(8) Stockholders' Equity

In the Broadband Spin-Off, record holders of Liberty Series A, Series B and Series C common stock received one-fourth of a share of the corresponding series of Liberty Broadband common stock for each share of Liberty common stock held by them, with cash paid in lieu of fractional shares. This resulted in the issuance of an aggregate 85,761,332 shares of Series A, Series B and Series C common stock.

In addition, following the completion of the Broadband Spin-Off, on December 10, 2014, stockholders received a subscription right to acquire one share of Liberty Broadband Series C common stock for every five shares of Liberty Broadband common stock they held as of the rights record date at a per share subscription price of $40.36, which was a 20% discount to the 20-trading day volume weighted average trading price of the Series C Liberty Broadband common stock following the completion of the Broadband Spin-Off. The rights offering was fully subscribed on January 9, 2015, with 17,277,224 shares of Series C common stock issued to those rightsholders exercising basic and, as applicable, oversubscription privileges. The subscription rights were issued to raise capital for general corporate purposes of Liberty Broadband.

In connection with the Time Warner Cable Merger in May 2016, Liberty Broadband funded its purchase of shares of Charter Class A common stock using proceeds of $4.4 billion related to subscriptions for approximately 78.3 million newly issued shares of Liberty Broadband Series C common stock, par value $0.01 per share (the “Series C Shares”), at a price per share of $56.23, which was determined based upon the fair value of Liberty Broadband’s net assets on a sum-of-the parts basis at the time certain Amended and Restated Investment Agreements were executed. The purchasers of the Series C Shares were Liberty Interactive through its Liberty Ventures Group (approximately 42.7 million shares) and certain other third party investors, which all invested on substantially similar terms. One of the third party investors also held a position in Time Warner Cable and agreed to vote its Time Warner Cable shares in favor of the Time Warner Cable Merger. Each of Legacy Charter and Liberty Broadband obtained stockholder approval during September 2015 for the issuance of the Charter shares and the Series C Shares, respectively, in accordance with the rules and requirements of the Nasdaq Stock Market. The issuance of the Series C Shares was not registered under the Securities Act of 1933, as amended (the “Securities Act”), in reliance on the exemption from registration provided by Section 4(a)(2) of the Securities Act and the rules and regulations of the Securities and Exchange Commission promulgated thereunder. As a result of the issuance of the Series C Shares in connection with the Transactions, Liberty Interactive’s non-voting economic ownership in Liberty Broadband was 23.5% as of December 31, 2016.

As discussed in note 4, the Company had an outstanding zero-strike call option on 704,908 Series C Shares at December 31, 2016, which expired in March 2017.  The Company prepaid a premium of $47.9 million in December 2016.  Liberty Broadband exercised its option to settle the contract in cash in March 2017 for cash proceeds of $50.0 million. The Company entered into another zero-strike call option on 527,156 shares of Liberty Broadband Series C common stock and prepaid a premium of $47.7 million in October 2017. Upon expiration of the contract in December 2017, the Company physically settled the contract by purchasing 527,156 shares of Liberty Broadband Series C common stock at a price of $90.54 per share. As of December 31, 2018, the Company had no zero-strike call options outstanding. The Company accounted for the zero-strike call option as a financial instrument asset due to its settlement provisions. Accordingly, changes in the fair value of the asset are included in realized and unrealized gains (losses) on financial instruments in the accompanying statement of operations.

Preferred Stock

Liberty Broadband's preferred stock is issuable, from time to time, with such designations, preferences and relative participating, optional or other rights, qualifications, limitations or restrictions thereof, as shall be stated and expressed in a resolution or resolutions providing for the issue of such preferred stock adopted by Liberty Broadband's board of directors.  As of December 31, 2018,  no shares of preferred stock were issued.

Common Stock

Liberty Broadband's Series A common stock has one vote per share, Liberty Broadband's Series B common stock has ten votes per share and Liberty Broadband’s Series C common stock has no votes per share (except as otherwise required by applicable law). Each share of the Series B common stock is exchangeable at the option of the holder for one share of Series A common stock.  All series of our common stock participate on an equal basis with respect to dividends and distributions.

As of December 31, 2018, there were 393 thousand shares of Series A and 2.4 million shares of Series C common stock reserved for issuance under exercise privileges of outstanding stock options.