COMMON STOCK

3 Months Ended

Mar. 31, 2023

COMMON STOCK.

COMMON STOCK

4. COMMON STOCK

Common Stock Issued, Net of Issuance Costs

December 2020 Purchase Agreement with Lincoln Park Capital Fund, LLC (“Lincoln Park”)

On December 4, 2020, the Company entered into the 2020 Lincoln Park PA with Lincoln Park to place up to either $100.0 million or 16.0 million shares in the aggregate of the Company's common stock on an ongoing basis over a term of 36 months. The Company controls the timing and amount of any sales to Lincoln Park, and Lincoln Park is obligated to make purchases in accordance with the 2020 Lincoln Park PA. Any common stock that is sold to Lincoln Park will occur at a purchase price that is based on an agreed upon fixed discount to the Company's prevailing market prices at the time of each sale and with no upper limits on the price Lincoln Park may pay to purchase common stock. The Lincoln Park PA may be terminated by the Company at any time, in its sole discretion, without any additional cost or penalty.

The 2020 Lincoln Park PA specifically provides that the Company may not issue or sell any shares of its common stock under the agreement if such issuance or sale would breach any applicable rules of the NYSE American Stock Exchange (“NYSE American”). In particular, NYSE American General Rule 713(a) provides that the Company may not issue or sell more than 19.99% of the number of shares of the Company’s common stock that were outstanding immediately prior to the execution of the 2020 Lincoln Park PA unless (i) shareholder approval is obtained or (ii) the average price of all applicable sales of common stock to Lincoln Park under the 2020 Lincoln Park PA, equals or exceeds $6.15. The

Company held its 2021 Annual Shareholders Meeting on May 21, 2021 and obtained shareholder approval for the issuance of more than 19.99% of the shares of the Company’s common stock outstanding under the 2020 Lincoln Park PA.

Lincoln Park has no right to require the Company to sell any shares of common stock to Lincoln Park, but Lincoln Park is obligated to make purchases as the Company directs, subject to certain conditions. In all instances, the Company may not sell shares of its common stock to Lincoln Park under the 2020 Lincoln Park PA if it would result in Lincoln Park beneficially owning more than 9.99% of the Company’s common stock at any one point in time.

Since inception and through March 31, 2023, the Company has sold 6.3 million shares of common stock to Lincoln Park pursuant to the 2020 Lincoln Park PA.

During the three months ended March 31, 2023 and 2022, the Company did not sell any shares of common stock pursuant to the 2020 Lincoln Park PA.

Controlled Equity Offering Sales Agreement with Cantor Fitzgerald & Co.

On April 14, 2017, the Company entered into the ATM Offering Agreement with Cantor acting as the sales agent. Under the ATM Offering Agreement, the Company may from time to time sell shares of its common stock in “at-the-market” offerings. The Company pays Cantor a commission of up to 2.5% of the gross proceeds from the sale of any shares pursuant to the ATM Offering Agreement.

During the three months ended March 31, 2023, the Company sold 1.5 million shares of common stock for net proceeds of $1.5 million pursuant to the ATM Offering Agreement.  The Company sold 7.4 million shares of common stock for net proceeds of $15.6 million pursuant to the ATM Offering Agreement for the three months ended March 31, 2022.  

Sales made under the ATM Offering Agreement are made pursuant to the prospectus supplement filed March 13, 2023 which amends and supplements the prospectus supplement filed pursuant to Rule 424(b)(5), which registered for sale up to a total of $50.0 million of the Company’s common stock, which was filed on August 20, 2021 as a takedown off the Company’s Registration Statement, which was declared effective by the U.S. Securities and Exchange Commission (the “SEC”) on July 8, 2021.  The Company is subject to General Instruction I.B.6 of Form S-3, which limits the amount that we may sell under the Registration Statement. After giving effect to these limitations and the current public float of our common stock, and after giving effect to the terms of the ATM Offering Agreement, we currently may offer and sell shares of our common stock having an aggregate offering price of up to $19,250,000 under the ATM Offering Agreement, which amount is in addition to the shares of common stock that we have sold to date in accordance with the ATM Offering Agreement under the Registration Statement and prospectus supplements thereto. If our public float increases such that we may sell additional amounts under the ATM Offering Agreement and the Registration Statement, we will file another prospectus supplement prior to making additional sales.

As of March 31, 2023, the Company has received total gross proceeds of $30.7 million under the ATM Offering Agreement.