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Aileen Lorelle Postlethwaite

XTX EXECUTION SERVICES
NEW YORK, NY
·CRD# 5931575·7 years experience

Professional Summary

Aileen Lorelle Postlethwaite is a registered financial advisor currently at XTX EXECUTION SERVICES LLC located in New York, New York and XTX MARKETS LLC located in New York, New York. Aileen is registered as a RR (Registered Representative) and started their career in finance in 2019. Aileen has worked at 3 firms and has passed the SIE, Series 7, Series 14 and Series 24 exams.

At a Glance

Best-Interest Standard

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Other Aliases

There are no additional aliases reported.

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Videos & Posts

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Contact Information

This advisor has not claimed their profile yet, so there is no contact information to display at this time.

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Disclosures are events reported to regulators, such as customer disputes, regulatory actions, employment separations, or financial events. Some are resolved, denied, or contested — a disclosure is not a verdict. We recommend asking an advisor directly about any disclosure on their record.

Disclosures on record.

Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities. Check for any disclosures as part of your thorough research when choosing an advisor.

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Years of Experience

7 years in the financial services industry

Current & Past Employments

XTX EXECUTION SERVICES LLC·CRD# 309266
BD
50 Hudson Yards 72nd Floor, New York, NY 10001
April 4, 2025 - Present
XTX MARKETS LLC·CRD# 289846
BD
50 Hudson Yards 72nd Floor, New York, NY 10001
April 4, 2025 - Present
BARCLAYS CAPITAL INC.·CRD# 19714
BD
New York, NY
January 3, 2019 - February 20, 2025

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Current Firm

XM
XTX MARKETS LLC

XTX MARKETS LLC

CRD#: 289846 / SEC#: 8-70009
BD
Broker-Dealer Firm Regulated by FINRA (New York district office)

Contact Information

Main Address

50 Hudson Yards 72nd Floor, New York, NY 10001

Mailing Address

50 Hudson Yards 72nd Floor, New York, NY 10001

Phone Number

(212) 660-9930

Established

New York since 05/12/2016

Firm Type

Limited Liability Company

Fiscal Year End

December

Firm Size

Small

FINRA licenses (1 States and Territories)

Registered to provide investment advisory services in 0 US states and territories.

Documents

Direct owners and executive officers

NamePositionCRD#
XTX HOLDINGS LLCSOLE MEMBER—
BRINGUIER, ROBIN JEAN ROBERT MARIEHEAD OF U.S. OPERATIONS - PRINCIPAL OPERATIONS OFFICER7798550
KLEYMAN, LILIANA MICHELLEFINOP - PRINCIPAL FINANCIAL OFFFICER6697556
POSTLETHWAITE, AILEEN LORELLECHIEF COMPLIANCE OFFICER5931575
SWANSON, ERIC JOHNCEO5224320

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Other business activities

Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.

The advisor shows no other business activity.

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State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.
This advisor is not registered in any state.

Exams

Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.

SIE — Securities Industry Essentials Examination

Passed Jan 2019About the SIE exam

Series 7 — General Securities Representative Examination

Passed Jan 2019About the Series 7 exam

Series 14 — Compliance Officer Examination

Passed Jan 2026About the Series 14 exam

Series 24 — General Securities Principal Examination

Passed Dec 2025About the Series 24 exam
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CRS (Client Relationship Summary) - BD

Click below to view Aileen Lorelle Postlethwaite's CRS (Customer Relationship Summary).

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