SUPPLEMENTAL INDENTURE TO BE DELIVERED BY SUBSEQUENT GUARANTORS

Exhibit 4.2

SUPPLEMENTAL INDENTURE
TO BE DELIVERED BY SUBSEQUENT GUARANTORS

Supplemental Indenture (this “Supplemental Indenture”), dated as of March 20, 2023, among the entities listed on Schedule I hereto (the “Guaranteeing Entities” and each, a “Guaranteeing Entity”), Xxxxxxx Bros. Holdings Inc., a Washington corporation (the “Company”), and U.S. Bank Trust Company, National Association, as trustee (in such capacity, the “Trustee”) and notes collateral agent (in such capacity, the “Notes Collateral Agent”) under the Indenture referred to below.

W I T N E S S E T H

WHEREAS, the Company has heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as of March 15, 2023, providing for the issuance of 6.750% Senior Secured Notes due 2028 (the “Notes”);

WHEREAS, the Indenture provides that under certain circumstances each Guaranteeing Entity shall execute and deliver to the Trustee a supplemental indenture pursuant to which each Guaranteeing Entity shall unconditionally guarantee all of the Company’s Obligations under the Notes and the Indenture on the terms and conditions set forth therein (the “Note Guarantee”); and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, each Guaranteeing Entity and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

1.       Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2.       Agreement to Guarantee. Each Guaranteeing Entity hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Indenture including but not limited to Article 10 thereof.

3.       No Recourse Against Others. No director, officer, employee, incorporator or stockholder of the Company or any Guarantor, as such, will have any liability for any obligations of the Company or the Guarantors under the Notes, this Indenture, the Note Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities Laws.

4.       NEW YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

5.       WAIVER OF TRIAL BY JURY. THE COMPANY, EACH GUARANTEEING ENTITY AND THE TRUSTEE HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVE TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS SUPPLEMENTAL INDENTURE, THE INDENTURE, THE NOTES, THE NOTE GUARANTEES AND FOR ANY COUNTERCLAIM THEREIN.

6.       Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

7.       Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

8.       The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by each Guaranteeing Entity and the Company.

2

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed and attested, all as of the date first above written.

	Xxxxxxx Bros. Holdings Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. Auctioneers (Canada) ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. Holdings ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. Properties Ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxx services canada ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	ironplanet canada, ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

3

	Xxxxxxx Bros. financial services ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. finance ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. real estate services ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	ironplanet, Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. auctioneers (america) inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. Properties Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	xxxxx appraisals llc
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Manager

4

	xxxxx services llc
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Manager

	assetnation, Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	ironplanet motors, llc
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Manager

	xxxxx energy & equipment auctioneers, llc
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Manager

	Rba. Holdings Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. asset solutions Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

5

	Xxxxxxx Bros. financial services (america) Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	xxxxx analytics llc
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Manager

	xxxxx sales llc
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Manager

	salvagesale mexico holding llc
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Manager

	smartequip, Inc.
	By:	/s/ Xxxx Xxxxxx
		Name: Xxxx Xxxxxx
		Title: Director

	ironplanet mexico, s. de x.x. de c.v.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

6

	Xxxxxxx Bros. uk limited
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. uk Holdings ltd
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	ironplanet uk limited
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	ironplanet limited
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. Holdings b.v.
	By:	/s/ Xxxxx xx Xxxxxxxx
		Name: Xxxxx xx Xxxxxxxx
		Title: Director

	Xxxxxxx Bros. properties b.v.
	By:	/s/ Xxxxx xx Xxxxxxxx
		Name: Xxxxx xx Xxxxxxxx
		Title: Director

7

	Xxxxxxx Bros. shared services b.v.
	By:	/s/ Xxxxx xx Xxxxxxxx
		Name: Xxxxx xx Xxxxxxxx
		Title: Director

	Xxxxxxx Bros. B.V.
	By:	/s/ Xxxxx xx Xxxxxxxx
		Name: Xxxxx xx Xxxxxxxx
		Title: Director

	Xxxxxxx Bros. auctioneers pty ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. properties pty ltd.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Director

	Xxxxxxx Bros. properties japan K.K.
	By:	/s/ Xxxxxx Xxxxxx
		Name: Xxxxxx Xxxxxx
		Title: Director

	Xxxxxxx Bros. auctioneers (japan) kabushiki kaisha
	By:	/s/ Xxxxxx Xxxxxx
		Name: Xxxxxx Xxxxxx
		Title: Director

8

	iaa Holdings, LLC
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Secretary

	iaa Holdings, Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Secretary

	automotive recovery services, Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Secretary

	axle Holdings, Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Secretary

	insurance auto auctions, Inc.
	By:	/s/ Xxxxxx Xxxx
		Name: Xxxxxx Xxxx
		Title: Secretary

	synetiq Holdings limited
	By:	/s/ Xxxxxx Xxxxxxx
		Name: Xxxxxx Xxxxxxx
		Title: Managing Director

9

	U.S. Bank Trust Company, National Association, as Trustee
	By:	/s/ Xxxxx X XxXxxxxx
		Name: Xxxxx X. XxXxxxxx
		Title: Vice President

10

Schedule I

Additional Guarantors

1. Xxxxxxx Bros. Auctioneers (Canada) Ltd., a Canadian corporation

2. Xxxxxxx Bros. Holdings Ltd., a Canadian corporation

3. Xxxxxxx Bros. Properties Ltd., a Canadian corporation

4. Xxxxx Services Canada Ltd., a Canadian corporation

5. IronPlanet Canada Ltd., a Canadian corporation

6. Xxxxxxx Bros. Financial Services Ltd., a Canadian corporation

7. Xxxxxxx Bros. Finance Ltd., a Canadian corporation

8. Xxxxxxx Bros. Real Estate Services Ltd., a Canadian corporation

9. IronPlanet, Inc., a Delaware corporation

10. Xxxxxxx Bros. Auctioneers (America) Inc., a Washington corporation

11. Xxxxxxx Bros. Properties Inc., a Washington corporation

12. Xxxxx Appraisals LLC, a California limited liability company

13. Xxxxx Services LLC, a California limited liability company

14. AssetNation, Inc., a Delaware corporation

15. IronPlanet Motors, LLC, a Delaware limited liability company

16. Xxxxx Energy & Equipment Auctioneers, LLC, a Texas limited liability company

17. RBA Holdings Inc., a Delaware corporation

18. Xxxxxxx Bros. Asset Solutions Inc., a Florida corporation

19. Xxxxxxx Bros. Financial Services (America) Inc., a Nevada corporation

20. Xxxxx Analytics LLC, a California limited liability company

21. Xxxxx Sales LLC, a California limited liability company

22. SalvageSale Mexico Holding LLC, a Delaware limited liability company

23. SmartEquip, Inc., a Delaware corporation

24. IronPlanet Mexico, S. de X.X. de C.V., a Mexican sociedad de responsabilidad limitada de capital variable

25. Xxxxxxx Bros. UK Limited, a private limited company incorporated under the laws of England and Wales

26. Xxxxxxx Bros. UK Holdings Ltd., a company incorporated under the laws of England and Wales

27. IronPlanet UK Limited, a private limited company incorporated under the laws of England and Wales

28. IronPlanet Limited, an Irish private company limited by shares

29. Xxxxxxx Bros. Holdings B.V., a private company with limited liability (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of The Netherlands

30. Xxxxxxx Bros. Properties B.V., a private company with limited liability (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of The Netherlands

31. Xxxxxxx Bros. Shared Services B.V., a private company with limited liability (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of The Netherlands

32. Xxxxxxx Bros. B.V., a private company with limited liability (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of The Netherlands

33. Xxxxxxx Bros. Auctioneers Pty Ltd., an Australian private company

11

34. Xxxxxxx Bros. Properties Pty Ltd., an Australian private company

35. Xxxxxxx Bros. Properties Japan K.K., a Japanese corporation

36. Xxxxxxx Bros. Auctioneers (Japan) Kabushiki Kaisha, a Japanese corporation

37. IAA Holdings, LLC, a Delaware limited liability company

38. IAA Holdings, Inc., a Delaware corporation

39. Automotive Recovery Services, Inc., an Indiana corporation

40. Axle Holdings, Inc., a Delaware corporation

41. Insurance Auto Auctions, Inc., an Illinois corporation

42. Synetiq Holdings Limited, a private limited company incorporated under the laws of England and Wales

12