Citigroup Commercial Mortgage Trust 2017-C4

05/27/2026 | Press release | Distributed by Public on 05/27/2026 07:42

Asset-Backed Issuer Distribution Report (Form 10-D)


Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
STATEMENT TO NOTEHOLDERS
May 14, 2026
TRANSACTION PARTIES
Depositor: Citigroup Commercial Mortgage Securities Inc.
Master Servicer: Midland Loan Services, a Division of PNC Bank N.A.
Certificate Administrator: Citibank, N.A.
Trustee: Wilmington Trust, National Association
Special Servicer: Midland Loan Services, a Division of PNC Bank N.A.
Asset Representations Reviewer /
Park Bridge Lender Services LLC
Operating Advisor:
Danny Lee Citibank, Agency and Trust
(212) 816-4936 388 Greenwich Street Trading, 4th Floor
[email protected] New York, NY 10013
TABLE OF CONTENTS
1 . Distribution Summary 2
1.1 . Summary 2
1.2 . Factors 3
2 . Distribution Detail 4
2.1 . Interest Detail 4
2.2 . Interest Shortfall Detail 5
2.3 . Principal Detail 6
3 . Reconciliation Detail 7
4 . Other Information 8
5 . Stratification Detail 9
6 . Mortgage Loan Detail 14
7 . NOI Detail 16
8 . Delinquency Loan Detail 18
9 . Collateral Performance Delinquency and Loan Status Detail 19
10 . Appraisal Reduction Detail 20
11 . Historical Appraisal Reduction Detail 21
12 . Loan Modification Detail 24
13 . Historical Loan Modification Detail 25
14 . Specially Serviced Loan Detail 35
15 . Historical Specially Serviced Loan Detail 36
16 . Unscheduled Principal Detail 40
17 . Historical Unscheduled Principal Detail 41
18 . Liquidated Loan Detail 42
19 . Historical Liquidated Loan Detail 43
20 . CREFC Investor Reporting Package Legends 44
21 . Notes 45
Reports Available at sf.citidirect.com v. 21.09.28 Page 1 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
DISTRIBUTION SUMMARY
May 14, 2026
Accretion
&
Non-Cash
Accrual Other Balance
Original Prior Pass-Through Day Interest (As Interest) Principal Total Realized Loss Increase/ Current
Class Balance Balance Rate Count Distributed Distributed Distributed Distributed /(Recovery) (Decrease) Balance
A-1 27,750,000.00 - 2.121000 % 30/360 - - - - - - -
A-2 103,900,000.00 - 3.190000 % 30/360 - - - - - - -
A-3 240,000,000.00 199,739,590.64 3.209000 % 30/360 534,136.96 - - 534,136.96 - - 199,739,590.64
A-4 271,691,000.00 271,691,000.00 3.471000 % 30/360 785,866.22 - - 785,866.22 - - 271,691,000.00
A-AB 40,600,000.00 11,073,378.96 3.297000 % 30/360 30,424.11 - 801,786.01 832,210.12 - - 10,271,592.95
A-S 73,280,000.00 73,280,000.00 3.764000 % 30/360 229,854.93 - - 229,854.93 - - 73,280,000.00
B 45,189,000.00 45,189,000.00 4.096000 % 30/360 154,245.12 - - 154,245.12 - - 45,189,000.00
C 40,304,000.00 40,304,000.00 4.135583 % 30/360 138,900.45 - - 138,900.45 - - 40,304,000.00
D 29,311,000.00 29,311,000.00 3.000000 % 30/360 73,277.50 - - 73,277.50 - - 29,311,000.00
E-RR 21,984,000.00 21,984,000.00 4.385583 % 30/360 80,343.88 - - 80,343.88 - - 21,984,000.00
F-RR 12,214,000.00 12,214,000.00 4.385583 % 30/360 44,637.93 - - 44,637.93 - - 12,214,000.00
G-RR 12,213,000.00 12,213,000.00 4.385583 % 30/360 44,634.27 - - 44,634.27 - - 12,213,000.00
H-RR 9,770,000.00 9,770,000.00 4.385583 % 30/360 35,705.96 - - 35,705.96 - - 9,770,000.00
J-RR 48,853,893.00 48,853,893.00 4.385583 % 30/360 175,783.71 - - 175,783.71 - - 48,853,893.00
S - - 0.000000 % 30/360 - - - - - - -
R - - 0.000000 % 30/360 - - - - - - -
Total 977,059,893.00 775,622,862.60 2,327,811.04 - 801,786.01 3,129,597.05 - - 774,821,076.59
Notional
X-A 757,221,000.00 555,783,969.60 0.973576 % 30/360 450,915.09 - - 450,915.09 - (801,786.01 ) 554,982,183.59
X-B 85,493,000.00 85,493,000.00 0.270922 % 30/360 19,301.64 - - 19,301.64 - - 85,493,000.00
X-D 29,311,000.00 29,311,000.00 1.385583 % 30/360 33,844.02 - - 33,844.02 - - 29,311,000.00
Total 872,025,000.00 670,587,969.60 504,060.75 - - 504,060.75 - (801,786.01 ) 669,786,183.59
Grand Total 1,849,084,893 1,446,210,832 2,831,871.79 - 801,786.01 3,633,657.80 - (801,786.01 ) 1,444,607,260
Reports Available at sf.citidirect.com v. 21.09.28 Page 2 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
DISTRIBUTION SUMMARY - FACTORS
May 14, 2026
Accretion
&
Non-Cash
Other Balance
Record Interest (As Interest) Principal Total Realized Loss Increase/ Current
Class CUSIP Date Distributed Distributed Distributed Distributed /(Recovery) (Decrease) Balance
A-1 17326 FAA5 04/30/2026 - - - - - - -
A-2 17326 FAB3 04/30/2026 - - - - - - -
A-3 17326 FAC1 04/30/2026 2.22557067 - - 2.22557067 - - 832.24829433
A-4 17326 FAD9 04/30/2026 2.89250001 - - 2.89250001 - - 1,000.00000000
A-AB 17326 FAE7 04/30/2026 0.74936232 - 19.74842389 20.49778621 - - 252.99490025
A-S 17326 FAH0 04/30/2026 3.13666662 - - 3.13666662 - - 1,000.00000000
X-A 17326 FAF4 04/30/2026 0.59548677 - - 0.59548677 - - 732.91969397
B 17326 FAJ6 04/30/2026 3.41333333 - - 3.41333333 - - 1,000.00000000
C 17326 FAK3 04/30/2026 3.44631922 - - 3.44631922 - - 1,000.00000000
X-B 17326 FAG2 04/30/2026 0.22576866 - - 0.22576866 - - 1,000.00000000
D 17326FAL1 U1746HAA4 04/30/2026 2.50000000 - - 2.50000000 - - 1,000.00000000
X-D 17326FAY3 U1746HAG1 04/30/2026 1.15465252 - - 1.15465252 - - 1,000.00000000
E-RR 17326 FAP2 04/30/2026 3.65465247 - - 3.65465247 - - 1,000.00000000
F-RR 17326 FAR8 04/30/2026 3.65465286 - - 3.65465286 - - 1,000.00000000
G-RR 17326 FAT4 04/30/2026 3.65465242 - - 3.65465242 - - 1,000.00000000
H-RR 17326 FAV9 04/30/2026 3.65465302 - - 3.65465302 - - 1,000.00000000
J-RR 17326 FAX5 04/30/2026 3.59815153 - - 3.59815153 - - 1,000.00000000
S 17326 FBD8 04/30/2026 - - - - - - -
R 17326 FBA4 04/30/2026 - - - - - - -
Reports Available at sf.citidirect.com v. 21.09.28 Page 3 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
DISTRIBUTION INFORMATION - INTEREST DETAIL
May 14, 2026
Rate Interest Shortfall Paid
Cap
Accrual Net Accreted Non Carry Cap Carryover Carryover
Class Uncapped Capped Next Dates Accrued /Deferred Recovered Forward /Basis Risk Accrued Carry Forward /Basis Risk Total
A-1 2.12100 % 2.12100 % 2.12100 % 04/01-04/30 - - - - - - - - -
A-2 3.19000 % 3.19000 % 3.19000 % 04/01-04/30 - - - - - - - - -
A-3 3.20900 % 3.20900 % 3.20900 % 04/01-04/30 534,136.96 - - - - 534,136.96 - - 534,136.96
A-4 3.47100 % 3.47100 % 3.47100 % 04/01-04/30 785,866.22 - - - - 785,866.22 - - 785,866.22
A-AB 3.29700 % 3.29700 % 3.29700 % 04/01-04/30 30,424.11 - - - - 30,424.11 - - 30,424.11
A-S 3.76400 % 3.76400 % 3.76400 % 04/01-04/30 229,854.93 - - - - 229,854.93 - - 229,854.93
B 4.09600 % 4.09600 % 4.09600 % 04/01-04/30 154,245.12 - - - - 154,245.12 - - 154,245.12
C 4.34400 % 4.13558 % 4.13558 % 04/01-04/30 138,900.45 - - - - 138,900.45 - - 138,900.45
D 3.00000 % 3.00000 % 3.00000 % 04/01-04/30 73,277.50 - - - - 73,277.50 - - 73,277.50
E-RR 4.59400 % 4.38558 % 4.38558 % 04/01-04/30 80,343.88 - - - - 80,343.88 - - 80,343.88
F-RR 4.59400 % 4.38558 % 4.38558 % 04/01-04/30 44,637.93 - - - - 44,637.93 - - 44,637.93
G-RR 4.59400 % 4.38558 % 4.38558 % 04/01-04/30 44,634.27 - - - - 44,634.27 - - 44,634.27
H-RR 4.59400 % 4.38558 % 4.38558 % 04/01-04/30 35,705.96 - - - - 35,705.96 - - 35,705.96
J-RR 4.59400 % 4.38558 % 4.38558 % 04/01-04/30 178,544.01 - - 3,959.12 - 175,783.71 - - 175,783.71
S 0.00000 % 0.00000 % 0.00000 % 04/01-04/30 - - - - - - - - -
R 0.00000 % 0.00000 % 0.00000 % 04/01-04/30 - - - - - - - - -
Total 2,330,571.34 - - 3,959.12 - 2,327,811.04 - - 2,327,811.04
Notional
X-A 1.27500 % 0.97358 % 0.97358 % 04/01-04/30 450,915.09 - - - - 450,915.09 - - 450,915.09
X-B 0.38100 % 0.27092 % 0.27092 % 04/01-04/30 19,301.64 - - - - 19,301.64 - - 19,301.64
X-D 1.59400 % 1.38558 % 1.38558 % 04/01-04/30 33,844.02 - - - - 33,844.02 - - 33,844.02
Total 504,060.75 - - - - 504,060.75 - - 504,060.75
Grand Total 2,834,632.09 - - 3,959.12 - 2,831,871.79 - - 2,831,871.79
Reports Available at sf.citidirect.com v. 21.09.28 Page 4 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
DISTRIBUTION INFORMATION - INTEREST SHORTFALL DETAIL
May 14, 2026
Cap Carryover /
Non-Recov Shortfall Carry Forward Interest Basis Risk Shortfall
Other
Class PPIS SSRA Shortfall Prior Int. on Prior New Paid Outstanding Prior Int. on Prior New Paid Outstanding
A-1 - - - - - - - - - - - - -
A-2 - - - - - - - - - - - - -
A-3 - - - - - - - - - - - - -
A-4 - - - - - - - - - - - - -
A-AB - - - - - - - - - - - - -
A-S - - - - - - - - - - - - -
B - - - - - - - - - - - - -
C - - - - - - - - - - - - -
D - - - - - - - - - - - - -
E-RR - - - - - - - - - - - - -
F-RR - - - - - - - - - - - - -
G-RR - - - - - - - - - - - - -
H-RR - - - - - - - - - - - - -
J-RR - - - 328,026.94 1,198.82 2,760.30 - 331,986.06 - - - - -
S - - - - - - - - - - - - -
R - - - - - - - - - - - - -
Total - - - 328,026.94 1,198.82 2,760.30 - 331,986.06 - - - - -
Notional
X-A - - - - - - - - - - - - -
X-B - - - - - - - - - - - - -
X-D - - - - - - - - - - - - -
Total - - - - - - - - - - - - -
Grand Total - - - 328,026.94 1,198.82 2,760.30 - 331,986.06 - - - - -
Reports Available at sf.citidirect.com v. 21.09.28 Page 5 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
DISTRIBUTION INFORMATION - PRINCIPAL DETAIL
May 14, 2026
Accretion
&
Non-Cash
Balance Cumulative
Prior Principal Accreted Realized Loss Increase/ Current Realized Class % Class % Sub % Sub %
Class Balance Distributed Principal /(Recovery) (Decrease) Balance Loss Original Current Original Current
A-1 - - - - - - - 2.84 % 0.00 % 30.00 % 37.83 %
A-2 - - - - - - - 10.63 % 0.00 % 30.00 % 37.83 %
A-3 199,739,590.64 - - - - 199,739,590.64 - 24.56 % 25.78 % 30.00 % 37.83 %
A-4 271,691,000.00 - - - - 271,691,000.00 - 27.81 % 35.06 % 30.00 % 37.83 %
A-AB 11,073,378.96 801,786.01 - - - 10,271,592.95 - 4.16 % 1.33 % 30.00 % 37.83 %
A-S 73,280,000.00 - - - - 73,280,000.00 - 7.50 % 9.46 % 22.50 % 28.37 %
B 45,189,000.00 - - - - 45,189,000.00 - 4.62 % 5.83 % 17.88 % 22.54 %
C 40,304,000.00 - - - - 40,304,000.00 - 4.13 % 5.20 % 13.75 % 17.34 %
D 29,311,000.00 - - - - 29,311,000.00 - 3.00 % 3.78 % 10.75 % 13.56 %
E-RR 21,984,000.00 - - - - 21,984,000.00 - 2.25 % 2.84 % 8.50 % 10.72 %
F-RR 12,214,000.00 - - - - 12,214,000.00 - 1.25 % 1.58 % 7.25 % 9.14 %
G-RR 12,213,000.00 - - - - 12,213,000.00 - 1.25 % 1.58 % 6.00 % 7.57 %
H-RR 9,770,000.00 - - - - 9,770,000.00 - 1.00 % 1.26 % 5.00 % 6.31 %
J-RR 48,853,893.00 - - - - 48,853,893.00 - 5.00 % 6.31 % 0.00 % 0.00 %
S - - - - - - - 0.00 % 0.00 % 0.00 % 0.00 %
R - - - - - - - 0.00 % 0.00 % 0.00 % 0.00 %
Total 775,622,862.60 801,786.01 - - - 774,821,076.59 - 100.00 % 100.00 %
Reports Available at sf.citidirect.com v. 21.09.28 Page 6 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
RECONCILIATION DETAIL
May 14, 2026
SOURCE OF FUNDS ALLOCATION OF FUNDS
Interest Funds Available Scheduled Fees
Scheduled Interest 2,849,056.50 Servicing Fee 8,663.97
Gross Prepayment Interest Shortfall - Trustee/Certificate Administrator Fee 4,136.67
Interest Adjustments - Operating Advisor Fee 1,132.51
ASER Amount - Asset Representations Reviewer Ongoing Fee 168.05
Realized Loss in Excess of Principal Balance - CREFC Intellectual Property Royalty License Fee 323.20
Total Interest Funds Available 2,849,056.50 Total Scheduled Fees 14,424.40
Principal Funds Available Additional Fees, Expenses, etc.
Scheduled Principal 801,786.01 Additional Servicing Fee -
Curtailments - Special Servicing Fee 3,500.00
Unscheduled Principal Collections - Work-out Fee 468.84
Net Liquidation Proceeds - Liquidation Fee -
Repurchased Principal - Trust Fund Expenses -
Substitution Principal - Trust Advisor Expenses -
Other Principal - Reimbursement of Interest on Advances to the Servicer (1,208.53 )
Borrower Reimbursable Trust Fund Expenses -
Total Principal Funds Available 801,786.01
Other Expenses -
Other Funds Available
Yield Maintenance Charges - Total Additional Fees, Expenses, etc. 2,760.31
Withdrawal of Withheld Amounts from the Interest Reserve Distributions
Account -
Interest Distribution 2,831,871.79
Deposit of Withheld Amounts to the Interest Reserve Account -
Principal Distribution 801,786.01
Total Other Funds Available - Yield Maintenance Charge Distribution -
Total Distributions 3,633,657.80
Total Funds Available 3,650,842.51
Total Funds Allocated 3,650,842.51
Reports Available at sf.citidirect.com v. 21.09.28 Page 7 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
OTHER INFORMATION
Interest Reserve Account Information
May 14, 2026
Beginning Interest Reserve Account Balance 0.00
Deposit of Withheld Amounts to the Interest Reserve Account 0.00
Withdrawal of Withheld Amounts from the Interest Reserve Account 0.00
Ending Interest Reserve Account Balance 0.00
Excess Liquidation Proceeds Reserve Account Information
Beginning Excess Liquidation Proceeds Reserve Account Balance 0.00
Deposit to the Excess Liquidation Proceeds Reserve Account 0.00
Withdrawal from the Excess Liquidation Proceeds Reserve Account 0.00
Ending Excess Liquidation Proceeds Reserve Account Balance 0.00
ARD Mortgage Loan Information
Excess Interest 0.00
Collateral Information
% of Cut-Off Principal Balance Outstanding 79.301288 %
Controlling Class Information
Controlling Class is Class J-RR.
The Controlling Class Representative is KKR Real Estate Credit Opportunity Partners Aggregator I L.P.
There Are No Disclosable Special Servicer Fees.
Reports Available at sf.citidirect.com v. 21.09.28 Page 8 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
STRATIFICATION DETAIL
May 14, 2026
Anticipated Remaining Term
Anticipated Remaining Asset Ending Scheduled % of Wtd Avg
Term Range Count Balance Agg.Bal. WAC WAM DSCR
60 Months or Less 45 748,383,265.11 96.59 4.3856 15 1.767679
61 to 90 Months 3 26,437,812.24 3.41 5.0332 65 1.272728
91 Months or Greater 0 0.00 0.00 0.0000 0 0.000000
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Debt Service Coverage Ratio
Debt Service Coverage Asset Ending Scheduled % of Wtd Avg
Ratio Range Count Balance Agg.Bal. WAC WAM DSCR
1.250 or Less 11 198,228,490.39 25.58 4.6974 18 0.857711
1.251 to 1.500 5 59,454,906.87 7.67 4.4294 16 1.361436
1.501 to 1.750 8 93,650,698.10 12.09 4.6013 15 1.628075
1.751 to 2.000 10 149,845,948.09 19.34 4.5907 18 1.841810
2.001 to 2.250 2 74,724,843.34 9.64 4.1001 15 2.050042
2.251 to 2.500 4 78,044,897.66 10.07 3.9716 17 2.403527
2.501 to 2.750 5 107,115,865.70 13.82 3.9912 14 2.670134
2.751 to 3.000 1 3,895,701.03 0.50 3.8900 16 2.990000
3.001 to 3.250 1 2,759,726.17 0.36 4.9850 15 3.240000
3.251 to 3.500 0 0.00 0.00 0.0000 0 0.000000
3.501 to 3.750 0 0.00 0.00 0.0000 0 0.000000
3.751 to 4.000 0 0.00 0.00 0.0000 0 0.000000
4.001 or Greater 1 7,100,000.00 0.92 4.1000 16 4.190000
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Reports Available at sf.citidirect.com v. 21.09.28 Page 9 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
STRATIFICATION DETAIL
May 14, 2026
Ending Schedule Balance
Ending Schedule Balance Asset Ending Scheduled % of Wtd Avg
Range Count Balance Agg.Bal. WAC WAM DSCR
1 to 5,000,000 11 31,978,787.16 4.13 4.7998 17 1.952018
10,000,001 to 15,000,000 3 39,093,019.39 5.05 4.5836 15 1.497580
15,000,001 to 20,000,000 4 70,374,595.35 9.08 4.6670 25 1.486558
20,000,001 to 25,000,000 8 187,837,507.09 24.24 4.2565 15 1.809224
25,000,001 to 30,000,000 2 56,259,228.62 7.26 4.5674 16 1.158376
30,000,001 to 35,000,000 2 68,741,883.60 8.87 4.6232 13 1.081980
35,000,001 to 40,000,000 2 74,724,843.34 9.64 4.1001 15 2.050042
40,000,001 to 45,000,000 1 41,000,000.00 5.29 3.9950 16 2.730000
45,000,001 to 50,000,000 1 50,000,000.00 6.45 3.6000 18 2.450000
5,000,001 to 10,000,000 13 94,811,212.80 12.24 4.8507 20 1.632291
50,000,001 to 55,000,000 0 0.00 0.00 0.0000 0 0.000000
55,000,001 to 60,000,000 1 60,000,000.00 7.74 4.4953 16 1.820000
60,000,001 to 65,000,000 0 0.00 0.00 0.0000 0 0.000000
65,000,001 to 70,000,000 0 0.00 0.00 0.0000 0 0.000000
70,000,001 to 75,000,000 0 0.00 0.00 0.0000 0 0.000000
75,000,001 to 80,000,000 0 0.00 0.00 0.0000 0 0.000000
80,000,001 to 85,000,000 0 0.00 0.00 0.0000 0 0.000000
85,000,000+ 0 0.00 0.00 0.0000 0 0.000000
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Reports Available at sf.citidirect.com v. 21.09.28 Page 10 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
STRATIFICATION DETAIL
May 14, 2026
Loan Rate
Asset Ending Scheduled % of Wtd Avg
Loan Rate Range Count Balance Agg.Bal. WAC WAM DSCR
4.00 or Less 5 144,860,535.65 18.70 3.7254 16 2.399066
4.01 to 4.25 4 116,824,843.34 15.08 4.1150 15 1.841544
4.26 to 4.50 9 204,159,735.06 26.35 4.4205 15 1.674864
4.51 to 4.75 13 188,037,088.46 24.27 4.6381 15 1.618669
4.76 to 5.00 5 15,358,055.80 1.98 4.9316 15 1.820075
5.01 to 5.25 10 93,728,306.61 12.10 5.1131 27 1.151215
5.26 to 5.50 1 2,054,897.66 0.27 5.2850 15 2.460000
5.51 to 5.75 1 9,797,614.77 1.26 5.5470 15 0.680000
5.76 to 6.00 0 0.00 0.00 0.0000 0 0.000000
6.01 to 6.25 0 0.00 0.00 0.0000 0 0.000000
6.26 to 6.50 0 0.00 0.00 0.0000 0 0.000000
6.51 to 6.75 0 0.00 0.00 0.0000 0 0.000000
6.76 to 7.00 0 0.00 0.00 0.0000 0 0.000000
7.01 or Greater 0 0.00 0.00 0.0000 0 0.000000
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Property Type
Asset Ending Scheduled % of Wtd Avg
Property Type Range Count Balance Agg.Bal. WAC WAM DSCR
Industrial 1 7,100,000.00 0.92 4.1000 16 4.190000
Lodging 7 122,372,523.92 15.79 4.7100 13 1.446159
Mixed Use 8 157,637,110.81 20.34 4.2997 14 2.038421
Multifamily 3 44,529,897.66 5.75 4.7455 15 1.584841
Office 9 220,183,183.79 28.42 4.1923 18 1.566869
Other 1 6,000,000.00 0.77 5.2500 13 1.700000
Retail 14 182,690,058.24 23.58 4.3846 20 1.809510
Self Storage 1 5,094,855.50 0.66 4.9150 16 1.220000
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Reports Available at sf.citidirect.com v. 21.09.28 Page 11 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
STRATIFICATION DETAIL
May 14, 2026
Remaining Amortization Term
Remaining Amortization Asset Ending Scheduled % of Wtd Avg
Term Range Count Balance Agg.Bal. WAC WAM DSCR
240 Months or Less 23 427,581,613.72 55.18 4.3164 17 1.894161
241 to 270 Months 25 347,239,463.63 44.82 4.5202 17 1.574248
271 to 300 Months 0 0.00 0.00 0.0000 0 0.000000
301 Months or Greater 0 0.00 0.00 0.0000 0 0.000000
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Seasoning
Asset Ending Scheduled % of Wtd Avg
Seasoning Range Count Balance Agg.Bal. WAC WAM DSCR
12 Months or Less 0 0.00 0.00 0.0000 0 0.000000
13 to 24 Months 0 0.00 0.00 0.0000 0 0.000000
25 to 36 Months 0 0.00 0.00 0.0000 0 0.000000
37 to 48 Months 1 980,000.00 0.13 5.0600 77 1.280000
49 Months or Greater 47 773,841,077.35 99.87 4.4069 17 1.751387
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Reports Available at sf.citidirect.com v. 21.09.28 Page 12 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
STRATIFICATION DETAIL
May 14, 2026
State
Asset Ending Scheduled % of Wtd Avg
State Range Count Balance Agg.Bal. WAC WAM DSCR
California 9 152,353,114.05 19.66 4.6441 14 1.621530
Colorado 3 21,866,725.98 2.82 4.6706 15 2.444077
Connecticut 1 2,054,897.66 0.27 5.2850 15 2.460000
Delaware 0 0.00 0.00 0.0000 0 0.000000
District of Columbia 1 50,000,000.00 6.45 3.6000 18 2.450000
Florida 2 30,935,000.00 3.99 4.6507 31 1.774962
Georgia 6 28,353,050.31 3.66 4.8225 15 1.108723
Illinois 0 0.00 0.00 0.0000 0 0.000000
Iowa 1 980,000.00 0.13 5.0600 77 1.280000
Kentucky 1 37,323,321.12 4.82 4.0400 14 2.010000
Louisiana 1 24,964,834.62 3.22 3.9840 15 1.370000
Maryland 0 0.00 0.00 0.0000 0 0.000000
Massachusetts 3 92,475,000.00 11.94 4.5397 16 1.908816
Michigan 1 3,247,366.31 0.42 4.9800 15 1.600000
Missouri 1 6,000,000.00 0.77 5.2500 13 1.700000
Nevada 1 23,347,846.31 3.01 4.2591 14 2.550000
New York 2 60,000,000.00 7.74 3.7750 14 1.657500
North Carolina 1 8,476,875.01 1.09 4.5340 15 1.870000
Ohio 1 2,692,184.89 0.35 5.1500 16 1.410000
Pennsylvania 1 26,408,639.86 3.41 4.7000 17 1.360000
South Carolina 1 5,687,213.24 0.73 4.6400 16 1.760000
Texas 0 0.00 0.00 0.0000 0 0.000000
Utah 1 5,094,855.50 0.66 4.9150 16 1.220000
Various 6 117,327,442.02 15.14 4.5901 22 1.111049
Virginia 1 24,000,000.00 3.10 4.5110 15 1.980000
Washington 1 6,337,009.44 0.82 5.0250 17 1.190000
West Virginia 1 3,895,701.03 0.50 3.8900 16 2.990000
Wisconsin 1 41,000,000.00 5.29 3.9950 16 2.730000
Total 48 774,821,077.35 100.00 4.4077 17 1.750791
Reports Available at sf.citidirect.com v. 21.09.28 Page 13 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
MORTGAGE LOAN DETAIL
May 14, 2026
Prop Paid Beginning Ending Payment Workout Mod
Type Through Gross Interest Principal Scheduled Scheduled Maturity Status Strategy Code
Loan ID OMCR (1) City State Date Coupon Payment Payment Balance Balance Date (2 ) (3 ) (4 )
30313280 1 MU Boston MA 05/06/2026 4.49530 % 224,765.00 - 60,000,000.00 60,000,000.00 09/06/2027 0 0 0
30313291 10 RT Baton Rouge LA 05/01/2026 3.98400 % 83,050.47 50,367.66 25,015,202.28 24,964,834.62 08/01/2027 0 0 0
30313292 11 RT Langhorne PA 05/06/2026 4.70000 % 103,596.86 41,621.73 26,450,261.59 26,408,639.86 10/06/2027 0 0 0
30313293 12 RT Various XX 05/06/2026 4.40000 % 79,930.23 68,616.13 21,799,152.59 21,730,536.46 09/06/2027 0 0 0
30313294 13 OF La Jolla CA 05/03/2026 4.55000 % 86,587.02 41,847.43 22,836,137.13 22,794,289.70 10/06/2027 0 0 0
30313295 14 MU Windsor Mill NV 05/06/2026 4.25906 % 83,008.92 40,108.69 23,387,955.00 23,347,846.31 07/06/2027 0 0 0
30313296 15 MU New York NY 05/06/2026 3.25000 % 67,708.33 - 25,000,000.00 25,000,000.00 06/06/2027 0 0 0
30313340 16 MF Various XX 05/06/2026 4.71200 % 98,166.67 - 25,000,000.00 25,000,000.00 09/06/2027 0 0 0
30313300 17 LO Arlington VA 05/06/2026 4.51100 % 90,220.00 - 24,000,000.00 24,000,000.00 08/06/2027 0 0 0
30313281 1 A MU Boston MA 05/06/2026 4.49530 % 56,191.25 - 15,000,000.00 15,000,000.00 09/06/2027 0 0 0
30313231 2 OF Washington DC 05/01/2026 3.60000 % 150,000.00 - 50,000,000.00 50,000,000.00 11/01/2027 0 0 0
30313251 20 OF Various XX 05/06/2026 4.26400 % 63,672.37 42,270.99 17,919,054.10 17,876,783.11 08/06/2027 0 0 0
30313304 21 RT Miami FL 05/06/2026 4.47600 % 78,330.00 - 21,000,000.00 21,000,000.00 08/06/2027 0 0 0
30313305 22 MU Los Angeles CA 05/06/2026 4.68300 % 76,098.75 - 19,500,000.00 19,500,000.00 07/06/2027 0 0 0
30313306 23 MF Methuen MA 05/06/2026 4.73000 % 68,880.63 - 17,475,000.00 17,475,000.00 09/06/2027 0 0 0
30313248 24 RT Various XX 05/08/2026 5.04000 % 65,287.39 21,804.54 15,544,616.78 15,522,812.24 09/08/2031 0 0 0
30313310 27 MH Parachute CO 05/06/2026 4.69500 % 48,085.79 22,278.50 12,290,297.89 12,268,019.39 08/06/2027 0 0 0
30313311 28 LO Los Angeles CA 05/06/2026 5.54700 % 45,428.80 30,141.14 9,827,755.91 9,797,614.77 08/06/2027 0 0 8
30313312 29 OF San Jose CA 05/06/2026 4.58000 % 45,132.08 - 11,825,000.00 11,825,000.00 10/06/2027 0 8 0
30313313 30 OF Jacksonville FL 05/06/2026 5.02000 % 41,561.42 - 9,935,000.00 9,935,000.00 10/06/2031 0 0 0
30313315 32 RT Greensboro NC 05/06/2026 4.53400 % 32,092.11 16,845.55 8,493,720.56 8,476,875.01 08/06/2027 0 0 0
30313316 33 LO Brunswick GA 06/06/2025 5.24000 % 35,801.50 16,874.82 8,198,817.79 8,181,942.97 09/06/2027 3 13 8
30298889 34 RT Peach Tree GA 05/06/2026 4.28000 % 30,370.17 - 8,515,000.00 8,515,000.00 09/06/2027 0 0 0
30313317 35 MH Various XX 05/06/2026 5.15000 % 31,586.28 13,187.87 7,359,909.32 7,346,721.45 10/06/2027 0 0 0
30313318 36 MH Fort Collins CO 05/06/2026 4.50000 % 25,704.64 15,590.21 6,854,570.63 6,838,980.42 09/06/2027 0 0 0
30313319 37 LO Sequim WA 03/06/2026 5.02500 % 26,621.08 20,262.72 6,357,272.16 6,337,009.44 10/06/2027 1 8 8
30313321 39 IN San Diego CA 05/06/2026 4.10000 % 24,258.33 - 7,100,000.00 7,100,000.00 09/06/2027 0 0 0
30313283 4 RT Pleasant Prairie WI 05/01/2026 3.99500 % 136,495.83 - 41,000,000.00 41,000,000.00 09/01/2027 0 0 0
30313322 40 MU West Columbia SC 05/06/2026 4.64000 % 22,039.76 12,725.28 5,699,938.52 5,687,213.24 09/06/2027 0 0 0
30313323 41 N/A St. Louis MO 05/06/2026 5.25000 % 26,250.00 - 6,000,000.00 6,000,000.00 06/06/2027 0 0 0
30313324 42 SS Provo UT 05/06/2026 4.91500 % 20,912.67 10,985.66 5,105,841.16 5,094,855.50 09/06/2027 0 0 0
30313325 43 OF Venice CA 04/06/2026 4.62450 % 21,195.63 - 5,500,000.00 5,500,000.00 08/06/2027 B 0 0
Reports Available at sf.citidirect.com v. 21.09.28 Page 14 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
MORTGAGE LOAN DETAIL
May 14, 2026
Prop Paid Beginning Ending Payment Workout Mod
Type Through Gross Interest Principal Scheduled Scheduled Maturity Status Strategy Code
Loan ID OMCR (1) City State Date Coupon Payment Payment Balance Balance Date (2 ) (3 ) (4 )
30313326 44 RT Parkersburg WV 05/06/2026 3.89000 % 12,676.27 14,717.29 3,910,418.32 3,895,701.03 09/06/2027 0 0 0
30313327 45 MU Cartersville GA 05/06/2026 4.75000 % 17,492.44 9,894.05 4,419,141.55 4,409,247.50 06/06/2027 0 0 0
30313328 46 MU Temecula CA 05/06/2026 4.54100 % 17,787.37 7,668.85 4,700,472.61 4,692,803.76 08/06/2027 0 0 0
30313330 48 LO Richmond Hill GA 05/06/2026 5.25000 % 13,125.43 9,346.36 3,000,098.38 2,990,752.02 10/06/2027 0 0 0
30313331 49 RT Grand Rapids MI 05/06/2026 4.98000 % 13,501.67 6,047.73 3,253,414.04 3,247,366.31 08/06/2027 0 0 0
30313284 5 OF San Jose CA 05/06/2026 4.16000 % 129,881.54 64,305.93 37,465,828.15 37,401,522.22 10/06/2027 0 0 0
30313333 51 MH Arvada CO 05/06/2026 4.98500 % 11,488.99 5,927.93 2,765,654.10 2,759,726.17 08/06/2027 0 0 0
30313335 53 RT Willoughby OH 05/06/2026 5.15000 % 11,578.09 5,621.74 2,697,806.63 2,692,184.89 09/06/2027 0 0 0
30313336 54 RT Duluth GA 05/06/2026 4.95000 % 9,883.69 3,994.33 2,396,045.69 2,392,051.36 10/06/2027 0 0 0
30313337 55 MF Hartford CT 05/06/2026 5.28500 % 9,068.77 4,236.19 2,059,133.85 2,054,897.66 08/06/2027 0 0 0
30313338 56 RT Dacula GA 05/06/2026 4.79000 % 7,454.86 3,550.42 1,867,606.88 1,864,056.46 09/06/2027 0 0 0
30313339 57 RT Milford IA 05/06/2026 5.06000 % 4,132.33 - 980,000.00 980,000.00 10/06/2032 0 0 0
30313285 6 LO Los Angeles CA 05/06/2026 5.11400 % 144,109.53 73,414.61 33,815,298.21 33,741,883.60 03/06/2027 0 8 8
30313288 7 LO Louisville KY 05/06/2026 4.04000 % 125,853.92 59,031.80 37,382,352.92 37,323,321.12 07/06/2027 0 0 0
30313289 8 OF Various XX 05/06/2026 4.45000 % 110,949.95 68,499.86 29,919,088.62 29,850,588.76 09/06/2027 0 0 0
30313290 9 OF New York NY 05/06/2026 4.15000 % 121,041.67 - 35,000,000.00 35,000,000.00 09/06/2027 0 0 8
Total Count = 48 2,849,056.50 801,786.01 775,622,863.36 774,821,077.35
Reports Available at sf.citidirect.com v. 21.09.28 Page 15 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
NOI DETAIL
May 14, 2026
Property Ending Preceding Most Most Recent Most Recent
Type Scheduled Fiscal Recent Financial As of Financial Asof
Loan ID OMCR (1) City State Balance Year NOI NOI Start Date End Date
30313280 1 MU Boston MA 60,000,000.00 5,774,779.89 6,728,001.69 Not Available Not Available
30313291 10 RT Baton Rouge LA 24,964,834.62 27,021,825.04 27,021,825.04 Not Available Not Available
30313292 11 RT Langhorne PA 26,408,639.86 2,378,522.07 2,512,941.33 Not Available Not Available
30313293 12 RT Various XX 21,730,536.46 2,994,033.31 2,911,660.45 Not Available Not Available
30313294 13 OF La Jolla CA 22,794,289.70 2,483,173.82 2,483,173.82 Not Available Not Available
30313295 14 MU Windsor Mill NV 23,347,846.31 13,059,526.13 12,995,821.38 Not Available Not Available
30313296 15 MU New York NY 25,000,000.00 2,236,828.92 2,236,828.92 Not Available Not Available
30313340 16 MF Various XX 25,000,000.00 3,688,121.55 3,688,121.55 Not Available Not Available
30313300 17 LO Arlington VA 24,000,000.00 5,759,627.41 1,242,235.53 Not Available Not Available
30313281 1 A MU Boston MA 15,000,000.00 5,774,779.89 6,728,001.69 Not Available Not Available
30313231 2 OF Washington DC 50,000,000.00 25,172,837.32 18,740,873.98 Not Available Not Available
30313251 20 OF Various XX 17,876,783.11 3,571,127.64 3,571,127.64 Not Available Not Available
30313304 21 RT Miami FL 21,000,000.00 1,658,200.47 1,658,200.47 Not Available Not Available
30313305 22 MU Los Angeles CA 19,500,000.00 1,403,963.00 2,242,863.32 Not Available Not Available
30313306 23 MF Methuen MA 17,475,000.00 1,993,873.32 1,953,527.00 Not Available Not Available
30313248 24 RT Various XX 15,522,812.24 2,723,483.31 693,143.95 Not Available Not Available
30313310 27 MH Parachute CO 12,268,019.39 2,084,178.74 2,342,337.06 Not Available Not Available
30313311 28 LO Los Angeles CA 9,797,614.77 825,086.00 825,086.00 Not Available Not Available
30313312 29 OF San Jose CA 11,825,000.00 (220,037.91 ) (105,750.89 ) Not Available Not Available
30313313 30 OF Jacksonville FL 9,935,000.00 2,913,705.40 2,913,705.40 Not Available Not Available
30313315 32 RT Greensboro NC 8,476,875.01 1,003,282.95 1,221,317.80 Not Available Not Available
30313316 33 LO Brunswick GA 8,181,942.97 (517,331.72 ) (517,331.72 ) Not Available Not Available
30298889 34 RT Peach Tree GA 8,515,000.00 872,621.67 872,621.67 Not Available Not Available
30313317 35 MH Various XX 7,346,721.45 829,413.99 933,262.01 Not Available Not Available
30313318 36 MH Fort Collins CO 6,838,980.42 650,410.14 807,555.45 Not Available Not Available
30313319 37 LO Sequim WA 6,337,009.44 818,336.27 818,336.27 Not Available Not Available
30313321 39 IN San Diego CA 7,100,000.00 1,374,878.17 1,374,878.17 Not Available Not Available
30313283 4 RT Pleasant Prairie WI 41,000,000.00 16,690,137.20 16,690,137.20 Not Available Not Available
30313322 40 MU West Columbia SC 5,687,213.24 829,282.05 829,282.05 Not Available Not Available
30313323 41 N/A St. Louis MO 6,000,000.00 553,000.00 553,000.00 Not Available Not Available
30313324 42 SS Provo UT 5,094,855.50 524,517.96 475,802.42 Not Available Not Available
30313325 43 OF Venice CA 5,500,000.00 659,534.58 659,534.58 Not Available Not Available
Reports Available at sf.citidirect.com v. 21.09.28 Page 16 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
NOI DETAIL
May 14, 2026
Property Ending Preceding Most Most Recent Most Recent
Type Scheduled Fiscal Recent Financial As of Financial Asof
Loan ID OMCR (1) City State Balance Year NOI NOI Start Date End Date
30313326 44 RT Parkersburg WV 3,895,701.03 1,089,403.37 1,089,403.37 Not Available Not Available
30313327 45 MU Cartersville GA 4,409,247.50 632,928.96 505,873.10 Not Available Not Available
30313328 46 MU Temecula CA 4,692,803.76 569,330.17 569,330.17 Not Available Not Available
30313330 48 LO Richmond Hill GA 2,990,752.02 565,895.21 565,895.21 Not Available Not Available
30313331 49 RT Grand Rapids MI 3,247,366.31 399,530.64 535,354.39 Not Available Not Available
30313284 5 OF San Jose CA 37,401,522.22 4,898,427.23 4,898,427.23 Not Available Not Available
30313333 51 MH Arvada CO 2,759,726.17 627,808.03 680,451.13 Not Available Not Available
30313335 53 RT Willoughby OH 2,692,184.89 304,441.47 304,441.47 Not Available Not Available
30313336 54 RT Duluth GA 2,392,051.36 330,190.68 330,190.68 Not Available Not Available
30313337 55 MF Hartford CT 2,054,897.66 429,256.84 420,339.14 Not Available Not Available
30313338 56 RT Dacula GA 1,864,056.46 245,197.15 245,197.15 Not Available Not Available
30313339 57 RT Milford IA 980,000.00 65,521.88 65,521.88 Not Available Not Available
30313285 6 LO Los Angeles CA 33,741,883.60 10,706,331.20 4,069,056.33 01/01/2026 03/31/2026
30313288 7 LO Louisville KY 37,323,321.12 5,598,600.27 5,598,600.27 Not Available Not Available
30313289 8 OF Various XX 29,850,588.76 15,651,851.20 15,651,851.20 Not Available Not Available
30313290 9 OF New York NY 35,000,000.00 3,180,959.60 3,180,959.60 Not Available Not Available
Total Count = 48 774,821,077.35 182,881,392.48 166,813,013.55
Reports Available at sf.citidirect.com v. 21.09.28 Page 17 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
DELINQUENCY LOAN DETAIL
May 14, 2026
Actual Paid Current P&I Total P&I Cumulative Other Expense Payment Workout Most Recent
Principal Through Advances Advances Accrued Unpaid Advances Status Strategy Special Serv Foreclosure Bankruptcy REO
Loan ID OMCR Balance Date (Net of ASER) Outstanding Interest Advances Outstanding (2 ) (3 ) Transfer Date Date Date Date
30313316 33 8,358,834.95 06/06/2025 52,642.16 551,342.04 19,890.25 36,534.04 3 13 09/10/2025
30313319 37 6,376,564.04 03/06/2026 46,857.31 835,210.67 659,962.33 1,084,540.00 1 8 05/27/2020 09/18/2020
30313325 43 5,500,000.00 04/06/2026 21,081.05 21,172.71 - - B 0
Total Count = 3 20,235,398.99 120,580.52 1,407,725.42 679,852.58 1,121,074.04
Reports Available at sf.citidirect.com v. 21.09.28 Page 18 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
COLLATERAL PERFORMANCE - DELINQUENCY AND LOAN STATUS DETAIL
–
May 14, 2026
Delinquent
(Does not include loans in Bankruptcy, Foreclosure, or REO)
30 Day 60 Day 90 Day 120 + Day Bankruptcy Foreclosure REO
Distribution
Date Count Balance Count Balance Count Balance Count Balance Count Balance Count Balance Count Balance
1 6,337,009 0 0 0 0 1 8,181,943 0 0 0 0 0 0
05/14/2026
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 6,357,272 0 0 0 0 1 8,198,818 0 0 0 0 0 0
04/14/2026
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 6,376,564 0 0 0 0 1 8,214,429 0 0 0 0 0 0
03/13/2026
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 6,398,441 0 0 0 0 1 8,233,549 0 0 0 0 0 0
02/13/2026
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 6,417,555 0 0 0 0 1 8,249,004 0 0 0 0 0 0
01/14/2026
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 6,436,587 0 0 0 0 1 8,264,389 0 0 0 0 0 0
12/12/2025
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 6,456,435 0 0 0 0 1 8,280,906 0 0 0 0 0 0
11/17/2025
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 1 8,296,148 0 0 0 0 0 0 0 0
10/15/2025
0.0 % 0.0 % 0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 1 8,312,526 0 0 0 0 0 0 0 0 0 0
09/12/2025
0.0 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
2 43,327,626 1 10,059,386 0 0 0 0 0 0 0 0 0 0
08/14/2025
4.2 % 0.0 % 2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 10,086,775 0 0 0 0 0 0 0 0 0 0 0 0
07/14/2025
2.1 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
2 18,474,421 0 0 0 0 0 0 0 0 0 0 0 0
06/13/2025
4.2 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
Reports Available at sf.citidirect.com v. 21.09.28 Page 19 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
APPRAISAL REDUCTION DETAIL
May 14, 2026
Beginning Ending Appraisal Appraisal Most Recent Cumulative
Loan ID OMCR Property Name Scheduled Balance Scheduled Balance Reduction Amount Reduction Date ASER Amount ASER Amount
30313316 33 Courtyard Brunswick 8,198,817.79 8,181,942.97 - 02/09/2026 - 27,713.36
30313319 37 Holiday Inn Express & Suites 6,357,272.16 6,337,009.44 - 05/08/2023 - 8,137.04
Total Count = 2 14,556,089.95 14,518,952.41 - - 35,850.40
Reports Available at sf.citidirect.com v. 21.09.28 Page 20 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL APPRAISAL REDUCTION DETAIL
May 14, 2026
Distribution Beginning Ending Appraisal Appraisal Most Recent Cumulative
Date Loan ID OMCR Property Name Scheduled Balance Scheduled Balance Reduction Amount Reduction Date ASER Amount ASER Amount
5/14/2026 30313316 33 Courtyard Brunswick 8,198,817.79 8,181,942.97 - 02/09/2026 - 27,713.36
5/14/2026 30313319 37 Holiday Inn Express & Suites 6,357,272.16 6,337,009.44 - 05/08/2023 - 8,137.04
4/14/2026 30313316 33 Courtyard Brunswick 8,214,428.78 8,198,817.79 - 02/09/2026 - 27,713.36
4/14/2026 30313319 37 Holiday Inn Express & Suites 6,376,564.04 6,357,272.16 - 05/08/2023 - 8,137.04
3/13/2026 30313316 33 Courtyard Brunswick 8,233,548.81 8,214,428.78 - 02/09/2026 - 27,713.36
3/13/2026 30313319 37 Holiday Inn Express & Suites 6,398,440.60 6,376,564.04 - 05/08/2023 - 8,137.04
2/13/2026 30313316 33 Courtyard Brunswick 8,249,003.79 8,233,548.81 - 02/09/2026 - 27,713.36
2/13/2026 30313319 37 Holiday Inn Express & Suites 6,417,555.10 6,398,440.60 - 05/08/2023 - 8,137.04
1/14/2026 30313316 33 Courtyard Brunswick 8,264,389.35 8,249,003.79 2,070,226.43 12/08/2025 9,332.41 27,713.36
1/14/2026 30313319 37 Holiday Inn Express & Suites 6,436,587.25 6,417,555.10 - 05/08/2023 - 8,137.04
12/12/2025 30313316 33 Courtyard Brunswick 8,280,905.72 8,264,389.35 2,070,226.43 12/08/2025 9,031.36 18,380.95
12/12/2025 30313319 37 Holiday Inn Express & Suites 6,456,434.73 6,436,587.25 - 05/08/2023 - 8,137.04
11/17/2025 30313316 33 Courtyard Brunswick 8,296,147.98 8,280,905.72 2,074,037.00 11/10/2025 9,349.59 9,349.59
11/17/2025 30313319 37 Holiday Inn Express & Suites 6,475,299.37 6,456,434.73 - 05/08/2023 - 8,137.04
10/15/2025 30313319 37 Holiday Inn Express & Suites 6,494,985.42 6,475,299.37 - 05/08/2023 - 8,137.04
9/12/2025 30313319 37 Holiday Inn Express & Suites 6,513,683.97 6,494,985.42 - 05/08/2023 - 8,137.04
8/14/2025 30313319 37 Holiday Inn Express & Suites 6,532,301.96 6,513,683.97 - 05/08/2023 - 8,137.04
7/14/2025 30313319 37 Holiday Inn Express & Suites 6,551,750.31 6,532,301.96 - 05/08/2023 - 8,137.04
6/13/2025 30313319 37 Holiday Inn Express & Suites 6,570,204.29 6,551,750.31 - 05/08/2023 - 8,137.04
5/14/2025 30313319 37 Holiday Inn Express & Suites 6,589,494.58 6,570,204.29 - 05/08/2023 - 8,137.04
4/14/2025 30313319 37 Holiday Inn Express & Suites 6,607,785.94 6,589,494.58 - 05/08/2023 - 8,137.04
3/14/2025 30313319 37 Holiday Inn Express & Suites 6,628,762.33 6,607,785.94 - 05/08/2023 - 8,137.04
2/14/2025 30313319 37 Holiday Inn Express & Suites 6,646,884.51 6,628,762.33 - 05/08/2023 - 8,137.04
1/15/2025 30313319 37 Holiday Inn Express & Suites 6,664,928.61 6,646,884.51 - 05/08/2023 - 8,137.04
12/13/2024 30313319 37 Holiday Inn Express & Suites 6,683,823.90 6,664,928.61 - 05/08/2023 - 8,137.04
11/15/2024 30313319 37 Holiday Inn Express & Suites 6,701,708.85 6,683,823.90 - 05/08/2023 - 8,137.04
10/15/2024 30313319 37 Holiday Inn Express & Suites 6,720,450.76 6,701,708.85 - 05/08/2023 - 8,137.04
9/13/2024 30313319 37 Holiday Inn Express & Suites 6,738,177.90 6,720,450.76 - 05/08/2023 - 8,137.04
8/14/2024 30313319 37 Holiday Inn Express & Suites 6,755,828.67 6,738,177.90 - 05/08/2023 - 8,137.04
7/12/2024 30313319 37 Holiday Inn Express & Suites 6,774,344.90 6,755,828.67 - 05/08/2023 - 8,137.04
6/14/2024 30313319 37 Holiday Inn Express & Suites 6,791,839.84 6,774,344.90 - 05/08/2023 - 8,137.04
5/14/2024 30313319 37 Holiday Inn Express & Suites 6,810,205.90 6,791,839.84 - 05/08/2023 - 8,137.04
4/12/2024 30313319 37 Holiday Inn Express & Suites 6,827,546.34 6,810,205.90 - 05/08/2023 - 8,137.04
Reports Available at sf.citidirect.com v. 21.09.28 Page 21 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL APPRAISAL REDUCTION DETAIL
May 14, 2026
Distribution Beginning Ending Appraisal Appraisal Most Recent Cumulative
Date Loan ID OMCR Property Name Scheduled Balance Scheduled Balance Reduction Amount Reduction Date ASER Amount ASER Amount
3/14/2024 30313319 37 Holiday Inn Express & Suites 6,846,715.21 6,827,546.34 - 05/08/2023 - 8,137.04
2/14/2024 30313319 37 Holiday Inn Express & Suites 6,863,898.35 6,846,715.21 - 05/08/2023 - 8,137.04
1/12/2024 30313319 37 Holiday Inn Express & Suites 6,881,007.46 6,863,898.35 - 05/08/2023 - 8,137.04
12/14/2023 30313319 37 Holiday Inn Express & Suites 6,899,001.69 6,881,007.46 - 05/08/2023 - 8,137.04
11/14/2023 30313319 37 Holiday Inn Express & Suites 6,915,959.56 6,899,001.69 - 05/08/2023 - 8,137.04
10/16/2023 30313319 37 Holiday Inn Express & Suites 6,933,808.04 6,915,959.56 - 05/08/2023 - 8,137.04
9/14/2023 30313319 37 Holiday Inn Express & Suites 6,950,615.95 6,933,808.04 - 05/08/2023 - 8,137.04
8/14/2023 30313319 37 Holiday Inn Express & Suites 6,967,351.44 6,950,615.95 - 05/08/2023 (14,933.88 ) 8,137.04
7/14/2023 30313319 37 Holiday Inn Express & Suites 6,984,985.61 6,967,351.44 - 05/08/2023 - 23,070.92
6/14/2023 30313319 37 Holiday Inn Express & Suites 7,001,573.02 6,984,985.61 - 05/08/2023 - 23,070.92
5/12/2023 30313319 37 Holiday Inn Express & Suites 7,019,064.49 7,001,573.02 - 05/08/2023 - 23,070.92
4/14/2023 30313319 37 Holiday Inn Express & Suites 7,035,505.07 7,019,064.49 - 04/08/2022 - 23,070.92
3/14/2023 30313319 37 Holiday Inn Express & Suites 7,054,816.30 7,035,505.07 - 04/08/2022 - 23,070.92
2/14/2023 30313319 37 Holiday Inn Express & Suites 7,071,102.85 7,054,816.30 - 04/08/2022 - 23,070.92
1/13/2023 30313319 37 Holiday Inn Express & Suites 7,087,319.23 7,071,102.85 - 04/08/2022 - 23,070.92
12/14/2022 30313319 37 Holiday Inn Express & Suites 7,104,453.13 7,087,319.23 - 04/08/2022 - 23,070.92
11/15/2022 30313319 37 Holiday Inn Express & Suites 7,120,525.82 7,104,453.13 - 04/08/2022 - 23,070.92
10/17/2022 30313319 37 Holiday Inn Express & Suites 7,137,521.25 7,120,525.82 - 04/08/2022 - 23,070.92
9/14/2022 30313319 37 Holiday Inn Express & Suites 7,153,451.47 7,137,521.25 - 04/08/2022 - 23,070.92
8/12/2022 30313319 37 Holiday Inn Express & Suites 7,169,313.05 7,153,451.47 - 04/08/2022 - 23,070.92
7/14/2022 30313319 37 Holiday Inn Express & Suites 7,186,105.04 7,169,313.05 - 04/08/2022 - 23,070.92
6/14/2022 30313319 37 Holiday Inn Express & Suites 7,201,825.94 7,186,105.04 - 04/08/2022 - 23,070.92
5/13/2022 30313319 37 Holiday Inn Express & Suites 7,218,482.35 7,201,825.94 - 04/08/2022 - 23,070.92
4/14/2022 30313319 37 Holiday Inn Express & Suites 7,234,063.75 7,218,482.35 - 04/08/2022 - 23,070.92
3/14/2022 30313319 37 Holiday Inn Express & Suites 7,252,601.96 7,234,063.75 1,813,150.49 03/08/2022 7,079.35 23,070.92
2/14/2022 30313319 37 Holiday Inn Express & Suites 7,268,036.36 7,252,601.96 1,817,009.09 02/08/2022 7,854.53 15,991.57
1/14/2022 30313319 37 Holiday Inn Express & Suites 7,283,404.26 7,268,036.36 - 01/10/2022 - 8,137.04
12/14/2021 30313282 3 Godfrey Hotel 44,994,086.53 44,994,086.53 - 06/08/2021 - -
12/14/2021 30313319 37 Holiday Inn Express & Suites 7,299,720.48 7,283,404.26 - 12/08/2021 - 8,137.04
11/15/2021 30313319 37 Holiday Inn Express & Suites 7,314,951.87 7,299,720.48 - 11/08/2021 - 8,137.04
10/15/2021 30313319 37 Holiday Inn Express & Suites 7,331,136.54 7,314,951.87 - 10/08/2020 - 8,137.04
9/14/2021 30313319 37 Holiday Inn Express & Suites 7,346,232.58 7,331,136.54 - 10/08/2020 - 8,137.04
8/13/2021 30313319 37 Holiday Inn Express & Suites 7,361,263.58 7,346,232.58 - 10/08/2020 - 8,137.04
Reports Available at sf.citidirect.com v. 21.09.28 Page 22 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL APPRAISAL REDUCTION DETAIL
May 14, 2026
Distribution Beginning Ending Appraisal Appraisal Most Recent Cumulative
Date Loan ID OMCR Property Name Scheduled Balance Scheduled Balance Reduction Amount Reduction Date ASER Amount ASER Amount
7/14/2021 30313319 37 Holiday Inn Express & Suites 7,377,255.12 7,361,263.58 - 10/08/2020 - 8,137.04
6/14/2021 30313282 3 Godfrey Hotel 44,926,231.75 44,864,286.34 - 06/08/2021 - -
6/14/2021 30313319 37 Holiday Inn Express & Suites 7,392,152.46 7,377,255.12 - 10/08/2020 - 8,137.04
5/14/2021 30313282 3 Godfrey Hotel 44,994,086.53 44,926,231.75 - 05/10/2021 - -
5/14/2021 30313319 37 Holiday Inn Express & Suites 7,408,015.20 7,392,152.46 - 10/08/2020 - 8,137.04
4/14/2021 30313319 37 Holiday Inn Express & Suites 7,422,780.01 7,408,015.20 - 10/08/2020 - 8,137.04
3/12/2021 30313319 37 Holiday Inn Express & Suites 7,440,583.53 7,422,780.01 - 10/08/2020 - 8,137.04
2/12/2021 30313319 37 Holiday Inn Express & Suites 7,455,208.02 7,440,583.53 - 10/08/2020 - 8,137.04
1/14/2021 30313319 37 Holiday Inn Express & Suites 7,469,769.50 7,455,208.02 - 10/08/2020 - 8,137.04
12/14/2020 30313319 37 Holiday Inn Express & Suites 7,485,308.57 7,469,769.50 - 10/08/2020 - 8,137.04
11/16/2020 30313319 37 Holiday Inn Express & Suites 7,499,740.37 7,485,308.57 - 10/08/2020 - 8,137.04
10/15/2020 30313319 37 Holiday Inn Express & Suites 7,515,154.46 7,499,740.37 - 10/08/2020 - 8,137.04
9/14/2020 30313319 37 Holiday Inn Express & Suites 7,529,457.67 7,515,154.46 1,882,364.42 09/08/2020 8,137.04 8,137.04
Reports Available at sf.citidirect.com v. 21.09.28 Page 23 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
LOAN MODIFICATION DETAIL
May 14, 2026
Modification Modification
Loan ID OMCR Property Name Date Code (4)
30313311 28 Hotel Normandie 10/06/2020 8
30313316 33 Courtyard Brunswick 09/30/2020 8
30313319 37 Holiday Inn Express & Suites 12/22/2022 8
30313285 6 Marriott Lax 02/25/2022 8
30313290 9 50 Varick 05/06/2020 8
Total Count = 5
Reports Available at sf.citidirect.com v. 21.09.28 Page 24 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
05/14/2026 30313311 28 Hotel Normandie 10/06/2020 8
05/14/2026 30313316 33 Courtyard Brunswick 09/30/2020 8
05/14/2026 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
05/14/2026 30313285 6 Marriott Lax 02/25/2022 8
05/14/2026 30313290 9 50 Varick 05/06/2020 8
04/14/2026 30313311 28 Hotel Normandie 10/06/2020 8
04/14/2026 30313316 33 Courtyard Brunswick 09/30/2020 8
04/14/2026 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
04/14/2026 30313285 6 Marriott Lax 02/25/2022 8
04/14/2026 30313290 9 50 Varick 05/06/2020 8
03/13/2026 30313311 28 Hotel Normandie 10/06/2020 8
03/13/2026 30313316 33 Courtyard Brunswick 09/30/2020 8
03/13/2026 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
03/13/2026 30313285 6 Marriott Lax 02/25/2022 8
03/13/2026 30313290 9 50 Varick 05/06/2020 8
02/13/2026 30313311 28 Hotel Normandie 10/06/2020 8
02/13/2026 30313316 33 Courtyard Brunswick 09/30/2020 8
02/13/2026 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
02/13/2026 30313285 6 Marriott Lax 02/25/2022 8
02/13/2026 30313290 9 50 Varick 05/06/2020 8
01/14/2026 30313311 28 Hotel Normandie 10/06/2020 8
01/14/2026 30313316 33 Courtyard Brunswick 09/30/2020 8
01/14/2026 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
01/14/2026 30313285 6 Marriott Lax 02/25/2022 8
01/14/2026 30313290 9 50 Varick 05/06/2020 8
12/12/2025 30313311 28 Hotel Normandie 10/06/2020 8
12/12/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
12/12/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
12/12/2025 30313285 6 Marriott Lax 02/25/2022 8
12/12/2025 30313290 9 50 Varick 05/06/2020 8
11/17/2025 30313311 28 Hotel Normandie 10/06/2020 8
11/17/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
11/17/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 25 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
11/17/2025 30313285 6 Marriott Lax 02/25/2022 8
11/17/2025 30313290 9 50 Varick 05/06/2020 8
10/15/2025 30313311 28 Hotel Normandie 10/06/2020 8
10/15/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
10/15/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
10/15/2025 30313285 6 Marriott Lax 02/25/2022 8
10/15/2025 30313290 9 50 Varick 05/06/2020 8
09/12/2025 30313311 28 Hotel Normandie 10/06/2020 8
09/12/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
09/12/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
09/12/2025 30313285 6 Marriott Lax 02/25/2022 8
09/12/2025 30313290 9 50 Varick 05/06/2020 8
08/14/2025 30313311 28 Hotel Normandie 10/06/2020 8
08/14/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
08/14/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
08/14/2025 30313285 6 Marriott Lax 02/25/2022 8
08/14/2025 30313290 9 50 Varick 05/06/2020 8
07/14/2025 30313311 28 Hotel Normandie 10/06/2020 8
07/14/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
07/14/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
07/14/2025 30313285 6 Marriott Lax 02/25/2022 8
07/14/2025 30313290 9 50 Varick 05/06/2020 8
06/13/2025 30313311 28 Hotel Normandie 10/06/2020 8
06/13/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
06/13/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
06/13/2025 30313285 6 Marriott Lax 02/25/2022 8
06/13/2025 30313290 9 50 Varick 05/06/2020 8
05/14/2025 30313311 28 Hotel Normandie 10/06/2020 8
05/14/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
05/14/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
05/14/2025 30313285 6 Marriott Lax 02/25/2022 8
05/14/2025 30313290 9 50 Varick 05/06/2020 8
04/14/2025 30313311 28 Hotel Normandie 10/06/2020 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 26 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
04/14/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
04/14/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
04/14/2025 30313285 6 Marriott Lax 02/25/2022 8
04/14/2025 30313290 9 50 Varick 05/06/2020 8
03/14/2025 30313311 28 Hotel Normandie 10/06/2020 8
03/14/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
03/14/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
03/14/2025 30313285 6 Marriott Lax 02/25/2022 8
03/14/2025 30313290 9 50 Varick 05/06/2020 8
02/14/2025 30313311 28 Hotel Normandie 10/06/2020 8
02/14/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
02/14/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
02/14/2025 30313285 6 Marriott Lax 02/25/2022 8
02/14/2025 30313290 9 50 Varick 05/06/2020 8
01/15/2025 30313311 28 Hotel Normandie 10/06/2020 8
01/15/2025 30313316 33 Courtyard Brunswick 09/30/2020 8
01/15/2025 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
01/15/2025 30313285 6 Marriott Lax 02/25/2022 8
01/15/2025 30313290 9 50 Varick 05/06/2020 8
12/13/2024 30313311 28 Hotel Normandie 10/06/2020 8
12/13/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
12/13/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
12/13/2024 30313285 6 Marriott Lax 02/25/2022 8
12/13/2024 30313290 9 50 Varick 05/06/2020 8
11/15/2024 30313311 28 Hotel Normandie 10/06/2020 8
11/15/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
11/15/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
11/15/2024 30313285 6 Marriott Lax 02/25/2022 8
11/15/2024 30313290 9 50 Varick 05/06/2020 8
10/15/2024 30313311 28 Hotel Normandie 10/06/2020 8
10/15/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
10/15/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
10/15/2024 30313285 6 Marriott Lax 02/25/2022 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 27 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
10/15/2024 30313290 9 50 Varick 05/06/2020 8
09/13/2024 30313311 28 Hotel Normandie 10/06/2020 8
09/13/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
09/13/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
09/13/2024 30313285 6 Marriott Lax 02/25/2022 8
09/13/2024 30313290 9 50 Varick 05/06/2020 8
08/14/2024 30313311 28 Hotel Normandie 10/06/2020 8
08/14/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
08/14/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
08/14/2024 30313285 6 Marriott Lax 02/25/2022 8
08/14/2024 30313290 9 50 Varick 05/06/2020 8
07/12/2024 30313311 28 Hotel Normandie 10/06/2020 8
07/12/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
07/12/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
07/12/2024 30313285 6 Marriott Lax 02/25/2022 8
07/12/2024 30313290 9 50 Varick 05/06/2020 8
06/14/2024 30313311 28 Hotel Normandie 10/06/2020 8
06/14/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
06/14/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
06/14/2024 30313285 6 Marriott Lax 02/25/2022 8
06/14/2024 30313290 9 50 Varick 05/06/2020 8
05/14/2024 30313311 28 Hotel Normandie 10/06/2020 8
05/14/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
05/14/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
05/14/2024 30313285 6 Marriott Lax 02/25/2022 8
05/14/2024 30313290 9 50 Varick 05/06/2020 8
04/12/2024 30313311 28 Hotel Normandie 10/06/2020 8
04/12/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
04/12/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
04/12/2024 30313285 6 Marriott Lax 02/25/2022 8
04/12/2024 30313290 9 50 Varick 05/06/2020 8
03/14/2024 30313311 28 Hotel Normandie 10/06/2020 8
03/14/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 28 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
03/14/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
03/14/2024 30313285 6 Marriott Lax 02/25/2022 8
03/14/2024 30313290 9 50 Varick 05/06/2020 8
02/14/2024 30313311 28 Hotel Normandie 10/06/2020 8
02/14/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
02/14/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
02/14/2024 30313285 6 Marriott Lax 02/25/2022 8
02/14/2024 30313290 9 50 Varick 05/06/2020 8
01/12/2024 30313311 28 Hotel Normandie 10/06/2020 8
01/12/2024 30313316 33 Courtyard Brunswick 09/30/2020 8
01/12/2024 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
01/12/2024 30313285 6 Marriott Lax 02/25/2022 8
01/12/2024 30313290 9 50 Varick 05/06/2020 8
12/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
12/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
12/14/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
12/14/2023 30313285 6 Marriott Lax 02/25/2022 8
12/14/2023 30313290 9 50 Varick 05/06/2020 8
11/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
11/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
11/14/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
11/14/2023 30313285 6 Marriott Lax 02/25/2022 8
11/14/2023 30313290 9 50 Varick 05/06/2020 8
10/16/2023 30313311 28 Hotel Normandie 10/06/2020 8
10/16/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
10/16/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
10/16/2023 30313285 6 Marriott Lax 02/25/2022 8
10/16/2023 30313290 9 50 Varick 05/06/2020 8
09/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
09/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
09/14/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
09/14/2023 30313285 6 Marriott Lax 02/25/2022 8
09/14/2023 30313290 9 50 Varick 05/06/2020 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 29 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
08/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
08/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
08/14/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
08/14/2023 30313285 6 Marriott Lax 02/25/2022 8
08/14/2023 30313290 9 50 Varick 05/06/2020 8
07/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
07/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
07/14/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
07/14/2023 30313285 6 Marriott Lax 02/25/2022 8
07/14/2023 30313290 9 50 Varick 05/06/2020 8
06/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
06/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
06/14/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
06/14/2023 30313285 6 Marriott Lax 02/25/2022 8
06/14/2023 30313290 9 50 Varick 05/06/2020 8
05/12/2023 30313311 28 Hotel Normandie 10/06/2020 8
05/12/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
05/12/2023 30313319 37 Holiday Inn Express & Suites 12/22/2022 8
05/12/2023 30313285 6 Marriott Lax 02/25/2022 8
05/12/2023 30313290 9 50 Varick 05/06/2020 8
04/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
04/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
04/14/2023 30313285 6 Marriott Lax 02/25/2022 8
04/14/2023 30313290 9 50 Varick 05/06/2020 8
03/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
03/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
03/14/2023 30313285 6 Marriott Lax 02/25/2022 8
03/14/2023 30313290 9 50 Varick 05/06/2020 8
02/14/2023 30313311 28 Hotel Normandie 10/06/2020 8
02/14/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
02/14/2023 30313285 6 Marriott Lax 02/25/2022 8
02/14/2023 30313290 9 50 Varick 05/06/2020 8
01/13/2023 30313311 28 Hotel Normandie 10/06/2020 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 30 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
01/13/2023 30313316 33 Courtyard Brunswick 09/30/2020 8
01/13/2023 30313285 6 Marriott Lax 02/25/2022 8
01/13/2023 30313290 9 50 Varick 05/06/2020 8
12/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
12/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
12/14/2022 30313285 6 Marriott Lax 02/25/2022 8
12/14/2022 30313290 9 50 Varick 05/06/2020 8
11/15/2022 30313311 28 Hotel Normandie 10/06/2020 8
11/15/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
11/15/2022 30313285 6 Marriott Lax 02/25/2022 8
11/15/2022 30313290 9 50 Varick 05/06/2020 8
10/17/2022 30313311 28 Hotel Normandie 10/06/2020 8
10/17/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
10/17/2022 30313285 6 Marriott Lax 02/25/2022 8
10/17/2022 30313290 9 50 Varick 05/06/2020 8
09/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
09/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
09/14/2022 30313285 6 Marriott Lax 02/25/2022 8
09/14/2022 30313290 9 50 Varick 05/06/2020 8
08/12/2022 30313311 28 Hotel Normandie 10/06/2020 8
08/12/2022 30313282 3 Godfrey Hotel 05/06/2021 8
08/12/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
08/12/2022 30313285 6 Marriott Lax 02/25/2022 8
08/12/2022 30313290 9 50 Varick 05/06/2020 8
07/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
07/14/2022 30313282 3 Godfrey Hotel 05/06/2021 8
07/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
07/14/2022 30313285 6 Marriott Lax 02/25/2022 8
07/14/2022 30313290 9 50 Varick 05/06/2020 8
06/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
06/14/2022 30313282 3 Godfrey Hotel 05/06/2021 8
06/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
06/14/2022 30313285 6 Marriott Lax 02/25/2022 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 31 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4
HISTORICAL LOAN MODIFICATION DETAIL
May 14, 2026
Modification
Code (4)
Distribution Modification
Date Loan ID OMCR Property Name Date
06/14/2022 30313290 9 50 Varick 05/06/2020 8
05/13/2022 30313311 28 Hotel Normandie 10/06/2020 8
05/13/2022 30313282 3 Godfrey Hotel 05/06/2021 8
05/13/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
05/13/2022 30313285 6 Marriott Lax 02/25/2022 8
05/13/2022 30313290 9 50 Varick 05/06/2020 8
04/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
04/14/2022 30313282 3 Godfrey Hotel 05/06/2021 8
04/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
04/14/2022 30313290 9 50 Varick 05/06/2020 8
03/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
03/14/2022 30313282 3 Godfrey Hotel 05/06/2021 8
03/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
03/14/2022 30313290 9 50 Varick 05/06/2020 8
02/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
02/14/2022 30313282 3 Godfrey Hotel 05/06/2021 8
02/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
02/14/2022 30313290 9 50 Varick 05/06/2020 8
01/14/2022 30313311 28 Hotel Normandie 10/06/2020 8
01/14/2022 30313282 3 Godfrey Hotel 05/06/2021 8
01/14/2022 30313316 33 Courtyard Brunswick 09/30/2020 8
01/14/2022 30313290 9 50 Varick 05/06/2020 8
12/14/2021 30313311 28 Hotel Normandie 10/06/2020 8
12/14/2021 30313282 3 Godfrey Hotel 05/06/2021 8
12/14/2021 30313316 33 Courtyard Brunswick 09/30/2020 8
12/14/2021 30313290 9 50 Varick 05/06/2020 8
11/15/2021 30313311 28 Hotel Normandie 10/06/2020 8
11/15/2021 30313282 3 Godfrey Hotel 05/06/2021 8
11/15/2021 30313316 33 Courtyard Brunswick 09/30/2020 8
11/15/2021 30313290 9 50 Varick 05/06/2020 8
10/15/2021 30313311 28 Hotel Normandie 10/06/2020 8
10/15/2021 30313282 3 Godfrey Hotel 05/06/2021 8
10/15/2021 30313316 33 Courtyard Brunswick 09/30/2020 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 32 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL LOAN MODIFICATION DETAIL
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
10/15/2021 30313290 9 50 Varick 05/06/2020 8
09/14/2021 30313311 28 Hotel Normandie 10/06/2020 8
09/14/2021 30313282 3 Godfrey Hotel 05/06/2021 8
09/14/2021 30313316 33 Courtyard Brunswick 09/30/2020 8
09/14/2021 30313290 9 50 Varick 05/06/2020 8
08/13/2021 30313311 28 Hotel Normandie 10/06/2020 8
08/13/2021 30313282 3 Godfrey Hotel 05/06/2021 8
08/13/2021 30313316 33 Courtyard Brunswick 09/30/2020 8
08/13/2021 30313290 9 50 Varick 05/06/2020 8
07/14/2021 30313311 28 Hotel Normandie 10/06/2020 8
07/14/2021 30313282 3 Godfrey Hotel 05/19/2021 8
07/14/2021 30313290 9 50 Varick 05/06/2020 8
06/14/2021 30313311 28 Hotel Normandie 10/06/2020 8
06/14/2021 30313282 3 Godfrey Hotel 05/06/2020 8
06/14/2021 30313290 9 50 Varick 05/06/2020 8
05/14/2021 30313311 28 Hotel Normandie 10/06/2020 8
05/14/2021 30313282 3 Godfrey Hotel 05/06/2020 8
05/14/2021 30313290 9 50 Varick 05/06/2020 8
04/14/2021 30313311 28 Hotel Normandie 10/06/2020 8
04/14/2021 30313282 3 Godfrey Hotel 05/06/2020 8
04/14/2021 30313290 9 50 Varick 05/06/2020 8
03/12/2021 30313311 28 Hotel Normandie 10/06/2020 8
03/12/2021 30313282 3 Godfrey Hotel 05/06/2020 8
03/12/2021 30313290 9 50 Varick 05/06/2020 8
02/12/2021 30313311 28 Hotel Normandie 10/06/2020 8
02/12/2021 30313282 3 Godfrey Hotel 05/06/2020 8
02/12/2021 30313290 9 50 Varick 05/06/2020 8
01/14/2021 30313311 28 Hotel Normandie 10/06/2020 8
01/14/2021 30313282 3 Godfrey Hotel 05/06/2020 8
01/14/2021 30313290 9 50 Varick 05/06/2020 8
12/14/2020 30313311 28 Hotel Normandie 10/06/2020 8
12/14/2020 30313282 3 Godfrey Hotel 05/06/2020 8
12/14/2020 30313290 9 50 Varick 05/06/2020 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 33 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL LOAN MODIFICATION DETAIL
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
11/16/2020 30313311 28 Hotel Normandie 10/06/2020 8
11/16/2020 30313282 3 Godfrey Hotel 05/06/2020 8
11/16/2020 30313290 9 50 Varick 05/06/2020 8
10/15/2020 30313311 28 Hotel Normandie 04/06/2020 8
10/15/2020 30313282 3 Godfrey Hotel 05/06/2020 8
10/15/2020 30313290 9 50 Varick 05/06/2020 8
09/14/2020 30313311 28 Hotel Normandie 04/06/2020 8
09/14/2020 30313282 3 Godfrey Hotel 05/06/2020 8
09/14/2020 30313290 9 50 Varick 05/06/2020 8
08/14/2020 30313311 28 Hotel Normandie 04/06/2020 8
08/14/2020 30313282 3 Godfrey Hotel 05/06/2020 8
08/14/2020 30313290 9 50 Varick 05/06/2020 8
07/14/2020 30313311 28 Hotel Normandie 04/06/2020 8
07/14/2020 30313282 3 Godfrey Hotel 05/06/2020 8
07/14/2020 30313290 9 50 Varick 05/06/2020 8
06/12/2020 30313311 28 Hotel Normandie 04/06/2020 8
06/12/2020 30313290 9 50 Varick 05/06/2020 8
05/14/2020 30313311 28 Hotel Normandie 04/06/2020 8
Reports Available at sf.citidirect.com v. 21.09.28 Page 34 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
SPECIALLY SERVICED LOAN DETAIL
Special Servicing Ending Ending Most Most Recent Most Recent Most Recent
Workout Fee Amount Scheduled Actual Recent Valuation Special Servicer Master Servicer
Loan ID OMCR Strategy (3) Plus Adjustments Balance Balance Value Date Transfer Date Return Date
30313316 33 13 3,500.00 8,181,942.97 8,358,834.95 13,000,000.00 11/07/2025 09/10/2025
Reports Available at sf.citidirect.com v. 21.09.28 Page 35 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL SPECIALLY SERVICED LOANS
Special Servicing Ending Ending Most Most Recent Most Recent Most Recent
Distribution Workout Fee Amount Scheduled Actual Recent Valuation Special Servicer Master Servicer
Date Loan ID OMCR Strategy (3) Plus Adjustments Balance Balance Value Date Transfer Date Return Date
12/14/2021 30313282 3 8 3,500.00 44,994,086.53 44,994,086.53 71,000,000.00 11/01/2020 09/09/2020 11/04/2021
11/15/2021 30313282 3 1 (63,791.51 ) 44,994,086.53 44,994,086.53 71,000,000.00 11/01/2020 09/09/2020
10/15/2021 30313282 3 1 9,373.77 44,994,086.53 44,994,086.53 71,000,000.00 11/01/2020 09/09/2020
09/14/2021 30313282 3 1 9,686.23 44,994,086.53 44,994,086.53 71,000,000.00 11/01/2020 09/09/2020
08/13/2021 30313282 3 1 9,686.23 44,994,086.53 44,994,086.53 71,000,000.00 11/01/2020 09/09/2020
07/14/2021 30313282 3 1 (312.46 ) 44,994,086.53 44,994,086.53 71,000,000.00 11/01/2020 09/09/2020
06/14/2021 30313282 3 1 9,671.62 44,864,286.34 45,383,006.43 71,000,000.00 11/01/2020 09/09/2020
05/14/2021 30313282 3 1 9,373.77 44,926,231.75 45,383,006.43 71,000,000.00 11/01/2020 09/09/2020
04/14/2021 30313282 3 1 9,699.44 44,994,086.53 45,383,006.43 101,400,000.00 03/28/2017 09/09/2020
03/12/2021 30313282 3 1 8,776.29 45,055,479.91 45,567,645.58 101,400,000.00 03/28/2017 09/09/2020
02/12/2021 30313282 3 1 9,729.69 45,135,188.72 45,567,645.58 101,400,000.00 03/28/2017 09/09/2020
01/14/2021 30313282 3 1 9,742.72 45,195,982.00 45,567,645.58 101,400,000.00 03/28/2017 09/09/2020
12/14/2020 30313282 3 1 9,442.29 45,256,516.73 45,567,645.58 101,400,000.00 03/28/2017 09/09/2020
11/16/2020 30313282 3 1 9,769.95 45,323,011.95 45,567,645.58 101,400,000.00 03/28/2017 09/09/2020
10/15/2020 30313282 3 1 6,943.59 45,383,006.43 45,567,645.58 101,400,000.00 03/28/2017 09/09/2020
07/14/2022 30313285 6 8 (16,165.78 ) 36,723,512.64 36,784,274.46 182,000,000.00 04/26/2021 12/10/2020 06/30/2022
06/14/2022 30313285 6 1 7,930.74 36,784,274.46 36,899,836.72 182,000,000.00 04/26/2021 12/10/2020
05/13/2022 30313285 6 1 7,687.47 36,839,567.38 36,899,836.72 182,000,000.00 04/26/2021 12/10/2020
04/14/2022 30313285 6 1 (107,897.61 ) 36,899,836.72 36,899,836.72 182,000,000.00 04/26/2021 12/10/2020
03/14/2022 30313285 6 1 7,199.28 36,954,622.97 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
02/14/2022 30313285 6 1 7,982.31 37,024,878.60 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
01/14/2022 30313285 6 1 7,993.93 37,079,116.61 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
12/14/2021 30313285 6 1 7,748.36 37,133,116.82 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
11/15/2021 30313285 6 1 8,018.16 37,192,140.45 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
10/15/2021 30313285 6 1 7,771.71 37,245,645.11 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
09/14/2021 30313285 6 1 8,042.18 37,304,191.22 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
08/13/2021 30313285 6 1 8,053.54 37,357,204.61 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
07/14/2021 30313285 6 1 7,805.80 37,409,985.57 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
06/14/2021 30313285 6 1 8,077.25 37,467,834.29 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
05/14/2021 30313285 6 13 7,828.65 37,520,130.20 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
04/14/2021 30313285 6 13 8,100.76 37,577,511.51 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
03/12/2021 30313285 6 13 7,329.95 37,629,326.55 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
Reports Available at sf.citidirect.com v. 21.09.28 Page 36 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL SPECIALLY SERVICED LOANS
Special Servicing Ending Ending Most Most Recent Most Recent Most Recent
Distribution Workout Fee Amount Scheduled Actual Recent Valuation Special Servicer Master Servicer
Date Loan ID OMCR Strategy (3) Plus Adjustments Balance Balance Value Date Transfer Date Return Date
02/12/2021 30313285 6 13 8,126.35 37,696,909.14 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
01/14/2021 30313285 6 1 5,774.89 37,748,200.69 37,961,804.09 300,800,000.00 02/01/2018 12/10/2020
12/14/2020 30313301 18 6 (7,347.57 ) - 22,750,000.00 44,000,000.00 06/01/2017 09/10/2020
11/16/2020 30313301 18 6 4,897.57 22,750,000.00 22,750,000.00 44,000,000.00 06/01/2017 09/10/2020
10/15/2020 30313301 18 6 2,450.00 22,750,000.00 22,750,000.00 44,000,000.00 06/01/2017 09/10/2020
12/14/2022 30313308 25 8 (3,500.00 ) - - 21,300,000.00 07/19/2017 09/21/2021
11/15/2022 30313308 25 6 3,500.00 14,346,175.77 14,346,175.77 21,300,000.00 07/19/2017 09/21/2021
10/17/2022 30313308 25 6 (3,500.00 ) 14,368,299.60 14,368,299.60 21,300,000.00 07/19/2017 09/21/2021
09/14/2022 30313308 25 6 - 14,392,286.85 14,392,286.85 21,300,000.00 07/19/2017 09/21/2021
08/12/2022 30313308 25 13 - 14,414,216.34 14,414,216.34 21,300,000.00 07/19/2017 09/21/2021
07/14/2022 30313308 25 13 - 14,436,053.41 14,436,053.41 21,300,000.00 07/19/2017 09/21/2021
06/14/2022 30313308 25 13 (3,500.00 ) 14,459,764.29 14,459,764.29 21,300,000.00 07/19/2017 09/21/2021
05/13/2022 30313308 25 13 3,500.00 14,481,409.40 14,504,935.26 21,300,000.00 07/19/2017 09/21/2021
04/14/2022 30313308 25 13 3,500.00 14,504,935.26 14,526,389.99 21,300,000.00 07/19/2017 09/21/2021
03/14/2022 30313308 25 13 - 14,526,389.99 14,526,389.99 21,300,000.00 07/19/2017 09/21/2021
02/14/2022 30313308 25 13 (10,500.00 ) 14,553,690.13 14,553,690.13 21,300,000.00 07/19/2017 09/21/2021
01/14/2022 30313308 25 13 3,500.00 14,574,939.38 14,574,939.38 21,300,000.00 07/19/2017 09/21/2021
12/14/2021 30313308 25 13 3,500.00 14,596,099.08 14,619,157.11 21,300,000.00 07/19/2017 09/21/2021
11/15/2021 30313308 25 13 3,500.00 14,619,157.11 14,619,157.11 21,300,000.00 07/19/2017 09/21/2021
10/15/2021 30313308 25 13 3,500.00 14,640,130.45 14,640,130.45 21,300,000.00 07/19/2017 09/21/2021
08/14/2024 30313312 29 8 (20,322.58 ) 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023 07/26/2024
07/12/2024 30313312 29 98 3,500.00 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023
06/14/2024 30313312 29 98 3,500.00 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023
05/14/2024 30313312 29 98 3,500.00 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023
04/12/2024 30313312 29 98 3,500.00 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023
03/14/2024 30313312 29 13 3,500.00 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023
02/14/2024 30313312 29 13 3,500.00 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023
01/12/2024 30313312 29 13 2,822.58 11,825,000.00 11,825,000.00 21,600,000.00 10/01/2017 12/07/2023
05/14/2026 30313316 33 13 3,500.00 8,181,942.97 8,358,834.95 13,000,000.00 11/07/2025 09/10/2025
04/14/2026 30313316 33 13 3,500.00 8,198,817.79 8,358,834.95 13,000,000.00 11/07/2025 09/10/2025
03/13/2026 30313316 33 13 3,500.00 8,214,428.78 8,358,834.95 13,000,000.00 11/07/2025 09/10/2025
02/13/2026 30313316 33 13 3,500.00 8,233,548.81 8,358,834.95 13,000,000.00 11/07/2025 09/10/2025
Reports Available at sf.citidirect.com v. 21.09.28 Page 37 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL SPECIALLY SERVICED LOANS
Special Servicing Ending Ending Most Most Recent Most Recent Most Recent
Distribution Workout Fee Amount Scheduled Actual Recent Valuation Special Servicer Master Servicer
Date Loan ID OMCR Strategy (3) Plus Adjustments Balance Balance Value Date Transfer Date Return Date
01/14/2026 30313316 33 13 3,500.00 8,249,003.79 8,358,834.95 16,400,000.00 05/25/2017 09/10/2025
12/12/2025 30313316 33 13 3,500.00 8,264,389.35 8,358,834.95 16,400,000.00 05/25/2017 09/10/2025
11/17/2025 30313316 33 13 3,500.00 8,280,905.72 8,358,834.95 16,400,000.00 05/25/2017 09/10/2025
10/15/2025 30313316 33 13 3,500.00 8,296,147.98 8,358,834.95 16,400,000.00 05/25/2017 09/10/2025
02/14/2024 30313319 37 8 - 6,846,715.21 6,846,715.21 12,000,000.00 02/22/2023 05/27/2020 12/29/2023
01/12/2024 30313319 37 3 3,161.29 6,863,898.35 6,863,898.35 12,000,000.00 02/22/2023 05/27/2020
12/14/2023 30313319 37 3 3,500.00 6,881,007.46 6,881,007.46 12,000,000.00 02/22/2023 05/27/2020
11/14/2023 30313319 37 3 3,500.00 6,899,001.69 6,915,959.56 12,000,000.00 02/22/2023 05/27/2020
10/16/2023 30313319 37 3 3,500.00 6,915,959.56 6,933,808.04 12,000,000.00 02/22/2023 05/27/2020
09/14/2023 30313319 37 3 3,500.00 6,933,808.04 6,933,808.04 12,000,000.00 02/22/2023 05/27/2020
08/14/2023 30313319 37 3 3,500.00 6,950,615.95 6,950,615.95 12,000,000.00 02/22/2023 05/27/2020
07/14/2023 30313319 37 3 3,500.00 6,967,351.44 7,361,263.58 12,000,000.00 02/22/2023 05/27/2020
06/14/2023 30313319 37 3 3,500.00 6,984,985.61 7,361,263.58 12,000,000.00 02/22/2023 05/27/2020
05/12/2023 30313319 37 3 3,500.00 7,001,573.02 7,361,263.58 12,000,000.00 02/22/2023 05/27/2020
04/14/2023 30313319 37 3 3,500.00 7,019,064.49 7,602,141.74 12,000,000.00 02/22/2023 05/27/2020
03/14/2023 30313319 37 3 3,500.00 7,035,505.07 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
02/14/2023 30313319 37 3 3,500.00 7,054,816.30 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
01/13/2023 30313319 37 3 3,500.00 7,071,102.85 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
12/14/2022 30313319 37 3 3,500.00 7,087,319.23 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
11/15/2022 30313319 37 3 3,500.00 7,104,453.13 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
10/17/2022 30313319 37 3 3,500.00 7,120,525.82 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
09/14/2022 30313319 37 3 3,500.00 7,137,521.25 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
08/12/2022 30313319 37 3 3,500.00 7,153,451.47 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
07/14/2022 30313319 37 3 3,500.00 7,169,313.05 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
06/14/2022 30313319 37 3 3,500.00 7,186,105.04 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
05/13/2022 30313319 37 3 3,500.00 7,201,825.94 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
04/14/2022 30313319 37 3 3,500.00 7,218,482.35 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
03/14/2022 30313319 37 3 3,500.00 7,234,063.75 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
02/14/2022 30313319 37 3 3,500.00 7,252,601.96 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
01/14/2022 30313319 37 3 3,500.00 7,268,036.36 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
12/14/2021 30313319 37 3 3,500.00 7,283,404.26 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
11/15/2021 30313319 37 3 3,500.00 7,299,720.48 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
Reports Available at sf.citidirect.com v. 21.09.28 Page 38 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL SPECIALLY SERVICED LOANS
Special Servicing Ending Ending Most Most Recent Most Recent Most Recent
Distribution Workout Fee Amount Scheduled Actual Recent Valuation Special Servicer Master Servicer
Date Loan ID OMCR Strategy (3) Plus Adjustments Balance Balance Value Date Transfer Date Return Date
10/15/2021 30313319 37 3 3,500.00 7,314,951.87 7,602,141.74 11,500,000.00 02/05/2021 05/27/2020
09/14/2021 30313319 37 3 3,500.00 7,331,136.54 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
08/13/2021 30313319 37 3 3,500.00 7,346,232.58 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
07/14/2021 30313319 37 3 3,500.00 7,361,263.58 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
06/14/2021 30313319 37 3 3,500.00 7,377,255.12 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
05/14/2021 30313319 37 3 3,500.00 7,392,152.46 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
04/14/2021 30313319 37 3 3,500.00 7,408,015.20 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
03/12/2021 30313319 37 3 3,500.00 7,422,780.01 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
02/12/2021 30313319 37 3 3,500.00 7,440,583.53 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
01/14/2021 30313319 37 3 3,500.00 7,455,208.02 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
12/14/2020 30313319 37 3 3,500.00 7,469,769.50 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
11/16/2020 30313319 37 3 3,500.00 7,485,308.57 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
10/15/2020 30313319 37 3 3,500.00 7,499,740.37 7,602,141.74 11,000,000.00 07/27/2020 05/27/2020
09/14/2020 30313319 37 13 3,500.00 7,515,154.46 7,602,141.74 13,000,000.00 07/19/2017 05/27/2020
08/14/2020 30313319 37 13 3,500.00 7,529,457.67 7,602,141.74 13,000,000.00 07/19/2017 05/27/2020
07/14/2020 30313319 37 13 3,500.00 7,543,699.25 7,602,141.74 13,000,000.00 07/19/2017 05/27/2020
06/12/2020 30313319 37 98 564.52 7,558,930.03 7,602,141.74 13,000,000.00 07/19/2017 05/27/2020
Reports Available at sf.citidirect.com v. 21.09.28 Page 39 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
UNSCHEDULED PRINCIPAL DETAIL
Liquidation / Liquid / Prepay Principal Principal Prepayment Interest Prepayment Yield Maintenance
Loan ID OMCR Prepayment Date Code (5) Collections Adjustments Excess / (Shortfall) Penalties (PPP) Penalties (YM)
No Loans with Unscheduled Principal Activity to Report.
Reports Available at sf.citidirect.com v. 21.09.28 Page 40 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL UNSCHEDULED PRINCIPAL DETAIL
Distribution Liquidation / Liquid / Prepay Principal Principal Prepayment Interest Prepayment Yield Maintenance
Date Loan ID OMCR Prepayment Date Code (5) Collections Adjustments Excess / (Shortfall) Penalties (PPP) Penalties (YM)
4/14/2025 30313326 44 04/06/2025 1 95,990.50 - - - -
6/14/2024 30313332 50 06/06/2024 8 3,625,000.00 - - 36,250.00 -
10/16/2023 30313282 3 10/06/2023 5 42,991,675.51 - - - -
12/14/2022 30313308 25 11/16/2022 2 14,346,175.77 - - - -
10/17/2022 30313302 19 10/06/2022 5 21,295,198.58 - - - -
10/17/2022 30313314 31 10/06/2022 5 9,150,033.19 - - - -
10/17/2022 30313334 52 10/06/2022 5 3,017,928.76 - - - -
9/14/2022 30313309 26 09/06/2022 5 13,303,403.21 - - - -
9/14/2022 30313329 47 08/12/2022 5 4,645,431.06 - - - -
5/13/2022 30313320 38 05/06/2022 9 6,850,787.24 - - - 102,487.99
7/14/2021 30313282 3 0 (129,800.19 ) - - - -
12/14/2020 30313301 18 12/07/2020 8 22,750,000.00 - - - 500,454.78
Reports Available at sf.citidirect.com v. 21.09.28 Page 41 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
LIQUIDATED LOAN DETAIL
Beginning Most Liquidation Net Net Realized Date of Loss with
Scheduled Recent Sales Proceeds Liquidation Proceeds Loss to Current Current Cumulative Cumulative
Loan ID OMCR Balance Value Price Received Expense Available Trust Adj. to Loan Adj. to Loan Adj. to Loan Adj. to Trust
No Loans liquidated to Report.
Reports Available at sf.citidirect.com v. 21.09.28 Page 42 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
HISTORICAL LIQUIDATED LOAN
Beginning Most Liquidation Net Net Realized Date of Loss with
Distribution Scheduled Recent Sales Proceeds Liquidation Proceeds Loss to Current Current Cumulative Cumulative
Date Loan ID OMCR Balance Value Price Received Expense Available Trust Adj. to Loan Adj. to Loan Adj. to Loan Adj. to Trust
No Loans liquidated to Report.
Reports Available at sf.citidirect.com v. 21.09.28 Page 43 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
CREFC® INVESTOR REPORTING PACKAGE LEGENDS
1|CREFC Investor Reporting Package Legends
Property Type (1) Workout Strategy (3) Liquidation/Prepayment Code (5)
MF Multifamily 1 Modification 1 Partial Liquidation (Curtailment)
RT Retail 2 Foreclosure 2 Payoff Prior To Maturity
HC HealthCare 3 Bankruptcy 3 Disposition / Liquidation
IN Industrial 4 Extension 4 Repurchase / Substitution
MH Mobile Home Park 5 Note Sale 5 Full Payoff At Maturity
OF Office 6 DPO 6 DPO
MU Mixed Use 7 REO 7 Liquidation prior to 7/1/2006
LO Lodging 8 Resolved 8 Payoff With Penalty
SS Self Storage 9 Pending Return to Master Servicer 9 Payoff With Yield Maintenance
SE Securities 10 Deed In Lieu of Foreclosure 10 Curtailment With Penalty
CH Cooperative Housing 11 Full Payoff 11 Curtailment With Yield Maintenance
ZZ Missing Information 12 Reps and Warranties
SF SF 13 TBD
WH Warehouse 98 Other
OT Other
Modification Code (4)
Payment Status of Loan (2)
1 Maturity Date Extension
A In Grace Period 2 Amortization Change
B Late, but less than 30 Days 3 Principal Write-Off
0 Current 4 Blank (formerly Combination)
1 30-59 Days Delinquent 5 Temporary Rate Reduction
2 60-89 Days Delinquent 6 Capitalization of Interest
3 90-120 Days Delinquent 7 Capitalization of Taxes
4 Performing Matured Balloon 8 Other
5 Non Performing Matured Balloon 9 Combination
6 121+ Days Delinquent 10 Forbearance
Reports Available at sf.citidirect.com v. 21.09.28 Page 44 of 45 © Copyright 2026 Citigroup

Citigroup Commercial Mortgage Trust 2017-C4
Commercial Mortgage Pass-Through Certificates, Series 2017-C4 May 14, 2026
NOTES
No Notes available for this deal at this time.
Reports Available at sf.citidirect.com v. 21.09.28 Page 45 of 45 © Copyright 2026 Citigroup
Citigroup Commercial Mortgage Trust 2017-C4 published this content on May 27, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on May 27, 2026 at 13:43 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]