Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records

Guy Matthew Miller

Currently registered

Guy Matthew Miller is an attorney admitted to the New York State Bar in 1997, with a registered practice address in New York, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number2787893
Bar statusCurrently registered
Year admitted1997
Judicial departmentDepartment 1
Law schoolNew York University School of Law
Practice cityNew York, NY
CountyNew York
Firm / organizationCitadel Securities Llc
Office address425 Park Ave, New York, NY, 10022
Phone(312) 395-4660
Next registration dueJan 2027

About Citadel Securities

Citadel Securities describes itself as a technology-driven, next-generation global market maker that supplies liquidity to institutional and retail investors. Its official site states that it is a separate and distinct financial firm from Citadel, which focuses on a different part of the markets. A third-party company profile says its offerings include liquidity provision, market making in equities, options, fixed income and FX, and corporate solutions for institutional clients. Wikipedia lists the company as a private financial services firm with headquarters in Miami, Florida.

View the Citadel Securities profile and its 14 registered attorneys →

Office location

Registered office address on file with the New York State Bar. Verify before visiting, as the address reflects the contact on record and may be a firm rather than a personal office.

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Bar status can change at any time. For the authoritative, real-time status of Guy Matthew Miller, confirm directly through the official New York Attorney Search using the registration number above. This record is republished from public New York State data and is provided for reference only — it is not legal advice and not an endorsement.

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