8-K 1 arc01bc4.txt JULY 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): July 25, 2001 AMORTIZING RESIDENTIAL COLLATERAL TRUST Mortgage Pass-Through Certificates, Series 2001-BC4 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-35026-17 Pooling and Servicing Agreement) (Commission (State or other File Number) Pending jurisdiction IRS EIN of Incorporation) c/o Wells Fargo Bank Minnesota, N.A. 11000 Broken Land Parkway Columbia, MD 21044 (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 25, 2001 a distribution was made to holders of AMORTIZING RESIDENTIAL COLLATERAL TRUST, Mortgage Pass-Through Certificates, Series 2001-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 2001-BC4 Trust, relating to the July 25, 2001 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 2001-BC4 Trust By: Wells Fargo Bank Minnesota, NA, as Trustee By: /s/ Sherri Sharps, Vice President By: Sherri Sharps, Vice President Date: 7/30/01 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2001-BC4 Trust, relating to the July 25, 2001 distribution. EX-99.1

Amortizing Residential Collateral Mortgage Trust Mortgage Pass-Through Certificates Record Date: 56/3130/01 Distribution Date: 67/25/01 ARC Series: 2001-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-1 86358RCY1 SEQ 43.~~13000~~91500% ~~334~~330,~~986~~141,~~000~~863.0062 ~~653~~1,~~313~~077,087.7582 4,~~844~~848,~~136~~263.3871 A-2 86358RCZ8 SEQ 4.~~28000~~06500% ~~104~~102,~~312~~968,~~000~~893.0060 ~~210~~348,~~826~~807.1412 1,~~343~~421,~~106~~515.4073 A-IO 86358RDA2 IO 6.00000% 0.00 ~~358~~632,~~468~~591.2909 0.00 M-1 86358RDB0 SEQ 4.~~61000~~39500% 14,058,000.00 3051,~~603~~487.4942 0.00 M-2 86358RDC8 SEQ 54.~~02000~~80500% 9,372,000.00 2237,~~216~~527.8505 0.00 B 86358RDD6 SEQ 5.~~92000~~70500% 5,858,000.00 1627,~~376~~849.3691 0.00 X ARC01001X SEQ 0.00000% ~~826~~0.3300 21,~~258~~327,~~685~~045.1684 ~~826~~0.3300 P ARC01001P SEQ 0.00000% 0.00 ~~167~~146,~~480~~952.7098 0.00 R-1 ARC0101R1 RES 0.00000% 0.00 0.00 0.00 R-2 ARC0101R2 RES 0.00000% 0.00 0.00 0.00 R-3 ARC0101R3 RES 0.00000% 0.00 0.00 0.00 Totals ~~468~~462,~~586~~398,~~826~~757.3322 3,~~717~~649,~~970~~349.7423 6,~~188~~269,~~069~~779.1144

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 ~~330~~325,~~141~~293,~~863~~599.6291 5,~~497~~925,~~450~~351.1353 0.00 A-2 0.00 ~~102~~101,~~968~~547,~~893~~377.6087 1,~~553~~770,~~932~~322.5485 0.00 A-IO 0.00 0.00 ~~358~~632,~~468~~591.2909 0.00 M-1 0.00 14,058,000.00 3051,~~603~~487.4942 0.00 M-2 0.00 9,372,000.00 2237,~~216~~527.8505 0.00 B 0.00 5,858,000.00 1627,~~376~~849.3691 0.00 X 0.00 0.00 21,~~259~~327,~~511~~045.4984 0.00 P 0.00 0.00 ~~167~~146,~~480~~952.7098 0.00 R-1 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 R-3 0.00 0.00 0.00 0.00 Totals 0.00 ~~462~~456,~~398~~128,~~757~~977.2278 9,~~906~~919,~~039~~128.8567 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-1 334,986,000.00 ~~334~~330,~~986~~141,~~000~~863.0062 0.00 4,~~844~~848,~~136~~263.3871 0.00 0.00 A-2 104,312,000.00 ~~104~~102,~~312~~968,~~000~~893.0060 0.00 1,~~343~~421,~~106~~515.4073 0.00 0.00 A-IO 0.00 0.00 0.00 0.00 0.00 0.00 M-1 14,058,000.00 14,058,000.00 0.00 0.00 0.00 0.00 M-2 9,372,000.00 9,372,000.00 0.00 0.00 0.00 0.00 B 5,858,000.00 5,858,000.00 0.00 0.00 0.00 0.00 X 826.33 ~~826~~0.3300 0.00 0.00 0.00 0.00 P 0.00 0.00 0.00 0.00 0.00 0.00 R-1 0.00 0.00 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 0.00 0.00 R-3 0.00 0.00 0.00 0.00 0.00 0.00 Totals 468,586,826.33 ~~468~~462,~~586~~398,~~826~~757.3322 0.00 6,~~187~~269,~~242~~779.7844 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-1 4,~~844~~848,~~136~~263.3871 ~~330~~325,~~141~~293,~~863~~599.6291 0.~~98553929~~97106625 4,~~844~~848,~~136~~263.3871 A-2 1,~~343~~421,~~106~~515.4073 ~~102~~101,~~968~~547,~~893~~377.6087 0.~~98712414~~97349661 1,~~343~~421,~~106~~515.4073 A-IO 0.00 0.00 0.00000000 0.00 M-1 0.00 14,058,000.00 1.00000000 0.00 M-2 0.00 9,372,000.00 1.00000000 0.00 B 0.00 5,858,000.00 1.00000000 0.00 X ~~826~~0.3300 0.00 0.00000000 ~~826~~0.3300 P 0.00 0.00 0.00000000 0.00 R-1 0.00 0.00 0.00000000 0.00 R-2 0.00 0.00 0.00000000 0.00 R-3 0.00 0.00 0.00000000 0.00 Totals 6,~~188~~269,~~069~~779.1144 ~~462~~456,~~398~~128,~~757~~977.2278 0.~~98679419~~97341400 6,~~188~~269,~~069~~779.1144

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 334,986,000.00 ~~1000~~985.~~00000000~~53928707 0.00000000 14.~~46071293~~47303383 0.00000000 A-2 104,312,000.00 ~~1000~~987.~~00000000~~12414296 0.00000000 1213.~~87585704~~62753787 0.00000000 A-IO 0.00 0.00000000 0.00000000 0.00000000 0.00000000 M-1 14,058,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 M-2 9,372,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 B 5,858,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 X 826.33 ~~1000~~0.00000000 0.00000000 0.00000000 0.00000000 P 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00 0.00000000 0.00000000 0.00000000 0.00000000 R-3 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 A-1 0.00000000 14.~~46071293~~47303383 ~~985~~971.~~53928707~~06625325 0.~~98553929~~97106625 14.~~46071293~~47303383 A-2 0.00000000 1213.~~87585704~~62753787 ~~987~~973.~~12414296~~49660509 0.~~98712414~~97349661 1213.~~87585704~~62753787 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 B 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 X 0.00000000 ~~1,000~~0.00000000 0.00000000 0.00000000 ~~1,000~~0.00000000 P 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-3 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-1 334,986,000.00 43.~~13000~~91500% ~~334~~330,~~986~~141,~~000~~863.0062 ~~653~~1,~~315~~077,087.7583 0.00 0.00 A-2 104,312,000.00 4.~~28000~~06500% ~~104~~102,~~312~~968,~~000~~893.0060 ~~210~~348,~~826~~807.1413 0.00 0.00 A-IO 0.00 6.00000% 126,518,220.00 ~~358~~632,~~468~~591.2910 0.00 0.00 M-1 14,058,000.00 4.~~61000~~39500% 14,058,000.00 3051,~~603~~487.4943 0.00 0.00 M-2 9,372,000.00 54.~~02000~~80500% 9,372,000.00 2237,~~216~~527.8505 0.00 0.00 B 5,858,000.00 5.~~92000~~70500% 5,858,000.00 1627,~~376~~849.3691 0.00 0.00 X 826.33 0.00000% ~~826~~0.3300 0.00 0.00 0.00 P 0.00 0.00000% 0.00 0.00 0.00 0.00 R-1 0.00 0.00000% 0.00 0.00 0.00 0.00 R-2 0.00 0.00000% 0.00 0.00 0.00 0.00 R-3 0.00 0.00000% 0.00 0.00 0.00 0.00 Totals 468,586,826.33 12,~~291~~175,~~806~~350.8845 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-1 0.00 0.00 ~~653~~1,~~313~~077,087.7582 0.00 ~~330~~325,~~141~~293,~~863~~599.6291 A-2 0.00 0.00 ~~210~~348,~~826~~807.1412 0.00 ~~102~~101,~~968~~547,~~893~~377.6087 A-IO 0.00 0.00 ~~358~~632,~~468~~591.2909 0.00 ~~114~~126,~~991~~518,~~004~~220.00 M-1 0.00 0.00 3051,~~603~~487.4942 0.00 14,058,000.00 M-2 0.00 0.00 2237,~~216~~527.8505 0.00 9,372,000.00 B 0.00 0.00 1627,~~376~~849.3691 0.00 5,858,000.00 X 0.00 0.00 21,~~258~~327,~~685~~045.1684 0.00 0.00 P 0.00 0.00 ~~167~~146,~~480~~952.7098 0.00 0.00 R-1 0.00 0.00 0.00 0.00 0.00 R-2 0.00 0.00 0.00 0.00 0.00 R-3 0.00 0.00 0.00 0.00 0.00 Totals 0.00 0.00 3,~~717~~649,~~970~~349.7423 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-1 334,986,000.00 43.~~13000~~91500% ~~1000~~985.~~00000000~~53928707 13.~~95027777~~21532192 0.00000000 0.00000000 A-2 104,312,000.00 4.~~28000~~06500% ~~1000~~987.~~00000000~~12414296 23.~~02111109~~34388306 0.00000000 0.00000000 A-IO 0.00 6.00000% 1000.00000000 25.~~83333333~~00000000 0.00000000 0.00000000 M-1 14,058,000.00 4.~~61000~~39500% 1000.00000000 23.~~17694480~~66250036 0.00000000 0.00000000 M-2 9,372,000.00 54.~~02000~~80500% 1000.00000000 24.~~37055591~~00416667 0.00000000 0.00000000 B 5,858,000.00 5.~~92000~~70500% 1000.00000000 24.~~79555480~~75416695 0.00000000 0.00000000 X 826.33 0.00000% ~~1000~~0.00000000 0.00000000 0.00000000 0.00000000 P 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 R-3 0.00 0.00000% 0.00000000 0.00000000 0.00000000 0.00000000 (5) ~~Per~~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 A-1 0.00000000 0.00000000 13.~~95027180~~21532189 0.00000000 ~~985~~971.~~53928707~~06625325 A-2 0.00000000 0.00000000 23.~~02111109~~34388297 0.00000000 ~~987~~973.~~12414296~~49660509 A-IO 0.00000000 0.00000000 24.~~83333333~~99999992 0.00000000 ~~908~~1000.~~88888573~~00000000 M-1 0.00000000 0.00000000 23.~~17694480~~66249964 0.00000000 1000.00000000 M-2 0.00000000 0.00000000 24.~~37055591~~00416667 0.00000000 1000.00000000 B 0.00000000 0.00000000 24.~~79555480~~75416695 0.00000000 1000.00000000 X 0.00000000 0.00000000 ~~2733393~~1605951.~~63208403~~42376532 0.00000000 0.00000000 P 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 R-3 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 10,~~507~~511,~~105~~496.6661 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Losses 0.00 Total Deposits 10,~~507~~511,~~105~~496.6661 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee ~~601~~592,~~063~~367.8194 Payment of Interest and Principal 9,~~906~~919,~~041~~128.8567 Total Withdrawals (Pool Distribution Amount) 10,~~507~~511,~~105~~496.6661 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee ~~195~~192,~~101~~666.9522 Trustee Fee ~~976~~963.1923 Loss Mitigation Advisors Fee 5,~~857~~779.3498 MGIC Insurance Premiums ~~373~~368,~~166~~197.9187 Guarantee Fee 2524,~~961~~760.4264 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~601~~592,~~063~~367.8194

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 011 0 0 0 011 01,363,894.0043 0.00 0.00 0.00 01,363,894.0043 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 011 0 0 0 011 01,363,894.0043 0.00 0.00 0.00 01,363,894.0043 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.~~000000~~314825% 0.000000% 0.000000% 0.000000% 0.~~000000~~314825% 0.~~000000~~299015% 0.000000% 0.000000% 0.000000% 0.~~000000~~299015% 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~~314825% 0.000000% 0.000000% 0.000000% 0.~~000000~~314825% 0.~~000000~~299015% 0.000000% 0.000000% 0.000000% 0.~~000000~~299015%

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 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 01 0 0 0 01 0111,123.0078 0.00 0.00 0.00 0111,123.0078 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 01 0 0 0 01 0111,123.0078 0.00 0.00 0.00 0111,123.0078 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 0.~~000000~~292398% 0.000000% 0.000000% 0.000000% 0.~~000000~~292398% 0.~~000000~~408146% 0.000000% 0.000000% 0.000000% 0.~~000000~~408146% 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~~292398% 0.000000% 0.000000% 0.000000% 0.~~000000~~292398% 0.~~000000~~408146% 0.000000% 0.000000% 0.000000% 0.~~000000~~408146% 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 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 010 0 0 0 010 01,252,770.0065 0.00 0.00 0.00 01,252,770.0065 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 010 0 0 0 010 01,252,770.0065 0.00 0.00 0.00 01,252,770.0065 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 0.~~000000~~357782% 0.000000% 0.000000% 0.000000% 0.~~000000~~357782% 0.~~000000~~391001% 0.000000% 0.000000% 0.000000% 0.~~000000~~391001% 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~~357782% 0.000000% 0.000000% 0.000000% 0.~~000000~~357782% 0.~~000000~~391001% 0.000000% 0.000000% 0.000000% 0.~~000000~~391001% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 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% DELINQUENT BANKRUPTCY FORECLOSURE REO Total 4 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%

COLLATERAL STATEMENT Collateral Description Fixed & Mixed ARM Weighted Average Gross Coupon 10.~~631560~~626580% Weighted Average Net Coupon 9.~~176408~~171046% Weighted Average Pass-Through Rate 9.~~173909~~168546% Weighted Average Maturity(Stepdown Calculation ) ~~353~~352 Beginning Scheduled Collateral Loan Count 3,~~585~~539 Number Of Loans Paid In Full 4645 Ending Scheduled Collateral Loan Count 3,~~539~~494 Beginning Scheduled Collateral Balance ~~468~~462,~~586~~398,~~826~~757.3322 Ending Scheduled Collateral Balance ~~462~~456,~~398~~128,~~757~~977.2278 Ending Actual Collateral Balance at 3130-~~May~~Jun-2001 ~~462~~456,~~398~~128,~~757~~977.2278 Monthly P &I Constant 4,~~352~~295,~~369~~206.8474 Ending Scheduled Balance for Premium Loans ~~462~~456,~~398~~128,~~757~~977.2278 Required Overcollateralization Amount 0.00 Overcollateralized Increase Amount 0.00 Overcollateralized reduction Amount 826.33 Specified O/C Amount 0.00 Overcollateralized Amount 0.00 Overcollateralized Deficiency Amount 0.00 Base Overcollateralized Amount 0.00 Extra principal distribution Amount 0.00 Excess Cash Amount 21,~~285~~351,~~789~~806.48

Prepayment Penalties $~~167~~146,~~480~~952.7098 Cumulative Guarantee Fee $2550,~~961~~722.4206

Group Level Collateral Statement Group 1 2 3 4 Collateral Description Fixed 15/30 & AARM Fixed 15/30 & AARM Fixed 15/30 & AARM ~~Fixed 15/30 & A~~ Weighted Average Coupon Rate 11.~~349778~~327860 10.~~746885~~745183 10.~~463051~~499411 ~~10.084263~~ Weighted Average Net Rate 9.~~934167~~917453 9.~~287801~~285285 9.~~181481~~157781 ~~8.611771~~ Weighted Average Maturity ~~351~~350 ~~351~~350 ~~353~~352 ~~353~~ Beginning Loan Count ~~354~~347 2,~~862~~829 4241 ~~327~~ Loans Paid In Full 75 3334 1 5 Ending Loan Count ~~347~~342 2,~~829~~795 4140 ~~322~~ Beginning Scheduled Balance 2827,~~438~~577,~~400~~931.8059 ~~328~~324,~~885~~897,~~925~~628.4640 6,~~719~~644,~~058~~504.7727 ~~104,547,441.30~~ Ending scheduled Balance 27,~~577~~226,~~931~~486.5948 ~~324~~320,~~897~~400,~~628~~809.4080 6,~~644~~623,~~504~~343.2722 ~~103,278,692.96~~ Record Date 0506/3130/2001 0506/3130/2001 0506/3130/2001 ~~05/31/2001~~ Principal And Interest Constant ~~284~~275,~~019~~310.2219 3,~~079~~043,~~863~~432.5095 61,~~675~~268.7758 ~~926,811.35~~ Scheduled Principal 1514,~~082~~977.4574 134,~~447~~195.3783 3,~~090~~132.8943 ~~48,241.48~~ Unscheduled Principal ~~841~~336,~~386~~467.7637 34,~~853~~362,~~849~~622.6977 7118,~~463~~028.6162 ~~1,220,506.86~~ Scheduled Interest ~~268~~260,~~936~~332.7745 2,~~945~~909,~~416~~237.1312 58,~~584~~136.8815 ~~878,569.87~~ Servicing Fees 3332,~~484~~355.0997 ~~399~~394,~~208~~587.5675 7,~~506~~414.~~34 128,069.~~87 Master Servicing Fees 0.00 0.00 0.00 ~~0.00~~ Trustee Fee 5957.2144 ~~685~~676.1888 1413.0184 ~~217.79~~ FRY Amount 0.00 0.00 0.00 ~~0.00~~ Special Hazard Fee 0.00 0.00 0.00 ~~0.00~~ Other Fee 0.00 0.00 0.00 ~~0.00~~ Pool Insurance Fee 0.00 0.00 0.00 ~~0.00~~ Spread Fee 1 0.00 0.00 0.00 ~~0.00~~ Spread Fee 2 0.00 0.00 0.00 ~~0.00~~ Spread Fee 3 0.00 0.00 0.00 ~~0.00~~ Net Interest ~~235~~227,~~393~~919.4704 2,~~545~~513,~~522~~972.3949 5150,~~064~~707.5344 ~~750,282.21~~ Realized Loss Amount 0.00 0.00 0.00 ~~0.00~~ Cumulative Realized Loss 0.00 0.00 0.00 ~~0.00~~ Percentage of Cumulative Losses 0.00 0.00 0.00 0.00 Group Total Collateral Description Fixed & Mixed A Weighted Average Coupon Rate 10.631560 Weighted Average Net Rate 9.176408 Weighted Average Maturity 353 Beginning Loan Count 3,585 Loans Paid In Full 46 Ending Loan Count 3,539 Beginning Scheduled Balance 468,590,826.33 Ending scheduled Balance 462,398,757.22 Record Date 05/31/2001 Principal And Interest Constant 4,352,369.84 Scheduled Principal 200,862.19 Unscheduled Principal 5,987,206.92 Scheduled Interest 4,151,507.65 Servicing Fees 568,268.86 Master Servicing Fees 0.00 Trustee Fee 976.19 FRY Amount 0.00 Special Hazard Fee 0.00 Other Fee 0.00 Pool Insurance Fee 0.00 Spread Fee 1 0.00 Spread Fee 2 0.00 Spread Fee 3 0.00 Net Interest 3,582,262.60 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Percentage of Cumulative Losses 0.00

Filing Compare · STRUCTURED ASSET SECURITIES CORP MOR PAS THR CER SR 2001-BC4