# EDGAR Filing Document

**Accession Number:** 0000786671
**File Stem:** 0000786671-26-000004
**Filing Date:** 2026-2
**Character Count:** 2692
**Document Hash:** a4e4beb3800d654bd6ee49e3f97d77b3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000786671-26-000004.hdr.sgml**: 20260220

**ACCESSION NUMBER**: 0000786671-26-000004

**CONFORMED SUBMISSION TYPE**: X-17A-5

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260220

**DATE AS OF CHANGE**: 20260220

**EFFECTIVENESS DATE**: 20260220

**PERIOD START**: 20250101

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BOK FINANCIAL SECURITIES, INC.
- **CENTRAL INDEX KEY:** 0000786671

**ORGANIZATION NAME:**
- **EIN:** 731275307
- **STATE OF INCORPORATION:** OK
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** X-17A-5
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 008-35381
- **FILM NUMBER:** 26657884

**BUSINESS ADDRESS:**
- **STREET 1:** ONE WILLIAMS CENTER
- **STREET 2:** PLAZA SOUTHEAST
- **CITY:** TULSA
- **STATE:** OK
- **ZIP:** 74172
- **BUSINESS PHONE:** 918-588-6963

**MAIL ADDRESS:**
- **STREET 1:** P.O. BOX 2300
- **CITY:** TULSA
- **STATE:** OK
- **ZIP:** 74192

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BOSC, INC.
- **DATE OF NAME CHANGE:** 20020806

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BOSC INC
- **DATE OF NAME CHANGE:** 20001023

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BOSC INC                                                /BD
- **DATE OF NAME CHANGE:** 20001023

### Attached PDF Documents

**Attachment 1:** `FS.pdf`

_No text found in this document._

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

## FORM X-17A-5

### ANNUAL AUDITED REPORT

### Filer Information

**Filer CIK:** 0000786671

**Filer CCC:** XXXXXXXX

**Is this a LIVE or TEST filing?:** LIVE

**Would you like a Return Copy?:** No

### Submission Information

**Report Period Begin Date:** 01-01-2025

**Report Period End Date:** 12-31-2025

**Type of Registrant:** Broker-dealer

**Any material weaknesses identified?:** No

### Registrant Identification

**Name of Broker-Dealer:** BOK FINANCIAL SECURITIES, INC.

**Business Address:** ONE WILLIAMS CENTER, PLAZA SOUTHEAST, TULSA, OK, 74172

**Contact Person:** Katie Dodson

**Contact Phone:** 405-272-2526

### Independent Public Accountant Identification

**Accountant Name:** Ernst & Young LLP

**Accountant Address:** One Williams Center Suite 1700, Tulsa, OK, 74172

**Accountant Type:** Certified Public Accountant

### OATH OR AFFIRMATION

I, **Katie Dodson**, swear (or affirm) that, to the best of my knowledge and belief, the accompanying financial statements and supporting schedules pertaining to the firm of **BOK FINANCIAL SECURITIES, INC.**, as of **12-31-2025**, are true and correct.

**Signature:** Katie Dodson

**Title:** Chief Financial Officer