Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity

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Stockholders' Equity
12 Months Ended
Dec. 31, 2019
Federal Home Loan Banks [Abstract]  
Stockholders' Equity

4. STOCKHOLDERS’ EQUITY

Preferred stock of 50.0 million shares, with a $0.0001 par value, is authorized but unissued.

Initial Public Offering

On July 25, 2017, we completed an IPO of our common stock, in which we sold an aggregate of 8,050,000 shares of our common stock at a price of $8.00 per share, including 1,050,000 shares of common stock pursuant to the exercise of the underwriters’ option to purchase additional shares. In the aggregate, we received net proceeds from the IPO and exercise of the overallotment of $58.0 million, after deducting underwriting discounts and commissions of $3.1 million and offering expenses totaling $3.3 million. As part of the IPO, Cellectis purchased 2,500,000 shares of our common stock for a value of $20.0 million, which is included in the net proceeds of $58.0 million. We used $5.7 million of the proceeds from Cellectis to pay a portion of our outstanding obligations to Cellectis.

Follow-on Public Offering

On May 22, 2018, we completed a follow-on offering of our common stock. We sold an aggregate of 4,057,500 shares of common stock at a price of $15.00 per share, including 457,500 shares of common stock pursuant to the exercise of the underwriters’ option to purchase additional shares. In the aggregate, we received net proceeds from the follow-on offering and exercise of the overallotment option of $57.0 million, after deducting underwriting discounts and commissions of $3.2 million and offering expenses totaling$0.7 million. As part of the follow-on offering, Cellectis purchased 550,000 shares of common stock for a value of $8.3 million, the proceeds of which are included in the net proceeds of $57.0 million.

Stock Splits

On June 14, 2017, we effected a stock split of our common stock at a ratio of 100-for-1 and increased the number of shares of common stock authorized for issuance to 30,000,000 by filing a Certificate of Amendment with the Secretary of State of the State of Delaware.

On July 25, 2017, we increased our authorized capital stock to 325,000,000 shares of which 275,000,000 shares are designated common stock, par value $0.0001, and 50,000,000 shares are designated preferred stock, par value $0.0001.

On July 25, 2017, concurrently with the closing of the IPO, we effected a stock split of our common stock at a ratio of 2.45-for-1. As a result of the stock split, each share of issued and outstanding common stock was converted into 2.45 shares of issued and outstanding common stock without changing the par value per share.

Since the par value of the common stock remained at $0.0001 per share subsequent to each stock split, the value of common stock recorded to our balance sheets has been retroactively increased to reflect the par value of the increased number of outstanding shares, with a corresponding decrease to additional paid-in capital. All share and per share data for periods occurring prior to the stock split that are included in the consolidated financial statements and related notes have been retroactively restated to reflect the stock splits.

We repurchased $813,000 of common stock in 2019 and $230,000 in 2018.