ~~227~~391,~~629~~522.0638 CERTS 0.00 0.00 0.00000000 0.00 Totals 1526,~~175~~101,~~270~~492.6321 2,~~181~~155,~~227~~125,~~387~~895.6343 0.~~99146699~~97960268 1526,~~175~~101,~~270~~492.6321

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion 1-A-1 205,000,000.00 ~~998~~990.~~24966673~~84486302 0.00000000 0.00000000 0.00000000 1-A-2 1,368,000,000.00 ~~998~~990.~~24966672~~84486303 0.00000000 0.00000000 0.00000000 1-A-3 152,000,000.00 ~~998~~990.~~24966671~~84486303 0.00000000 0.00000000 0.00000000 2-A 172,500,000.00 ~~999~~997.~~51662417~~68830794 0.00000000 14.~~82831617~~70078220 0.00000000 M-1 44,000,000.00 ~~998~~991.~~36484477~~46699432 0.00000000 611.~~89785023~~86431455 0.00000000 M-2 71,500,000.00 ~~998~~991.~~36484462~~46699441 0.00000000 611.~~89785035~~86431469 0.00000000 M-3 49,500,000.00 ~~998~~991.~~36484465~~46699434 0.00000000 611.~~89785030~~86431455 0.00000000 M-4 49,500,000.00 ~~998~~991.~~36484465~~46699434 0.00000000 611.~~89785030~~86431455 0.00000000 M-5 55,000,000.00 ~~998~~991.~~36484473~~46699436 0.00000000 611.~~89785036~~86431473 0.00000000 M-6 33,000,000.00 ~~998~~991.~~36484455~~46699424 0.00000000 611.~~89785030~~86431455 0.00000000 CERTS 0.00 0.00000000 0.00000000 0.00000000 0.00000000 (2) All Classes are per $1,000.00.

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution 1-A-1 0.00000000 712.~~40480371~~58066790 ~~990~~978.~~84486302~~26419512 0.~~99084486~~97826420 712.~~40480371~~58066790 1-A-2 0.00000000 712.~~40480369~~58066789 ~~990~~978.~~84486303~~26419514 0.~~99084486~~97826420 712.~~40480369~~58066789 1-A-3 0.00000000 712.~~40480368~~58066789 ~~990~~978.~~84486303~~26419513 0.~~99084486~~97826420 712.~~40480368~~58066789 2-A 0.00000000 14.~~82831617~~70078220 ~~997~~992.~~68830794~~98752574 0.~~99768831~~99298753 14.~~82831617~~70078220 M-1 0.00000000 611.~~89785023~~86431455 ~~991~~979.~~46699432~~60267977 0.~~99146699~~97960268 611.~~89785023~~86431455 M-2 0.00000000 611.~~89785035~~86431469 ~~991~~979.~~46699441~~60267972 0.~~99146699~~97960268 611.~~89785035~~86431469 M-3 0.00000000 611.~~89785030~~86431455 ~~991~~979.~~46699434~~60267980 0.~~99146699~~97960268 611.~~89785030~~86431455 M-4 0.00000000 611.~~89785030~~86431455 ~~991~~979.~~46699434~~60267980 0.~~99146699~~97960268 611.~~89785030~~86431455 M-5 0.00000000 611.~~89785036~~86431473 ~~991~~979.~~46699436~~60267982 0.~~99146699~~97960268 611.~~89785036~~86431473 M-6 0.00000000 611.~~89785030~~86431455 ~~991~~979.~~46699424~~60267970 0.~~99146699~~97960268 611.~~89785030~~86431455 CERTS 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-A-1 205,000,000.00 12.~~85000~~01500% ~~204~~203,~~641~~123,~~181~~196.6892 ~~315~~375,~~488~~185.4947 0.00 0.00 1-A-2 1,368,000,000.00 12.~~84000~~00500% 1,~~365~~355,~~605~~475,~~544~~772.0762 2,~~093~~491,~~928~~251.5051 0.00 0.00 1-A-3 152,000,000.00 12.~~94000~~10500% ~~151~~150,~~733~~608,~~949~~419.3418 ~~245~~290,~~303~~611.2250 0.00 0.00 2-A 172,500,000.00 5.56000% 172,~~416~~101,~~617~~233.6712 ~~798~~797,~~863~~402.6638 0.00 0.00 M-1 44,000,000.00 2.~~00000~~16500% 43,~~928~~624,~~053~~547.1775 7386,~~213~~576.4255 0.00 0.00 M-2 71,500,000.00 2.~~05000~~21500% 7170,~~383~~889,~~086~~890.3910 ~~121~~143,~~946~~936.1101 0.00 0.00 M-3 49,500,000.00 2.~~15000~~31500% 49,~~419~~077,~~059~~616.8122 88104,~~542~~146.4879 0.00 0.00 M-4 49,500,000.00 2.~~60000~~76500% 49,~~419~~077,~~059~~616.8122 ~~107~~124,~~074~~391.6331 0.00 0.00 M-5 55,000,000.00 2.~~75000~~91500% 54,~~910~~530,~~066~~684.4669 ~~125~~145,~~835~~710.5753 0.00 0.00 M-6 33,000,000.00 3.~~00000~~16500% 32,~~946~~718,~~039~~410.8781 8294,~~365~~924.1029 0.00 0.00 CERTS 0.00 0.00000% 0.00 0.00 0.00 0.00 Totals 2,200,000,000.00 4,~~052~~654,~~561~~136.1834 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-A-1 0.00 0.00 ~~315~~375,~~488~~185.4947 0.00 ~~203~~200,~~123~~544,~~196~~160.9200 1-A-2 0.01 0.00 2,~~093~~491,~~928~~251.4951 0.00 1,~~355~~338,~~475~~265,~~772~~418.6295 1-A-3 0.00 0.00 ~~245~~290,~~303~~611.2249 0.00 ~~150~~148,~~608~~696,~~419~~157.1866 2-A 0.00 0.00 ~~798~~797,~~863~~402.6638 0.00 ~~172~~171,~~101~~290,~~233~~348.1219 M-1 0.00 0.00 7386,~~213~~576.4255 0.00 43,~~624~~102,~~547~~517.7591 M-2 0.00 0.00 ~~121~~143,~~946~~936.1101 0.00 70,~~889~~041,~~890~~591.1060 M-3 0.00 0.00 88104,~~542~~146.4879 0.00 4948,~~077~~490,~~616~~332.2265 M-4 0.00 0.00 ~~107~~124,~~074~~391.6331 0.00 4948,~~077~~490,~~616~~332.2265 M-5 0.00 0.00 ~~125~~145,~~835~~710.5753 0.00 5453,~~530~~878,~~684~~147.6939 M-6 0.00 0.00 8294,~~365~~924.1029 0.00 32,~~718~~326,~~410~~888.8143 CERTS 0.00 0.00 32,~~201~~567,~~584~~553.1044 0.00 0.00 Totals 0.01 0.00 7,~~254~~221,~~145~~689.2777 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-A-1 205,000,000.00 12.~~85000~~01500% ~~998~~990.~~24966673~~84486302 1.~~53896824~~83017302 0.00000000 0.00000000 1-A-2 1,368,000,000.00 12.~~84000~~00500% ~~998~~990.~~24966672~~84486303 1.~~53064949~~82109029 0.00000000 0.00000000 1-A-3 152,000,000.00 12.~~94000~~10500% ~~998~~990.~~24966671~~84486303 1.~~61383697~~91191776 0.00000000 0.00000000 2-A 172,500,000.00 5.56000% ~~999~~997.~~51662417~~68830794 4.~~63109368~~62262249 0.00000000 0.00000000 M-1 44,000,000.00 2.~~00000~~16500% ~~998~~991.~~36484477~~46699432 1.~~66394136~~96764886 0.00000000 0.00000000 M-2 71,500,000.00 2.~~05000~~21500% ~~998~~991.~~36484462~~46699441 12.~~70554000~~01309105 0.00000000 0.00000000 M-3 49,500,000.00 2.~~15000~~31500% ~~998~~991.~~36484465~~46699434 12.~~78873697~~10397556 0.00000000 0.00000000 M-4 49,500,000.00 2.~~60000~~76500% ~~998~~991.~~36484465~~46699434 2.~~16312384~~51295576 0.00000000 0.00000000 M-5 55,000,000.00 2.~~75000~~91500% ~~998~~991.~~36484473~~46699436 2.~~28791945~~64928236 0.00000000 0.00000000 M-6 33,000,000.00 3.~~00000~~16500% ~~998~~991.~~36484455~~46699424 2.~~49591212~~87649364 0.00000000 0.00000000 CERTS 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 (5) All Classes are per $1,000.00 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-A-1 0.00000000 0.00000000 1.~~53896824~~83017302 0.00000000 ~~990~~978.~~84486302~~26419512 1-A-2 0.00000001 0.00000000 1.~~53064948~~82109029 0.00000000 ~~990~~978.~~84486303~~26419514 1-A-3 0.00000000 0.00000000 1.~~61383697~~91191770 0.00000000 ~~990~~978.~~84486303~~26419513 2-A 0.00000000 0.00000000 4.~~63109368~~62262249 0.00000000 ~~997~~992.~~68830794~~98752574 M-1 0.00000000 0.00000000 1.~~66394136~~96764886 0.00000000 ~~991~~979.~~46699432~~60267977 M-2 0.00000000 0.00000000 12.~~70554000~~01309105 0.00000000 ~~991~~979.~~46699441~~60267972 M-3 0.00000000 0.00000000 12.~~78873697~~10397556 0.00000000 ~~991~~979.~~46699434~~60267980 M-4 0.00000000 0.00000000 2.~~16312384~~51295576 0.00000000 ~~991~~979.~~46699434~~60267980 M-5 0.00000000 0.00000000 2.~~28791945~~64928236 0.00000000 ~~991~~979.~~46699436~~60267982 M-6 0.00000000 0.00000000 2.~~49591212~~87649364 0.00000000 ~~991~~979.~~46699424~~60267970 CERTS 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 Component Statement Component Beginning Ending Beginning Ending Ending Pass-Through Notional Notional Component Component Component Class Rate Balance Balance Balance Balance Percentage M-1-1 2.~~00000~~16500% 0.00 0.00 39,~~929~~633,~~986~~794.7055 39,~~633~~130,~~794~~567.5584 9997.~~08448630~~82641953% M-1-2 2.~~00000~~16500% 0.00 0.00 3,~~998~~990,~~066~~753.4720 3,~~990~~971,~~753~~950.2007 99.~~76883075~~29875249% M-2-1 2.~~05000~~21500% 0.00 0.00 64,~~886~~404,~~228~~916.3915 6463,~~404~~587,~~916~~172.1573 9997.~~08448631~~82641951% M-2-2 2.~~05000~~21500% 0.00 0.00 6,~~496~~484,~~858~~973.0195 6,~~484~~454,~~973~~418.9587 99.~~76883077~~29875261% M-3-1 2.~~15000~~31500% 0.00 0.00 44,~~921~~588,~~235~~018.0387 44,~~588~~021,~~018~~888.8781 9997.~~08448631~~82641951% M-3-2 2.~~15000~~31500% 0.00 0.00 4,~~497~~489,~~824~~597.7836 4,~~489~~468,~~597~~443.3684 99.~~76883089~~29875266% M-4-1 2.~~60000~~76500% 0.00 0.00 44,~~921~~588,~~235~~018.0387 44,~~588~~021,~~018~~888.8781 9997.~~08448631~~82641951% M-4-2 2.~~60000~~76500% 0.00 0.00 4,~~497~~489,~~824~~597.7836 4,~~489~~468,~~597~~443.3684 99.~~76883089~~29875266% M-5-1 2.~~75000~~91500% 0.00 0.00 49,~~912~~542,~~483~~243.3718 4948,~~542~~913,~~243~~209.1879 9997.~~08448630~~82641952% M-5-2 2.~~75000~~91500% 0.00 0.00 4,~~997~~988,~~583~~441.0951 4,~~988~~964,~~441~~937.5160 99.~~76883080~~29875260% M-6-1 3.~~00000~~16500% 0.00 0.00 29,~~947~~725,~~490~~345.0291 29,~~725~~347,~~345~~925.9187 9997.~~08448630~~82641950% M-6-2 3.~~00000~~16500% 0.00 0.00 2,~~998~~993,~~549~~064.8590 2,~~993~~978,~~064~~962.9056 99.~~76883067~~29875266%

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 2334,~~160~~060,~~712~~846.7060 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 2334,~~160~~060,~~712~~846.7060 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee ~~731~~737,~~296~~664.8062 Payment of Interest and Principal 2233,~~429~~323,~~415~~181.9098 Total Withdrawals (Pool Distribution Amount) 2334,~~160~~060,~~712~~846.7060 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee ~~673~~668,~~275~~570.1044 ~~LPMI~~Ambac Fee 011,473.0042 Master Servicing Fee 54,~~910~~530.1064 Owner Trustee Fee 3,~~111~~090.6012 Wells Fargo Bank, NA 0.00 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~731~~737,~~296~~664.8062

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 3 10 0 43 ~~377~~376,~~201~~599.7592 ~~205,347~~0.9100 0.00 ~~582~~376,~~549~~599.6692 30 Days 74 0 0 0 74 1720,~~538,724~~495.3881 0.00 0.00 0.00 1720,~~538,724~~495.3881 60 Days 10 0 0 0 10 ~~161,742~~0.2100 0.00 0.00 0.00 ~~161,742~~0.2100 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 84 3 10 0 127 1720,~~700,466~~495.5981 ~~377~~376,~~201~~599.7592 ~~205,347~~0.9100 0.00 21,~~283~~097,~~016~~095.2573 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.~~037618~~037979% 0.~~012539~~000000% 0.000000% 0.~~050157~~037979% 0.~~017293~~017475% 0.~~009414~~000000% 0.000000% 0.~~026707~~017475% 30 Days 0.~~087774~~050639% 0.000000% 0.000000% 0.000000% 0.~~087774~~050639% 0.~~070544~~033432% 0.000000% 0.000000% 0.000000% 0.~~070544~~033432% 60 Days 0.~~012539~~000000% 0.000000% 0.000000% 0.000000% 0.~~012539~~000000% 0.~~007415~~000000% 0.000000% 0.000000% 0.000000% 0.~~007415~~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.~~100313~~050639% 0.~~037618~~037979% 0.~~012539~~000000% 0.000000% 0.~~150470~~088619% 0.~~077959~~033432% 0.~~017293~~017475% 0.~~009414~~000000% 0.000000% 0.~~104667~~050906%

Delinquency Status By Groups DELINQUENT BANKRUPTCY FORECLOSURE REO Total 1 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 2 10 0 32 ~~327~~326,~~122~~520.7491 ~~205,347~~0.9100 0.00 ~~532~~326,~~470~~520.6591 30 Days 74 0 0 0 74 1720,~~538,724~~495.3881 0.00 0.00 0.00 1720,~~538,724~~495.3881 60 Days 10 0 0 0 10 ~~161,742~~0.2100 0.00 0.00 0.00 ~~161,742~~0.2100 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 84 2 10 0 116 1720,~~700,466~~495.5981 ~~327~~326,~~122~~520.7491 ~~205,347~~0.9100 0.00 21,~~232~~047,~~937~~016.2472 0-29 Days 0.~~028169~~028454% 0.~~014085~~000000% 0.000000% 0.~~042254~~028454% 0.~~016507~~016689% 0.~~010362~~000000% 0.000000% 0.~~026870~~016689% 30 Days 0.~~098592~~056907% 0.000000% 0.000000% 0.000000% 0.~~098592~~056907% 0.~~077647~~036825% 0.000000% 0.000000% 0.000000% 0.~~077647~~036825% 60 Days 0.~~014085~~000000% 0.000000% 0.000000% 0.000000% 0.~~014085~~000000% 0.~~008162~~000000% 0.000000% 0.000000% 0.000000% 0.~~008162~~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.~~112676~~056907% 0.~~028169~~028454% 0.~~014085~~000000% 0.000000% 0.~~154930~~085361% 0.~~085809~~036825% 0.~~016507~~016689% 0.~~010362~~000000% 0.000000% 0.~~112678~~053514% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 2 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 1 0 0 1 50,079.01 0.00 0.00 50,079.01 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 1 0 0 1 0.00 50,079.01 0.00 0.00 50,079.01 0-29 Days 0.~~114286~~114943% 0.000000% 0.000000% 0.~~114286~~114943% 0.~~025098~~025216% 0.000000% 0.000000% 0.~~025098~~025216% 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.~~114286~~114943% 0.000000% 0.000000% 0.~~114286~~114943% 0.000000% 0.~~025098~~025216% 0.000000% 0.000000% 0.~~025098~~025216%

Class 1-A-2 627,000,000.00 28.49999978% 616,316,316.48 28.59769435% 62.096856% 0.000000% Class 1-A-3 475,000,000.00 21.59090893% 467,620,158.82 21.69804371% 6.899651% 0.000000% Class 2A 302,500,000.00 13.74999989% 296,329,810.63 13.75000000% 7.948044% 0.000000% Class M-1 258,500,000.00 11.74999991% 253,227,292.72 11.75000000% 2.000000% 0.000000% Class M-2 187,000,000.00 8.49999993% 183,185,701.12 8.50000000% 3.250000% 0.000000% Class M-3 137,500,000.00 6.24999995% 134,695,368.47 6.25000000% 2.250000% 0.000000% Class M-4 88,000,000.00 3.99999997% 86,205,035.82 4.00000000% 2.250000% 0.000000% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description Mixed Fixed & Arm Weighted Average Gross Coupon 5.~~328576~~328657% Weighted Average Net Coupon 4.~~924043~~960843% Weighted Average Pass-Through Rate 4.~~844980~~845339% Weighted Average Maturity(Stepdown Calculation ) ~~357~~356 Beginning Scheduled Collateral Loan Count 7,~~231~~975 Number Of Loans Paid In Full ~~(744)~~76 Ending Scheduled Collateral Loan Count 7,~~975~~899 Beginning Scheduled Collateral Balance 12,~~997~~181,~~193~~227,~~379~~387.7463 Ending Scheduled Collateral Balance 2,~~181~~155,~~227~~125,~~387~~895.6342 Ending Actual Collateral Balance at 31-~~Jul~~Aug-2004 2,~~181~~155,~~227~~125,~~387~~895.6342 Monthly P &I Constant 10,~~462~~392,~~427~~939.7443 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 2,~~181~~155,~~227~~125,~~387~~895.6342 Scheduled Principal ~~709~~707,~~345~~096.7419 Unscheduled Principal 1425,~~465~~394,~~925~~396.0102

Miscellaneous Reporting Overcollateralization Tagert Amount 0.00 Overcollateralization Amount 0.00 Overcollateralization Increase Amount 0.00 Overcollateralization Reduction 0.00 Net Monthly Excess Cash 32,~~201~~567,~~584~~553.1044 Net Derivative Contract Payment Amount 01,574,155.0075

Group Level Collateral Statement Group 1 2 Total Collateral Description Fixed 15/30 & ARM Fixed 15/30 & ARM Mixed Fixed & Arm Weighted Average Coupon Rate 5.~~221471~~220956 6.~~398271~~398278 5.~~328576~~328657 Weighted Average Net Rate 4.~~821409~~845956 56.~~927209~~101838 4.~~924043~~960843 Weighted Average Maturity ~~357~~356 ~~343~~342 ~~357~~356 Beginning Loan Count 67,~~681~~100 ~~550~~875 7,~~231~~975 Loans Paid In Full ~~(419)~~71 ~~(325)~~5 ~~(744)~~76 Ending Loan Count 7,~~100~~029 ~~875~~870 7,~~975~~899 Beginning Scheduled Balance 1,~~871~~981,~~428~~689,~~544~~726.8824 ~~125~~199,~~764~~537,~~834~~661.8639 12,~~997~~181,~~193~~227,~~379~~387.7463 Ending scheduled Balance 1,~~981~~956,~~689~~528,~~726~~390.2447 ~~199~~198,~~537~~597,~~661~~504.3995 2,~~181~~155,~~227~~125,~~387~~895.6342 Record Date 0708/31/2004 0708/31/2004 0708/31/2004 Principal And Interest Constant 9,~~179~~110,~~257~~590.5014 1,~~283~~282,~~170~~349.2429 10,~~462~~392,~~427~~939.7443 Scheduled Principal ~~492~~488,~~038~~661.5436 ~~217~~218,~~307~~434.2083 ~~709~~707,~~345~~096.7419 Unscheduled Principal 1424,~~317~~672,~~568~~674.9741 ~~148~~721,~~356~~721.0461 1425,~~465~~394,~~925~~396.0102 Scheduled Interest 8,~~687~~621,~~218~~928.9678 1,~~065~~063,~~863~~914.0446 9,~~753~~685,~~082~~843.0024 Servicing Fees ~~623~~619,~~905~~278.8801 49,~~369~~292.2243 ~~673~~668,~~275~~570.1044 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 ~~199~~197,~~464~~564.8796 12,~~403~~386.4350 ~~211~~209,~~868~~951.3046 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 7,~~863~~805,~~848~~085.2181 1,~~004~~002,~~090~~235.3953 8,~~867~~807,~~938~~321.6034 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

Filing Compare · IMPAC CMB Trust SERIES 2004-6