Interest Income
During the three and nine months ended September 30, 2022, interest income increased due to higher interest rates on cash and cash equivalents.
Liquidity and Capital Resources
Sources of Liquidity
We have historically financed our operations primarily through public offerings and private placements of our capital stock, including sales agreements with Cowen, and upfront and milestone payments from our license and collaboration agreements. As of September 30, 2022, we had $51.6 million in cash and cash equivalents.
In October 2020, we entered into an at-the-market sales agreement, or the 2020 Sales Agreement, with Cowen. During the year ended December 31, 2020, we sold 1,024,760 shares of common stock under the 2020 Sales Agreement at a weighted average price of $3.74 per share, for aggregate net proceeds of $3.7 million, after deducting commissions and offering expenses. During the year ended December 31, 2021, we sold an additional 3,092,603 shares of common stock under the 2020 Sales Agreement at a weighted average price of $3.57 per share, for aggregate net proceeds of $10.7 million, after deducting commissions and offering expenses. We did not make any additional sales under the 2020 Sales Agreement in 2022, and the 2020 Sales Agreement was terminated in April 2022.
In March 2022, we filed a shelf registration statement with the SEC, which was declared effective on April 22, 2022. On April 28, 2022, we entered into a new at-the-market sales agreement, or the 2022 Sales Agreement, with Cowen. Under the 2022 Sales Agreement, we may sell up to $100.0 million in shares of our common stock. As of September 30, 2022, there have been no sales under the 2022 Sales Agreement.
We entered into a collaboration and license agreement with Apollomics in January 2020 and are potentially eligible to earn milestone payments and royalties under that agreement. In January 2020, Apollomics made an upfront payment to us of $9.0 million. We also received a non-refundable payment of $1.0 million in September 2020 as a clinical development milestone payment. Our ability to earn additional milestone payments and potential royalty payments and their timing will be dependent upon the outcome of Apollomics’ activities and is therefore uncertain at this time.
Funding Requirements
Our primary uses of capital are, and we expect will continue to be, compensation and related expenses, third-party clinical research and development services, laboratory and related supplies, clinical costs, legal and other regulatory expenses and general overhead costs.
As of September 30, 2022, our significant contractual obligations consisted solely of rent obligations under a non-cancelable lease, as amended, for our current office space in Rockville, Maryland, which has a term through October 2023. Total remaining obligations under this lease as of September 30, 2022 were $1.2 million. We have no other fixed long-term obligations and we do not have significant capital expenditure requirements.
The successful development of any of our drug candidates is highly uncertain. As such, at this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the remainder of the development of and potential commercialization of uproleselan or our other drug candidates. We are also unable to predict when, if ever, material net cash inflows will commence from uproleselan or our other drug candidates. This is due to the numerous risks and uncertainties associated with developing drugs, including the uncertainty of:
| ● | successful enrollment in, and completion of, clinical trials; |
| ● | receipt of marketing approvals from applicable regulatory authorities; |
| ● | establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers; |