8-K 1 arc02bc4.txt DECEMBER 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): December 26, 2002 AMORTIZING RESIDENTIAL COLLATERAL TRUST Mortgage Pass-Through Certificates, Series 2002-BC4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-82904-15 Pooling and Servicing Agreement) (Commission Pending (State or other File Number) IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank Minnesota, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 (Former name or former address, if changed since last report) ITEM 5. Other Events On December 26, 2002 a distribution was made to holders of AMORTIZING RESIDENTIAL COLLATERAL TRUST, Mortgage Pass-Through Certificates, Series 2002-BC4 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 2002-BC4 Trust, relating to the December 26, 2002 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. AMORTIZING RESIDENTIAL COLLATERAL TRUST Mortgage Pass-Through Certificates, Series 2002-BC4 Trust By: Wells Fargo Bank, N. A. as Securities Administrator By: /s/ Beth Belfield, Assistant Vice President By: Beth Belfield, Assistant Vice President Date: 12/31/02 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2002-BC4 Trust, relating to the December 26, 2002 distribution. EX-99.1

Amortizing Residential Collateral Mortgage Trus Mortgage Pass-Through Certificates Record Date: ~~10/31/02~~ 11/2530/02 Distribution Date: 12/26/02 ARC Series: 2002-BC4 Contact: Customer Service - CTSLink Wells Fargo Bank Minnesota, 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 A 86358RW45 SEN 21.~~12000~~67000% ~~520~~509,~~214~~170,~~967~~738.6589 ~~949~~732,~~681~~215.3281 1110,~~044~~327,~~228~~241.7657 A-IO 86358RW52 SEN 6.00000% 0.00 1,097,401.9190 0.00 M-1 86358RW60 MEZ 2.~~53000~~08000% 39,905,000.00 8671,~~937~~474.4829 0.00 M-2 86358RW78 MEZ 2.~~98000~~53000% 36,580,000.00 9379,~~868~~693.3459 0.00 M-3 86358RW86 MEZ 3.~~73000~~28000% 29,929,000.00 9684,~~130~~532.2980 0.00 B-1 86358RW94 SUB 43.~~08000~~63000% 12,304,000.00 4338,~~228~~460.0525 0.00 B-2 ARN02B4B2 SUB 7.75000% 3735,~~093~~003,~~866~~552.5472 ~~239~~226,~~564~~064.5561 2,~~090~~350,~~313~~185.8284 X ARC02BC3X SEN 0.00000% 4,324,064.45 0.00 0.00 R1 ARC02B3R1 RES 0.00000% 0.00 0.00 0.00 R2 ARC02B3R2 RES 0.00000% 0.00 0.00 0.00 R3 ARC02B3R3 RES 0.00000% 0.00 0.00 0.00 Totals ~~680~~667,~~350~~216,~~898~~356.6406 2,~~606~~329,~~811~~843.9425 1312,~~134~~677,~~542~~427.5841

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A 0.00 ~~509~~498,~~170~~843,~~738~~497.8932 11,~~993~~059,~~910~~457.0838 0.00 A-IO 0.00 0.00 1,097,401.9190 0.00 M-1 0.00 39,905,000.00 8671,~~937~~474.4829 0.00 M-2 0.00 36,580,000.00 9379,~~868~~693.3459 0.00 M-3 0.00 29,929,000.00 9684,~~130~~532.2980 0.00 B-1 0.00 12,304,000.00 4338,~~228~~460.0525 0.00 B-2 0.00 3532,~~003~~653,~~552~~366.7289 2,~~329~~576,~~878~~250.3745 0.00 X 0.00 4,324,064.45 0.00 0.00 R1 0.00 0.00 0.00 0.00 R2 0.00 0.00 0.00 0.00 R3 0.00 0.00 0.00 0.00 Totals 0.00 ~~667~~654,~~216~~538,~~356~~928.0666 15,~~741~~007,~~354~~270.5266 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) A 542,050,000.00 ~~520~~509,~~214~~170,~~967~~738.6589 0.00 1110,~~044~~327,~~228~~241.7657 0.00 0.00 A-IO 0.00 0.00 0.00 0.00 0.00 0.00 M-1 39,905,000.00 39,905,000.00 0.00 0.00 0.00 0.00 M-2 36,580,000.00 36,580,000.00 0.00 0.00 0.00 0.00 M-3 29,929,000.00 29,929,000.00 0.00 0.00 0.00 0.00 B-1 12,304,000.00 12,304,000.00 0.00 0.00 0.00 0.00 B-2 44,740,000.00 3735,~~093~~003,~~866~~552.5472 0.00 2,~~090~~350,~~313~~185.8284 0.00 0.00 X 4,324,064.45 4,324,064.45 0.00 0.00 0.00 0.00 R1 0.00 0.00 0.00 0.00 0.00 0.00 R2 0.00 0.00 0.00 0.00 0.00 0.00 R3 0.00 0.00 0.00 0.00 0.00 0.00 Totals 709,832,064.45 ~~680~~667,~~350~~216,~~898~~356.6406 0.00 1312,~~134~~677,~~542~~427.5841 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 A 1110,~~044~~327,~~228~~241.7657 ~~509~~498,~~170~~843,~~738~~497.8932 0.~~93934275~~92029056 1110,~~044~~327,~~228~~241.7657 A-IO 0.00 0.00 0.00000000 0.00 M-1 0.00 39,905,000.00 1.00000000 0.00 M-2 0.00 36,580,000.00 1.00000000 0.00 M-3 0.00 29,929,000.00 1.00000000 0.00 B-1 0.00 12,304,000.00 1.00000000 0.00 B-2 2,~~090~~350,~~313~~185.8284 3532,~~003~~653,~~552~~366.7289 0.~~78237713~~72984727 2,~~090~~350,~~313~~185.8284 X 0.00 4,324,064.45 1.00000000 0.00 R1 0.00 0.00 0.00000000 0.00 R2 0.00 0.00 0.00000000 0.00 R3 0.00 0.00 0.00000000 0.00 Totals 1312,~~134~~677,~~542~~427.5841 ~~667~~654,~~216~~538,~~356~~928.0666 0.~~93996368~~92210392 1312,~~134~~677,~~542~~427.5841

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A 542,050,000.00 ~~959~~939.~~71767854~~34275231 0.00000000 2019.~~37492622~~05219365 0.00000000 A-IO 0.00 0.00000000 0.00000000 0.00000000 0.00000000 M-1 39,905,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-2 36,580,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-3 29,929,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 B-1 12,304,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 B-2 44,740,000.00 ~~829~~782.~~09849218~~37712830 0.00000000 4652.~~72136388~~52985785 0.00000000 X 4,324,064.45 1000.00000000 0.00000000 0.00000000 0.00000000 R1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R2 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R3 0.00 0.00000000 0.00000000 0.00000000 0.00000000 (2) All classes are per $1000 denomination.

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution A 0.00000000 2019.~~37492622~~05219365 ~~939~~920.~~34275231~~29055866 0.~~93934275~~92029056 2019.~~37492622~~05219365 A-IO 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 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-1 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 B-2 0.00000000 4652.~~72136388~~52985785 ~~782~~729.~~37712830~~84727068 0.~~78237713~~72984727 4652.~~72136388~~52985785 X 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 R1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R3 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (3) Amount Does Not Include Excess Special Hazard, Bankrupcy, 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 A 542,050,000.00 21.~~12000~~67000% ~~520~~509,~~214~~170,~~967~~738.6589 ~~949~~732,~~681~~215.3281 0.00 0.00 A-IO 0.00 6.00000% 219,480,381.00 1,097,401.91 0.00 0.00 M-1 39,905,000.00 2.~~53000~~08000% 39,905,000.00 8671,~~937~~474.4829 0.00 0.00 M-2 36,580,000.00 2.~~98000~~53000% 36,580,000.00 9379,~~868~~693.3459 0.00 0.00 M-3 29,929,000.00 3.~~73000~~28000% 29,929,000.00 9684,~~130~~532.2980 0.00 0.00 B-1 12,304,000.00 43.~~08000~~63000% 12,304,000.00 4338,~~228~~460.0525 0.00 0.00 B-2 44,740,000.00 7.75000% 3735,~~093~~003,~~866~~552.5472 ~~239~~226,~~564~~064.5561 0.00 0.00 X 4,324,064.45 0.00000% 4,324,064.45 0.00 0.00 0.00 R1 0.00 0.00000% 0.00 0.00 0.00 0.00 R2 0.00 0.00000% 0.00 0.00 0.00 0.00 R3 0.00 0.00000% 0.00 0.00 0.00 0.00 Totals 709,832,064.45 2,~~606~~329,~~811~~843.9426 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 A 0.00 0.00 ~~949~~732,~~681~~215.3281 0.00 ~~509~~498,~~170~~843,~~738~~497.8932 A-IO 0.00 0.00 1,097,401.9190 0.00 ~~219~~179,~~480~~574,~~381~~857.00 M-1 0.00 0.00 8671,~~937~~474.4829 0.00 39,905,000.00 M-2 0.00 0.00 9379,~~868~~693.3459 0.00 36,580,000.00 M-3 0.00 0.00 9684,~~130~~532.2980 0.00 29,929,000.00 B-1 0.00 0.00 4338,~~228~~460.0525 0.00 12,304,000.00 B-2 0.00 0.00 ~~239~~226,~~564~~064.5561 0.00 3532,~~003~~653,~~552~~366.7289 X 0.00 0.00 0.00 0.00 4,324,064.45 R1 0.00 0.00 0.00 0.00 0.00 R2 0.00 0.00 0.00 0.00 0.00 R3 0.00 0.00 0.00 0.00 0.00 Totals 0.00 0.00 2,~~606~~329,~~811~~843.9425 0.00 (4) Amount Does Not Include Excess Special Hazard, Bankrupcy, 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 A 542,050,000.00 21.~~12000~~67000% ~~959~~939.~~71767854~~34275231 1.~~75201793~~35082706 0.00000000 0.00000000 A-IO 0.00 6.00000% 1000.00000000 5.00000002 0.00000000 0.00000000 M-1 39,905,000.00 2.~~53000~~08000% 1000.00000000 21.~~17861120~~79111114 0.00000000 0.00000000 M-2 36,580,000.00 2.~~98000~~53000% 1000.00000000 2.~~56611099~~17861099 0.00000000 0.00000000 M-3 29,929,000.00 3.~~73000~~28000% 1000.00000000 32.~~21194460~~82444452 0.00000000 0.00000000 B-1 12,304,000.00 43.~~08000~~63000% 1000.00000000 3.~~51333306~~12583306 0.00000000 0.00000000 B-2 44,740,000.00 7.75000% ~~829~~782.~~09849218~~37712830 5.~~35459432~~05285226 0.00000000 0.00000000 X 4,324,064.45 0.00000% 1000.00000000 0.00000000 0.00000000 0.00000000 R1 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R2 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R3 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 (5) All classes are per $1000 denomination

Interest Distribution Factors Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (6) Distribution Shortfall Balance A 0.00000000 0.00000000 1.~~75201793~~35082706 0.00000000 ~~939~~920.~~34275231~~29055866 A-IO 0.00000000 0.00000000 54.~~00000002~~99999998 0.00000000 ~~1000~~818.~~00000000~~18181735 M-1 0.00000000 0.00000000 21.~~17861120~~79111114 0.00000000 1000.00000000 M-2 0.00000000 0.00000000 2.~~56611099~~17861099 0.00000000 1000.00000000 M-3 0.00000000 0.00000000 32.~~21194460~~82444452 0.00000000 1000.00000000 B-1 0.00000000 0.00000000 3.~~51333306~~12583306 0.00000000 1000.00000000 B-2 0.00000000 0.00000000 5.~~35459432~~05285226 0.00000000 ~~782~~729.~~37712830~~84727068 X 0.00000000 0.00000000 0.00000000 0.00000000 1000.00000000 R1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R3 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (6) Amount Does Not Include Excess Special Hazard, Bankrupcy,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 1514,~~680~~834,~~793~~864.0014 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) ~~179~~223,~~682~~881.6644 Realized Losses 0.00 Prepayment Penalties ~~162~~225,~~584~~443.3304 Total Deposits 1615,~~023~~284,~~059~~188.9962 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee ~~281~~276,~~705~~917.4796 Payment of Interest and Principal 15,~~741~~007,~~354~~270.5266 Total Withdrawals (Pool Distribution Amount) 1615,~~023~~284,~~059~~188.9962 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee ~~270~~266,~~984~~381.5408 Credit Risk Manager's Fee 87,~~040~~902.7166 Securities Administrator Fee 2,~~680~~634.22 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~281~~276,~~705~~917.4796

OTHER ACCOUNTS Beginning Current Current Ending Account Type Balance Withdrawals Deposits Balance Reserve Fund ~~759~~718,~~079~~693.9566 40,~~386~~499.2983 0.00 ~~718~~678,~~693~~193.6683 Reserve Fund 1,000.00 0.00 0.00 1,000.00

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 83 0 0 83 ~~841~~137,~~347~~986.2425 0.00 0.00 ~~841~~137,~~347~~986.2425 30 Days 86101 10 0 0 87101 1011,~~017~~790,~~968~~581.1206 ~~87,873~~0.0600 0.00 0.00 1011,~~105~~790,~~841~~581.1806 60 Days 3319 1 321 0 3741 31,~~930~~705,194.5615 25,~~898~~802.6607 ~~407~~3,~~203~~361,666.8705 0.00 45,~~363~~092,~~297~~662.0927 90 Days 1011 01 1317 0 2329 1,~~422~~175,~~725~~795.1259 037,034.0053 12,~~768~~391,~~691~~633.1381 0.00 3,~~191~~604,~~416~~463.2593 120 Days 23 10 1715 02 20 ~~132~~202,~~334~~941.9543 ~~327,257~~0.3200 2,~~720~~366,~~842~~239.9602 0123,176.0052 32,~~180~~692,~~435~~356.2397 150 Days 1 02 415 01 519 3292,~~016~~254.4960 0482,957.0032 ~~210~~2,~~343~~464,535.2664 0.00 ~~242~~3,~~359~~039,747.7556 180+ Days 01 0 14 0 15 032,016.0049 0.00 72270,~~131~~948.7582 0.00 72302,~~131~~965.7531 Totals ~~132~~136 117 3872 03 ~~181~~218 1514,~~535~~998,~~239~~783.2432 1683,~~282,376~~780.2817 510,~~179~~855,~~212~~023.9734 0123,176.0052 2126,~~996~~660,~~828~~763.4935 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.~~180750~~068760% 0.000000% 0.000000% 0.~~180750~~068760% 0.~~132994~~022173% 0.000000% 0.000000% 0.~~132994~~022173% 30 Days 12.~~943064~~314921% 0.~~022594~~000000% 0.000000% 0.000000% 12.~~965657~~314921% 1.~~583568~~894613% 0.~~013890~~000000% 0.000000% 0.000000% 1.~~597459~~894613% 60 Days 0.~~745594~~435480% 0.~~022594~~022920% 0.~~067781~~481320% 0.000000% 0.~~835969~~939720% 0.~~621257~~274005% 0.~~004094~~004146% 0.~~064368~~540182% 0.000000% 0.~~689719~~818333% 90 Days 0.~~225938~~252120% 0.~~000000~~022920% 0.~~293719~~389640% 0.000000% 0.~~519657~~664680% 0.~~224894~~188937% 0.~~000000~~005951% 0.~~279582~~384308% 0.000000% 0.~~504476~~579197% 120 Days 0.~~045188~~068760% 0.~~022594~~000000% 0.~~384094~~343800% 0.~~000000~~045840% 0.~~451875~~458400% 0.~~020919~~032610% 0.~~051730~~000000% 0.~~430091~~380228% 0.~~000000~~019793% 0.~~502740~~432631% 150 Days 0.~~022594~~022920% 0.~~000000~~045840% 0.~~090375~~343800% 0.~~000000~~022920% 0.~~112969~~435480% 0.~~005061~~014824% 0.~~000000~~077606% 0.~~033250~~396023% 0.000000% 0.~~038310~~488453% 180+ Days 0.~~000000~~022920% 0.000000% 0.~~022594~~091680% 0.000000% 0.~~022594~~114600% 0.~~000000~~005145% 0.000000% 0.~~011402~~043538% 0.000000% 0.~~011402~~048683% Totals 23.~~982377~~117121% 0.~~248531~~160440% 01.~~858563~~650241% 0.~~000000~~068760% 4.~~089471~~996562% 2.~~455699~~410135% 0.~~202709~~109876% 01.~~818693~~744279% 0.~~000000~~019793% 34.~~477100~~284083%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance ~~179~~223,~~682~~881.6644

COLLATERAL STATEMENT Collateral Description Mixed Fixed Weighted Average Gross Coupon 8.~~909398~~903972% Weighted Average Net Coupon 8.~~403874~~398355% Weighted Average Pass-Through Rate 8.~~398874~~393355% Weighted Average Maturity(Stepdown Calculation ) ~~337~~336 Beginning Scheduled Collateral Loan Count 4,~~495~~426 Number Of Loans Paid In Full 6963 Ending Scheduled Collateral Loan Count 4,~~426~~363 Beginning Scheduled Collateral Balance ~~643~~632,~~257~~212,~~032~~803.1034 Ending Scheduled Collateral Balance ~~632~~621,~~212~~885,~~803~~561.3477 Ending Actual Collateral Balance at 3130-~~Oct~~Nov-2002 ~~632~~622,~~619~~321,~~943~~373.0586 Monthly P &I Constant 5,~~209~~121,~~449~~779.0523 Special Servicing Fee 0.00 Prepayment Penalties ~~162~~225,~~584~~443.3304 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Ending Scheduled Balance for Premium Loans ~~632~~621,~~212~~885,~~803~~561.3477 Scheduled Principal ~~433~~430,~~588~~775.3903 Unscheduled Principal 109,~~610~~896,~~640~~466.3754 Required Overcollateralization Amount 0.00 Overcollateralized Increase Amount 0.00 Overcollateralized reduction Amount 0.00 Specified O/C Amount 4,324,064.45 Overcollateralized Amount 4,324,064.45 Overcollateralized Deficiency Amount 0.00 Base Overcollateralized Amount 0.00 Extra principal distribution Amount 0.00 Excess Cash Amount 2,~~126~~310,~~907~~307.7558

Libor Rate Used 1.8338%

Filing Compare · STRUCTURED ASSET SEC CORP MORT PASS THR CERTS SER 2002 BC4