preferred stock and issuance of convertible promissory notes, stock option exercises, and sale of stock through the Company’s 2020 Employee Stock Purchase Plan, or ESPP.
As of September 30, 2023, we had $276.9 million in cash, cash equivalents and marketable securities and accumulated deficit of $278.9 million. We had no debt outstanding as of September 30, 2023.
In September 2023, we completed the Private Placement resulting in gross proceeds of approximately $130.0 million. After deducting offering expenses related to the Private Placement of approximately $0.2 million, the net proceeds to from the Private Placement were approximately $129.8 million.
Also on September 5, 2023, we entered into the Loan Agreement which provides for the Credit Facility in an aggregate principal amount of up to $50.0 million, of which $25.0 million became available upon the closing of the Private Placement, and the remaining $25.0 million may be made available upon approval of the Bank in its discretion. The Credit Facility will mature on August 1, 2027. As of September 30, 2023, we had not drawn down from the Credit Facility, and had no other debt outstanding.
We expect to incur significant expenses and operating losses for the foreseeable future as we advance the clinical development of palazestrant and nonclinical studies. We expect that our research and development and general and administrative costs will increase in connection with conducting additional nonclinical studies and clinical trials for our current and future research programs and product candidates, contracting with CMOs to support nonclinical studies and clinical trials, expanding our intellectual property portfolio, and providing general and administrative support for our operations. As a result, we will need additional capital to fund our operations, which we may obtain from additional equity or debt financings, collaborations, licensing arrangements or other sources.
Our primary uses of cash are to fund our research and development activities, including with respect to palazestrant and other nonclinical programs, business planning, establishing and maintaining our intellectual property portfolio, hiring personnel, raising capital and providing general and administrative support for these operations.
Other than as noted above, we currently have no financing commitments, such as lines of credit or guarantees, that are expected to affect our liquidity over the next five years.
Future funding and material cash requirements
To date, we have not generated any revenue from product sales. We do not expect to generate any meaningful revenue unless and until we obtain regulatory approval of and commercialize any of our product candidates, and we do not know when, or if at all, that will occur. We expect our expenses to increase in connection with our ongoing activities, particularly as we initiate and conduct clinical trials of, and seek marketing approval for, palazestrant. In addition, if we obtain marketing approval for our product candidates, we expect to incur significant commercialization expenses related to program sales, marketing, manufacturing and distribution to the extent that such sales, marketing and distribution are not the responsibility of potential collaborators. Furthermore, we have incurred and expect to continue to incur additional costs associated with operating as a public company. The amount and timing of our future funding requirements will depend on many factors, including the pace and results of our development efforts.
We expect our cash, cash equivalents, and marketable securities as of September 30, 2023, as well as the available balance under the Credit Facility, will enable us to fund our current operating plan into 2027. We anticipate our cash, cash equivalents, and marketable securities balance to range between $250.0 to $255.0 million on December 31, 2023. If we are unable to raise capital when needed or on attractive terms, we would be forced to delay, reduce or eliminate our research and development programs or future commercialization efforts. Our future capital requirements will depend on many factors, including:
| ● | the scope, progress, results and costs of product discovery, nonclinical studies and clinical trials; |