UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

Current Report Pursuant

to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported) ~~September~~October 277, ~~2024~~2025

Ally Auto Receivables Trust ~~2024~~2025-21

(Issuing Entity with respect to Securities)

Ally Auto Assets LLC

(Depositor with respect to Securities)

Ally Bank

(Sponsor with respect to Securities)

Delaware	333-~~262894~~286053-0601	9933-~~6177055~~6959131
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification Number)
Ally Auto Assets LLC 500 Woodward Avenue Detroit, Michigan		48226
Ally Auto Assets LLC 500 Woodward Avenue Detroit, Michigan (Address of principal executive offices)		48226 (Zip Code)
(Address of principal executive offices)		(Zip Code)

Registrant’s Telephone Number, including area code: (866) 710-4623

(Former name or former address, if changed since last report)

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:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each class

Trading

Symbol(s)

Name of each exchange

on which registered

N/A

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 ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.01 and 8.01. Entry into a Material Definitive Agreement and Other Events.

Ally Auto Assets LLC (“Ally Auto”) has registered an issuance of $2214,~~130~~857,~~421~~853,~~031~~748.4625 in principal amount of asset backed ~~notes~~ notes on Form SF-3 (Registration File No. 333-~~262894~~286053) under the Securities Act of 1933, as amended (the “Act”), filed on ~~February 22~~March 24, ~~2022~~ 2025, as amended by Pre-Effective Amendment No. 1 on ~~March 25~~May 2, ~~2022~~2025 (as amended, the “Registration Statement”).

~~Pursuant~~On toOctober 7, ~~the Registration Statement~~2025, Ally Auto ~~Receivables~~and ~~Trust~~Ally ~~2024-2~~Bank (the “~~Issuing Entity~~Sponsor”) ~~issued~~entered into an Underwriting Agreement with Barclays Capital Inc., BofA Securities, Inc. and ~~sold~~Wells ~~$329~~Fargo Securities,~~170~~ LLC,~~000~~ ~~aggregate~~as ~~principal~~representatives ~~balance~~of the several underwriters named therein (collectively, the “Underwriters”), for the issuance and sale of ~~Class~~an Aamount of certain asset backed notes of Ally Auto Receivables Trust 2025-21 ~~4.46%~~(the “Issuing Entity”) in the following classes: (i) the Class A-2 Asset Backed Notes (the “Class A-2 Notes”), ~~$376,670,000~~ ~~aggregate~~(ii) ~~principal balance of~~ the Class A-3 ~~4.14%~~ Asset Backed Notes (the “Class A-3 Notes”), and ~~$71,410,000~~(iii) the ~~aggregate principal balance of~~ Class A-4 ~~4.14%~~ Asset Backed Notes (the “Class A-4 Notes” and, together with the Class A-2 Notes and the Class A-3 Notes, the “~~Sold~~Offered Notes”) ~~on September 27, 2024 (the “Closing Date”)~~. The ~~Sold~~retained ~~Notes have an aggregate principal balance of $777,250,000. The Issuing Entity also issued $11,720,000 aggregate principal balance of~~ Class A-1 ~~4.803%~~ Asset Backed Notes (the “Class A-1 R Notes”), ~~$17,330,000~~the ~~aggregate principal balance of~~ retained Class A-2 ~~4.46%~~ Asset Backed Notes (the “Class A-2 R Notes”), ~~$19,830,000~~the ~~aggregate principal balance of~~ retained Class A-3 ~~4.14%~~ Asset Backed Notes (the “Class A-3 R Notes”), ~~$3,760,000~~the ~~aggregate principal balance of~~ retained Class A-4 ~~4.14%~~ Asset Backed Notes (the “Class A-4 R Notes” and, together with the Class A-1 R Notes, the Class A-2 R Notes and the Class A-3 R Notes, the “Class A R Notes”), ~~$1,180,000~~the ~~aggregate~~retained ~~principal balance of~~ Class B ~~4.40%~~ Asset Backed Notes (the “Class B R Notes”), ~~$980,000~~the ~~aggregate~~retained ~~principal balance of~~ Class C ~~4.65%~~ Asset Backed Notes (the “Class C R Notes”) and ~~$730,000~~the ~~aggregate~~retained ~~principal balance of~~ Class D ~~4.99%~~ Asset Backed Notes (the “Class D R Notes” and, ~~together~~collectively with the Class A R Notes, the Class B R Notes and the Class C R Notes, the “Retained Notes”). ~~Additionally,~~and the ~~Issuing~~Retained ~~Entity~~Notes ~~issued~~together ~~Certificates~~ with athe ~~nominal~~Offered ~~amount of $95~~Notes,~~000~~ (the “~~Majority Certificates~~Notes”) ~~and~~will ~~Certificates~~also ~~with~~be aissued ~~nominal~~by ~~amount~~the Issuing ofEntity. ~~$5,000~~The ~~(the~~Offered ~~“Retained~~Notes ~~Certificates”~~have ~~and,~~an ~~together~~aggregate ~~with~~principal ~~the~~balance ~~Majority~~of ~~Certificates~~$758, ~~the “Certificates”)~~340,000. Only the ~~Sold~~ Offered Notes ~~were~~have ~~offered~~been ~~publicly~~registered ~~for~~pursuant ~~sale.~~to On the ~~Closing~~Act ~~Date,~~under ~~Ally~~the ~~Auto~~Registration ~~also~~Statement. ~~sold~~The ~~$222,540,000~~Retained ~~aggregate~~Notes ~~principal~~will ~~balance~~be ofinitially ~~Class~~retained ~~A-1~~or ~~4.803%~~held ~~Asset~~by ~~Backed~~Ally Auto ~~Notes,~~or ~~$22,230,000~~a ~~aggregate~~majority-owned ~~principal~~affiliate ~~balance~~ of ~~Class~~ Bthe 4Sponsor.~~40%~~ ~~Asset~~Five ~~Backed~~percent ~~Notes,~~(5%) ~~$18,520,000~~of ~~aggregate~~the ~~principal~~Certificates ~~balance~~ of ~~Class~~the CIssuing ~~4.65%~~Entity ~~Asset~~will ~~Backed~~be ~~Notes~~initially ~~and~~retained ~~$13,760,000~~or ~~aggregate~~held ~~principal~~by ~~balance~~Ally ofAuto ~~Class~~or Da ~~4.99%~~majority-owned ~~Asset~~affiliate ~~Backed~~of ~~Notes~~the toSponsor ~~Ally~~and ~~Subordinate~~ninety-five ~~Holdings~~percent ~~LLC,~~(95%) anwill ~~affiliate of Ally~~be ~~Auto,~~initially inheld aor ~~transaction~~retained ~~exempt~~by ~~from~~Ally ~~the~~Auto ~~registration~~or ~~requirements~~an affiliate of ~~the~~Ally ~~Act~~Auto. ~~The~~It ~~Retained~~is ~~Notes~~expected ~~and~~that the ~~Certificates~~Notes will ~~initially~~ be ~~held~~issued byon ~~Ally~~or ~~Auto,~~about ~~a majority-owned affiliate of Ally Bank~~October 16, 2025 (the ~~sponsor~~“Closing Date”).

This Current Report on Form 8-K is being filed to satisfy an undertaking to file copies of certain agreements executed in connection with the issuance of the Notes, the forms of which (other than the Securities Account Control Agreement) were filed as Exhibits to the Registration Statement.

The Notes ~~were~~will be issued pursuant to an Indenture attached hereto as Exhibit 4.1, to be dated as of the Closing Date between the Issuing Entity and U.S. Bank Trust Company, National Association, as Indenture Trustee.

The Notes evidence indebtedness of the Issuing Entity, the assets of which will consist primarily of motor vehicle retail instalment sale contracts (the “Receivables”) secured by new and used automobiles and light duty trucks financed thereby.

On the Closing Date, the Receivables ~~had~~will have the characteristics described in the Prospectus, dated as of ~~September~~October 7, 242025, ~~2024~~to ~~filed~~be filed with the Commission pursuant to Rule 424(b)(5) of the Act on ~~September 26~~October 9, ~~2024~~2025.

Legal opinions of Mayer Brown LLP are attached as Exhibit 5.1 and Exhibit 8.1.

Item 9.01. Exhibits

Exhibit 4.1		Indenture between Ally Auto Receivables Trust 2024-2 and U.S. Bank Trust Company, National Association, as Indenture Trustee, dated as of September 27, 2024.
Exhibit 1.1		Underwriting Agreement, dated as of October 7, 2025, by and among Ally Bank, Ally Auto Assets LLC and Barclays Capital Inc., BofA Securities, Inc. and Wells Fargo Securities, LLC, as representatives of the underwriters named therein.
Exhibit 4.2		Trust Agreement between Ally Auto Assets LLC, as Depositor and BNY Mellon Trust of Delaware, as Owner Trustee and Paying Agent, dated as of September 27, 2024.
Exhibit 4.1		Indenture between Ally Auto Receivables Trust 2025-1 and U.S. Bank Trust Company, National Association, as Indenture Trustee, to be dated as of October 16, 2025.
Exhibit 4.3		Pooling Agreement between Ally Bank, as Seller, and Ally Auto Assets LLC, dated as of September 27, 2024.
Exhibit 4.2		Trust Agreement between Ally Auto Assets LLC, as Depositor, and BNY Mellon Trust of Delaware, as Owner Trustee and Paying Agent, to be dated as of October 16, 2025.

Exhibit 99.1		Trust Sale Agreement between Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2024-2, as Issuing Entity, dated as of September 27, 2024.
Exhibit 4.3		Pooling Agreement between Ally Bank, as Seller, and Ally Auto Assets LLC, to be dated as of October 16, 2025.
Exhibit 99.2		Custodian Agreement between Ally Bank, as Custodian, and Ally Auto Assets LLC, as Depositor, dated as of September 27, 2024.
Exhibit 5.1		Opinion of Counsel of Mayer Brown LLP, dated as of October 9, 2025.
Exhibit 99.3		Administration Agreement among Ally Auto Receivables Trust 2024-2, as Issuing Entity, Ally Bank, as Administrator, and U.S. Bank Trust Company, National Association, as Indenture Trustee, dated as of September 27, 2024.
Exhibit 8.1		Opinion of Counsel of Mayer Brown LLP, dated as of October 9, 2025.
Exhibit 99.4		Servicing Agreement among Ally Bank, as Servicer, Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2024-2, as Issuing Entity, dated as of September 27, 2024.
Exhibit 36.1		Depositor Certification for shelf offerings of asset-backed securities.
Exhibit 99.5		Asset Representations Review Agreement among Ally Auto Receivables Trust 2024-2, as Issuing Entity, Ally Bank, as Sponsor, and Clayton Fixed Income Services LLC, as Asset Representations Reviewer, dated as of September 27, 2024.
Exhibit 99.1		Trust Sale Agreement between Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2025-1, as Issuing Entity, to be dated as of October 16, 2025.
Exhibit 99.6		Securities Account Control Agreement among Ally Auto Receivables Trust 2024-2, as Issuing Entity, U.S. Bank Trust Company, National Association, as Indenture Trustee, and U.S. Bank National Association, as Securities Intermediary, dated as of September 27, 2024.
Exhibit 99.2		Custodian Agreement between Ally Bank, as Custodian, and Ally Auto Assets LLC, as Depositor, to be dated as of October 16, 2025.
Exhibit 99.3		Administration Agreement among Ally Auto Receivables Trust 2025-1, as Issuing Entity, Ally Bank, as Administrator, and U.S. Bank Trust Company, National Association, as Indenture Trustee, to be dated as of October 16, 2025.
Exhibit 99.4		Servicing Agreement among Ally Bank, as Servicer, Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2025-1, as Issuing Entity, to be dated as of October 16, 2025.
Exhibit 99.5		Asset Representations Review Agreement among Ally Auto Receivables Trust 2025-1, as Issuing Entity, Ally Bank, as Sponsor, and Clayton Fixed Income Services LLC, as Asset Representations Reviewer, to be dated as of October 16, 2025.
Exhibit 99.6		Securities Account Control Agreement among Ally Auto Receivables Trust 2025-1, as Issuing Entity, U.S. Bank Trust Company, National Association, as Indenture Trustee, and U.S. Bank National Association, as Securities Intermediary, to be dated as of October 16, 2025.

Form 8-K re: transaction documents and

underwriting agreement

EXHIBIT INDEX

Exhibit No.		Description
Exhibit 4.1		Indenture between Ally Auto Receivables Trust 2024-2 and U.S. Bank Trust Company, National Association, as Indenture Trustee, dated as of September 27, 2024.
Exhibit 1.1		Underwriting Agreement, dated as of October 7, 2025, by and among Ally Bank, Ally Auto Assets LLC and Barclays Capital Inc., BofA Securities, Inc. and Wells Fargo Securities, LLC, as representatives of the underwriters named therein.
Exhibit 4.2		Trust Agreement between Ally Auto Assets LLC, as Depositor and BNY Mellon Trust of Delaware, as Owner Trustee and Paying Agent, dated as of September 27, 2024.
Exhibit 4.1		Indenture between Ally Auto Receivables Trust 2025-1 and U.S. Bank Trust Company, National Association, as Indenture Trustee, to be dated as of October 16, 2025.
Exhibit 4.3		Pooling Agreement between Ally Bank, as Seller, and Ally Auto Assets LLC, dated as of September 27, 2024.
Exhibit 4.2		Trust Agreement between Ally Auto Assets LLC, as Depositor, and BNY Mellon Trust of Delaware, as Owner Trustee and Paying Agent, to be dated as of October 16, 2025.
Exhibit 99.1		Trust Sale Agreement between Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2024-2, as Issuing Entity, dated as of September 27, 2024.
Exhibit 4.3		Pooling Agreement between Ally Bank, as Seller, and Ally Auto Assets LLC, to be dated as of October 16, 2025.
Exhibit 99.2		Custodian Agreement between Ally Bank, as Custodian, and Ally Auto Assets LLC, as Depositor, dated as of September 27, 2024.
Exhibit 5.1		Opinion of Counsel of Mayer Brown LLP, dated as of October 9, 2025.
Exhibit 99.3		Administration Agreement among Ally Auto Receivables Trust 2024-2, as Issuing Entity, Ally Bank, as Administrator, and U.S. Bank Trust Company, National Association, as Indenture Trustee, dated as of September 27, 2024.
Exhibit 8.1		Opinion of Counsel of Mayer Brown LLP, dated as of October 9, 2025.
Exhibit 99.4		Servicing Agreement among Ally Bank, as Servicer, Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2024-2, as Issuing Entity, dated as of September 27, 2024.
Exhibit 36.1		Depositor Certification for shelf offerings of asset-backed securities.
Exhibit 99.5		Asset Representations Review Agreement among Ally Auto Receivables Trust 2024-2, as Issuing Entity, Ally Bank, as Sponsor, and Clayton Fixed Income Services LLC, as Asset Representations Reviewer, dated as of September 27, 2024.
Exhibit 99.1		Trust Sale Agreement between Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2025-1, as Issuing Entity, to be dated as of October 16, 2025.
Exhibit 99.6		Securities Account Control Agreement among Ally Auto Receivables Trust 2024-2, as Issuing Entity, U.S. Bank Trust Company, National Association, as Indenture Trustee, and U.S. Bank National Association, as Securities Intermediary, dated as of September 27, 2024.
Exhibit 99.2		Custodian Agreement between Ally Bank, as Custodian, and Ally Auto Assets LLC, as Depositor, to be dated as of October 16, 2025.
Exhibit 99.3		Administration Agreement among Ally Auto Receivables Trust 2025-1, as Issuing Entity, Ally Bank, as Administrator, and U.S. Bank Trust Company, National Association, as Indenture Trustee, to be dated as of October 16, 2025.
Exhibit 99.4		Servicing Agreement among Ally Bank, as Servicer, Ally Auto Assets LLC, as Depositor, and Ally Auto Receivables Trust 2025-1, as Issuing Entity, to be dated as of October 16, 2025.
Exhibit 99.5		Asset Representations Review Agreement among Ally Auto Receivables Trust 2025-1, as Issuing Entity, Ally Bank, as Sponsor, and Clayton Fixed Income Services LLC, as Asset Representations Reviewer, to be dated as of October 16, 2025.
Exhibit 99.6		Securities Account Control Agreement among Ally Auto Receivables Trust 2025-1, as Issuing Entity, U.S. Bank Trust Company, National Association, as Indenture Trustee, and U.S. Bank National Association, as Securities Intermediary, to be dated as of October 16, 2025.

SIGNATURES

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.

ALLY AUTO ASSETS LLC By: /s/ ~~Eric~~Jalpesh ~~Bisman~~Patel Name: ~~Eric~~Jalpesh ~~Bisman~~Patel Title: Vice President

Dated: ~~September 27~~October 9, ~~2024~~2025

Form 8-K re: transaction documents and

underwriting agreement

Filing Compare · Ally Auto Assets LLC