We are subject to a number of risks that could materially and adversely affect our business, financial condition, and results of operations and future prospects, including those identified in Item 1A, “Risk Factors” of Part I of our Annual Report on Form 10-K for the year ended December 31, 2025, which was filed with the SEC on March 24, 2026, as supplemented by the updated risk factors set forth below. Other than the risk factors described below, as of June 30, 2026, there have been no material changes from the risk factors previously disclosed in response to Item 1A of Part I of our Annual Report on Form 10-K for the year ended December 31, 2025. We have identified conditions and events that raise substantial doubt about our ability to continue as a going concern. We will require substantial funds to maintain our research and development program and support operations in the near term. We have incurred losses and negative cash flows from operations since our inception. As of June 30, 2026, we had $5.1 million in cash and cash equivalents. In August 2026, we completed the August 2026 Public Offering for estimated net proceeds of approximately $4.8 million. Based upon our current operating plan, we believe that our $5.1 million of existing cash and cash equivalents as of June 30, 2026, together with the estimated net proceeds of approximately $4.8 million from the August 2026 Public Offering, should enable us to fund our existing operations into the fourth quarter of 2026. We have based this assessment on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. Based upon our current cash and cash equivalents, recurring losses and cash outflows from operations since inception, an expectation of continuing losses and cash outflows from operations for the foreseeable future and the need to raise additional capital to finance our future operations, we have concluded that we do not have sufficient cash on hand to support current operations beyond the next 12 months from the date of filing this Quarterly Report on Form 10-Q. We will require substantial additional funding to fund the development of emavusertib through regulatory approval and commercialization, and to support our continued operations. We will need to seek additional funding through a number of potential avenues, including private or public equity financings, collaborations, or other strategic transactions. We have faced and expect to continue to face substantial difficulties in raising capital. If sufficient funds are not available, we will have to delay, reduce the scope of, or eliminate our research and development program for emavusertib, including related clinical trials and operating expenses, potentially delaying the time to market for or preventing the marketing of emavusertib, which would adversely affect our business prospects and our ability to continue our operations, and would have a negative impact on our financial condition and ability to pursue our business strategies. In addition, we may seek to engage in one or more strategic alternatives, such as a strategic partnership with one or more parties, the licensing, sale or divestiture of some of our assets or proprietary technologies or the sale of our company, but there can be no assurance that we would be able to enter into such a transaction or transactions on a timely basis or on terms favorable to us, or at all. If we are unable to obtain sufficient capital, we would be unable to fund our operations and may be required to evaluate alternatives, which could include dissolving and liquidating our assets or seeking protection under the bankruptcy laws, and a determination to file for bankruptcy could occur at a time that is earlier than when we would otherwise exhaust our cash resources. If we decide to dissolve and liquidate our assets or to seek protection under the bankruptcy laws, it is unclear to what extent we would be able to pay our obligations, and, accordingly, it is further unclear whether and to what extent any resources would be available for distributions to stockholders. If we are unable to continue as a going concern, we may have to liquidate our assets and may receive less than the value at which those assets are carried, and it is likely that investors will lose all or a part of their investment. If we seek additional 33 Table of Contents financing to fund our business activities in the future and there remains substantial doubt about our ability to continue as a going concern, investors or other financing sources may be unwilling to provide funding to us on commercially reasonable terms, if at all. If we fail to meet the requirements for continued listing on the Nasdaq Capital Market, our common stock could be delisted from trading, which would decrease the liquidity of our common stock and our ability to raise additional capital. Our common stock is currently listed on the Nasdaq Capital Market. We are required to meet specified requirements to maintain our listing on the Nasdaq Capital Market, including standards relative to minimum stockholders’ equity, minimum market value of publicly held shares and various additional requirements. On July 24, 2026, we received a notice from Nasdaq indicating that we have regained compliance with the minimum bid price requirement of the Nasdaq Capital Market as set forth in Nasdaq Listing Rule 5550(a)(2). However, we are subject to a Discretionary Panel Monitor for a one-year period from July 24, 2026. If we fail to maintain our current compliance with any continued listing requirement, the Staff will issue a Delist Determination Letter, and we would promptly schedule a new hearing with the initial Panel or a newly convened Hearings Panel if the initial Panel is unavailable. Notwithstanding Rule 5810(c)(2), we will not be permitted to provide Staff with a plan of compliance with respect to any deficiency that arises during the monitor period, and Staff will not be permitted to grant additional time for us to regain compliance with respect to any deficiency. The Hearings Panel will consider our compliance history when rendering its decision. However, there can be no assurance that such appeal will be successful or that the Company will remain listed on Nasdaq. If we fail to satisfy the Nasdaq Capital Market’s continued listing requirements and we are delisted from Nasdaq, we may transfer to and commence trading on the OTC Markets or another quotation medium. As a result, an investor would likely find it more difficult to trade or obtain accurate price quotations for our shares. Delisting would likely also reduce the visibility, liquidity, and value of our common stock, could have a material adverse effect on our access to capital markets and our ability to raise capital on terms acceptable to us, or at all, to provide stock-based incentives to attract and retain personnel, reduce institutional investor interest in our company, and may increase the volatility of our common stock. Delisting could also be considered a material adverse event or an event of default in certain of our third-party contracts or cause a loss of confidence of potential industry partners, lenders, and employees, which could further harm our business and our future prospects. In addition, our common stock could be deemed to be a “penny stock,” which could result in reduced levels of trading in our common stock, and we would also become subject to additional state securities regulations in connection with any sales of our securities. Some or all of these material adverse consequences may contribute to a further decline in our stock price. Our July 2026 Reverse Stock Split may decrease the liquidity of our common stock. On July 6, 2026, we effected a 1-for-20 reverse stock split of our common stock, or the Reverse Stock Split. The liquidity of our common stock may be adversely affected by the Reverse Stock Split given the reduced number of shares outstanding following the Reverse Stock Split, which may lead to reduced trading and a smaller number of market makers for our common stock, particularly if the per-share trading price does not increase as a result of the Reverse Stock Split. In addition, the Reverse Stock Split may have increased the number of stockholders who own “odd lots” of less than 100 shares of our common stock. Odd lot shares may be more difficult to sell, and brokerage commissions and other costs of transactions in odd lots may be higher than the costs of transactions in “round lots” of even multiples of 100 shares. Following the Reverse Stock Split, the resulting per-share trading price of our common stock may fail to attract or retain investors and may not satisfy the investing guidelines of institutional investors and, consequently, the trading liquidity of our common stock may be adversely impacted.