Allison will speak more about our share repurchase program and modified Dutch auction tender offer later in this call. Given Reddit’s impending IPO, coupled with reports of several other potential high-profile IPOs, we believe the IPO market may begin to reopen. With our existing portfolio as well as the investments we have in process, coupled with our remaining capital, we believe our portfolio is well positioned to create value for our shareholders. Thank you for your attention. And with that, I will hand it over to Allison Green, our Chief Financial Officer.
Allison Green: Thank you, Mark. I would like to follow Mark’s update with a more detailed review of our fourth quarter and financial results as of December 31, including our investment activity, portfolio company monetization, current liquidity and the status of our share repurchase program and current modified Dutch auction tender offer. First, I will review our investment activity. During the fourth quarter, we invested a total of $4.6 million in new and follow-on investments. These include a $1.6 million investment in the sponsor economics of Colombier Acquisition Corp. II for which we received Class B and Class W units; a $2.7 million follow-on secondary investment in FourKites common shares, bringing our total investment in FourKites in 2023 to $8.5 million and a $325,000 follow-on investment through SuRo Capital Sports and Xpoint’s convertible notes.
Over the course of the fourth quarter, we sold our remaining public common shares in NewLake Capital Partners and continue to monetize our public common shares in Forge and Nextdoor and warrants in PublicSquare. Notably, we sold 1,465,994 shares of Forge for approximately $5.2 million in net proceeds, resulting in a realized gain of approximately $3.9 million. We also sold 303,963 warrants of PublicSquare for approximately $300,000 in net proceeds, resulting in a realized gain of approximately $200,000. In addition to sales of our unrestricted publicly traded investments, during the fourth quarter, we received a final payment of approximately $300,000 in proceeds from Second Avenue related to principal repayment and interest on the 15% term loan due December 2023.
Additionally, we exited our position in Churchill Sponsor VI for a realized loss of approximately $200,000 after it was announced it would not consummate a business combination and we would redeem its outstanding shares of Class A common stock. Finally, during the quarter, we received a distribution of approximately $116,000 related to our limited partner fund investment in True Global Ventures 4 Plus. Additionally, subsequent to year-end, we sold our remaining public common shares in Nextdoor and continued to monetize our warrants in PublicSquare. As Mark mentioned, subsequent to year-end through today, we completed a $10 million investment in Liquid Death’s Series F-1 preferred shares. As it relates to our pending investments subsequent to year-end, we are in the final stages of documentation on two investments totaling $25 million in aggregate.
In the normal course of business, SuRo Capital may enter into investment agreements under which it commits to make an investment in a portfolio company at some future date or over a specified period of time. We are frequently in negotiations with various private companies with respect to investments in such companies. Investments in private companies are generally subject to satisfaction of applicable closing conditions. Please turn to Slide 7. Segmented by six general investment themes, the top allocation of our investment portfolio at year-end is to education technology, representing approximately 38% of the investment portfolio at fair value. Marketplaces was the second largest category, representing approximately 20% of our portfolio. The financial technology and services category accounted for approximately 18% of our investment portfolio, and approximately 17% of our portfolio is invested in cloud and big data companies.
Social and mobile accounted for approximately 8% of the fair value of our portfolio, and sustainability accounted for less than 1% of the fair value of our portfolio as of December 31. Please turn to Slide 8. We are pleased to report that we ended the fourth quarter and fiscal year 2023 with an NAV per share of $7.99, which is consistent with our financial reporting. The decrease in NAV per share from $8.41 at the end of Q3 was primarily driven by a $0.36 per share decrease resulting from unrealized depreciation of our portfolio investments during the quarter in addition to an $0.11 per share decrease due to net investment loss and a $0.06 per share decrease due to the impact of stock-based compensation. The decrease in NAV per share was partially offset by a $0.10 per share increase due to net realized gains on our investments during the quarter.
At December 31, 2023, there were 25,445,805 shares of the company’s common stock outstanding. Presently, there are 25,353,284 shares of the company’s common stock outstanding. Regarding SuRo Capital’s liquidity position as of December 31. We ended the quarter with approximately $99 million of liquid assets, including approximately $28.2 million in cash, $63.8 million in short-term U.S. treasuries and approximately $7 million in unrestricted public securities. The approximately $7 million of unrestricted public securities held as of year-end represent our shares in Forge, Nextdoor and Skillsoft and our warrants in PublicSquare. Our common shares in PublicSquare remain restricted until July 19, 2024. Please turn to Slide 9. As previously discussed, on August 7, 2023, our board of directors authorized a $5 million expansion to the share repurchase program to $60 million and an extension of the share repurchase program through October 31, 2024.
During the year ended December 31, 2023, under both the share repurchase program and the 2023 modified Dutch auction tender offer, the company repurchased 3.2 million shares of its common stock for approximately $14.2 million and have a remaining $20.7 million approved to deploy via the share repurchase program. Since the inception of the share repurchase program in August 2017, we have repurchased a total of 6,018,501 shares of our common stock for a total deployment of approximately $39.3 million of the $60 million authorized by the board. This does not include repurchases under various tender offers during this time period. Approximately $20.7 million remain authorized under the share repurchase program currently set to expire on October 31, 2024.
