# SILVERBOX SECURITIES LLC X-17A-5 (2026-02-09) — Broker-dealer annual report

- Company: SILVERBOX SECURITIES LLC
- Form: X-17A-5
- Filed: 2026-02-09
- Period: 2025-12-31
- Accession: 0001988646-26-000001
- CIK: 1988646
- File #: 8-71136
- Type: Broker-dealer
- Material weakness: No
- Auditor: Cropper Accountancy Corporations
- Auditor location: Walnut Creek, CA
- Contact: Elizabeth Collins
- Phone: 415-246-9169
- Email: de@sbcap.com
- Website: sbcap.com
- Signed by: Daniel E. Esters (CFO & CCO)

Original filing: https://www.sec.gov/Archives/edgar/data/1988646/000198864626000001/2025silverboxaudit.pdf

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FINANCIAL STATEMENTS

DECEMBER 31, 2025

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#### **UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549**

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# **ANNUAL REPORTS FORM X-17A-5 PART Ill**

| SEC FILE NUMBER |  |
|-----------------|--|
|                 |  |

8-71136

**FACING PAGE** 

**Information Required Pursuant to Rules 17a-5, 17a-12, and 18a-7 under the Securities Exchange Act of 1934** 

|                                                                                                                                                                     |                                                            |                                         | __                         |  |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------|-----------------------------------------|----------------------------|--|
| FILING FOR THE PERIOD BEGINNING                                                                                                                                     | ___<br>____<br>0_1_/0_1_/2_5                               | AND ENDING                              | ____<br>1_2_/3_1_/2_5<br>_ |  |
|                                                                                                                                                                     | MM/DD/VY                                                   |                                         | MM/DD/VY                   |  |
|                                                                                                                                                                     | A. REGISTRANT IDENTIFICATION                               |                                         |                            |  |
| NAME OF FIRM: SilverBox Securities LLC                                                                                                                              |                                                            |                                         |                            |  |
| TYPE OF REGISTRANT (check all applicable boxes):<br>D Security-based swap dealer<br>~ Broker-dealer<br>□ Check here if respondent is also an OTC derivatives dealer |                                                            | D Major security-based swap participant |                            |  |
| ADDRESS OF PRINCIPAL PLACE OF BUSINESS: (Do not use a P.O. box no.)                                                                                                 |                                                            |                                         |                            |  |
| 511 River Street E, Box 2420                                                                                                                                        |                                                            |                                         |                            |  |
|                                                                                                                                                                     | (No. and Street)                                           |                                         |                            |  |
| Ketchum                                                                                                                                                             | Idaho                                                      |                                         | 83340                      |  |
| (City)                                                                                                                                                              | (State)                                                    |                                         | (Zip Code)                 |  |
| PERSON TO CONTACT WITH REGARD TO THIS FILING                                                                                                                        |                                                            |                                         |                            |  |
| Daniel E. Esters                                                                                                                                                    | (310) 351-2476                                             |                                         | de@sbcap.com               |  |
| (Name)                                                                                                                                                              | (Area Code -Telephone Number)                              | (Email Address)                         |                            |  |
|                                                                                                                                                                     | B. ACCOUNTANT IDENTIFICATION                               |                                         |                            |  |
| INDEPENDENT PUBLIC ACCOUNTANT whose reports are contained in this filing*<br>Cropper Accountancy Corporation                                                        |                                                            |                                         |                            |  |
|                                                                                                                                                                     | (Name - if individual, state last, first, and middle name) |                                         |                            |  |
| 2700 Ygnacio Valley Blvd , Suite 270                                                                                                                                | Walnut Creek                                               | California                              | 94598                      |  |
| (Address)                                                                                                                                                           | (City)                                                     | (State)                                 | (Zip Code)                 |  |
| March 4 2009                                                                                                                                                        |                                                            |                                         | 3381                       |  |
|                                                                                                                                                                     |                                                            |                                         |                            |  |
|                                                                                                                                                                     | FOR OFFICIAL USE ONLY                                      |                                         |                            |  |
|                                                                                                                                                                     |                                                            |                                         |                            |  |
| * Claims for exemption from the requirement that the annual reports be covered by the reports of an independent public                                              |                                                            |                                         |                            |  |

accountant must be supported by a statement of facts and circumstances relied on as the basis of the exemption . See 17 CFR 240.17a-S(e)(l)(ii), if applicable.

**Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid 0MB control number.** 

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#### **OATH OR AFFIRMATION**

I, Daniel E. Esters swear (or affirm) that, to the best of my knowledge and belief, the financial report pertaining to the firm of SilverBox Securities LLC as of

\_\_\_\_\_\_\_\_\_ D\_e\_c\_e\_m\_ b\_e\_r \_3\_1~ 2025 , is true and correct. I further swear (or affirm) that neither the company nor any partner, officer, director, or equivalent person, as the case may be, has any proprietary interest in any account classified solely as that of a customer.

Signature:

Title: CFO & CCO

Notary Public

### **This filing\*\* contains (check all applicable boxes):**

- 0 (a) Statement of financial condition.
- □ (b) Notes to consolidated statement of financial condition.
- ~ (c) Statement of income (loss) or, if there is other comprehensive income in the period(s) presented, a statement of comprehensive income (as defined in § 210.1-02 of Regulation S-X).
- ~ (d) Statement of cash flows.
- IYl' (e) Statement of changes in stockholders' or partners' or sole proprietor's equity.
- □ (f) Statement of changes in liabilities subordinated to claims of creditors.
- ~ (g) Notes to consolidated financial statements.
- <sup>521</sup>' (h) Computation of net capital under 17 CFR 240.15c3-1 or 17 CFR 240.18a-1, as applicable.
- □ (i) Computation of tangible net worth under 17 CFR 240.18a-2.
- ~ (j) Computation for determination of customer reserve requirements pursuant to Exhibit A to 17 CFR 240.15c3-3.
- □ (k) Computation for determination of security-based swap reserve requirements pursuant to Exhibit B to 17 CFR 240.15c3-3 or Exhibit A to 17 CFR 240.18a-4, as applicable.
- □ (I) Computation for Determination of PAB Requirements under Exhibit A to§ 240.15c3-3.
- M (m) Information relating to possession or control requirements for customers under 17 CFR 240.15c3-3.
- □ (n) Information relating to possession or control requirements for security-based swap customers under 17 CFR 240.15c3-3(p)(2) or 17 CFR 240.18a-4, as applicable.
- <sup>521</sup>' (o) Reconciliations, including appropriate explanations, of the FOCUS Report with computation of net capital or tangible net worth under 17 CFR 240.15c3-1, 17 CFR 240.18a-1, or 17 CFR 240.18a-2, as applicable, and the reserve requirements under 17 CFR 240.15c3-3 or 17 CFR 240.18a-4, as applicable, if material differences exist, or a statement that no material differences exist.
- □ (p) Summary of financial data for subsidiaries not consolidated in the statement of financial condition.
- ~ (q) Oath or affirmation in accordance with 17 CFR 240.17a-5, 17 CFR 240.17a-12, or 17 CFR 240.18a-7, as applicable.
- □ (r) Compliance report in accordance with 17 CFR 240.17a-5 or 17 CFR 240.18a-7, as applicable.
- IYl' (s) Exemption report in accordance with 17 CFR 240.17a-5 or 17 CFR 240.18a-7, as applicable.
- □ (t) Independent public accountant's report based on an examination of the statement of financial condition.
- ~ (u) Independent public accountant's report based on an examination of the financial report or financial statements under 17 CFR 240.17a-5, 17 CFR 240.18a-7, or 17 CFR 240.17a-12, as applicable.
- □ (v) Independent public accountant's report based on an examination of certain statements in the compliance report under 17 CFR 240.17a-5 or 17 CFR 240.18a-7, as applicable.
- M (w) Independent public accountant's report based on a review of the exemption report under 17 CFR 240.17a-5 or 17 CFR 240.18a-7, as applicable.
- □ (x) Supplemental reports on applying agreed-upon procedures, in accordance with 17 CFR 240.15c3-1e or 17 CFR 240.17a-12, as applicable.
- □ (y) Report describing any material inadequacies found to exist or found to have existed since the date of the previous audit, or a statement that no material inadequacies exist, under 17 CFR 240.17a-12(k). □ (z) Other:-------------------------------------
- 
- *\*\*To request confidential treatment of certain portions of this filing, see 17 CFR 240.17a-5(e){3} or 17 CFR 240.18a-7{d}{2}, as applicable.*

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# **TABLE OF CONTENTS**

| Report of Independent Registered Public Accounting Firm                                                                                                                        | 1   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----|
| Statement of Financial Condition                                                                                                                                               | 2   |
| Statement of Operations                                                                                                                                                        | 3   |
| Statement of Changes in Member's Equity                                                                                                                                        | 4   |
| Statement of Cash Flows                                                                                                                                                        | 5   |
| Notes to the Financial Statements                                                                                                                                              | 6-9 |
| Supplemental Information                                                                                                                                                       | 10  |
| Schedule I:                                                                                                                                                                    | 11  |
| Computation of Net Capital for Brokers and Dealers Pursuant<br>to Rule 1 Sc3-1 Under the Securities Exchange Act of 1934 ("SEA")                                               |     |
| Reconciliation of Computation of Net Capital Under SEA Rule 15c3-1                                                                                                             |     |
| Schedule II:                                                                                                                                                                   | 12  |
| Computation for Determination of the Reserve Requirements<br>and Information Relating to Possession or Control<br>Requirements for Brokers and Dealers Pursuant to Rule 15c3-3 |     |
| Review Report of the Independent Public Accounting Firm                                                                                                                        | 13  |
| SEA Rule 15c3-3 Exemption Report                                                                                                                                               | 14  |

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## REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Member of SilverBox Securities LLC

#### **Opinion on the Financial Statements**

We have audited the accompanying statement of financial condition of Silver Box Securities LLC as of December 31, 2025, the related statements of operations, changes in member's equity, and cash flows for the year then ended, and the related notes and schedules (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of SilverBox Securities LLC as of December 31 , 2025, and the results of its operations and its cash flows for the year ended December 31 , 2025, in conformity with accounting principles generally accepted in the United States of America.

### **Basis for Opinion**

These financial statements are the responsibility of SilverBox Securities LLC's management. Our responsibility is to express an opinion on SilverBox Securities LLC's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to SilverBox Securities LLC in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.

### **Auditor's Report on Supplemental Information**

The Schedule I - Computation of Net Capital for Brokers and Dealers Pursuant to Rule 15c3-1 Under the Securities Exchange Act of 1943, and Schedule II - Computation for Determination of the Reserve Requirements and Information Relating to Possession or Control Requirements for Brokers and Dealers Pursuant to Rule 15c3-3 has been subjected to audit procedures performed in conjunction with the audit of SilverBox Securities LLC's financial statements. The supplemental information is the responsibility of SilverBox Securities LLC's management. Our audit procedures included determining whether the supplemental information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, including its form and content, is presented in conformity with 17 C.F.R. §240.17a-5. In our opinion, the supplemental information listed above is fairly stated, in all material respects, in relation to the financial statements as a whole.

(}J,eev ~ ~wJ<.\_\_

CROPPER ACCOUNTANCY CORPORATION We have served as SilverBox Securities LLC's auditor since 2024. Walnut Creek, California January 16, 2026

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#### **STATEMENT OF FINANCIAL CONDITION DECEMBER 31, 2025**

#### **ASSETS**

| Cash             | \$<br>29,153 |
|------------------|--------------|
| Prepaid expenses | 7,288        |
| Total assets     | \$<br>36,441 |

#### **LIABILITIES AND MEMBER'S EQUITY**

| Labilities                            |              |
|---------------------------------------|--------------|
| Accounts payable                      | \$<br>1,038  |
| Due to member                         | 12,586       |
| Total liabilities                     | 13,624       |
|                                       |              |
| Member's equity                       | 22,817       |
| Total liabilities and member's equity | \$<br>36,441 |

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#### **STATEMENT OF OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 2025**

| REVENUE                       |                |
|-------------------------------|----------------|
| Investment banking fee        | \$<br>25,000   |
| Total revenue                 | 25,000         |
| EXPENSES                      |                |
| Professional fees             | 34,701         |
| Technology and communications | 16,056         |
| Insurance                     | 13,528         |
| Other operating expenses      | 4,371          |
| Total expenses                | 68,656         |
| Net loss                      | \$<br>~43,656} |

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### **STATEMENT OF CHANGES IN MEMBER'S EQUITY FOR THE YEAR ENDED DECEMBER 31, 2025**

| Member's equity, as of January 1, 2025   | \$<br>51,473  |
|------------------------------------------|---------------|
| Contributions                            | 15,000        |
| Net loss                                 | (43,656)      |
| Member's equity, as of December 31, 2025 | \$<br>22,81 7 |

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#### **STATEMENT OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2025**

| CASH FLOWS FROM OPERATING ACTIVITIES<br>Net loss                                   | \$<br>(43,656)   |
|------------------------------------------------------------------------------------|------------------|
| Adjustments to reconcile net loss<br>to net cash provided by operating activities: |                  |
| (Increase) decrease in:<br>Prepaid expenses                                        | (5,166)          |
| Increase (decrease) in:<br>Accounts payable<br>Due to member                       | (21 7)<br>12,586 |
| Net cash provided by operating activities                                          | (36,453)         |
| CASH FLOWS FROM FINANCING ACTIVITIES<br>Contributions                              | 15,000           |
| Net cash provided by financing activities                                          | 15,000           |
| Net decrease in cash                                                               | (21,453)         |
| Cash, beginning of year                                                            | 50,606           |
| Cash, end of year                                                                  | \$<br>29,153     |

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## **NOTES TO THE FINANCIAL STATEMENTS DECEMBER 31, 2025**

#### **1. The Company**

SilverBox Securities LLC (the "Company") was organized as a Delaware limited liability company on June 2, 2023. The Company is located in Ketchum, Idaho and is owned by its sole member, SilverBox Capital LLC ("Member"). As a limited liability company, the liability of Member is limited to the value of the membership interest. The Company is a securities broker dealer and registered with the Securities and Exchange Commission ("SEC") on March 1, 2024 and is a member of the Financial Industry Regulatory Authority ("FINRA"). The Company assists companies in raising capital through the private placement of securities and provides advisory services related to mergers and acquisitions.

#### **2. Significant Accounting Policies**

#### *Single Reportable Segment*

The Company is engaged in a single line of business as a securities broker-dealer which is comprised of investment banking services described in Note 4. The Company has identified its Chief Financial Officer as the chief operating decision maker **("CODM"),** who uses net income to evaluate the results of the business, predominantly in the forecasting process, to manage the Company. Additionally, the **CODM** use excess net capital (see Note 6), which is not a measure of profit and loss, to make operational decisions while maintaining capital adequacy, such as whether to maintain profits or pay distributions. The Company's operations constitute a single operating segment and therefore, a single reportable segment, because the **CODM** manages the business activities using information of the Company as a whole. The accounting policies used to measure the profit and loss of the segment are the same as those described in the policies listed below.

## *Basis of Accounting*

The accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP").

## *Use of Estimates*

The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and may have an impact on future periods.

## *Fair Value of Financial Instruments*

Unless otherwise indicated, the fair values of all reported assets and liabilities that represent financial instruments approximate the carrying values of such amounts. The Company has no financial instruments required to be reported at fair value on a recurring basis.

#### *Cash and Cash Equivalents*

The Company considers all demand deposits held in banks and certain highly liquid investments with original maturities of three months or less, other than those held for sale in the ordinary course of business, to be cash equivalents. No cash equivalents were held as of December 31, 2025.

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## **NOTES TO THE FINANCIAL STATEMENTS DECEMBER 31, 2025**

#### **2. Significant Accounting Policies** *(continued)*

#### *Accounts Receivable*

Accounts receivable represents amounts that have been earned and billed to clients in accordance with the terms of the Company's engagement letters with respective clients that have not yet been collected. The Company accounts for estimated credit losses on financial assets measured at an amortized cost basis in accordance with FASB ASC 326-20, Financial Instruments - Credit Losses. F ASB ASC 326-20 requires the Company to estimate expected credit losses over the life of its financials assets as of the reporting date based on relevant information about past events, current conditions, and reasonable and supportable forecasts.

The Company records the estimate of expected credit losses as an allowance for credit losses. For financial assets measured at an amortized cost basis the allowance for credit losses is reported as a valuation account on the balance sheet that is deducted from the asset's amortized cost basis. Changes in the allowance for credit losses are reported as credit loss expense on the Statement of Operations. There were no credit losses during 2025, and as of December 31, 2025, there were no amounts receivable.

### *Income Taxes*

The Company is a single member limited liability company and is treated as a disregarded entity for tax purposes. In lieu of income taxes, the Company passes 100% of its taxable income and expenses to the Member. Therefore, no provision or liability for federal or state income taxes is included in these financial statements.

### **3. Related Party Transactions**

On July 12, 2023, the Company entered into an Expense Sharing Agreement ("Agreement") with Member, a company under common control. Member pays certain overhead expenses for the Company for which it is reimbursed by the Company. For the year ended December 31, 2025, the Company reimbursed Member \$16,056 of such costs. However, per the Agreement, the Company is not obligated to reimburse Member. As of December 31, 2025, \$12,586 is due to Member.

For year ended December 31, 2024, the Company acted as independent financial advisor in connection with a public offering of a company under common control. The Company earned a \$25,000 success fee for its services which is included in investment banking fees on the Statement of Income.

The Company's results of operations and financial position could differ significantly from those that would have been obtained if the entities were autonomous.

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## **NOTES TO THE FINANCIAL STATEMENTS DECEMBER 31, 2025**

#### **4. Revenue from Contracts with Customers**

Revenue from contracts with customers is recognized when, or as, the Company satisfies performance obligations by transferring the promised goods or services to the customers. A good or service is transferred to a customer when, or as, the customer obtains control of that good or service. A performance obligation may be satisfied over time or at a point in time. Revenue from a performance obligation satisfied over time is recognized by measuring progress in satisfying the performance obligation in a manner that depicts the transfer of the goods or services to the customer. Revenue from a performance obligation satisfied at a point in time is recognized at the point in time when it is determined the customer obtains control over the promised good or service. The amount of revenue recognized reflects the consideration the Company expects to be entitled to in exchange for those promised goods or services (i.e., the "transaction price"). In determining the transaction price, the Company considers multiple factors, including the effects of variable consideration. Variable consideration is included in the transaction price only to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur and when the uncertainties with respect to the amount are resolved. In determining when to include variable consideration in the transaction price, the Company considers the range of possible outcomes, the predictive value of past experiences, the time period of when uncertainties expect to be resolved and the amount of consideration that is susceptible to factors outside of the Company's influence, such as market volatility or the judgment and actions of third parties.

The following provides detailed information on the recognition of revenues from contracts with customers:

#### *Investment Banking Fees*

Revenue is generated from fees earned on investment banking advisory services provided in connection with capital raising, merger, acquisition and restructuring transactions. Investment banking revenue can be both fixed and variable and can be recognized over time and at a point in time. Retainer fees from investment banking advisory engagements are recognized over time using a time elapsed measure of progress as the Company's clients simultaneously receive and consume the benefits of those services as they are provided, or are recognized at a point in time when the related performance obligation is complete. Success fees are recognized at a point in time when the transaction is complete since the related performance obligation has been satisfied upon completion.

For the year ended December 31, 2025, there was one \$25,000 success fee which is presented as investment banking fee on the Statement of Operations.

#### *Contract Balances*

Income is recognized upon completion of the related performance obligation and when an unconditional right to payment exists. The timing of revenue recognition may differ from the timing of customer payments. Fees received prior to the completion of the performance obligation are recorded as deferred revenue on the statement of financial condition until such time when the performance obligation is met. Deferred revenue primarily relates to retainer fees received in investment banking engagements. Deferred revenue was \$0 at January 1, 2025 and December 31, 2025.

Alternatively, a receivable is recognized when a performance obligation is met prior to receiving payment by the customer. Receivables related to revenue from a contract with a customer totaled \$0 as of January 1, 2025 and December 31, 2025.

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## **NOTES TO THE FINANCIAL STATEMENTS DECEMBER 31, 2025**

#### **4. Revenue from Contracts with Customers** *(continued)*

#### *Contract Costs*

Expenses associated with investment banking advisory engagements are deferred only to the extent they are explicitly reimbursable by the client and the related revenue is recognized upon completion of the performance obligations. All other investment banking advisory related expenses are expensed as incurred.

#### **5. Concentration of Credit Risk**

The Company maintains its cash in bank deposit accounts which, at times, may have exceeded federally insured limits during the year.

For the year ended December 31, 2025, 100% of the investment banking fee was earned from one customer.

#### **6. Commitments and Contingencies**

Management is unaware of any commitments or contingencies that would materially affect the Company financials at December 31, 2025 and through the date of this report.

#### **7. Net Capital Requirements**

The Company is subject to the Uniform Net Capital Rule (Rule 15c3-1) under the Securities Exchange Act of 1934, which requires the maintenance of minimum net capital and requires the ratio of aggregate indebtedness to net capital both as defined shall not exceed 15 to 1. As of December 31, 2025, the Company had net capital of \$15,529 which was \$10,529 in excess of its required capital.

#### **8. Subsequent Events**

Management has evaluated subsequent events for disclosure and/ or recogrutton in the financial statements through the date that the financial statements were available to be issued, which date was the date of the Report of Independent Registered Public Accounting Firm and noted no events requiring disclosure or recognition.

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# SUPPLEMENTAL INFORMATION

# PURSUANT TO RULE 17a-5 OF THE SECURITIES EXCHANGE ACT

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### **SCHEDULE I**

# **COMPUTATION OF NET CAPITAL FOR BROKERS AND DEALERS PURSUANT TO RULE 15c3-1 UNDER THE SECURITIES EXCHANGE ACT OF 1934 ("SEA") AS OF DECEMBER 31, 2025**

#### **NET CAPITAL**

| Total member's equity                                     | \$<br>22,817 |
|-----------------------------------------------------------|--------------|
| Deductions and/ or charges:                               |              |
| Less: Non-allowable assets                                |              |
| 7,288<br>Prepaid expenses                                 |              |
| Total non-allowable assets                                | 7,288        |
| Net capital                                               | \$<br>15,529 |
| COMPUTATION OF BASIC NET CAPITAL REQUIREMENT              |              |
| Minimum net capital required of 6 2/3% of aggregate       |              |
| indebtedness of \$13,624 or \$5,000, whichever is greater | 5,000        |
| Excess of net capital over minimum requirement            | \$<br>10,529 |
| Aggregate indebtedness                                    |              |
| Accounts payable                                          | 1,038        |
| Due to member                                             | 12,586       |
| Total aggregate indebtedness                              | \$<br>13,624 |
| Percent of aggregate indebtedness to net capital          | 87.73%       |

### **RECONCILIATION OF COMPUTATION OF NET CAPITAL UNDER SEA RULE 15c3-1 AS OF DECEMBER 31, 2025**

*There ivere no material differences betJveen the Computation of Net Capital above and the corresponding schedule included in the Compa,ry's audited December 3 1, 2025 Part IIA FOCUS filing.* 

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#### **SCHEDULE II**

# **COMPUTATION FOR DETERMINATION OF THE RESERVE REQUIREMENTS AND INFORMATION RELATING TO POSSESSION OR CONTROL REQUIREMENTS FOR BROKERS AND DEALERS PURSUANT TO RULE 15C3-3 FOR THE YEAR ENDED DECEMBER 31, 2025**

The Company engages in mergers and acquisitions, the private placements of securities and corporate finance advisory services. The Company does not accept customer funds or securities and will not have possession of any customer funds or securities in connection with these activities. Therefore, in reliance on Footnote 74 to SEC Release 34-70073, which is discussed in Q & A 8 of the related FAQ issued by SEC staff, the firm will not claim an exemption from SEA Rule 15c3-3 as it does not effect transactions for anyone defined as a customer under Rule 15c3-3, and there are no items to report under the requirements of this Rule.

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### REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

# To the Member of Silver Box Securities LLC

We have reviewed management's statements, included in the accompanying Rule 15c3-3 Exemption Report pursuant to SEC Rule 17a-5, in which (1) SilverBox Securities LLC (the Company) did not claim an exemption under paragraph (k) of 17 C.F.R. §240.15c3-3, and (2) the Company is filing this Exemption Report relying on Footnote 74 of the SEC Release No. 34-70073 adopting amendments to 17 C.F.R. § 240. l 7a-5 because the Company limits its business activities exclusively to investment banking capital raising and merger and acquisition advisory services, and the Company (1) did not directly or indirectly receive, hold, or otherwise owe funds or securities for or to customers; (2) did not carry accounts of or for customers; and (3) did not carry PAB accounts (as defined in Rule 15c3-3) throughout the most recent fiscal year without exception.

SilverBox Securities LLC's management is responsible for compliance with the provisions contemplated by Footnote 74 of SEC Release No. 34-70073 adopting amendments to 17 C.F.R. § 240.17a-5 and related SEC Staff Frequently Asked Questions and its statements.

Our review was conducted in accordance with the standards of the Public Company Accounting Oversight Board (United States) and, accordingly, included inquiries and other required procedures to obtain evidence about SilverBox Securities LLC's compliance with Footnote 74 of SEC Release No. 34- 70073 adopting amendments to 17 C.F.R. §240.17a-5 and related SEC Staff Frequently Asked Questions. A review is substantially less in scope than an examination, the objective of which is the expression of an opinion on management's statements. Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material modifications that should be made to management's statements referred to above for them to be fairly stated, in all material respects, based upon the Company's business activities contemplated by Footnote 74 of the SEC Release No. 34-70073 adopting amendments to 17 C.F.R. § 240.17a-5, and related SEC Staff Frequently Asked Questions.

~~~t,y~

CROPPER ACCOUNTANCY CORPORATION Walnut Creek, California January 16, 2026

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SilverBox Securities LLC (the "Company") is a registered broker-dealer subject to Rule 17a-5 promulgated by the Securities and Exchange Commission (17 C.F.R. §240. l 7a-5, "Reports to be made by certain broker and dealers"). This Exemption Report was prepared as required by 17 C.F.R. §240. l 7a-5(d)(l) and (4). To the best or its knowledge and belief, the Company states the following:

- 1. The Company does not claim an exemption under paragraph (k) of 17 C.F.R. §240.15c3-3, and
- 2. The Company is filing this Exemption Report relying on Footnote 74 of the SEC Release No. 34-70073 adopting amendments to 17 C.F.R. §240.l 7a-5 because the Company limits its business activities exclusively to investment banking capital raising and merger and acquisition advisory services. and the Company (1) did not directly or indirectly receive, hold, or otherwise owe funds or securities for or to customers; (2) did not carry accounts of or for customers; and (3) did not carry PAB accounts (as defined in Rule I 5c3-3) throughout the most recent fiscal year without exception.

I affirm to the best of my knowledge and belief, this Exemption Report is true and correct.

**By:\_4\_4f \_\_\_\_ \_** 

Daniel Esters Chief Financial Officer and Chief Compliance Officer SilverBox Securities LLC January 12, 2026


Source: SEC EDGAR via Adviser Search (https://search.stillhousedata.com). Agents: see https://search.stillhousedata.com/llms.txt.
