Assets
At June 30, 2024, we had total assets of $24.8 billion, an increase of $3.6 billion or approximately 17.0% from December 31, 2023. The increase in total assets was primarily due to an increase in LHFI, net of deferred fees and costs, of $2.7 billion, and the AFS securities portfolio of $324.5 million, in each case, primarily due to the American National acquisition.
LHFI, net of deferred fees and costs, were $18.3 billion at June 30, 2024, an increase of $2.7 billion or 17.3% from December 31, 2023. At June 30, 2024, quarterly average LHFI, net of deferred fees and costs, increased $3.4 billion or 23.1% from the same period in the prior year. Refer to "Loan Portfolio" within this Item 2 and Note 4 "Loans and Allowance for Loan and Lease Losses" in Part I, Item 1 of this Quarterly Report for additional information on our loan activity.
At June 30, 2024, we had total investments of $3.5 billion, an increase of $307.4 million or 9.7% from December 31, 2023. AFS securities totaled $2.6 billion at June 30, 2024, compared to $2.2 billion at December 31, 2023. At June 30, 2024, total net unrealized losses on the AFS securities portfolio were $420.7 million, compared to $384.3 million at December 31, 2023. HTM securities totaled $810.5 million at June 30, 2024, compared to $837.4 million at December 31, 2023, with net unrealized losses of $44.0 million at June 30, 2024, compared to $29.3 million at December 31, 2023.
Liabilities and Stockholders’ Equity
At June 30, 2024, we had total liabilities of $21.7 billion, an increase of $3.1 billion or approximately 16.7% from December 31, 2023, which was primarily driven by an increase in deposits of $3.2 billion, primarily due to the American National assumed deposits, as well as increased usage of brokered deposits, partially offset by a decrease in total borrowings of $105.1 million.
Total deposits at June 30, 2024 were $20.0 billion, an increase of $3.2 billion or approximately 18.9% from December 31, 2023. At June 30, 2024, quarterly average deposits increased $3.8 billion or 23.1% from the same period in the prior year. Total deposits increased from December 31, 2023, primarily due to a $1.8 billion increase in interest-bearing customer deposits and $564.1 million in demand deposits primarily related to the American National acquisition, as well as a $786.7 million increase in brokered deposits. Refer to “Deposits” within this Item 2 for additional information on this topic.
Total borrowings at June 30, 2024 were $1.2 billion, a decrease of $105.1 million or 8.0% from December 31, 2023, primarily due to paydowns of short-term borrowings due to deposit growth. Refer to Note 7 “Borrowings” in Part I, Item 1 of this Quarterly Report for additional information on our borrowing activity.
At June 30, 2024, our stockholders’ equity was $3.0 billion, an increase of $487.4 million from December 31, 2023. The net increase was primarily attributable to the issuance of common stock as merger consideration in the American National acquisition, partially offset by the increase in other comprehensive losses, primarily due to the increase in net unrealized losses on the AFS securities portfolio. Our consolidated regulatory capital ratios continue to exceed the minimum capital requirements and are considered “well-capitalized” for regulatory purposes. Refer to “Capital Resources” within this Item 2, as well as Note 10 "Stockholders’ Equity" in Part I, Item 1 of this Quarterly Report for additional information on our capital resources.
During the second quarter of 2024, we declared and paid a quarterly dividend on our outstanding shares of Series A Preferred Stock of $171.88 per share (equivalent to $0.43 per outstanding depositary share), consistent with the fourth quarter of 2023 and the second quarter of 2023. During the second quarter of 2024, we also declared and paid cash dividends of $0.32 per common share, consistent with the fourth quarter of 2023 and an increase of $0.02 per share or 6.7% from the second quarter of 2023.