GT Biopharma, Inc.

Summary of Principal Accounting Fees for Professional Services Rendered

Our independent registered public accounting firm is Weinberg & Company, P.A. 1925 Century Park E., Suite 1120, Los Angeles, CA 90067. PCAOB Auditor ID: 572. The following table presents the aggregate fees for professional audit services and other services rendered in the fiscal years ended December 31, 2025 and 2024.

Audit Fees consist of amounts billed for professional services rendered for the audit of our annual financial statements included in our Annual Reports on Form 10-K, and reviews of our interim financial statements included in our Quarterly Reports on Form 10-Q.

Audit-Related Fees consist of fees billed for professional services that are reasonably related to the performance of the audit or review of our financial statements but are not reported under “Audit Fees.”

Tax Fees consist of fees for professional services for tax compliance activities, including the preparation of federal and state tax returns and related compliance matters.

All Other Fees consists of amounts billed for services other than those noted above, including comfort letters, and consents.

The audit committee of our board of directors has considered whether the provision of the services described above for the fiscal years ended December 31, 2025 and 2024, is compatible with maintaining the auditor’s independence.

All audit and non-audit services that may be provided by our principal accountant to us shall require pre-approval by the audit committee of our Board. Further, our auditor shall not provide those services to us specifically prohibited by the SEC, including bookkeeping or other services related to the accounting records or financial statements of the audit client; financial information systems design and implementation; appraisal or valuation services, fairness opinion, or contribution-in-kind reports; actuarial services; internal audit outsourcing services; management functions; human resources; broker-dealer, investment adviser, or investment banking services; legal services and expert services unrelated to the audit; and any other service that the Public Company Accounting Oversight Board determines, by regulation, is impermissible.