8-K - COMM 2015-DC1 Mortgage Trust - 6.04

Form 8-K - Current report: SEC Accession No. 0001888524-26-006745

Filing Date: 2026-04-14

Accepted: 2026-04-14 13:59:50

Documents: 1

Period of Report: 2026-04-10

Items: Item 6.04: Failure to Make a Required Distribution

COMM 2015-DC1 Mortgage Trust (Filer) CIK : 0001632814 (see all company filings) State of Incorp.: DE | Fiscal Year End: 1231 Type: 8-K | Act: 34 | File No.: 333-193376-16 | Film No.: 26860273 SIC : 6189 Asset-Backed Securities (CF Office: Office of Structured Finance)

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April 10, 2026 Date of Report (Date of Earliest Event Reported)

Central Index Key Number of the issuing entity: 0001632814 COMM 2015-DC1 Mortgage Trust (Exact name of issuing entity)

Central Index Key Number of the registrant: 0001013454 Deutsche Mortgage & Asset Receiving Corporation (Exact name of registrant as specified in its charter)

Central Index Key Number of the sponsor: 0001541294 German American Capital Corporation (Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001541886 UBS Real Estate Securities Inc. (Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001555524 LoanCore Capital Markets LLC (formerly known as Jefferies LoanCore LLC) (Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001542256 Natixis Real Estate Capital LLC (Exact name of sponsor as specified in its charter)

38-3955432 38-3955433 38-3955434 38-7135313

(State or other jurisdiction of incorporation of issuing entity)

(Commission File Number of issuing entity)

(I.R.S. Employer Identification Numbers)

c/o Computershare Trust Company, N.A., as agent for Wells Fargo Bank, National Association 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices of the issuing entity) (Zip Code)

(212) 250-2500 Registrant's Telephone number, including area code

Former name or former address, if changed since last report: Not Applicable

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

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Securities registered pursuant to Section 12(b) of the Act:

Name of each exchange on which registered

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

☐ Emerging growth company

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Item 6.04 Failure to Make a Required Distribution.

The Certificate Administrator made distributions to the Certificateholders on the February 12, 2026 and the March 12, 2026 Distribution Dates. The Certificate Administrator was subsequently notified by the Master Servicer on April 10, 2026 of a reallocation of proceeds between principal and interest applied to the February distribution. This reallocation of funds resulted in an additional principal payment to the Class A-M Certificateholders in an amount equal to $1,246,653.26 and an overpayment of interest to the Class V Certificateholders in an amount equal to $1,246,653.26 for the February distribution.

The payment adjustments described above to the February Distribution Date also impacted the payments to Certificateholders in the March distribution. This reallocation of funds resulted in an overpayment of interest to the Class A-M Certificateholders in an amount equal to $3,868.78, an additional interest payment to the Class D Certificateholders in an amount equal to $3,127.03, an overpayment of interest to the Class X-A Certificateholders in an amount equal to $576.86 and an additional interest payment to the Class X-F Certificateholders in an amount equal to $1,318.62 for the March distribution.

The payment adjustments to the impacted Certificateholders described above are expected to be made on or prior to the next distribution date.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Deutsche Mortgage & Asset Receiving Corporation (Depositor)

/s/ Matt Smith Matt Smith, Director

/s/ R. Chris Jones R. Chris Jones, Managing Director