# EDGAR Filing Document

**Accession Number:** 0000808379
**File Stem:** 0000808379-26-000003
**Filing Date:** 2026-2
**Character Count:** 2692
**Document Hash:** ac7c9479189fe184fb24d65a07aef48c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000808379-26-000003.hdr.sgml**: 20260213

**ACCESSION NUMBER**: 0000808379-26-000003

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260213

**DATE AS OF CHANGE**: 20260213

**EFFECTIVENESS DATE**: 20260213

**PERIOD START**: 20250101

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NATWEST MARKETS SECURITIES INC.
- **CENTRAL INDEX KEY:** 0000808379

**ORGANIZATION NAME:**
- **EIN:** 133172275
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** X-17A-5
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 008-37135
- **FILM NUMBER:** 26633887

**BUSINESS ADDRESS:**
- **STREET 1:** 600 WASHINGTON BOULEVARD
- **CITY:** STAMFORD
- **STATE:** CT
- **ZIP:** 06901
- **BUSINESS PHONE:** 203-897-4429

**MAIL ADDRESS:**
- **STREET 1:** 600 WASHINGTON BOULEVARD
- **CITY:** STAMFORD
- **STATE:** CT
- **ZIP:** 06901

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RBS Securities Inc.
- **DATE OF NAME CHANGE:** 20090408

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RBS SECURITIES INC.
- **DATE OF NAME CHANGE:** 20090402

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GREENWICH CAPITAL MARKETS, INC.
- **DATE OF NAME CHANGE:** 20020124

### Attached PDF Documents

**Attachment 1:** `NWMSIpublic.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:** 0000808379

**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:** NATWEST MARKETS SECURITIES INC.

**Business Address:** 600 WASHINGTON BOULEVARD, STAMFORD, CT, 06901

**Contact Person:** Ethan Babayev

**Contact Phone:** 203-897-2032

### Independent Public Accountant Identification

**Accountant Name:** ERNST & YOUNG, LLP

**Accountant Address:** ONE MANHATTAN WEST, NEW YORK, NY, 10001

**Accountant Type:** Certified Public Accountant

### OATH OR AFFIRMATION

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

**Signature:** Ethan Babayev

**Title:** Chief Financial Officer

**Notarized:** Yes