Exhibit 10.1

Execution Version

AMENDMENT NO. 5 TO FIRST LIEN CREDIT AGREEMENT

AMENDMENT NO. 5, dated as of July 30, 2025 (this “Amendment”), to the First Lien Credit Agreement dated as of January 31, 2020 (as amended by that certain Amendment No. 1, dated as of February 1, 2021, that certain Amendment No. 2, dated as of May 28, 2021, that certain Amendment No. 3, dated as of June 23, 2023, that certain Amendment No. 4, dated as of October 31, 2024, and as further amended, supplemented, amended and restated or otherwise modified prior to giving effect to this Amendment, the “First Lien Credit Agreement”), among FASTBALL PARENT, INC., a Delaware corporation (“Holdings”), FIRST ADVANTAGE HOLDINGS, LLC, a Delaware limited liability company (the “Borrower”), each lender from time to time party thereto (collectively, the “Lenders” and each, individually, a “Lender”), Bank of America, N.A., as Administrative Agent (in such capacity, the “Administrative Agent”) and Collateral Agent, and the Issuing Banks party thereto from time to time.

WHEREAS, the First Lien Credit Agreement permits the Borrower to obtain Credit Agreement Refinancing Indebtedness from any Lender or Additional Lender in respect of all or any portion of the Term Loans outstanding under the First Lien Credit Agreement in the form of Other Term Loans and Other Term Commitments pursuant to a Refinancing Amendment;

WHEREAS, the Borrower desires, pursuant to Section 2.21 of the First Lien Credit Agreement, to create a new Class of Term B-3 Loans (as defined in the Amended Credit Agreement (as defined below)) under the First Lien Credit Agreement in an aggregate principal amount equal to the aggregate principal amount of Term B-2 Loans (as defined in the First Lien Credit Agreement) outstanding prior to the Amendment No. 5 Effective Date and having the terms, rights and obligations under the Loan Documents as set forth in the First Lien Credit Agreement and Loan Documents, each as amended, or amended and restated, by this Amendment;

WHEREAS, each Term Lender that executes and delivers a Lender Election substantially in the form of Exhibit A hereto (a “Lender Election”) shall be deemed to have consented to this Amendment and shall have elected to either (i) exchange all (or such lesser amount as notified and allocated to it by the Administrative Agent, as determined by the Borrower and the Administrative Agent in their sole direction, with any remaining Term B-2 Loans being repaid) of its Term B-2 Loans outstanding for Term B-3 Loans upon effectiveness of this Amendment, and to thereafter become a Term B-3 Lender (each such Term B-2 Lender making the election described in this clause (i), a “Rollover Amendment No. 5 Term Lender”) or (ii) elect to the prepayment of the full principal amount of its Term B-2 Loans and purchase by way of assignment from the Additional Term B-3 Lender, in accordance with the terms of the Amended Credit Agreement, Term B-3 Loans in an aggregate principal amount equal to the aggregate principal amount of its Term B-2 Loans prepaid (or such lesser amount as notified and allocated to it by the Administrative Agent, as determined by the Borrower and the Administrative Agent in their sole discretion).

WHEREAS, each Person that executes and delivers a counterpart to this Amendment as an Additional Term B-3 Lender (each, an “Additional Term B-3 Lender”, and

collectively, the “Additional Term B-3 Lenders”) will make Term B-3 Loans (the “Additional Term B-3 Loans”) in the amount set forth opposite such Additional Term B-3 Lender’s name on Schedule I hereto to the Borrower, the proceeds of which will be used by the Borrower to repay in full the outstanding principal amount of Non-Exchanged Amendment No. 5 Term Loans (as defined in the Amended Credit Agreement);

WHEREAS, pursuant to Section 9.02 of the First Lien Credit Agreement, the Borrower has requested, and the Revolving Lenders party hereto (collectively constituting all Revolving Lenders as of the Amendment No. 5 Effective Date) have agreed to reduce the Applicable Rate of the Revolving Credit Facility as set forth in the Amended Credit Agreement (as defined below);

WHEREAS, BofA Securities Inc. (“BofA Securities”), Barclays Bank PLC, BMO Capital Markets Corp., Citizens Bank, N.A., HSBC Securities (USA) Inc., Jefferies Finance LLC, JPMorgan Chase Bank, N.A., KKR Capital Markets LLC, RBC Capital Markets1, Stifel, Nicolaus and Company, Incorporated, and Wells Fargo Securities, LLC will act as joint lead arrangers (the “Amendment No. 5 Lead Arrangers”) and joint bookrunners, in each case, for this Amendment and the Amended Credit Agreement.

NOW, THEREFORE, in consideration of the premises and covenants contained herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound hereby, agree as follows:

Section 1.

Defined Terms.

Capitalized terms used but not defined herein shall have the respective meanings assigned to such terms in the Amended Credit Agreement.

Section 2.

Amendments. Effective as of the Amendment No. 5 Effective Date (as defined below), the First Lien Credit Agreement is hereby amended to delete the stricken text (indicated textually in the same manner as the following example: stricken text) and to add the double-underlined text (indicated textually in the same manner as the following example: double-underlined text) as set forth in the pages of the Credit Agreement attached as Annex A hereto (the “Amended Credit Agreement”).

Section 3.

Refinancing Term Loans.

(a)

Pursuant to Section 2.21 of the First Lien Credit Agreement, on the Amendment No. 5 Effective Date, each of the Rollover Amendment No. 5 Term Lenders and the Additional Term B-3 Lenders will make Term B-3 Loans (including Additional Term B-3 Loans) to the Borrower as described in Section 2.02(d) of the Amended Credit Agreement, with the Term B-3 Loans having the terms set forth in the Amended Credit Agreement. The Borrower shall prepay in full the then outstanding principal amount of the Term B-2 Loans, in each case together

1 RBC Capital Markets is a brand name for the capital markets activities of Royal Bank of Canada and its affiliates.

with all accrued and unpaid interest thereon, with the gross cash proceeds of the Term B-3 Loans (including the Additional Term B-3 Loans).

(b)

Each Additional Term B-3 Lender (i) confirms that it has received a copy of the Amended Credit Agreement and the other Loan Documents, together with copies of the financial statements referred to therein and such other documents and information as it has deemed appropriate to make its own credit analysis and decision to enter into this Amendment; (ii) agrees that it will, independently and without reliance upon the Administrative Agent, the Amendment No. 5 Lead Arrangers, any other Additional Term B-3 Lender or any other Lender and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit decisions in taking or not taking action under the Amended Credit Agreement; (iii) appoints and authorizes the Administrative Agent and the Collateral Agent to take such action as agent on its behalf and to exercise such powers and discretion under the Amended Credit Agreement and the other Loan Documents as are delegated to the Administrative Agent and the Collateral Agent by the terms thereof, together with such powers and discretion as are reasonably incidental thereto; and (iv) agrees that it will perform in accordance with their terms all of the obligations which by the terms of the Amended Credit Agreement are required to be performed by it as a Lender.

(c)

Upon (i) the execution of a counterpart of this Amendment by each Additional Term B-3 Lender, the Administrative Agent and the Borrower and (ii) the delivery to the Administrative Agent of a fully executed counterpart (including by way of telecopy or other electronic transmission) hereof, each of the Additional Term B-3 Lenders party to this Amendment shall become Lenders under the Amended Credit Agreement and shall have the respective Additional Term B-3 Commitment set forth on Schedule I hereto, effective as of the Amendment No. 5 Effective Date.

(d)

The Borrowing of the Term B-3 Loans will be a Term SOFR Borrowing with an initial Interest Period beginning on the Amendment No. 5 Effective Date and ending on August 29, 2025.

(e)

This Amendment No. 5 constitutes a Refinancing Amendment in respect of the Term B-2 Loans.

Section 4.

Representations and Warranties.

(a)

To induce the other parties hereto to enter into this Amendment, each of Holdings and the Borrower represents and warrants to each of the Lenders, including the Rollover Amendment No. 5 Term Lenders, the Additional Term B-3 Lenders and the Administrative Agent that, as of the Amendment No. 5 Effective Date and after giving effect to the transactions and amendments to occur on the Amendment No. 5 Effective Date, this Amendment has been duly authorized, executed and delivered by each of Holdings and the Borrower and constitutes, and the Amended Credit Agreement will constitute, its legal, valid and binding obligation, enforceable against each of the Loan Parties in accordance with its terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights generally and subject to general principles of equity, regardless of whether considered in a proceeding in equity or at law.

(b)

Each of Holdings and the Borrower represents and warrants that the representations and warranties of each Loan Party set forth in the Loan Documents are, after giving

effect to this Amendment on the Amendment No. 5 Effective Date, true and correct in all material respects on and as of the Amendment No. 5 Effective Date with the same effect as though made on and as of such date; provided that, to the extent such representations and warranties expressly relate to an earlier date, such representations and warranties were true and correct in all material respects as of such earlier date; provided, further, that any representation or warranty that is qualified as to “materiality,” “Material Adverse Effect” or similar language is true and correct in all respects on the Amendment No. 5 Effective Date or such earlier date, as the case may be.

(c)

The Borrower represents and warrants that, at the time of and immediately after giving effect to this Amendment and the transactions contemplated hereby on the Amendment No. 5 Effective Date, no Default or Event of Default has occurred and is continuing or would result therefrom.

(d)

On the Amendment No. 5 Effective Date, immediately after the consummation of the transactions contemplated under this Amendment to occur on the Amendment No. 5 Effective Date, the Borrower and its Subsidiaries are, on a consolidated basis after giving effect to such transactions, Solvent.

Section 5.

Conditions to Effectiveness of Amendment No. 5.

This Amendment shall become effective on the date on which each of the following conditions is satisfied (the “Amendment No. 5 Effective Date”), and the obligation of the Lenders party hereto to make Term B-3 Loans on the Amendment No. 5 Effective Date is subject to the satisfaction of the following conditions:

(a)

The Administrative Agent (or its counsel) shall have received from (i) the Borrower, (ii) Holdings, (iii) each Lender party hereto and (iv) the Administrative Agent, either (x) counterparts of this Amendment signed on behalf of such parties (including, in the case of each Rollover Amendment No. 5 Term Lender, a Lender Election) or (y) written evidence satisfactory to the Administrative Agent (which may include facsimile or other electronic transmissions of signed signature pages) that such parties have signed counterparts of this Amendment.

(b)

The Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower dated the Amendment No. 5 Effective Date certifying as to the representations and warranties set forth in Sections 4(b) and (c) of this Amendment.

(c)

The Administrative Agent and the Amendment No. 5 Lead Arrangers shall have received a written opinion (addressed to the Administrative Agent and the Lenders party hereto and dated the Amendment No. 5 Effective Date) of Simpson Thacher & Bartlett LLP, New York counsel for the Loan Parties.

(d)

The Administrative Agent shall have received a copy of (i) each Organizational Document of each Loan Party certified, to the extent applicable, as of a recent date by the applicable Governmental Authority (or a representation that such Organizational Documents have not been amended since the date most recently provided to the Administrative Agent), (ii) signature and incumbency certificates of the Responsible Officers of each Loan Party executing the Loan Documents to which it is a party (or a representation that such Responsible Officers are the same as those whose signature and incumbency certificates were most recently delivered to the Administrative Agent), (iii) resolutions of the Board of Directors and/or similar

governing bodies of each Loan Party approving and authorizing the execution, delivery and performance of this Amendment (or a representation that the resolutions most recently provided to the Administrative Agent have not been rescinded), certified as of the Amendment No. 5 Effective Date by its secretary, an assistant secretary or a Responsible Officer as being in full force and effect without modification or amendment, and (iv) a good standing certificate (to the extent such concept exists) from the applicable Governmental Authority of each Loan Party’s jurisdiction of incorporation, organization or formation.

(e)

The Administrative Agent shall have received a Borrowing Request in a form reasonably acceptable to the Administrative Agent requesting that the Lenders make the Additional Term B-3 Loans to the Borrower on the Amendment No. 5 Effective Date.

(f)

Each Loan Party shall have entered into the Amendment No. 5 Reaffirmation Agreement.

(g)

The Administrative Agent and the Lenders shall have received, at least two Business Days prior to the Amendment No. 5 Effective Date, all documentation and other information about the Borrower and the Guarantors that shall have been reasonably requested by the Administrative Agent and Lenders in writing at least 10 Business Days prior to the Amendment No. 5 Effective Date and that the Administrative Agent reasonably determines is required by United States regulatory authorities under applicable “know your customer” and anti-money laundering rules and regulations, including without limitation the PATRIOT Act. To the extent the Borrower qualifies as a “legal entity customer” under 31 C.F.R. § 1010.230, it shall deliver a certification regarding beneficial ownership as required by the Beneficial Ownership Regulation (the “Beneficial Ownership Certification”) in relation to the Borrower to any Lender that has requested such Beneficial Ownership Certification (which request is made through BofA Securities (or its designated affiliate) to the Borrower); provided that BofA Securities (or its designated affiliate) has provided the Borrower such Lender’s electronic delivery requirements at least five Business Days prior to the Amendment No. 5 Effective Date (it being agreed that, upon the execution and delivery by such Lender of its signature page to this Amendment, the conditions set forth in this clause shall be deemed to be satisfied with respect to such Lender).

(h)

The Administrative Agent shall have received a certificate (substantially consistent with the certificate delivered on the Original Closing Date) from a Financial Officer of the Borrower certifying that the Borrower and its Subsidiaries on a consolidated basis after giving effect to the Transactions are Solvent.

(i)

The Borrower shall have obtained Commitments in respect of Term B-3 Loans in an aggregate amount equal to $2,164,537,500.00. The Borrower shall have paid in full, or substantially concurrently with the satisfaction of the other conditions precedent set forth in this Section 5 shall pay in full, (i) all of the Term B-2 Loans (giving effect to any exchange thereof for Term B-3 Loans pursuant to the terms hereof) and (ii) all accrued and unpaid fees and interest with respect to the Term B-2 Loans (including any such Term B-2 Loans that will be exchanged for Term B-3 Loans on the Amendment No. 5 Effective Date).

(j)

The Administrative Agent shall have received, in immediately available funds, payment or reimbursement of all reasonable and documented costs, fees, out-of-pocket expenses, compensation and other amounts then due and payable in connection with this Amendment, including, to the extent invoiced at least three Business Days prior to the Amendment

No. 5 Effective Date, the reasonable fees, charges and disbursements of counsel for the Administrative Agent and the Amendment No. 5 Lead Arrangers.

(k)

The representations and warranties set forth in Sections 4(a), (b) and (c) of this Amendment shall be true and correct.

Section 6.

Tax Matters. On and after the Amendment No. 5 Effective Date, the Term B-3 Loans (whether issued for cash or in exchange for Term B-2 Loans) will be treated as a single tranche of indebtedness for U.S. federal income tax purposes.

Section 7.

Governing Law. This Amendment shall be construed in accordance with and governed by the law of the State of New York. The provisions of Sections 9.09 and 9.10 of the First Lien Credit Agreement shall apply to this Amendment to the same extent as if fully set forth herein.

Section 8.

Costs and Expenses. The Borrower agrees to reimburse the Administrative Agent for its reasonable out of pocket expenses in connection with this Amendment and the transactions contemplated hereby, including the reasonable fees, charges and disbursements of Cahill Gordon & Reindel LLP, counsel for each of the Administrative Agent and the Amendment No. 5 Lead Arrangers, respectively.

Section 9.

Counterparts. This Amendment may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which when so executed and delivered shall be deemed an original, but all such counterparts together shall constitute but one and the same instrument. Delivery of any executed counterpart of a signature page of this Amendment by facsimile transmission or other electronic imaging means shall be effective as delivery of a manually executed counterpart hereof. Delivery of an executed signature page of this Amendment by facsimile transmission or electronic transmission including any electronic signature complying with the New York Electronic Signatures and Records Act (N.Y. State Tech. §§ 301-309), as amended from time to time, or other applicable law or other transmission method, and the parties hereto agree that any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

Section 10.

Effect of Amendment.

(a)

Except as expressly set forth herein, this Amendment shall not by implication or otherwise limit, impair, constitute a waiver of, or otherwise affect the rights and remedies of, the Lenders or the Agents under the First Lien Credit Agreement or any other Loan Document, and shall not alter, modify, amend or in any way affect any of the terms, conditions, obligations, covenants or agreements contained in the First Lien Credit Agreement or any other Loan Document, all of which are hereby ratified and affirmed in all respects and shall continue in full force and effect. The parties hereto acknowledge and agree that the amendment of the First Lien Credit Agreement pursuant to this Amendment and all other Loan Documents amended and/or executed and delivered in connection herewith shall not constitute a novation of the First Lien Credit Agreement and the other Loan Documents as in effect prior to the Amendment No. 5 Effective Date. Nothing herein shall be deemed to establish a precedent for purposes of interpreting the provisions of the First Lien Credit Agreement or entitle any Loan Party to a consent to, or a waiver, amendment, modification or other change of, any of the terms, conditions, obligations, covenants or agreements contained in the First Lien Credit Agreement or any other Loan Document in similar or different circumstances. This Amendment shall apply to and be

effective only with respect to the provisions of the First Lien Credit Agreement and the other Loan Documents specifically referred to herein.

(b)

On and after the Amendment No. 5 Effective Date, each reference in the First Lien Credit Agreement to “this Agreement”, “hereunder”, “hereof”, “herein” or words of like import, and each reference to the First Lien Credit Agreement, “thereunder”, “thereof”, “therein” or words of like import in any other Loan Document, shall be deemed a reference to the First Lien Credit Agreement, as amended hereby. This Amendment shall constitute a Refinancing Amendment entered into pursuant to Section 2.21 of the First Lien Credit Agreement and a “Loan Document” for all purposes of the First Lien Credit Agreement and the other Loan Documents.

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IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed as of the date first above written.


FASTBALL PARENT, INC., as Holdings

By:
	/s/ Steven Marks
	Name: Steven Marks
	Title: Chief Financial Officer
FIRST ADVANTAGE HOLDINGS, LLC, as the Borrower

By:
	/s/ Steven Marks
	Name: Steven Marks
	Title: Chief Financial Officer

[Signature Page To Amendment No. 5]

Bank of America, N.a., as Administrative Agent

By: /s/ Erik Truette

Name: Erik Truette

Title: Vice President

FIRST ADVANTAGE CORP 8-K