Operating expenses for the three months ended June 30, 2025 and 2024 were $21.2 million and $19.6 million, respectively. Operating expenses increased for the three months ended June 30, 2025 from the three months ended June 30, 2024 primarily due to an increase in interest and other debt financing expenses, excise tax expenses, and professional fees. Operating expenses per share for the three months ended June 30, 2025 and 2024 were $0.57 and $0.50, respectively.
Operating expenses remained relatively unchanged for the six months ended June 30, 2025 and 2024 at $41.0 million and $40.9 million, respectively. Operating expenses per share for the six months ended June 30, 2025 and 2024 were $1.11 and $1.03, respectively.
Management fees remained relatively unchanged for the three months ended June 30, 2025 and 2024 at $3.9 million and $3.9 million, respectively. Management fees per share for the three months ended June 30, 2025 and 2024 were $0.11 and $0.10 per share, respectively.
Management fees remained relatively unchanged for the six months ended June 30, 2025 and 2024 at $8.0 million and $7.9 million, respectively. Management fees per share for the six months ended June 30, 2025 and 2024 were $0.21 and $0.20 per share, respectively.
Incentive fees for the three months ended June 30, 2025 and 2024 were $3.5 million and $3.6 million, respectively. Incentive fees remained relatively unchanged for the three months ended June 30, 2025 from the three months ended June 30, 2024. For the three months ended June 30, 2025, $2.3 million of the incentive fees were payable in cash and $1.2 million were deferred and accrued. For the three months ended June 30, 2025, $2.9 million of the incentive fees were payable in cash and $0.7 million were deferred and accrued. Incentive fees per share for the three months ended June 30, 2025 and 2024 were $0.09 and $0.09, respectively.
Incentive fees for the six months ended June 30, 2025 and 2024 were $7.5 million and $8.3 million, respectively. Incentive fees decreased for the six months ended June 30, 2025 from the six months ended June 30, 2024 due to a decrease in net investment income. For the six months ended June 30, 2025, $5.4 million of the incentive fees were payable in cash and $2.1 million were deferred and accrued. For the six months ended June 30, 2024, $6.5 million of the incentive fees were payable in cash and $1.8 million were deferred and accrued. Incentive fees per share for the six months ended June 30, 2025 and 2024 were $0.20 and $0.20, respectively.
Net Investment Income
Net investment income for the three months ended June 30, 2025 and 2024 was $13.9 million and $14.6 million, respectively. Net investment income decreased for the three months ended June 30, 2025 from the three months ended June 30, 2024 primarily due to an increase in total operating expenses, offset by an increase in investment income. Net investment income per share for the three months ended June 30, 2025 and 2024 was $0.38 and $0.37, respectively.
Net investment income for the six months ended June 30, 2025 and 2024 was $29.5 million and $33.3 million, respectively. Net investment income decreased for the six months ended June 30, 2025 from the six months ended June 30, 2024 primarily due to a decrease in investment income. Net investment income per share for the six months ended June 30, 2025 and 2024 was $0.79 and $0.84, respectively.
Net Realized Gain (Loss) on Investments
The net realized loss on investments of $1.5 million for the three months ended June 30, 2025 was attributable to a realized loss on our senior secured term loan investment in JobGet Holdings, Inc. (fka Snagajob.com, Inc.) upon conversion to equity. There were no net realized gains or losses on investments for the three months ended June 30, 2024.
The net realized loss on investments of $4.5 million for the six months ended June 30, 2025 was attributable to a realized gain on our investment in Gynesonics, Inc. partially offset by realized losses on our investments in Quantum Corporation and JobGet Holdings, Inc. (fka Snagajob.com, Inc.). There were no net realized gains or losses on investments for the six months ended June 30, 2024.
Net Change in Unrealized Gain (Loss) on Investments
Net change in unrealized gain on investments of $4.4 million for the three months ended June 30, 2025 was primarily due to an increase in fair value of our investments in Blueshift Labs, Inc, Hurricane Cleanco Limited, FiscalNote Inc., and Kin Insurance, Inc. The increase in fair value was partially offset by a decrease in the fair value of our investments in 3PL Central LLC and Marley Spoon SE. Net change in unrealized loss on investments of $6.3 million for the three months ended June 30, 2024 was primarily due to a decrease in the fair value of our convertible note investment in Snagajob.com, Inc., our senior secured loans to Snagajob.com, Inc., Vesta Payment Solutions, Inc., and FiscalNote, Inc., offset by increases in our preferred stock investment in Carecloud, Inc., and our senior secured loan to Cloudpay, Inc.