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

Katherine Ann Spenner

Currently registered

Katherine Ann Spenner is an attorney admitted to the New York State Bar in 2009, 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 number4725131
Bar statusCurrently registered
Year admitted2009
Judicial departmentDepartment 1
Law schoolUniversity of Idaho College of Law
Practice cityNew York, NY
CountyNew York
Firm / organizationMosaic Insurance
Office address60 E 42Nd St Fl 42, New York, NY, 10165
Phone(208) 371-6005
Next registration dueAug 2027

About Mosaic Insurance

Mosaic Insurance is a specialty insurer founded by Mitch Blaser and Mark Wheeler, which describes itself as a next-generation global specialty insurer. It underwrites through its own Lloyd's syndicate and, alongside outside capital partners, writes business for other carriers across several specialty lines. The lines it names include cyber, environmental liability, financial institutions, political risk, political violence, professional liability and transactional liability. Claims handling is presented as built into each of its lines.

Practice areas of Mosaic Insurance:

Insurance

These are the practice areas the organization describes on its website. They are not a statement about Katherine Ann Spenner’s own practice or any specialty certification.

View the Mosaic Insurance profile and its 6 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.

Verify this record

Bar status can change at any time. For the authoritative, real-time status of Katherine Ann Spenner, 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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Other graduates of University of Idaho College of Law

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