July 31, 2024 and 2023 was $2.0 thousand and $0.6 million, respectively. The provision for income tax recorded for the nine months ended July 31, 2023 reflects the realization of withholding taxes on customer deposits.
Series B preferred stock dividends
Dividends recorded on our Series B Preferred Stock were $2.4 million for each of the nine month periods ended July 31, 2024 and 2023.
Net loss attributable to noncontrolling interests
For the nine months ended July 31, 2024 and 2023, net loss attributable to noncontrolling interest totaled $(3.5) million and $(2.8) million, respectively, for the Groton Project tax equity financing transaction with East West Bank.
For the nine months ended July 31, 2024 and 2023, net (loss) income attributable to noncontrolling interest totaled $(0.5) million and $1.4 million, respectively, for the LIPA Yaphank Project tax equity financing transaction with REI.
For the nine months ended July 31, 2024, net loss attributable to noncontrolling interest totaled $(28.6) million for the Derby Projects tax equity financing transaction with Franklin Park. The loss is primarily driven by the Investment Tax Credit (“ITC”) attributable to the noncontrolling interest for the 2023 tax year. The ITC reduces the noncontrolling interest’s claim on hypothetical liquidation proceeds in the HLBV waterfall and is nonrecurring. The loss also is a result of accelerated depreciation allocated to the noncontrolling interest under the HLBV method. The above noted items resulted in a reduction in liquidation proceeds which drove the loss in the nine months ended July 31, 2024. There was no comparable net loss for the nine months ended July 31, 2023, as the Derby Projects began operations in the first quarter of fiscal year 2024.
Net loss attributable to common stockholders and net loss per common share
Net loss attributable to common stockholders represents the net loss for the period less the preferred stock dividends on the Series B Preferred Stock. For the nine months ended July 31, 2024 and 2023, net loss attributable to common stockholders was $87.0 million and $79.6 million, respectively, and net loss per common share for each of the periods presented was $0.19. The increase in net loss attributable to common stockholders is primarily due to the increased loss from operations, offset by the increased loss attributable to noncontrolling interests. The net loss per common share for the nine months ended July 31, 2024 benefited from the higher number of weighted average shares outstanding due to share issuances since July 31, 2023.
LIQUIDITY AND CAPITAL RESOURCES
Overview, Cash Position, Sources and Uses
Our principal sources of cash have been proceeds from the sale of our products and projects, electricity generation revenues, research and development and service agreements with third parties, sales of our common stock through public equity offerings, and proceeds from debt, project financing and tax monetization transactions. We have utilized this cash to accelerate the commercialization of our solid oxide platforms, develop new capabilities to separate and capture carbon, develop and construct project assets, invest in capital improvements and expansion of our operations, perform research and development, pay down existing outstanding indebtedness, and meet our other cash and liquidity needs.
As of July 31, 2024, unrestricted cash and cash equivalents totaled $159.3 million compared to $250.0 million as of October 31, 2023. During the year ended October 31, 2023 and the nine months ended July 31, 2024, the Company invested in United States (U.S.) Treasury Securities. The amortized cost of the U.S. Treasury Securities outstanding totaled $107.8 million as of July 31, 2024 compared to $103.8 million as of October 31, 2023 and is classified as Investments - short-term on the Consolidated Balance Sheets.
On April 10, 2024, the Company entered into Amendment No. 1 (the “Amendment”) to the Open Market Sale Agreement, dated July 12, 2022 (the “2022 Sales Agreement”), with Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canaccord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC (each, an “Agent” and together, the “Agents”) (the 2022 Sales Agreement