Table of Contents

Certificate Payment Report

Certificate Report

Cash Reconciliation

Other Related Information

Pool and Performance Detail

Certificate Interest Reconcilation

Certificate Reconciliation Detail

Interest Shortfall Reconciliation

Current Ratings

Performance History

Payoff History

Mortgage Payoff Detail

Delinquency Detail

Stratification - Mortgage Balances/Rates

Stratification - Amortization Terms

Stratification - Property Types

Stratification - Geographic Distribution

Stratification - Financial Ratios and Other

Historical Loss Liquidation

Historical Bond/Collateral Realized Loss Reconciliation

Loan Level Detail

Specially Serviced Loan Detail

Specially Serviced Loan Comments

Appraisal Reduction Detail

Appraisal Reduction Comments

Modifications/Extensions Detail/Description

REO Historical Detail

Material Breaches and Document Defects

Extraordinary Event

Rule 15Ga Information

COMM 2015-LC21

Mortgage Pass-Through Certificates

August 12, 2025

Page 1 of 46

1761 E. St. Andrew Place
Santa Ana, CA 92705

Website:
https://tss.sfs.db.com/investpublic

Associated Files

Supplements
Pool Periodic
Bond Periodic
Loan Periodic
Loan Setup
Governing Documents
Annex A

Factor Information:

(800) 735-7777

Main Phone Number:

714-247-6000

Depositor

Deutsche Mortgage & Asset Receiving Corporation

Master Servicer

Midland Loan Services, a Division of PNC Bank,
National Association

Special Servicer

Rialto Capital Advisors, LLC

Underwriters

Goldman Sachs & Co.
Deutsche Bank Securities, Inc.
KeyBanc Capital Markets Inc.
Cantor Fitzgerald & Co.

Rating Agencies

Moody's Investors Service, Inc.
DBRS, Inc.
Kroll Bond Rating Agency, Inc.

Trustee

Wilmington Trust, National Association

Certificate Administrator

Deutsche Bank Trust Company Americas

Operating Advisor

Park Bridge Lender Services LLC

Controlling Rep/Class

RREF III Debt AIV, LP/Class G

Contacts

Dates

Prior Distribution Date

Distribution Count

Current Distribution Date

Next Distribution Date

Trust Collection Period

Record Date

Determination Date

Closing Date

Cutoff Date

Initial Distribution Date

08/12/2025

122

07/11/2025

09/12/2025

07/31/2025

06/01/2015

06/18/2015

07/10/2015

03/10/2048

08/06/2025

07/08/2025

Rated Final Payment Date

In connection with the Certificate Administrator's preparation of this Statement to Certificateholders, the Certificate Administrator is conclusively relying upon, and has not independently
verified, information provided to it by various third parties, including the Master Servicer, Special Servicer and other parties to the transaction. The Certificate Administrator makes no
representations as to the completeness, reliability, accuracy or suitability for any purpose of the information provided to it by such third parties.

Administrator

Casey Santiago

(714)247-6019
casey-a.santiago@db.com

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Beginning

Balance

Principal

Non-Prin Adj/

Loss/Accretion

Ending

Balance

Interest

Distributed

Excess/

Shortfall

Current

Original

Current

Original

Balance

Class

Class Type

CUSIP

Balance and Principal Components

Interest

Pass-Through Rate

Credit Support

Position

% (*)

A-1

12593FAY0

57,900,000.00

0.00

100.00%

0.000000%

30.02%

0.00

A-2

12593FBA1

181,050,000.00

0.00

100.00%

0.000000%

30.02%

0.00

A-SB

12593FBB9

90,150,000.00

0.00

100.00%

0.000000%

30.02%

0.00

A-3

12593FBC7

225,000,000.00

0.00

100.00%

0.000000%

30.02%

0.00

A-4

12593FBD5

371,223,000.00

0.00

100.00%

0.000000%

30.02%

0.00

X-A

SR/NTL

12593FBE3

1,042,641,000.00

0.00

0.00%

0.000000%

0.00%

0.00

A-M

12593FBF0

117,318,000.00

0.00

100.00%

0.000000%

21.14%

0.00

X-B

SUB/NTL

12593FAA2

118,970,000.00

60,258,402.68

0.00

54,315,627.01

0.00

0.00%

0.000000%

0.00%

0.00

X-C

SUB/NTL

12593FAC8

59,485,000.00

0.00

59,485,000.00

0.00

0.00%

0.000000%

0.00%

0.00

X-D

SUB/NTL

12593FAE4

34,700,000.00

0.00

34,700,000.00

34,569.16

0.00

0.00%

1.195475%

1.191239%

0.00%

0.00

X-E

SUB/NTL

12593FAG9

24,785,000.00

0.00

24,785,000.00

24,691.55

0.00

0.00%

1.195475%

1.191239%

0.00%

0.00

X-F

SUB/NTL

12593FAJ3

41,309,997.00

22,938,539.87

0.00

22,932,539.87

22,852.05

0.00

0.00%

1.195475%

1.191239%

0.00%

0.00

SUB

12593FBG8

67,747,000.00

9,035,402.68

5,942,775.67

3,092,627.01

33,472.22

0.00

98.42%

4.445475%

4.441239%

16.01%

0.00

SUB

12593FBH6

51,223,000.00

0.00

51,223,000.00

189,758.82

0.00

72.32%

4.445475%

4.441239%

12.13%

0.00

SUB

12593FBJ2

59,485,000.00

0.00

59,485,000.00

220,365.92

0.00

42.00%

4.445475%

4.441239%

7.63%

0.00

SUB

12593FAL8

34,700,000.00

0.00

34,700,000.00

93,979.17

0.00

24.32%

3.250000%

5.00%

0.00

SUB

12593FAN4

24,785,000.00

0.00

24,785,000.00

67,126.04

0.00

11.69%

3.250000%

3.13%

0.00

SUB

12593FAQ7

41,309,997.00

22,938,539.87

0.00

22,932,539.87

14,220.24

(47,904.97)

0.00%

3.250000%

0.00%

6,000.00

RES

12593FAT1

0.00

0.00%

0.000000%

0.00%

0.00

RES

12593FAU8

0.00

0.00%

0.000000%

0.00%

0.00

RES

12593FAW4

0.00

0.00%

0.000000%

0.00%

0.00

1,321,890,997.00

202,166,942.55

5,942,775.67

196,218,166.88

701,035.17

(47,904.97)

SubTotal

SubTotal P&I

6,643,810.84

6,000.00

1,321,890,997.00

202,166,942.55

5,942,775.67

6,000.00

196,218,166.88

701,035.17

(47,904.97)

Total

Total P&I

6,643,810.84

(*) Optimal payment against which the percentage position for the exchangeable certificate should be applied.

Certificate Payment Report

Page 2 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Position

Class

Start
Date

Accrual

End

Date

Methodology

Cusip

Original

Balance

Balance Factors

Beginning

Balance

Interest

Distributed

Payment Factors

Principal

Distributed

Total

Distributed

Ending

Balance

12593FAY0

07/01/25

07/30/25

57,900,000.00

0.00000000

30/360

A-1

12593FBA1

07/01/25

07/30/25

181,050,000.00

0.00000000

30/360

A-2

12593FBB9

07/01/25

07/30/25

90,150,000.00

0.00000000

30/360

A-SB

12593FBC7

07/01/25

07/30/25

225,000,000.00

0.00000000

30/360

A-3

12593FBD5

07/01/25

07/30/25

371,223,000.00

0.00000000

30/360

A-4

12593FBE3

07/01/25

07/30/25

1,042,641,000.00

0.00000000

30/360

X-A

12593FBF0

07/01/25

07/30/25

117,318,000.00

0.00000000

30/360

A-M

12593FAA2

07/01/25

07/30/25

118,970,000.00

506.50082105

456.54893679

0.00000000

30/360

X-B

12593FAC8

07/01/25

07/30/25

59,485,000.00

1,000.00000000

0.00000000

30/360

X-C

12593FAE4

07/01/25

07/30/25

34,700,000.00

1,000.00000000

0.99622939

0.00000000

0.99622939

30/360

X-D

12593FAG9

07/01/25

07/30/25

24,785,000.00

1,000.00000000

0.99622957

0.00000000

0.99622957

30/360

X-E

12593FAJ3

07/01/25

07/30/25

41,309,997.00

555.27817806

555.13293477

0.55318450

0.00000000

0.55318450

30/360

X-F

12593FBG8

07/01/25

07/30/25

67,747,000.00

133.36978287

45.64965253

0.49407679

87.72013034

88.21420712

30/360

12593FBH6

07/01/25

07/30/25

51,223,000.00

1,000.00000000

3.70456279

0.00000000

3.70456279

30/360

12593FBJ2

07/01/25

07/30/25

59,485,000.00

1,000.00000000

3.70456283

0.00000000

3.70456283

30/360

12593FAL8

07/01/25

07/30/25

34,700,000.00

1,000.00000000

2.70833343

0.00000000

2.70833343

30/360

12593FAN4

07/01/25

07/30/25

24,785,000.00

1,000.00000000

2.70833327

0.00000000

2.70833327

30/360

12593FAQ7

07/01/25

07/30/25

41,309,997.00

555.27817806

555.13293477

0.34423241

0.00000000

0.34423241

30/360

12593FAT1

07/01/25

07/30/25

0.00

0.00000000

30/360

12593FAU8

07/01/25

07/30/25

0.00

0.00000000

30/360

12593FAW4

07/01/25

07/30/25

0.00

0.00000000

30/360

Certificate Report

Page 3 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

0.00

Other Interest Adjustments

Excess Liq. Pro. Deposit

0.00

Excess Liq.Pro. Acct..

0.00

Excess Liquidation Proceeds Acct

Deposit

Beg. Balance

Withdrawal

End Balance

(87.04)

D. CREFC

License Fee

(28.54)

0.00

Guarantee Fee
Unreimbursed Indemnification Expense

C. Operating Advisor Fees

Miscellaneous Fees

(548.71)

(1,626.95)

(969.89)

(108.35)

0.00

Servicer Fees/Expenses

Delinquent Servicer Fees

6,697,994.34

749,218.67

0.00

477,227.06

273,618.56

A. Scheduled Interest

Current Interest

Delinquent Interest

B. Servicing Fees & Expenses

Current Servicer Fees

Sub-Servicer

Servicer Fee Strips

Other Fee Strips (incl. Insurer)

Interest Non-Adjusted

Principal & Interest Non-Adjusted

0.00

(47,904.96)

108,864.99

75,917.46

(278.54)

(1,626.95)

(278.54)

(108.35)

(250.00)

0.00

831.56

0.00

(32,401.36)

(16,335.16)

0.00

5,637,401.64

0.00

126,591.58

Net PPIS

Servicer PPIS Cap

6,643,810.84

0.00

6,644,089.38

750,845.62

5,942,775.67

(47,904.96)

0.00

(6,000.00)

0.00

-6,000.00

5,948,775.67

Servicer Remittance Non-Adjusted

Adjustments

Trust

Principal

Trust Related Fees & Expenses

A. Scheduled Principal

A. Excess Amounts

Trustee Fee

Current Principal

Subsequent Recovery

Certificate Administrator Fee

Scheduled Maturity Payoff

Certificate Insurer

Advanced Principal

Gain-on-Sale

Trustee Strips

B. Unscheduled Principal

Realized Loss

Trust Expense(s)

Voluntary

Additional Loss Claim

Post-Maturity

Liquidation

Net Excess/Shortfall

Trust Related Fees & Expenses

Curtailment

Defeasance

Interest

Neg Am/Deferred

A. Excesses

Principal Non-Adjusted

Extension Interest (ARD)

B. Shortfalls Amounts.

Collateral Administrator

Penalties/Yield Maintain/Exit Fees

Default Interest

Prepay Interest Excess (PPIE)

Interest

Interest Recovery

ASER Recovered

Other Interest Proceeds

Interest Reserve Account

Deposit

B. Shortfalls

Cumulative Deposit

Gross PPIS (Prepay Interest Shortfall)

Withdrawal

Deferred Interest

Modification Shortfall

Summary

ASER Applied

Principal Adjusted

Special Servicer Fees

Scheduled Interest

Workout Fees

Servicer Fee & Expense

Liquidation Fees

Interest Shortfall Expense

Non-Recoveralble Advances

Servicer Wire

Interest on Prior Advances

Trustee Fee & Expense

Various Expenses

Sister Agreements

Other Interest Loss

Interest Reserve Account

Net Excess/Shortfall

Due to Certificates

Cash Reconciliation

Page 4 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

0.00

Other

Rebates

*Fee-sharing arrangement

Brokerage fees

Disclosable Special Servicer Fees*

Commissions

Other Related Information

Page 5 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Pool Detail

Amortizing/Balloon

Amt

WA Rates/Terms

Current

Cnt

IO/Amortizing/Balloon

IO/Balloon

Smallest Balance

Beginning Balance

Scheduled Principal

Voluntary Payoff

Scheduled Maturity Payoff

Post-Maturity Payoff

Net Liquidation/Disposition

Realized Loss

Curtailment

Repurchase/Substitution/DPO

Current

Negative Amortization/Deferred

Ending Balance

Scheduled Principal

Voluntary Payoff

Scheduled Maturity Payoff

Post-Maturity Payoff

Net Liquidation/Disposition

Realized Loss

Curtailment

Repurchase/Substitution/DPO

Cumulative

Negative Amortization/Deferred

Amt

Cnt

Amt

Cnt

WAC

WAMM

AWAM

Cutoff

Prior

Current

Performance Snapshot

30 Day

60 Day

90 Day Plus

Foreclosures

Current

3 Mo Avg

% Bal

REOs

Bankruptcies

Defeasances

Modifications

6 Mo Avg

12 Mo Avg

% Cnt

% Bal

% Cnt

% Bal

% Cnt

Current

Advance Summary

Cumulative

Interest

Liquidations

Prior Outstanding

Current Amount

Recovery (-)

Current Outstanding

Non-Recoverable

Principal

% Cnt

% Amt

Cnt

Appraisal Reduction Summary

Prior Cumulative ASER

Current ASER

Recovery (-)

Cumulative ASER

First ARA

Average ARA

Most Recent ARA

Largest Balance

(*) ARA

Appraisal Reduction Amount (*) ASER Appraisal Subordination Entitlement R

0.00

66,512.92

7,204,944.78

1,203,352.08

13,236,872.85

Average Balance

4.33919%

N/A

-0.90

-26.31

126,591.58

0.00

177,086.57

477,227.06

0.00

802,999.17

14,950,040.24

80,906,138.70

100,361,987.94

6,278,487.59

36,039,695.75

21,802,018.54

7.62%

41.23%

51.15%

202,166,942.55

11.11%

44.44%

0.00

5,637,401.64

0.00

108,864.99

0.00

196,218,166.88

0.00%

394,864,111.08

43,034,836.70

38,615,926.39

0.00

15,303,294.32

38,615,926.39

0.00

0.00%

4.33227%

4.45679%

177,792.37

627,176.43

0.00%

50,177.76

16,335.16

(*) AWAM - Loans that are IO/Balloon or IO/Amortizing Balloon are not included in this calculation

10.91%

4.08%

0.00%

17.17%

3.70%

0.00%

6.10%

2.04%

0.00%

9.11%

1.85%

0.00%

95.41%

3.57%

1.02%

0.00%

94.31%

4.77%

0.93%

0.00%

-1.88

-43.82

4.45260%

111.17

348.67

0.00%

N/A

165,939,089.06

202,509.04

85.01%

79.12%

N/A

301,404.32

127,297.38

519,012,331.27

0.00%

91.86%

89.04%

0.00%

N/A

TERMSOFR

N/A

CREDIT SPREAD

N/A

Pool and Performance Detail

Page 6 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Pass-Through

Rate

Outstanding

Shortfall

Distributed

Interest

Current

Deductions

Current

Additions

Current

Accrued

Prior

Shortfall

Days

Class

Prior

Due

Current

Due

Method

Beginning

Balance

Distributable

Interest

Accrual

CUSIP

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

A-1

12593FAY0

0.00

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

A-2

12593FBA1

0.00

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

A-SB

12593FBB9

0.00

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

A-3

12593FBC7

0.00

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

A-4

12593FBD5

0.00

A-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

X-A

12593FBE3

0.00

A-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

A-M

12593FBF0

0.00

A-30/360

0.000000%

0.00

07/30/25

07/01/25

60,258,402.68

0.00

X-B

12593FAA2

0.00

A-30/360

0.000000%

0.00

07/30/25

07/01/25

59,485,000.00

0.00

X-C

12593FAC8

0.00

A-30/360

1.195475%

34,569.16

0.00

07/30/25

07/01/25

34,700,000.00

34,569.16

0.00

X-D

12593FAE4

0.00

A-30/360

1.195475%

24,691.55

0.00

07/30/25

07/01/25

24,785,000.00

24,691.55

0.00

X-E

12593FAG9

0.00

A-30/360

1.195475%

22,852.05

0.00

07/30/25

07/01/25

22,938,539.87

22,852.05

0.00

X-F

12593FAJ3

0.00

A-30/360

4.445475%

33,472.22

0.00

07/30/25

07/01/25

9,035,402.68

33,472.22

0.00

12593FBG8

0.00

A-30/360

4.445475%

189,758.82

0.00

07/30/25

07/01/25

51,223,000.00

189,758.82

0.00

12593FBH6

0.00

A-30/360

4.445475%

220,365.92

0.00

07/30/25

07/01/25

59,485,000.00

220,365.92

0.00

12593FBJ2

0.00

F-30/360

3.250000%

93,979.17

0.00

07/30/25

07/01/25

34,700,000.00

93,979.17

0.00

12593FAL8

0.00

F-30/360

3.250000%

67,126.04

0.00

07/30/25

07/01/25

24,785,000.00

67,126.04

0.00

12593FAN4

0.00

F-30/360

3.250000%

1,444,580.71

14,220.24

1,430,360.47

07/30/25

07/01/25

22,938,539.87

62,125.21

0.00

12593FAQ7

1,382,455.50

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

12593FAT1

0.00

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

12593FAU8

0.00

F-30/360

0.000000%

0.00

07/30/25

07/01/25

0.00

12593FAW4

0.00

202,166,942.55

748,940.14

2,131,395.64

701,035.17

SubTotal

1,430,360.47

1,382,455.50

0.00

202,166,942.55

748,940.14

2,131,395.64

701,035.17

Total

1,430,360.47

0.00

1,382,455.50

Certificate Interest Reconcilation

Page 7 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Interest Loss

Expense

Interest on Prior

Loss

PPY, PPYYM,

Exit Fees

Deferred

Accretion

Net

PPIS

Interest

Adjustment

Interest on Prior

Shortfall

Cumulative

Loss

Current

Loss

Unscheduled

Scheduled

Class

Principal Components

Interest Additions

Interest Deductions

0.00

A-1

0.00

A-2

0.00

A-SB

0.00

A-3

0.00

A-4

0.00

X-A

0.00

A-M

0.00

X-B

0.00

X-C

0.00

X-D

0.00

X-E

0.00

X-F

0.00

202,509.04

5,740,266.63

0.00

6,000.00

18,377,457.13

0.00

202,509.04

5,740,266.63

6,000.00

18,377,457.13

0.00

SubTotal

0.00

202,509.04

5,740,266.63

6,000.00

18,377,457.13

0.00

Total

0.00

Certificate Reconciliation Detail

Page 8 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Reimb of Advances to Servicer

Special Servicing Fee

Comments -

Other

Shortfalls/
(Refunds)

Left to

Reimburse

Servicer

Current Month

Modified

Interest Rate

Reduction/

(Excess)

Reimbursed

Interest

Advances

Non

Recoverable

(Scheduled

Interest)

Prepayment

Interest

(Excess)/

Shortfall

Most Recent

Net

ASER

Amount

Workout

Fee

Amount

Liquidation

Fee

Amount

Special

Servicing Fee

Amount plus
Adjustments

Current
Ending

Scheduled

Balance

Scheduled

Principal

Balance at

Contribution

Investor

No.

42,300,000.00

36,039,695.75

0.00

7,774.89

26,700,000.00

0.00

5,747.92

26,450,000.00

22,718,696.60

0.00

4,901.16

24,000,000.00

0.00

5,166.67

18,478,877.48

14,950,040.24

0.00

15,151.32

0.00

3,017.88

18,200,000.00

15,869,258.76

0.00

1,183.84

0.00

3,422.89

16,800,000.00

0.00

3,616.67

3,675,000.00

0.00

(1,246.72)

3,225,000.00

0.00

(831.56)

0.00

16,335.16

0.00

(831.56)

0.00

32,401.36

0.00

Totals

Total Interest Shortfall hitting the Trust

47,904.96

Interest Shortfall Reconciliation

Page 9 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Closing Ratings

CUSIP

Class

Fitch

Moody's

S & P

Fitch

Moody's

S & P

Class

Type

Morningstar

Rating

Eff Date

Rating

Eff Date

Updated Ratings (1)

DBRS

Eff Date

Rating

Kroll

Rating

Eff Date

Kroll

Ratings Information Redacted

Contact Information

Fitch, Inc.
One State Street Plaza
New York, New York, 10004
(212) 908-0500

Moody's Investors Service
7 World Trade Center
New York, NY 10007
(212) 553-0300

S&P Global Ratings
55 Water Street
New York, New York 10041
(212) 438-2430

Legend

Class not rated at issuance

Data not available

(1) These ratings are not a recommendation to buy, sell or hold these notes. Ratings may be changed or withdrawn at any time by each assigning rating agency.
These ratings do not address the possibility that, as a result of principal prepayments or losses, the yield on your notes may be lower than anticipated.

Changed ratings provided on this report are based on information provided by the applicable rating agency via electronic transmission and captured during the processing window.
Deutsche Bank does not hold itself responsible for any update that may have occurred outside the window during which the data was captured.

DBRS, Inc.
101 North Wacker Drive,
Suite 100
Chicago, Illinois 60606
(312) 332-3429

Kroll Bond Ratings
599 Lexington Ave
New York, NY 10022
(212) 702-0707

Morningstar Credit Ratings, LLC
410 Horsham Road Suite A
Horsham, PA 19044
(267) 960-6014

Current Ratings

Page 10 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

8/12/2025

No. 122

38,028,527.83

24,000,000.00 0

0.00

33.33%

19.38%

11.11%

12.23%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

62,028,527.83

31.61%

44.44%

7/11/2025

No. 121

26,980,854.44

0.00 0

0.00

18.18%

13.35%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

26,980,854.44

13.35%

18.18%

6/12/2025

No. 120

0.00 0

0.00

0.00%

0.00

0.00%

15,932,334.00

714.29%

645.35%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

5/12/2025

No. 119

15,962,695.29

0.00 0

0.00

3.13%

3.89%

0.00%

0.00

0.00%

15,962,695.29

312.50%

389.18%

0.00

0.00%

0.00

0.00%

0.00

0.00%

15,962,695.29

3.89%

3.13%

4/11/2025

No. 118

0.00 0

0.00

0.00%

0.00

0.00%

15,994,931.03

196.08%

261.40%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3/12/2025

No. 117

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2/12/2025

No. 116

33,963,675.00

0.00 0

0.00

1.32%

4.25%

0.00%

0.00

0.00%

16,061,053.73

131.58%

201.17%

0.00

0.00%

0.00

0.00%

0.00

0.00%

33,963,675.00

4.25%

1.32%

1/10/2025

No. 115

16,090,918.15

0.00 0

0.00

1.23%

1.92%

0.00%

0.00

0.00%

16,090,918.15

123.46%

191.87%

0.00

0.00%

0.00

0.00%

0.00

0.00%

16,090,918.15

1.92%

1.23%

12/12/2024

No. 114

0.00 0

0.00

0.00%

0.00

0.00%

16,120,667.29

121.95%

182.94%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

11/13/2024

No. 113

0.00 0

0.00

0.00%

0.00

0.00%

16,152,312.85

121.95%

182.95%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

10/11/2024

No. 112

0.00 0

0.00

0.00%

0.00

0.00%

16,181,825.01

120.48%

179.98%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

9/12/2024

No. 111

0.00 0

0.00

0.00%

0.00

0.00%

16,213,242.08

120.48%

179.99%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

8/12/2024

No. 110

16,242,519.05

0.00 0

0.00

1.20%

1.80%

0.00%

0.00

0.00%

16,242,519.05

120.48%

180.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

16,242,519.05

1.80%

1.20%

7/12/2024

No. 109

0.00 0

0.00

0.00%

0.00

0.00%

16,271,683.01

120.48%

180.01%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

6/12/2024

No. 108

2,733,084.60

0.00 0

0.00

1.20%

0.30%

0.00%

0.00

0.00%

16,302,764.37

120.48%

180.03%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2,733,084.60

0.30%

1.20%

5/10/2024

No. 107

0.00 0

0.00

0.00%

0.00

0.00%

16,331,695.78

120.48%

180.04%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

4/12/2024

No. 106

0.00 0

0.00

0.00%

0.00

0.00%

16,362,552.94

120.48%

180.06%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

(1) Total Delinquency is 30+ Days

Performance History

Page 11 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

3/12/2024

No. 105

0.00 0

0.00

0.00%

0.00

0.00%

16,391,253.56

117.65%

178.73%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2/12/2024

No. 104

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

1/12/2024

No. 103

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

12/12/2023

No. 102

0.00 0

0.00

0.00%

0.00

0.00%

16,480,751.04

114.94%

173.93%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

11/10/2023

No. 101

3,706,612.64

0.00 0

0.00

1.15%

0.39%

0.00%

0.00

0.00%

16,511,051.33

114.94%

173.95%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3,706,612.64

0.39%

1.15%

10/13/2023

No. 100

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

9/12/2023

No. 99

0.00 0

0.00

0.00%

0.00

0.00%

16,569,260.74

114.94%

173.96%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

8/11/2023

No. 98

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

16,597,163.46

1.15%

1.74%

16,597,163.46

1.74%

1.15%

7/12/2023

No. 97

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

37,940,884.87

2.27%

3.88%

37,940,884.87

3.88%

2.27%

6/12/2023

No. 96

0.00 0

0.00

0.00%

0.00

0.00%

16,654,720.01

113.64%

170.19%

0.00

0.00%

0.00

0.00%

38,016,946.17

2.27%

3.88%

38,016,946.17

3.88%

2.27%

5/12/2023

No. 95

0.00 0

0.00 1

16,682,292.86

0.00%

1.14%

1.70%

0.00

0.00%

16,682,292.86

113.64%

170.19%

0.00

0.00%

0.00

0.00%

21,405,630.38

1.14%

2.18%

38,087,923.24

3.89%

2.27%

4/12/2023

No. 94

0.00 1

16,711,840.19 0

0.00

0.00%

1.12%

1.69%

0.00%

0.00

0.00%

16,711,840.19

112.36%

169.27%

0.00

0.00%

0.00

0.00%

30,614,036.42

3.37%

3.10%

47,325,876.61

4.79%

4.49%

3/10/2023

No. 93

16,739,192.55

0.00 0

0.00

1.12%

1.69%

0.00%

0.00

0.00%

16,739,192.55

112.36%

169.27%

0.00

0.00%

0.00

0.00%

30,679,895.61

3.37%

3.10%

47,419,088.16

4.80%

4.49%

2/10/2023

No. 92

0.00 0

0.00

0.00%

0.00

0.00%

16,772,704.81

112.36%

169.29%

0.00

0.00%

0.00

0.00%

30,757,226.71

3.37%

3.10%

30,757,226.71

3.10%

3.37%

1/12/2023

No. 91

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

30,822,519.36

3.37%

3.11%

30,822,519.36

3.11%

3.37%

12/12/2022

No. 90

0.00 0

0.00

0.00%

0.00

0.00%

16,826,834.97

112.36%

169.29%

0.00

0.00%

0.00

0.00%

30,887,553.59

3.37%

3.11%

30,887,553.59

3.11%

3.37%

11/14/2022

No. 89

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

30,956,266.70

3.37%

3.11%

30,956,266.70

3.11%

3.37%

(1) Total Delinquency is 30+ Days

Page 12 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

10/13/2022

No. 88

3,711,419.27

0.00 0

0.00

1.12%

0.37%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,020,771.66

3.37%

3.11%

34,732,190.93

3.48%

4.49%

9/12/2022

No. 87

0.00 1

4,401,858.67 0

0.00

0.00%

1.12%

0.44%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,088,974.53

3.37%

3.11%

35,490,833.20

3.55%

4.49%

8/12/2022

No. 86

4,422,871.07

0.00 0

0.00

1.11%

0.44%

0.00%

0.00

0.00%

16,938,019.53

111.11%

167.05%

0.00

0.00%

0.00

0.00%

31,152,954.33

3.33%

3.07%

35,575,825.40

3.51%

4.44%

7/12/2022

No. 85

9,248,185.75

0.00 0

0.00

2.20%

0.91%

0.00%

0.00

0.00%

16,964,498.83

109.89%

166.65%

0.00

0.00%

0.00

0.00%

31,216,680.91

3.30%

3.07%

40,464,866.66

3.97%

5.49%

6/10/2022

No. 84

9,264,826.92

4,465,186.44 0

0.00

2.20%

0.91%

1.10%

0.44%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,284,133.40

3.30%

3.07%

45,014,146.76

4.41%

6.59%

5/12/2022

No. 83

7,758,319.57

0.00 0

0.00

3.30%

0.76%

0.00%

0.00

0.00%

17,019,258.94

109.89%

166.66%

0.00

0.00%

0.00

0.00%

48,366,599.82

4.40%

4.74%

56,124,919.39

5.50%

7.69%

4/12/2022

No. 82

7,036,829.34

6,767,170.46 1

17,047,547.37

2.17%

0.68%

1.09%

0.65%

1.09%

1.65%

0.00

0.00%

17,047,547.37

108.70%

164.87%

0.00

0.00%

0.00

0.00%

31,414,292.95

3.26%

3.04%

62,265,840.12

6.02%

7.61%

3/11/2022

No. 81

25,022,801.13

17,073,603.88 0

0.00

4.30%

2.41%

1.08%

1.64%

0.00%

0.00

0.00%

17,073,603.88

107.53%

164.23%

0.00

0.00%

0.00

0.00%

31,476,985.36

3.23%

3.03%

73,573,390.37

7.08%

8.60%

2/11/2022

No. 80

20,392,921.84

0.00 0

0.00

3.23%

1.96%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,551,466.38

3.23%

3.03%

51,944,388.22

4.99%

6.45%

1/12/2022

No. 79

13,767,536.67

0.00 0

0.00

2.15%

1.32%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,613,616.06

3.23%

3.03%

45,381,152.73

4.35%

5.38%

12/10/2021

No. 78

2,548,192.16

21,748,379.63 0

0.00

1.08%

0.24%

2.15%

2.08%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,675,519.79

3.23%

3.03%

55,972,091.58

5.36%

6.45%

11/15/2021

No. 77

7,164,609.56

17,185,284.15 0

0.00

2.15%

0.68%

1.08%

1.64%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,741,214.99

3.23%

3.03%

56,091,108.70

5.36%

6.45%

10/13/2021

No. 76

19,767,995.44

4,631,995.76 0

0.00

2.15%

1.89%

1.08%

0.44%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

31,802,613.78

3.23%

3.04%

56,202,604.98

5.36%

6.45%

9/13/2021

No. 75

7,214,552.60

0.00 2

9,594,402.62

2.15%

0.69%

0.00%

2.15%

0.91%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

22,273,419.59

1.08%

2.12%

39,082,374.81

3.72%

5.38%

8/12/2021

No. 74

2,566,105.76

5,721,877.42 1

3,893,606.48

1.08%

0.24%

1.08%

0.54%

1.08%

0.37%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

22,313,236.11

1.08%

2.12%

34,494,825.77

3.28%

4.30%

7/12/2021

No. 73

7,263,237.84

5,736,557.12 1

3,899,923.83

2.15%

0.69%

1.08%

0.55%

1.08%

0.37%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

22,352,895.85

1.08%

2.12%

39,252,614.64

3.73%

5.38%

6/11/2021

No. 72

4,713,390.12

9,658,626.02 1

22,395,243.90

1.08%

0.45%

2.15%

0.92%

1.08%

2.12%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

36,767,260.04

3.49%

4.30%

(1) Total Delinquency is 30+ Days

Page 13 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

5/12/2021

No. 71

15,284,818.05

28,201,076.86 1

14,539,188.16

2.13%

1.42%

2.13%

2.63%

1.06%

1.36%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

58,025,083.07

5.41%

5.32%

4/12/2021

No. 70

9,629,138.31

14,563,984.98 3

37,787,234.71

2.13%

0.90%

1.06%

1.36%

3.19%

3.52%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

17,300,000.00

1.06%

1.61%

79,280,358.00

7.38%

7.45%

3/12/2021

No. 69

19,359,997.94

37,850,083.46 1

5,796,193.07

2.13%

1.80%

3.19%

3.52%

1.06%

0.54%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

17,300,000.00

1.06%

1.61%

80,306,274.47

7.46%

7.45%

2/12/2021

No. 68

42,721,668.38

0.00 1

5,812,882.44

4.26%

3.96%

0.00%

1.06%

0.54%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

17,300,000.00

1.06%

1.61%

65,834,550.82

6.11%

6.38%

1/12/2021

No. 67

0.00 1

5,827,187.53 2

19,452,098.62

0.00%

1.06%

0.54%

2.13%

1.80%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

17,300,000.00

1.06%

1.60%

42,579,286.15

3.95%

4.26%

12/11/2020

No. 66

6,944,908.09

36,800,514.35 0

0.00

1.06%

0.64%

4.26%

3.41%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

17,300,000.00

1.06%

1.60%

61,045,422.44

5.65%

6.38%

11/13/2020

No. 65

105,931,285.59

4,853,918.91 0

0.00

5.32%

9.79%

1.06%

0.45%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

17,300,000.00

1.06%

1.60%

128,085,204.50

11.84%

7.45%

10/13/2020

No. 64

22,972,635.37

17,710,056.25 0

0.00

2.13%

2.12%

3.19%

1.63%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

28,801,171.80

2.13%

2.66%

69,483,863.42

6.41%

7.45%

9/14/2020

No. 63

24,135,704.16

11,870,427.16 0

0.00

3.16%

2.21%

2.11%

1.09%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

28,819,779.11

2.11%

2.64%

64,825,910.43

5.95%

7.37%

8/12/2020

No. 62

6,987,380.87

0.00 2

26,289,198.84

1.05%

0.64%

0.00%

2.11%

2.41%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

17,300,000.00

1.05%

1.59%

50,576,579.71

4.63%

4.21%

7/10/2020

No. 61

6,997,497.43

33,882,120.00 2

23,213,329.93

1.05%

0.64%

4.21%

3.10%

2.11%

2.12%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

64,092,947.36

5.87%

7.37%

6/12/2020

No. 60

39,715,357.85

23,228,008.70 0

0.00

5.26%

3.63%

2.11%

2.12%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

62,943,366.55

5.75%

7.37%

5/12/2020

No. 59

29,587,722.13

0.00 0

0.00

4.17%

2.69%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

29,587,722.13

2.69%

4.17%

4/10/2020

No. 58

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3/12/2020

No. 57

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2/12/2020

No. 56

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

1/10/2020

No. 55

2,647,743.78

0.00 0

0.00

0.99%

0.22%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2,647,743.78

0.22%

0.99%

(1) Total Delinquency is 30+ Days

Page 14 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

12/12/2019

No. 54

6,012,500.99

0.00 0

0.00

0.98%

0.49%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

6,012,500.99

0.49%

0.98%

11/13/2019

No. 53

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

10/11/2019

No. 52

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

9/12/2019

No. 51

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

8/12/2019

No. 50

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

7/12/2019

No. 49

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

6/12/2019

No. 48

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

5/10/2019

No. 47

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

4/12/2019

No. 46

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3/12/2019

No. 45

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2/12/2019

No. 44

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

1/11/2019

No. 43

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

12/12/2018

No. 42

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

11/13/2018

No. 41

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

10/15/2018

No. 40

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

9/12/2018

No. 39

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

8/10/2018

No. 38

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

(1) Total Delinquency is 30+ Days

Page 15 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

7/12/2018

No. 37

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

6/12/2018

No. 36

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

5/11/2018

No. 35

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

4/12/2018

No. 34

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3/12/2018

No. 33

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2/12/2018

No. 32

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

1/12/2018

No. 31

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

12/12/2017

No. 30

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

11/10/2017

No. 29

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

10/13/2017

No. 28

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

9/12/2017

No. 27

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

8/11/2017

No. 26

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

7/12/2017

No. 25

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

6/12/2017

No. 24

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

5/12/2017

No. 23

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

4/12/2017

No. 22

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3/10/2017

No. 21

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

(1) Total Delinquency is 30+ Days

Page 16 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

2/10/2017

No. 20

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

1/12/2017

No. 19

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

12/12/2016

No. 18

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

11/14/2016

No. 17

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

10/13/2016

No. 16

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

9/12/2016

No. 15

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

8/12/2016

No. 14

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

7/12/2016

No. 13

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

6/10/2016

No. 12

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

5/12/2016

No. 11

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

4/12/2016

No. 10

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3/11/2016

No. 9

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2/12/2016

No. 8

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

1/12/2016

No. 7

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

12/11/2015

No. 6

12,500,000.00

0.00 0

0.00

0.97%

0.95%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

12,500,000.00

0.95%

0.97%

11/13/2015

No. 5

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

10/13/2015

No. 4

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

(1) Total Delinquency is 30+ Days

Page 17 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Delinquency Categories

Dist Date
Dist Cnt

Bal

Cnt

Foreclosure

Bal

30 Day

Cnt

Bal

60 Day

Cnt

90 Day

Cnt

Bal

REO

Cnt

Bal

Bankruptcy

Cnt

Impaired Loans

Curr FC not SS/REO

Bal

Cnt

Bal

120+ Day

Cnt

Bal

Cnt

Total Delinquency(1)

9/14/2015

No. 3

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

8/12/2015

No. 2

23,905,939.00

0.00 0

0.00

0.97%

1.81%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

23,905,939.00

1.81%

0.97%

7/10/2015

No. 1

0.00 0

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

(1) Total Delinquency is 30+ Days

Page 18 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

8/12/2025

No. 122

5,637,401.64

0.00

-1.88

-43.82

22.22%

2.87%

0.00%

22.22%

0.00%

0.00

0.00%

0.00

0.00%

7/11/2025

No. 121

44,373,222.33

0.00

-0.90

-26.31

27.27%

21.95%

0.00%

27.27%

0.00%

0.00

0.00%

0.00

0.00%

6/12/2025

No. 120

162,872,222.06

0.00

0.03 115.43

128.57%

65.97%

0.00%

0.00% 128.57%

0.00%

0.00

0.00%

0.00

0.00%

5/12/2025

No. 119

190,448,054.91

0.00

0.97 196.71

56.25%

46.43%

0.00%

56.25%

0.00%

0.00

0.00%

0.00

0.00%

4/11/2025

No. 118

101,821,635.75

0.00

1.69 204.63

27.45%

16.64%

0.00%

27.45%

0.00%

0.00

0.00%

0.00

0.00%

3/12/2025

No. 117

81,454,267.14

0.00

2.58 206.62

16.92%

11.39%

0.00%

16.92%

0.00%

0.00

0.00%

0.00

0.00%

2/12/2025

No. 116

38,802,882.03

0.00

3.56 208.85

6.58%

4.86%

0.00%

6.58%

0.00%

0.00

0.00%

0.00

0.00%

1/10/2025

No. 115

41,000,000.00

0.00

4.52 221.17

1.23%

4.89%

0.00%

1.23%

0.00%

0.00

0.00%

0.00

0.00%

12/12/2024

No. 114

0.00

5.50 222.16

0.00%

0.00

0.00%

0.00

0.00%

11/13/2024

No. 113

14,674,821.70

0.00

6.50 223.15

1.22%

1.66%

0.00%

1.22%

0.00%

0.00

0.00%

0.00

0.00%

10/11/2024

No. 112

0.00

7.42 224.13

0.00%

0.00

0.00%

0.00

0.00%

9/12/2024

No. 111

0.00

8.43 225.12

0.00%

0.00

0.00%

0.00

0.00%

8/12/2024

No. 110

0.00

9.43 226.11

0.00%

0.00

0.00%

0.00

0.00%

7/12/2024

No. 109

0.00

10.43 227.10

0.00%

0.00

0.00%

0.00

0.00%

6/12/2024

No. 108

0.00

11.43 228.09

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Payoff History

Page 19 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

5/10/2024

No. 107

0.00

12.43 229.08

0.00%

0.00

0.00%

0.00

0.00%

4/12/2024

No. 106

6,801,245.29

0.00

13.43 230.07

2.41%

0.75%

0.00%

2.41%

0.00%

0.00

0.00%

67,644.17

0.01%

3/12/2024

No. 105

0.00

14.43 231.29

0.00%

0.00

0.00%

0.00

0.00%

2/12/2024

No. 104

21,885,914.44

0.00

15.43 232.28

2.35%

2.38%

0.00%

2.35%

0.00%

0.00

0.00%

98,424.49

0.01%

1/12/2024

No. 103

0.00

16.43 234.03

0.00%

0.00

0.00%

0.00

0.00%

12/12/2023

No. 102

0.00

17.43 235.02

0.00%

0.00

0.00%

0.00

0.00%

11/10/2023

No. 101

0.00

18.43 236.01

0.00%

0.00

0.00%

0.00

0.00%

10/13/2023

No. 100

0.00

19.43 237.00

0.00%

0.00

0.00%

0.00

0.00%

9/12/2023

No. 99

0.00

20.43 237.99

0.00%

0.00

0.00%

0.00

0.00%

8/11/2023

No. 98

0.00

21,315,926.39

10,210,620.82

0.00

21.43 238.98

0.00%

1.15%

2.23%

1.07%

0.00%

0.00

0.00%

0.00

0.00%

7/12/2023

No. 97

0.00

22.42 240.54

0.00%

0.00

0.00%

0.00

0.00%

6/12/2023

No. 96

0.00

23.43 241.53

0.00%

0.00

0.00%

0.00

0.00%

5/12/2023

No. 95

5,405,962.24

0.00

24.43 242.52

1.14%

0.55%

0.00%

1.14%

0.00%

0.00

0.00%

269,459.76

0.03%

4/12/2023

No. 94

0.00

25.42 243.25

0.00%

0.00

0.00%

0.00

0.00%

3/10/2023

No. 93

0.00

26.42 244.24

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 20 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

2/10/2023

No. 92

0.00

27.42 245.23

0.00%

0.00

0.00%

0.00

0.00%

1/12/2023

No. 91

0.00

28.42 246.22

0.00%

0.00

0.00%

0.00

0.00%

12/12/2022

No. 90

0.00

29.43 247.21

0.00%

0.00

0.00%

0.00

0.00%

11/14/2022

No. 89

0.00

30.43 248.21

0.00%

0.00

0.00%

0.00

0.00%

10/13/2022

No. 88

0.00

31.43 249.20

0.00%

0.00

0.00%

0.00

0.00%

9/12/2022

No. 87

13,500,000.00

0.00

32.43 250.19

1.12%

1.35%

0.00%

1.12%

0.00%

0.00

0.00%

477,430.96

0.05%

8/12/2022

No. 86

2,515,581.60

0.00

33.42 251.18

1.11%

0.25%

0.00%

1.11%

0.00%

0.00

0.00%

135,298.74

0.01%

7/12/2022

No. 85

0.00

34.42 252.24

0.00%

0.00

0.00%

0.00

0.00%

6/10/2022

No. 84

0.00

35.42 253.24

0.00%

0.00

0.00%

0.00

0.00%

5/12/2022

No. 83

11,164,367.38

0.00

36.42 254.23

1.10%

1.09%

0.00%

1.10%

0.00%

0.00

0.00%

0.00

0.00%

4/12/2022

No. 82

4,066,789.21

0.00

36.78 255.20

1.09%

0.39%

0.00%

1.09%

0.00%

0.00

0.00%

240,857.32

0.02%

3/11/2022

No. 81

0.00

37.78 256.13

0.00%

0.00

0.00%

0.00

0.00%

2/11/2022

No. 80

0.00

38.78 257.12

0.00%

0.00

0.00%

0.00

0.00%

1/12/2022

No. 79

0.00

39.78 258.12

0.00%

0.00

0.00%

0.00

0.00%

12/10/2021

No. 78

0.00

40.78 259.11

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 21 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

11/15/2021

No. 77

0.00

41.78 260.10

0.00%

0.00

0.00%

0.00

0.00%

10/13/2021

No. 76

0.00

42.78 261.10

0.00%

0.00

0.00%

0.00

0.00%

9/13/2021

No. 75

0.00

43.78 262.09

0.00%

0.00

0.00%

0.00

0.00%

8/12/2021

No. 74

0.00

44.78 263.08

0.00%

0.00

0.00%

0.00

0.00%

7/12/2021

No. 73

0.00

45.78 264.07

0.00%

0.00

0.00%

0.00

0.00%

6/11/2021

No. 72

0.00

17,300,000.00

8,640,273.53

0.00

46.79 265.07

0.00%

1.08%

1.64%

0.82%

0.00%

0.00

0.00%

0.00

0.00%

5/12/2021

No. 71

0.00

47.79 266.06

0.00%

0.00

0.00%

0.00

0.00%

4/12/2021

No. 70

0.00

48.43 267.05

0.00%

0.00

0.00%

0.00

0.00%

3/12/2021

No. 69

0.00

49.79 268.05

0.00%

0.00

0.00%

0.00

0.00%

2/12/2021

No. 68

0.00

50.79 269.04

0.00%

0.00

0.00%

0.00

0.00%

1/12/2021

No. 67

0.00

51.79 270.03

0.00%

0.00

0.00%

0.00

0.00%

12/11/2020

No. 66

0.00

52.79 271.02

0.00%

0.00

0.00%

0.00

0.00%

11/13/2020

No. 65

0.00

53.79 272.02

0.00%

0.00

0.00%

0.00

0.00%

10/13/2020

No. 64

4,746,396.32

0.00

54.84 348.67

1.06%

0.44%

0.00%

1.06%

0.00%

0.00

0.00%

927,161.90

0.09%

9/14/2020

No. 63

0.00

55.80 274.06

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 22 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

8/12/2020

No. 62

0.00

56.80 275.06

0.00%

0.00

0.00%

0.00

0.00%

7/10/2020

No. 61

0.00

57.80 276.05

0.00%

0.00

0.00%

0.00

0.00%

6/12/2020

No. 60

5,677,929.22

0.00

58.80 277.55

1.05%

0.52%

0.00%

1.05%

0.00%

0.00

0.00%

0.00

0.00%

5/12/2020

No. 59

0.00

59.49 280.35

0.00%

0.00

0.00%

0.00

0.00%

4/10/2020

No. 58

10,374,008.36

0.00

60.49 282.67

1.04%

0.94%

0.00%

1.04%

0.00%

0.00

0.00%

0.00

0.00%

3/12/2020

No. 57

20,781,373.13

0.00

60.95 283.45

3.09%

1.86%

0.00%

3.09%

0.00%

0.00

0.00%

0.00

0.00%

2/12/2020

No. 56

87,595,439.32

0.00

60.88 284.13

1.00%

7.70%

0.00%

1.00%

0.00%

0.00

0.00%

0.00

0.00%

1/10/2020

No. 55

10,360,000.00

0.00

57.67 285.12

0.99%

0.85%

0.00%

0.99%

0.00%

0.00

0.00%

0.00

0.00%

12/12/2019

No. 54

9,454,560.68

0.00

58.23 286.11

0.98%

0.76%

0.00%

0.98%

0.00%

0.00

0.00%

0.00

0.00%

11/13/2019

No. 53

0.00

58.79 287.10

0.00%

0.00

0.00%

0.00

0.00%

10/11/2019

No. 52

0.00

59.79 288.09

0.00%

0.00

0.00%

0.00

0.00%

9/12/2019

No. 51

0.00

60.80 289.09

0.00%

0.00

0.00%

0.00

0.00%

8/12/2019

No. 50

0.00

61.80 290.08

0.00%

0.00

0.00%

0.00

0.00%

7/12/2019

No. 49

0.00

62.81 291.07

0.00%

0.00

0.00%

0.00

0.00%

6/12/2019

No. 48

0.00

63.81 292.06

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 23 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

5/10/2019

No. 47

0.00

64.82 293.89

0.00%

0.00

0.00%

0.00

0.00%

4/12/2019

No. 46

0.00

65.82 294.88

0.00%

0.00

0.00%

0.00

0.00%

3/12/2019

No. 45

0.00

66.83 348.67

0.00%

0.00

0.00%

0.00

0.00%

2/12/2019

No. 44

0.00

67.83 348.67

0.00%

0.00

0.00%

0.00

0.00%

1/11/2019

No. 43

0.00

68.84 297.86

0.00%

0.00

0.00%

0.00

0.00%

12/12/2018

No. 42

0.00

69.84 298.85

0.00%

0.00

0.00%

0.00

0.00%

11/13/2018

No. 41

18,462,367.60

0.00

70.85 299.84

0.97%

1.46%

0.00%

0.97%

0.00%

0.00

0.00%

0.00

0.00%

10/15/2018

No. 40

0.00

71.04 301.03

0.00%

0.00

0.00%

0.00

0.00%

9/12/2018

No. 39

0.00

72.04 302.02

0.00%

0.00

0.00%

0.00

0.00%

8/10/2018

No. 38

0.00

73.04 303.01

0.00%

0.00

0.00%

0.00

0.00%

7/12/2018

No. 37

0.00

74.05 304.01

0.00%

0.00

0.00%

0.00

0.00%

6/12/2018

No. 36

0.00

75.05 305.98

0.00%

0.00

0.00%

0.00

0.00%

5/11/2018

No. 35

0.00

76.06 309.85

0.00%

0.00

0.00%

0.00

0.00%

4/12/2018

No. 34

0.00

77.06 310.84

0.00%

0.00

0.00%

0.00

0.00%

3/12/2018

No. 33

0.00

78.06 311.83

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 24 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

2/12/2018

No. 32

0.00

79.07 312.82

0.00%

0.00

0.00%

0.00

0.00%

1/12/2018

No. 31

0.00

80.07 313.81

0.00%

0.00

0.00%

0.00

0.00%

12/12/2017

No. 30

0.00

81.07 348.67

0.00%

0.00

0.00%

0.00

0.00%

11/10/2017

No. 29

0.00

82.11 315.86

0.00%

0.00

0.00%

0.00

0.00%

10/13/2017

No. 28

0.00

83.11 317.79

0.00%

0.00

0.00%

0.00

0.00%

9/12/2017

No. 27

0.00

84.11 318.78

0.00%

0.00

0.00%

0.00

0.00%

8/11/2017

No. 26

0.00

85.12 319.77

0.00%

0.00

0.00%

0.00

0.00%

7/12/2017

No. 25

0.00

86.12 320.76

0.00%

0.00

0.00%

0.00

0.00%

6/12/2017

No. 24

0.00

87.12 323.15

0.00%

0.00

0.00%

0.00

0.00%

5/12/2017

No. 23

0.00

88.12 325.33

0.00%

0.00

0.00%

0.00

0.00%

4/12/2017

No. 22

0.00

89.13 326.32

0.00%

0.00

0.00%

0.00

0.00%

3/10/2017

No. 21

0.00

90.13 327.31

0.00%

0.00

0.00%

0.00

0.00%

2/10/2017

No. 20

0.00

91.13 328.29

0.00%

0.00

0.00%

0.00

0.00%

1/12/2017

No. 19

0.00

92.13 329.67

0.00%

0.00

0.00%

0.00

0.00%

12/12/2016

No. 18

0.00

93.14 330.65

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 25 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

11/14/2016

No. 17

0.00

94.14 331.64

0.00%

0.00

0.00%

0.00

0.00%

10/13/2016

No. 16

0.00

95.14 332.63

0.00%

0.00

0.00%

0.00

0.00%

9/12/2016

No. 15

0.00

96.14 333.61

0.00%

0.00

0.00%

0.00

0.00%

8/12/2016

No. 14

0.00

97.15 334.60

0.00%

0.00

0.00%

0.00

0.00%

7/12/2016

No. 13

0.00

98.15 335.59

0.00%

0.00

0.00%

0.00

0.00%

6/10/2016

No. 12

0.00

99.15 336.60

0.00%

0.00

0.00%

0.00

0.00%

5/12/2016

No. 11

0.00

100.15 337.80

0.00%

0.00

0.00%

0.00

0.00%

4/12/2016

No. 10

0.00

101.15 338.78

0.00%

0.00

0.00%

0.00

0.00%

3/11/2016

No. 9

0.00

102.16 339.77

0.00%

0.00

0.00%

0.00

0.00%

2/12/2016

No. 8

0.00

103.16 340.76

0.00%

0.00

0.00%

0.00

0.00%

1/12/2016

No. 7

0.00

104.16 341.74

0.00%

0.00

0.00%

0.00

0.00%

12/11/2015

No. 6

0.00

105.16 342.73

0.00%

0.00

0.00%

0.00

0.00%

11/13/2015

No. 5

0.00

106.16 343.72

0.00%

0.00

0.00%

0.00

0.00%

10/13/2015

No. 4

0.00

107.17 344.71

0.00%

0.00

0.00%

0.00

0.00%

9/14/2015

No. 3

0.00

108.17 345.69

0.00%

0.00

0.00%

0.00

0.00%

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 26 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Payoff Amount

Count

Amount

Liquidation

Interest Additions/Deductions

Remaining Term

Life

Amort

Liquidation

Realized Loss

Net Liquidation

Penalty(1)

PPIS/PPIE

Other

Maturity (2)

Dist Date
Dist Count

Prior

Post

Type

Schd

Count

8/12/2015

No. 2

0.00

109.17 346.68

0.00%

0.00

0.00%

0.00

0.00%

7/10/2015

No. 1

0.00

110.17 347.67

0.00%

0.00

0.00%

0.00

0.00%

Total

92.00

913,876,442.35

2.00

38,615,926.39

18,850,894.35

0.00

2,216,277.34

0.00

Prepay Penalties

Yield Maintenance

Exit Fees

Yield Maintenance & Exit Fees

(1) Penalty Type

(2) Maturity Var: Payoff to Maturity Date delta

Page 27 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Principal Components

Current P&I

Full Payoff

Partial Payoff

Interest Components

Penalty (YM)

Interest

PTD

Investor
No.

Static

Prop
Type

State

Amort

Type

Cutoff

Maturity

Financial

Most Recent

Cutoff

DSCR

LTV

Phy

Occ %

DSCR

LTV

Phy

Occ %

Payoff Type

Payoff

Date

Dates

Var

1.52

0.6765

1.83 0.6991

8/1/2025

1/1/2025

100.00%

0.00

108,864.99

119,812.42

Partial Liquidation

8/1/2025

0.00

2.40

0.0000

2.40 0.7350

8/6/2025

5/6/2025

93.50%

2,980,854.44

0.00

9,908.03

Full Payoff at Maturity

8/6/2025

0.00

1.56

0.0000

1.56 0.6450

8/6/2025

6/6/2025

100.00%

2,656,547.20

0.00

11,725.00

Full Payoff at Maturity

8/6/2025

0.00

5,637,401.64

108,864.99

141,445.45

0.00

Office

Mixed Use

Lodging

Self Storage

Other

Property Type Code

Multi-Family

Retail

Health Care

Industrial

Warehouse

Mobile Home Park

Amortization Type

Partial Liq'n (Curtailment)

Payoff Prior to Maturity

Disposition/Liquidation

Repurchase/Substitution

Full Payoff at Maturity

DPO

N/A

Payoff w/ Penalty

Payoff w/ Yield Maintenance

Curtailment w/ Penalty

Curtailment w/ Yield Maintenance

Mortgage Payoff Detail

Page 28 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

P&I Advances

Non-Advancing

Tracking

Status/Resolution w Relevant Dates

Loan Description

Investor
No.

PTD

Interest

Prior Outstanding

Current Outstanding

Principal

Interest

Principal

ASER

Non-

Recoverable

Mo (s)
Delinq

Mo (s)
Recov

Loan

Status

Resoln

Code

SS Tran

Date

ARA
Date

Fcls/REO

Date

Bkrpt

Date

Prop
Type DSCR

LTV

07/06/2025

0.50

93,895.00

0.00

97,024.83

0.00

05/07/2025

54.49%

07/06/2025

1.15

0.00

77,830.44

47,988.87

03/18/2025

67.35%

05/06/2025

2.28

182,186.67

0.00

274,773.34

0.00

05/16/2025

66.95%

06/06/2025

0.72

58,712.86

37,123.97

119,232.89

72,440.77

15,151.32

07/08/2025

07/07/2025

68.44%

07/06/2025

1.96

59,746.25

32,470.48

61,611.97

30,604.76

1,183.84

09/03/2021

01/06/2025

60.67%

06/06/2025

1.98

62,720.00

0.00

127,530.67

0.00

06/26/2025

64.99%

06/06/2025

1.77

22,152.58

13,371.02

44,995.03

26,052.17

06/17/2025

66.51%

Totals

479,413.36

82,965.47

802,999.17

177,086.57

16,335.16

Property Type Code

Loan Status Code

Resolution Strategy Code

Modification

Foreclosure

Bankruptcy

Extension

Note Sale

DPO

REO

Resolved

Pending Return

to Master Servicer

Deed in Lieu Of
Foreclosure

Full Payoff

Reps and Warranties

TBD

98 Other

Current

Grace

0 - 29 Days

30 Days Delinquent

60 Days Delinquent

90 Days Delinquent

Matured Balloon

5 Non Performing
Matured Balloon
6 121+ Days Delinquent

Multi-Family

Retail

Health Care

Industrial

Warehouse

Mobile Home Park

Office

Mixed Use

Lodging

Self Storage

Other

SE Securities

Cooperating Housing

Missing Information

SF Single Family

Delinquency Detail

Page 29 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Current

Original

Distribution of Principal Balances - All Groups

Summation

Weighted Average

Summation

Weighted Average

Cnt

Balance

Term

Rate

DSCR

LTV

OCC

Balances

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Balances

0.01 - 4,999,999.99

94.81%

0.00

0.00%

0.00

115.79

1.75

4.51%

6.03%

79,715,809.64

0.00%

0.00

0.00%

65.79%

5,000,000.00 - 9,999,999.99

91.54%

6,278,487.59

3.20%

(2.00)

116.03

1.64

4.43%

17.93%

237,043,563.77

4.22%

1.77

96.30%

66.09%

70.24%

10,000,000.00 - 19,999,999.99

91.50%

47,619,299.00

24.27%

(2.31)

108.76

1.74

4.51%

28.10%

371,502,443.34

4.55%

1.58

92.33%

136.47%

66.40%

20,000,000.00 - 29,999,999.99

87.18%

73,418,696.60

37.42%

(2.67)

119.20

1.67

4.18%

23.52%

310,865,505.63

4.23%

1.28

71.84%

105.58%

70.23%

30,000,000.00 - 39,999,999.99

93.08%

68,901,683.69

35.11%

(0.72)

117.02

1.97

4.18%

5.19%

68,663,675.00

4.24%

1.55

100.00%

64.88%

65.67%

40,000,000.00 - 49,999,999.99

100.00%

0.00

0.00%

0.00

123.06

1.59

4.37%

6.30%

83,300,000.00

0.00%

0.00

0.00%

68.21%

50,000,000.00 - 59,999,999.99

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

60,000,000.00 - 120,000,000.00

78.89%

0.00

0.00%

0.00

84.77

5.77

4.05%

12.92%

170,800,000.00

0.00%

0.00

0.00%

46.64%

Total

196,218,166.88

1,321,890,997.38

103

Stratification - Mortgage Balances/Rates

Average
Minimum

Maximum

21,802,018.54

-1.88

4.31% 1.46

65.46%

89.68%

12,710,490.36

111.17

4.33% 2.23

97.52% 87.49%

36,039,695.75

5.00

3.86%

5.13% 2.40 288.53% 100.00%

87,595,439.32

127.00

55.00

5.46% 8.73

76.34% 100.00%

0.00

-7.00

0.50

0.00% 43.00%

747,500.00

3.69% 1.29

28.20%

0.00%

Current

Original

Distribution of Mortgage Rates - All Groups

Summation

Weighted Average

Summation

Weighted Average

Cnt

Balance

Term

Rate

DSCR

LTV

OCC

Mortgage Rates

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Mortgage Rates

2.0000% - 2.5000%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

2.5000% - 3.0000%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3.0000% - 3.500%

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

3.5000% - 4.0000%

73.67%

22,718,696.60

11.58%

(3.00)

91.89

4.79

3.81%

16.52%

218,350,000.00

3.97%

1.15

76.00%

118.33%

52.39%

4.0000% - 4.500%

94.87%

142,680,171.28

72.72%

(1.57)

117.67

1.71

4.28%

55.77%

737,196,786.91

4.30%

1.53

89.17%

77.38%

67.96%

4.5000% - 5.50000%

88.78%

30,819,299.00

15.71%

(2.49)

109.60

1.75

4.75%

27.71%

366,344,210.47

4.59%

1.36

88.15%

175.43%

68.27%

196,218,166.88

1,321,890,997.38

103

Page 30 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Current

Original

Amortization terms of the Mortgage Pool - All Groups

Summation

Weighted Average

Summation

Weighted Average

Amortizing/Balloon

Cnt

Balance

Term

Rate

DSCR

LTV

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Terms

Total

14,950,040.24

514,419,822.38

Stratification - Amortization Terms

Average
Minimum

Maximum

14,950,040.24

-3.00

4.69%

0.72

68.12%

88.97%

10,288,396.45

114.55

4.51% 1.75

55.37% 76.00%

14,950,040.24

0.00

4.69%

5.13%

1.56 55.37% 100.00%

73,750,000.00

120.00

55.00

5.46% 2.41 75.14% 100.00%

0.00

-3.00

0.72

0.00% 76.00%

1,397,602.04

4.09% 1.29 36.36%

64.90%

Current

Original

Summation

Weighted Average

Summation

Weighted Average

Interest Only/Amortizing/Balloon

Cnt

Balance

Term

Rate

DSCR

LTV

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Terms

0 - 29

0.00%

36,039,695.75

44.55%

5.00

0.00

0.00%

0.00

4.25%

1.57

100.00%

62.35%

0.00%

30 - 59

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

60 - 119

88.02%

0.00

0.00%

0.00

113.40

1.53

4.18%

68.86%

332,370,000.00

0.00%

0.00

0.00%

72.50%

120 - 179

96.47%

0.00

0.00%

0.00

121.97

1.74

4.47%

31.14%

150,300,000.00

0.00%

0.00

0.00%

68.55%

180 - Plus

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

0.00

0.00%

Total

80,906,138.70

482,670,000.00

Average
Minimum

Maximum

20,226,534.68

0.84

4.22% 1.54

71.27%

90.65%

12,066,750.00

116.07

4.27% 1.60

122.72% 92.90%

36,039,695.75

5.00

3.86%

4.50% 2.40 288.53% 100.00%

42,300,000.00

127.00

60.00

5.28% 2.40 76.34% 100.00%

0.00

-3.00

1.15

0.00% 76.00%

1,695,000.00

3.81% 1.29 57.65%

0.00%

Current

Original

Summation

Weighted Average

Summation

Weighted Average

Interest Only/Balloon

Cnt

Balance

Term

Rate

DSCR

LTV

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Terms

Total

100,361,987.94

324,801,175.00

Average
Minimum

Maximum

25,090,496.99

-3.90

4.33% 1.51

52.62%

89.36%

23,200,083.93

98.55

4.14% 3.92

83.48% 84.84%

32,861,987.94

-2.00

4.22%

4.48% 2.28 102.56% 100.00%

87,595,439.32

120.00

58.00

5.23% 8.73 69.91% 100.00%

16,800,000.00

-7.00

0.50

64.99% 43.00%

747,500.00

3.69% 1.61 28.20%

70.00%

Page 31 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Distribution Of Property Types- Current Status

Summation

Weighted Average

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Property Types

Industrial

0.00

0.00%

0.00

0.00%

0.00

0.00%

Lodging

14,950,040.24

7.62%

(3.00)

4.69%

0.72

76.00%

55.37%

Manufact Housing

0.00

0.00%

0.00

0.00%

0.00

0.00%

Mixed Use

36,039,695.75

18.37%

5.00

4.25%

1.57

100.00%

62.35%

Multifamily

0.00

0.00%

0.00

0.00%

0.00

0.00%

Office

71,566,442.95

36.47%

(2.69)

4.20%

1.14

70.70%

143.70%

Retail

73,661,987.94

37.54%

(4.23)

4.36%

1.87

100.00%

78.42%

Self Storage

0.00

0.00%

0.00

0.00%

0.00

0.00%

Various

0.00

0.00%

0.00

0.00%

0.00

0.00%

Total

196,218,166.88

Stratification - Property Types

Distribution Of Property Types- Closing Status

Summation

Weighted Average

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Property Types

Industrial

69,310,000.00

5.24%

104.74

4.49%

1.88

94.92%

65.58%

Lodging

296,340,398.08

22.42%

94.31

4.36%

4.17

79.19%

54.44%

Manufact Housing

50,245,000.00

3.80%

119.25

4.16%

1.63

83.86%

73.55%

Mixed Use

119,655,852.75

9.05%

121.90

4.24%

1.64

93.06%

67.55%

Multifamily

128,434,210.17

9.72%

116.00

4.30%

1.48

95.01%

72.69%

Office

182,220,804.07

13.78%

115.74

4.25%

1.80

93.09%

65.61%

Retail

404,167,987.02

30.57%

115.50

4.40%

1.68

97.76%

68.58%

Self Storage

27,807,316.03

2.10%

118.82

4.25%

1.50

84.51%

72.31%

Various

43,709,429.26

3.31%

119.00

4.14%

1.48

48.61%

70.42%

Total

103 1,321,890,997.38

Stratification - Property Types

Average
Minimum

Maximum

21,802,018.54

-1.88

4.31%

1.46

65.46%

89.68%

12,710,490.36

111.17

4.33%

2.23

97.52%

87.49%

36,039,695.75

5.00

3.86%

5.13%

2.40 288.53% 100.00%

87,595,439.32

127.00

55.00

5.46%

8.73 76.34% 100.00%

0.00

-7.00

0.50

0.00%

43.00%

747,500.00

3.69%

1.29 28.20%

0.00%

Page 32 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Distribution by Geographic Location - Current Status

Summation

Weighted Average

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Geographic

Alaska

0.00

0.00%

0.00

0.00%

0.00

0.00%

Arizona

0.00

0.00%

0.00

0.00%

0.00

0.00%

Arkansas

0.00

0.00%

0.00

0.00%

0.00

0.00%

California

32,978,487.59

16.81%

-2.81

4.22%

0.74

53.15%

91.48%

Colorado

0.00

0.00%

0.00

0.00%

0.00

0.00%

Delaware

22,718,696.60

11.58%

-3.00

3.97%

1.15

76.00%

118.33%

Florida

0.00

0.00%

0.00

0.00%

0.00

0.00%

Georgia

0.00

0.00%

0.00

0.00%

0.00

0.00%

Hawaii

0.00

0.00%

0.00

0.00%

0.00

0.00%

Idaho

0.00

0.00%

0.00

0.00%

0.00

0.00%

Illinois

40,800,000.00

20.79%

-2.00

4.48%

2.16

100.00%

87.09%

Iowa

0.00

0.00%

0.00

0.00%

0.00

0.00%

Kansas

0.00

0.00%

0.00

0.00%

0.00

0.00%

Louisiana

0.00

0.00%

0.00

0.00%

0.00

0.00%

Maryland

0.00

0.00%

0.00

0.00%

0.00

0.00%

Michigan

0.00

0.00%

0.00

0.00%

0.00

0.00%

Minnesota

0.00

0.00%

0.00

0.00%

0.00

0.00%

Mississippi

0.00

0.00%

0.00

0.00%

0.00

0.00%

Missouri

36,039,695.75

18.37%

5.00

4.25%

1.57

100.00%

62.35%

Nevada

0.00

0.00%

0.00

0.00%

0.00

0.00%

New Mexico

0.00

0.00%

0.00

0.00%

0.00

0.00%

New York

0.00

0.00%

0.00

0.00%

0.00

0.00%

Ohio

0.00

0.00%

0.00

0.00%

0.00

0.00%

Oregon

0.00

0.00%

0.00

0.00%

0.00

0.00%

Pennsylvania

0.00

0.00%

0.00

0.00%

0.00

0.00%

South Carolina

0.00

0.00%

0.00

0.00%

0.00

0.00%

Tennessee

0.00

0.00%

0.00

0.00%

0.00

0.00%

Texas

30,819,299.00

15.71%

-2.49

4.59%

1.36

88.15%

175.43%

Various

32,861,987.94

16.75%

-7.00

4.22%

1.52

100.00%

67.65%

Virginia

0.00

0.00%

0.00

0.00%

0.00

0.00%

Wisconsin

0.00

0.00%

0.00

0.00%

0.00

0.00%

Total

196,218,166.88

Stratification - Geographic Distribution

Distribution by Geographic Location - Closing Status

Summation

Weighted Average

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Geographic

Alaska

24,970,804.07

1.89%

119.00

4.59%

1.49

86.00%

73.88%

Arizona

35,500,000.00

2.69%

108.00

4.82%

1.92

89.42%

65.97%

Arkansas

4,200,000.00

0.32%

119.00

4.33%

1.95

99.50%

70.00%

California

270,578,508.13

20.47%

114.46

4.33%

1.76

93.16%

66.54%

Colorado

50,109,429.26

3.79%

119.00

4.18%

1.45

88.14%

71.34%

Delaware

34,491,395.19

2.61%

119.00

4.20%

1.89

94.75%

66.64%

Florida

43,344,589.70

3.28%

119.51

4.39%

2.06

87.01%

67.80%

Georgia

5,360,000.00

0.41%

120.00

4.69%

1.63

95.90%

74.97%

Hawaii

18,825,889.70

1.42%

119.00

4.18%

1.53

88.20%

64.92%

Idaho

7,350,000.00

0.56%

119.00

4.30%

1.54

93.40%

75.00%

Illinois

71,664,979.01

5.42%

119.61

4.30%

1.59

100.00%

68.10%

Iowa

780,000.00

0.06%

120.00

5.23%

1.90

100.00%

65.00%

Kansas

8,500,000.00

0.64%

119.00

4.16%

1.46

100.00%

74.24%

Louisiana

19,458,449.11

1.47%

55.00

4.97%

1.99

78.50%

60.60%

Maryland

6,500,000.00

0.49%

120.00

4.71%

1.60

97.10%

65.66%

Michigan

28,518,551.73

2.16%

106.43

4.62%

1.75

96.41%

69.20%

Minnesota

16,000,000.00

1.21%

120.00

5.18%

1.82

79.10%

65.31%

Mississippi

2,396,943.59

0.18%

119.00

4.20%

1.82

92.80%

68.48%

Missouri

42,300,000.00

3.20%

127.00

4.25%

1.57

100.00%

73.18%

Nevada

30,050,000.00

2.27%

119.86

4.46%

1.47

99.26%

73.61%

New Mexico

22,125,000.00

1.67%

120.00

4.17%

1.41

98.00%

75.00%

New York

77,835,261.49

5.89%

119.00

4.41%

1.76

96.55%

62.78%

Ohio

20,573,592.57

1.56%

119.00

4.17%

1.73

100.00%

68.84%

Oregon

21,650,000.00

1.64%

119.73

4.36%

1.86

85.09%

63.86%

Pennsylvania

70,650,000.00

5.34%

119.70

4.26%

1.74

62.25%

69.38%

South Carolina

12,688,703.25

0.96%

97.22

4.59%

1.68

90.60%

69.40%

Tennessee

4,125,000.00

0.31%

119.00

4.15%

1.50

88.40%

74.46%

Texas

177,430,225.58

13.42%

111.38

4.41%

1.65

91.53%

70.28%

Various

170,363,675.00

12.89%

83.43

3.94%

5.78

81.15%

45.60%

Virginia

3,900,000.00

0.30%

119.00

4.38%

1.63

100.00%

66.10%

Wisconsin

19,650,000.00

1.49%

120.00

4.89%

1.57

82.80%

76.10%

Total

103

1,321,890,997.38

Stratification - Geographic Distribution

Page 33 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Distribution of Loan Seasoning

Summation

Weighted Average

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Terms

0 - 23

0.00

0.00%

0.00

0.00%

0.00

0.00%

24 - 59

0.00

0.00%

0.00

0.00%

0.00

0.00%

60 - 89

0.00

0.00%

0.00

0.00%

0.00

0.00%

90 - 119

0.00

0.00%

0.00

0.00%

0.00

0.00%

120 - plus

196,218,166.88

100.00%

(1.88)

4.31%

1.46

87.49%

97.52%

Total

196,218,166.88

Stratification - Financial Ratios and Other

Distribution of Debt Service Coverage Ratios (DSCRs)- Most Recent

Summation

Weighted Average

OCC

LTV

Rate

Term

Balance

Cnt

Ratios

0.0100 - 1.1999

64,368,736.84

32.80%

(3.00)

4.24%

62.31%

95.04%

1.2000 - 1.3999

0.00

0.00%

0.00

0.00%

1.4000 - 1.5999

68,901,683.69

35.11%

(0.72)

4.24%

100.00%

64.88%

1.6000 - 1.7999

6,278,487.59

3.20%

(2.00)

4.22%

96.30%

66.09%

1.8000 - 1.9999

32,669,258.76

16.65%

(2.00)

4.49%

99.81%

173.58%

2.0000 - 2.1999

0.00

0.00%

0.00

0.00%

2.2000 - plus

24,000,000.00

12.23%

(2.00)

4.48%

100.00%

102.56%

Total

196,218,166.88

Stratification - Financial Ratios and Other

Average
Minimum

Maximum

21,802,018.54

-1.88

4.31%

1.46

97.52% 87.49%

36,039,695.75

5.00

3.86%

5.13%

2.40 288.53% 100.00%

0.00

-7.00

0.50

0.00% 43.00%

Max DSCR

2.40

0.50

Min DSCR

Distribution of Maturity Dates

Summation

Weighted Average

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Year

2025

160,178,471.13

81.63%

(3.43)

4.32%

1.44

84.67%

105.43%

2026

36,039,695.75

18.37%

5.00

4.25%

1.57

100.00%

62.35%

Total

196,218,166.88

Distribution of Loan-to-values (LTVs)

Summation

Weighted Average

DSCR

OCC

Rate

Term

Balance

Cnt

Ratios

0.0100 - 0.4999

0.00

0.00%

0.00

0.00%

0.00

0.5000 - 0.5999

14,950,040.24

7.62%

(3.00)

4.69%

76.00%

0.72

0.6000 - 0.6999

91,980,171.28

46.88%

(1.04)

4.28%

99.75%

1.64

0.7000 - 0.7999

0.00

0.00%

0.00

0.00%

0.00

0.8000 - 0.8999

0.00

0.00%

0.00

0.00%

0.00

0.9000 - 0.9999

89,287,955.36

45.50%

(2.55)

4.28%

76.78%

1.40

Total

196,218,166.88

Max LTV

Min LTV

288.53%

0.00%

Distribution by Amortization Type

Summation

Weighted Average

OCC

LTV

DSCR

Rate

Term

Balance

Cnt

Amortization Type

Amortizing Balloon

14,950,040.24

7.62%

(3.00)

4.69%

0.72

76.00%

55.37%

Interest Only/Balloon

100,361,987.94

51.15%

(3.90)

4.33%

1.51

84.84%

83.48%

Interest Only/Amortizing/Balloon

80,906,138.70

41.23%

0.84

4.22%

1.54

92.90%

122.72%

Total

196,218,166.88

Distribution of Occupancy Percentages

Summation

Weighted Average

DSCR

LTV

Rate

Term

Balance

Cnt

Percentages

1% - 50%

117,749,430.04

60.01%

(1.48)

4.27%

1.02

1.38

50% - 60%

0.00

0.00%

0.00

0.00%

0.00

60% - 70%

0.00

0.00%

0.00

0.00%

0.00

70% - 80%

0.00

0.00%

0.00

0.00%

0.00

80% - 90%

78,468,736.84

39.99%

(2.48)

4.37%

0.90

1.59

Total

196,218,166.88

Max Occ

Min Occ

100.00

43.00

Page 34 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Liquidation Components (time of resolution)

Investor
No.

Subsequent Adjustments

Adjustment

Date

Minor

Adjustment

Cumulative

Adjustments

Cumulative

Adjusted Loss

Period

Liquidation

Proceeds

Liquidation

Expense

Net Liquidation

Proceeds

Realized Loss

to Trust

Expense to

the Trust

Liquidation

Sales Price

Most Recent

Appraisal

Beginning

Balance

21,315,926.39

13,000,000.00

0.00

13,920,126.54

2,814,820.97

11,105,305.57

10,210,620.82

0.00

10,210,620.82

149,661.52

08/2023

17,300,000.00

16,700,000.00

0.00

8,904,594.98

244,868.51

8,659,726.47

8,640,273.53

0.00

8,640,273.53

57,366.39

06/2021

38,615,926.39

29,700,000.00

22,824,721.52

3,059,689.48

19,765,032.04

18,850,894.35

207,027.91

0.00

18,850,894.35

Totals

Historical Loss Liquidation

Page 35 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Liquidation Summary

Investor
No.

Cash Adjustment

Cash

Recovery (9)

Curr Certificate

Writedown Adj.(10)

Period

Certificate Level

Prior Certificate

Writedown (3)

OC, Credit

Support (4)

Shortfalls/

Excesses (5)

Modification,
ARA Adjs (6)

Subseq Claims

Recoveries (7)

Curr Certificate

Writedown (8)

Beginning

Balance (1)

Aggregate

Loss (2)

202308

21,315,926.39

10,210,620.82

0.00

10,210,620.82

0.00

202106

17,300,000.00

8,640,273.53

0.00

8,640,273.53

0.00

Loan Status Code

6 Modification Adjustments/Appraisal Reduction Adjustments
7 Additional (Recoveries) Expenses applied to Realized Losses
8 Realized Loss Applied to Certificates to Date ((3) -(4) - (5) - (6) + (7))
9 Recoveries of Realized Losses Paid as Cash
10 Recoveries/Realized Losses applied to Certificate Interest

1 Current Scheduled Beginning Balance of the Loan at Liquidation
2 Aggregate Realized Loss on Loans
3 Prior Realized Loss Applied to Certificates
4 Amounts covered by Overcollaterization and other Credit Supports
5 Interest (Shortages)/Excesses applied to Realized Losses

Note: In the initial period, the Realized Loss Applied to certificates to Date will equal Aggregate Realized Loss on Loans ( - (4) - (5) -(6) +(7)) versus ( (3) - (4) - (5) -(6) +(7))

Historical Bond/Collateral Realized Loss Reconciliation

Page 36 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Principal Components

Begin Bal

Current P&I

Principal

Ending Bal

Interest

Rate

Accrual

Interest

PTD

Investor
No.

Static

Prop
Type State

Amort

Type

Cutoff

Maturity

Financial

Most Recent

Cutoff

DSCR

LTV

Phy

Occ %

Current Status

Loan

Status

DSCR

LTV

Phy

Occ %

Rsln

Strgy Dfsd

36,115,613.21

75,917.46

36,039,695.75

132,173.11

MU MO

1.57

62.4%

1.57

73.2%

4.2500%

Act/360

8/6/2025

1/6/2026

100.0%

32,970,852.93

108,864.99

32,861,987.94

119,812.42

RT Var

1.52

67.6%

1.83

69.9%

4.2200%

Act/360

8/1/2025

1/1/2025

100.0%

26,700,000.00

0.00

26,700,000.00

97,024.83

0.50

97.4%

1.93

54.5%

4.2200%

Act/360

7/6/2025

5/6/2025

43.0%

99.7%

22,766,685.47

47,988.87

22,718,696.60

77,830.44

1.15

118.3%

1.91

67.3%

3.9700%

Act/360

7/6/2025

5/6/2025

76.0%

100.0%

24,000,000.00

0.00

24,000,000.00

92,586.67

2.28

102.6%

1.68

66.9%

4.4800%

Act/360

5/6/2025

6/6/2025

100.0%

14,985,357.04

35,316.80

14,950,040.24

60,520.03

0.72

55.4%

1.94

68.4%

4.6900%

Act/360

6/6/2025

5/6/2025

76.0%

80.4%

15,899,863.52

30,604.76

15,869,258.76

61,611.97

1.96

288.5%

1.96

60.7%

4.5000%

Act/360

7/6/2025

6/6/2025

99.6%

16,800,000.00

0.00

16,800,000.00

64,810.67

1.98

65.0%

1.71

65.0%

4.4800%

Act/360

6/6/2025

100.0%

6,291,168.74

12,681.15

6,278,487.59

22,842.45

1.77

66.1%

1.77

66.5%

4.2165%

Act/360

6/6/2025

96.3%

2,980,854.44

0.00

9,908.03

2.40

0.0%

2.40

73.5%

3.8600%

Act/360

8/6/2025

5/6/2025

93.5%

2,656,547.20

0.00

11,725.00

1.56

0.0%

1.56

64.5%

5.1255%

Act/360

8/6/2025

6/6/2025

100.0%

202,166,942.55

5,948,775.67

196,218,166.88

750,845.62

1 Modification
2 Foreclosure
3 Bankruptcy
4 Extension
5 Note Sale
6 DPO
7 REO
8 Resolved

Resolution Strategy Code

9 Pending Return
to Master Servicer
10 Deed in Lieu Of
Foreclosure
11 Full Payoff
12 Reps and Warranties
13 TBD
98 Other

0 Current
A Grace
B 0 - 29 Days
1 30 Days Delinquent
2 60 Days Delinquent

Loan Status Code

Property Type Code

Amortization Type

3 90 Days Delinquent
4 Matured Balloon
5 Non Performing
Matured Balloon
6 121+ Days
Delinquent

Multi-Family

Retail

Health Care

Industrial

Warehouse

Mobile Home Park

Office

Mixed Use

1 Fully Amortizing
2 Amortizing Balloon
3 Interest Only/Balloon
4 Interest Only/Amortizing
5 Interest Only/Amortizing/Balloon
6 Principal Only
7 Hyper-Amortization
98 Other

Lodging

Self Storage

Other

Securities

Cooperative
Housing

Missing
Information

Single Family

Defeasance Status Code

P Portion of Loan Previously
Defeased
F Full Defeasance
N No Defeasance Occurred
X Defeasance not Allowable

Loan Level Detail

Page 37 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Status/Resolutions

Remaining

Life

Investor
No.

Static

Prop
Type

State

Amort

Type

Cutoff

Maturity

Financial

Most Recent

Cutoff

Paid Through

Date

Loan

Status

Spec Serv

Trans Date

Resoln

Strategy

Balance/Rate/Terms

Scheduled

Balance

Actual

Balance

Note
Rate

Amort

DSCR

LTV

DSCR

LTV

Phy

Occ %

Phy

Occ %

Loan Status (0,A,B)

Total

Resolution Strategy Code

1 Modification
2 Foreclosure
3 Bankruptcy
4 Extension
5 Note Sale

6 DPO
7 REO
8 Resolved
9 Pending Return
to Master Servicer

10 Deed in Lieu Of
Foreclosure
11 Full Payoff
12 Reps and Warranties
13 TBD
98 Other

Loan Status Code

0 Current
A Grace
B 0 - 29 Days
1 30 Days Delinquent
2 60 Days Delinquent

3 90 Days Delinquent
4 Matured Balloon
5 Non Performing
Matured Balloon
6 121+ Days Delinquent

Property Type Code

Office

Mixed Use

Lodging

Self Storage

Other

SE Securities

Multi-Family

Retail

Health Care

Industrial

Warehouse

Mobile Home Park

Cooperative Housing

Missing Information

Single Family

Specially Serviced Loan Detail

Page 38 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Status/Resolutions

Investor
No.

Description

Paid Through

Date

Loan

Status

Spec Serv

Trans Date

Resoln

Strategy

Specially Serviced Loan Comments

Page 39 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

ASER

Investor
No.

Appraisal Reduction Components

Scheduled

Balance

Appraisal

Reduction Amt

Actual

Balance

Status/Resolutions

PTD

Loan

Status

Appraisal

Redn Date

Resoln

Strategy

Most Recent

Cutoff

DSCR

LTV

Phy

Occ %

DSCR

LTV

Phy

Occ %

Static

Prop
Type

State

Amort

Type

Cutoff

Maturity

05/06/2025

06/06/2025

14,950,040.24

3,755,620.25

15,022,481.01

15,151.32

0.72

1.94

76.00%

80.40%

55.37%

68.44%

07/07/2025

06/06/2025

07/06/2025

15,869,258.76

9,481,252.60

15,899,863.52

1,183.84

1.96

99.60%

288.53%

60.67%

01/06/2025

30,819,299.00

13,236,872.85

16,335.16

30,922,344.53

Resolution Strategy Code

1 Modification
2 Foreclosure
3 Bankruptcy
4 Extension
5 Note Sale

6 DPO
7 REO
8 Resolved
9 Pending Return
to Master Servicer

10 Deed in Lieu Of
Foreclosure
11 Full Payoff
12 Reps and Warranties
13 TBD
98 Other

Loan Status Code

0 Current
A Grace
B 0 - 29 Days
1 30 Days Delinquent
2 60 Days Delinquent

3 90 Days Delinquent
4 Matured Balloon
5 Non Performing
Matured Balloon
6 121+ Days Delinquent

Property Type Code

Office

Mixed Use

Lodging

Self Storage

Other

SE Securities

Multi-Family

Retail

Health Care

Industrial

Warehouse

Mobile Home Park

Cooperative Housing

Missing Information

SF Single Family

Appraisal Reduction Detail

Page 40 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Status/Resolutions

Investor
No.

Description

PTD

Loan

Status

Appraisal

Redn Date

Resoln

Strategy

Appraisal Reduction Comments

Page 41 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Rate

Investor
No.

Description

Date

Modification Components

Type

Modification

Balance

P&I Amount

Modification Terms

P&I Amount

Maturity

Rate

Balance

Cutoff/Current

Maturity

14,950,040.24

95,836.83

18,478,877.48

95,836.83

5/6/2025

4.69%

14,950,040.24

18,478,877.48

95,836.83

Modification Type

1 Maturity Date
2 Amortization Change
3 Principal Write-off
5 Temporary Rate Reduction
6 Capitalization of Interest

7 Capitalization on Taxes
8 Other
9 Combination
10 Forbearance

Modifications/Extensions Detail/Description

Page 42 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Investor
No.

Date

Appraisal Information

Type

REO

Scheduled

Balances

Actual

Most Recent

Appraisal

Date

Cutoff

Maturity

Amort

Type

State

Prop
Type

Static

Liquidation Detail

Type

Appraisal

Redn Amt

Liquidation

Date

Net Liquidation

Proceeds

Realized

Loss

DSCR

City

12,182,973.18

10/01/2021

13,000,000.00

13,920,126.54

10,210,620.82

21,315,926.39

08/01/2023

05/06/2025

02/06/2023

0.64

Anchorage

2,110,305.68

06/07/2022

4,900,000.00

7,971,440.83

0.00

5,405,962.24

05/01/2023

05/06/2025

04/06/2023

0.00

Richardson

9,481,252.60

03/01/2022

15,899,863.52

5,500,000.00

0.00

15,899,863.52

06/06/2025

01/06/2025

0.00

Houston

10,210,620.82

21,891,567.37

23,400,000.00

15,899,863.52

42,621,752.15

23,774,531.46

REO Type

4 Final Recovery REO
5 Permitted Purchase of REO

1 Paid-in-Full
2 Final Recovery Mode
3 Permitted Purchase

4 Interest Only/Amortizing
5 Interest Only/Amortizing/Balloon
6 Principal Only

1 Fully Amortizing
2 Amortizing Balloon
3 Interest Only/Balloon

Amortization Type

7 Hyper-Amortization
98 Other

REO Historical Detail

Page 43 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Status/Resolutions

Investor
No.

PTD

Loan

Status

Breach or

Defect Date

Resoln

Strategy

Description

Material Breaches and Document Defects

Page 44 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

Control Termination Event

Information with respect to any declared bankruptcy of any Mortgage Loan Borrower

Special Servicer Termination Event

Servicer Termination Event

Loan Event of Default

Special Servicing Loan Event

Extraordinary Event

Page 45 of 46

Mortgage Pass-Through Certificates

COMM 2015-LC21

August 12, 2025

SEC Central Index Key (if applicable)

ABS-15G file Reference

Form ABS-15G - Reference

Deutsche Mortgage & Asset Receiving Corporation

0001013454

February 13, 2025

German American Capital Corporation

0001541294

February 13, 2025

Ladder Capital Finance LLC

0001541468

February 14, 2025

Cantor Commercial Real Estate Lending, L.P.

0001558761

August 07, 2025

KeyBank National Association

0001089877

April 30, 2025

Rule 15Ga-1(a) - repurchases/replacements - Reference

Investor
No.

Asset Name

Asset Originator

Ending Balance

Most Recent Appraisal

Repurchase/Replacement

Status(1)

Status:

Requested
Pending
Executed
Not Executed

Rule 15Ga Information

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