Thank you, Art. For the quarter ended December 31, net income was $0.26 per share.
Looking at some of the expense categories. Management fees totaled about $4.5 million. Taxes, general and administrative expenses totaled about $800,000, and interest expense totaled $5.3 million.
During the quarter ended December 31, net unrealized appreciation on investment was $23 million or $0.58 per share. Net realized losses was about $2.7 million or $0.07 per share. Net unrealized depreciation on our co-facility and notes was $0.10 per share. Net investment income was lower than the dividend by $0.02 per share. Consequently, GAAP NAV went from $12.31 to $12.70 per share. Adjusted NAV, excluding the mark-to-market of our liabilities, was $12.32 per share, up 4.3% from $11.81 per share.
Our entire portfolio, our credit facility and notes are marked to market by our Board of Directors each quarter using the exit price provided by an independent valuation firm, exchanges or independent broker-dealer folks when active markets are available under ASC 820 and 825. In cases where broker-dealer quotes are inactive, we use independent valuation firms to value the investments. Our spillover as of September 30 was $0.22 per share.
We have ample liquidity and are prudently levered. Our GAAP debt-to-equity ratio was 1.2x, down from 1.4x last quarter. While GAAP net debt-to-equity after subtracting cash was 1.1x, down from 1.3x last quarter. Regulatory debt-to-equity ratio was 1.3x, down from 1.5x last quarter. And our regulatory net debt-to-equity ratio after subtracting cash was 1.25, down from 1.4x the last quarter.
With regard to leverage, we have been targeting a debt-to-equity ratio of 1.4x to 1.6x. Our net of cash regulatory asset coverage ratio of 1.2x was well below the low end of our range of this past quarter.
We had ample liquidity to fund we've overdrawn, and we're in compliance with all of our facilities at December 31. We have regularly available borrowing capacity and cash liquidity to support our commitments. We have a strong capital structure with diversified funding sources and no near-term maturity. We have $400 million revolving credit facility maturing in 2023, with a syndicate of 11 banks with $257 million drawn as of December 31, $118 million of unsecured senior security notes maturing 2023, and $228 million of asset-backed debt associated with one of our CLO I due 2031.
Our portfolio remains highly diversified with 100 companies across 42 different industries. 87% is invested in first-lien senior secured debt, including 12% in PSSL, 3% in second-lien debt, and 10% in equity, including 4% in PSSL. Our overall debt portfolio has a weighted average yield of 7.5%. 98% of the portfolio is floating rate and 86% of the portfolio has a LIBOR floor. The average LIBOR floor is 1%.
Now let me turn the call back to Art.