Aurora Innovation, Inc.

ATM Offering

As previously disclosed, on February 14, 2025, we entered into a Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co., TD Securities (USA) LLC and Allen & Company LLC, as sales agents (the “Sales Agents”), pursuant to which we may, from time to time, sell shares of our Class A common stock through the Sales Agents in an “at-the-market” offering (the “ATM Offering”).

In connection with the ATM Offering, we filed a prospectus supplement dated February 14, 2025 (the “Original Prospectus Supplement”) to the prospectus contained in our automatically effective shelf registration statement on Form S-3ASR (Registration No. 333-284133) filed on January 3, 2025, registering the sale of up to an aggregate of $500,000,000 of our Class A common stock. As of the date hereof, we have offered and sold 69,105,334 shares of our Class A common stock in the ATM Offering for gross proceeds of $420,620,688.

We are filing amendment no. 1 to the Original Prospectus Supplement with the Securities and Exchange Commission, to be dated July 30, 2025 (the “Prospectus Supplement Amendment”), to increase the aggregate dollar amount of shares of Class A common stock that we may sell in the ATM Offering to $1,000,000,000, which consists of $79,379,312 remaining under the Original Prospectus Supplement, and an additional $920,620,688, under the Prospectus Supplement Amendment.

A copy of the opinion of Wilson Sonsini Goodrich & Rosati, P.C. relating to the validity of the securities issued in the ATM Offering pursuant to the Prospectus Supplement Amendment is filed as Exhibit 5.1 to this Quarterly Report.

Securities Trading Plans of Directors and Executive Officers

During our last fiscal quarter, no director or officer, as defined in Rule 16a-1(f), adopted orterminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” each as defined in Regulation S-K Item 408.