compared to $0.3 million on the sale of two assets during the nine months ended September 30, 2023. The increase was primarily due to the growth in disposition volume during 2024 as compared to 2023. Gains and losses on sale of assets are dependent on levels of disposition activity and the carrying value of the assets relative to their sales prices. As a result, such gains and losses on sales are not necessarily comparable period-to-period.
Net income increased $20.1 million, or 16%, to $144.5 million for the nine months ended September 30, 2024, compared to $124.4 million for the nine months ended September 30, 2023. The change was the result of the growth in the portfolio offset by the items discussed above. After allocation of income to non-controlling interest and preferred stockholders, net income attributable to common stockholders increased $20.0 million, or 17%, to $138.4 million for the nine months ended September 30, 2024, compared to $118.4 million for the nine months ended September 30, 2023.
Liquidity and Capital Resources
The Company’s principal demands for funds include payment of operating expenses, payment of principal and interest on its outstanding indebtedness, dividends and distributions to its stockholders and holders of the units of the Operating Partnership (the “Operating Partnership Common Units”), and future property acquisitions and development.
In May 2024, the Operating Partnership completed an underwritten public offering of $450.0 million in aggregate principal amount of its 5.625% Notes due 2034 (the “2034 Senior Unsecured Public Notes”). Upon completion of the underwritten public offering, the Company terminated $150.0 million of forward-starting interest rate swap agreements as well as the $150.0 million US Treasury lock that hedged the 2034 Senior Unsecured Public Notes, receiving $4.4 million, net upon termination. Considering the effect of the terminated swap agreements, the blended all-in rate to the Company for the 2034 Senior Unsecured Public Notes is 5.65%. The proceeds from the underwritten public offering were used for general corporate purposes, including to reduce amounts outstanding under the senior unsecured revolving credit facility and to fund property acquisitions and development activity.
On August 8, 2024, the Company entered in the Fourth Amended and Restated Revolving Credit Agreement which provides for a $1.25 billion senior unsecured revolving credit facility (the “Revolving Credit Facility”). The Revolving Credit Facility’s interest rate is based on a pricing grid with a range of 72.5 to 140 basis points over SOFR, determined by the Company's credit ratings and leverage ratio, plus a SOFR adjustment of 10 basis points. The margins for the Revolving Credit Facility are subject to adjustment based on changes in the Company's leverage ratio and credit ratings. In addition, in connection with the Company's ongoing environmental, social and governance ("ESG") initiatives, pricing on the Revolving Credit Facility may be reduced if specific ESG rating improvements are achieved.
As of September 30, 2024 the Revolving Credit Facility had a $49.0 million outstanding balance and bore interest of 5.66%, which is comprised of SOFR of 4.83%, the pricing grid spread of 72.5 basis points plus the 10 basis point SOFR adjustment.
The Revolving Credit Facility includes an accordion option that allows the Company to request additional lender commitments up to a total of $2.00 billion. The Revolving Credit Facility will mature in August 2028 with Company options to extend the maturity date to August 2029.
The Company expects to meet its short-term liquidity requirements through cash and cash equivalents held as of September 30, 2024, cash provided from operations, and borrowings under its revolving credit facility. As of September 30, 2024, available cash and cash equivalents, including cash held in escrow, was $13.2 million. As of September 30, 2024, the Company had $49.0 million outstanding on its revolving credit facility and $1.20 billion available for future borrowings, subject to its compliance with covenants.
The Company anticipates funding its long-term capital needs through cash provided from operations, borrowings under its Revolving Credit Facility, and the issuance of debt and common or preferred equity or other instruments convertible into or exchangeable for common or preferred equity.
We continually evaluate alternative financing and believe that we can obtain financing on reasonable terms. However, there can be no assurance that additional financing or capital will be available, or that the terms will be acceptable or