(7) Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit)

Initial Public Offering

In November 2019, the Company closed its IPO in which the Company issued and sold 4,398,700 shares of its common stock at a public offering price of $13.00 per share, including 398,700 shares of the Company’s common stock sold pursuant to the underwriters’ option to purchase additional shares. The Company received net proceeds of $50.6 million after deducting underwriting discounts, commissions and other offering expenses. In addition, immediately prior to the closing of the IPO, all of the Company’s outstanding shares of redeemable convertible preferred stock, including accrued dividends payable converted into an aggregate of 6,708,649 shares of common stock and the Company’s outstanding warrants to purchase shares of preferred stock were automatically converted into warrants to purchase an aggregate of 88,556 shares of common stock.

Preferred Stock

Prior to the IPO, all of the Company’s redeemable convertible preferred stock was classified outside of stockholders’ deficit because the shares contain certain redemption features that were not solely within the control of the Company. At the time of issuance, the redeemable convertible preferred stock was recorded at its issuance price, less issuance costs.

Throughout 2019, the Company entered into various stock purchase agreements with new and existing investors pursuant to which the Company sold an aggregate 12,527,956 shares of the Company’s Series B at $1.16 per share for aggregate gross proceeds of $14.5 million. Transaction fees of $0.2 million were recorded as a reduction of the carrying value of the Series B.

Throughout 2018, the Company entered into various stock purchase agreements with new and existing investors pursuant to which the Company sold an aggregate 3,607,069 shares of the Company’s Series B at $1.16 per share for aggregate gross proceeds of $4.2 million. Transaction fees of $0.2 million were recorded as a reduction of the carrying value of the Series B.

In October 2017, the Company entered into a stock purchase agreement with a strategic corporate investor pursuant to which the Company sold 12,931,034 shares of the Company’s Series B at $1.16 per share for aggregate gross proceeds of $15.0 million. Transaction fees of $0.3 million were recorded as a reduction of the carrying value of the Series B. Concurrent with this financing, a total of 6,951,175 shares of Series B were issued upon conversion of the Convertible Notes plus accrued interest on such notes (Note 6).

Warrants

The Company had the following warrants outstanding to purchase common stock at December 31, 2019:


			Exercise	Expiration
	Outstanding		price	dates
Common stock warrants issued to MidCap	8,379	$	28.65	2028
Common stock warrants issued to note payable holders	15,712		28.65	2027
Common stock warrants issued to convertible promissory note holders	64,465	$	28.65	2027
	88,556