CSAIL 2019-C15 Commercial Mortgage Trust

Tranches, pool and monthly delinquency indicator for CSAIL 2019-C15 Commercial Mortgage Trust.

Data as of loan data through September 2026; ratings as held in the dataset at build

Current pool balance: $735.6M (September 2026)
Original pool balance: $829.3M
Loans at issuance: 63
Closing date: 2019-03-06
Weighted average coupon at issuance: 5.03%
Weighted average LTV at issuance: 61.9%
30+ delinquent (latest): 5.36%
Realized stress score: 49.5
Net rating change since issuance: +0.08 notches

Tranches

Class	Original balance	Credit support (computed)	Coupon	CUSIP	Fitch	KBRA	S&P	Moody's	DBRS
A-1	$11.9M	98.57%	2.988% fixed	22945DAA1	PIF	not yet reported	not yet reported	WR	Discontinued
A-2	$64.1M	90.84%	3.450% fixed	22945DAC7	PIF	not yet reported	not yet reported	WR	Discontinued
A-3	$133.8M	74.71%	3.779% fixed	22945DAE3	AAA	not yet reported	not yet reported	Aaa	AAA (sf)
A-4	$345.2M	33.08%	4.053% fixed	22945DAG8	AAA	not yet reported	not yet reported	Aaa	AAA (sf)
A-S	$62.2M	25.58%	4.254% fixed	22945DAQ6	AAA	not yet reported	not yet reported	Aa3	AAA (sf)
A-SB	$25.5M	22.50%	3.903% fixed	22945DAJ2	AAA	not yet reported	not yet reported	Aaa	AAA (sf)
B	$37.3M	18.00%	4.476% fixed	22945DAS2	AA-	not yet reported	not yet reported	not yet reported	AA (low) (sf)
C	$39.4M	13.25%	5.146% floating (WAC)	22945DAU7	A-	not yet reported	not yet reported	not yet reported	A (low) (sf)
D	$26.5M	10.05%	3.000% fixed	22945DAY9	BBB-	not yet reported	not yet reported	not yet reported	BBB (low) (sf)
E-RR	$19.1M	7.75%	5.146% floating (WAC)	22945DBB8	not yet reported	not yet reported	not yet reported	not yet reported	BB (high) (sf)
F-RR	$20.7M	5.25%	5.146% floating (WAC)	22945DBD4	not yet reported	not yet reported	not yet reported	not yet reported	not yet reported
G-RR	$9.3M	4.13%	5.146% floating (WAC)	22945DBF9	not yet reported	not yet reported	not yet reported	not yet reported	not yet reported
NR-RR	$34.2M	0.00%	5.146% floating (WAC)	22945DBH5	not yet reported	not yet reported	not yet reported	not yet reported	not yet reported
R	not yet reported	not yet reported	not yet reported	22945DBJ1	not yet reported	not yet reported	not yet reported	not yet reported	not yet reported
X-A	$642.7M	Interest only	1.217% floating	22945DAL7	AAA	not yet reported	not yet reported	Aa1	AAA (sf)
X-B	$76.7M	Interest only	0.326% floating	22945DAN3	AA-	not yet reported	not yet reported	not yet reported	AA (sf)
X-D	$26.5M	Interest only	2.147% floating	22945DAW3	BBB-	not yet reported	not yet reported	not yet reported	BBB (sf)

Credit support is computed from the class stack order in the prospectus: the share of the deal's principal balance in classes junior to the class. Interest-only classes carry a notional balance and no principal support figure. Ratings are the latest held in the dataset for each class and agency; NR means the agency shows the class as not rated, WR that the rating was withdrawn, PIF that the class has been paid in full. Any other status value is shown exactly as the agency reports it. A + after a CUSIP marks a class with companion CUSIPs in the dataset.

Pool at issuance

Loans	63
Original loan balance	$1.08B
Weighted average coupon	5.03%
Weighted average LTV	61.9%
Median loan LTV	61.6%
Full-term interest only (share of balance)	48.7%
Balloon loans (share of balance)	100.0%
Largest loan (share of balance)	7.4%
Five largest loans (share of balance)	25.9%
Occupancy at issuance (weighted average)	90.6%

Realized outcomes

Months reported	91
Peak 30+ delinquency	17.95% (May 2020)
Ever severe (share of original balance)	10.44%
Ever modified (share of original balance)	1.29%
Past scheduled maturity (share of original balance)	0.00%
Non-performing matured (share of original balance)	58.20%
Maximum servicer advances (share of balance)	0.33%
Median DSCR, first year	1.83
Median DSCR, latest	1.79
Realized stress score	49.5

Property types

Property type	Original balance	Share of pool
Lodging	$268.2M	24.7%
Office	$235.7M	21.7%
Retail	$189.7M	17.5%
Mixed use	$121.0M	11.2%
Multifamily	$99.9M	9.2%
Warehouse	$35.4M	3.3%
Multiple property types	$35.0M	3.2%
SE	$21.6M	2.0%
Industrial	$5.8M	0.5%
Self storage	$4.5M	0.4%

Property type is reported for 93.8% of the pool balance; shares are of the full pool.

Largest loans

Property	Location	Original balance	Share of pool	Coupon	Originated
Darden HQ	Orlando, FL	$80.0M	7.4%	4.77%	2018
Embassy Suites Washington Square	Tigard, OR	$56.2M	5.2%	5.30%	2019
Ahwatukee Foothills Towne Center	Phoenix, AZ	$50.0M	4.6%	4.80%	2018
["Ahwatukee Foothills Towne Center", "Connecticut Commons", "Independence Commons", "Brookside Marketplace", "University Centre", "Towne Center Prado", "Poyner Place", "Route 22 Retail Center", "Commonwealth Center", "Ashley Crossing"]	not yet reported	$50.0M	4.6%	4.80%	2018
Causeway Square	North Miami, FL	$45.0M	4.2%	5.27%	2018

Delinquency and stress indicator

▬ 30+ days delinquent · ▬ Distressed (90+, foreclosure, REO, non-performing matured)

Monthly shares of the deal's reported balance, from the deal indicator series in the dataset. Months in which fewer than half of the reported loans carry a delinquency status code are not plotted.

Ratings

Classes with a CUSIP	17 of 17
Classes with a current rating in the dataset	13 of 17
Net rating change since issuance	+0.08 notches (balance-weighted)
Delinquency threshold crossed	May 2020
First downgrade	November 2022

Sources: SEC Form ABS-EE asset-level reports, Form 10-D distribution reports and the deal prospectus; rating histories published under SEC Rule 17g-7(b) and agency releases. Definitions are in the methods note on the market page.