Avidbank Holdings, Inc.

Unregistered Sales of Equity Securities, Use of Proceeds, and Issuer Purchases of Equity Securities

(a)Unregistered Sales of Equity Securities

Prior to the closing of our initial public offering in August 2025, between January 2025 and July 2025, we granted an aggregate of 75,740 restricted shares of our common stock pursuant to our 2022 Equity Incentive Plan, as amended, to various directors, executive officers and employees. No underwriter or placement agent was involved in the issuance or sale of any of these securities, and no underwriting discounts or commissions were paid. The issuance and sale of the securities described above were made in reliance upon the exemption from registration requirements pursuant to Rule 701 promulgated under the Securities Act of 1933, as amended, as a transaction by an issuer not involving any public offering pursuant to a written, compensatory benefit plan relating to compensation.

(b)Use of Proceeds

On August 11, 2025, we completed the sale of 2,610,000 shares of our common stock, at a public offering price of $23.00 per share in our initial public offering (“IPO”). Subsequently, on August 13, 2025, we completed the sale of an additional 391,500 shares of our common stock, at the public offering price pursuant to the over-allotment option granted to the underwriters in connection with the IPO. Piper Sandler & Co. and Stephens Inc., acted as joint book running managers in connection with the IPO, and D.A. Davidson & Co. and Janney, Montgomery Scott LLC acted as lead manager and co-manager, respectively, in connection with the IPO. We paid an aggregate of underwriting discounts and commissions of approximately $4.7 million and estimated offering expenses of approximately of $2.5 million in connection with the IPO, resulting in aggregate net proceeds to the Company of approximately $62.0 million. None of the expenses associated with the IPO were paid to directors, officers, affiliates, persons owning 10% or more of any class of equity securities, or their associates.

All of the shares issued and sold in our IPO were registered under the Securities Act pursuant to a registration statement on Form S-1 (File No. 333-288743), which was declared effective by the SEC on August 7, 2025. There have been no material changes in the planned use of proceeds from our IPO from those disclosed in our final prospectus dated as of August 7, 2025 and filed with the SEC pursuant to Rule 424(b)(4) on August 8, 2025.

(c)Issuer Purchases of Equity Securities

None.