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Consolidated Statements of Assets and Liabilities (Parenthetical) (unaudited) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Investments at cost | $ 895,168 | [1],[2],[3] | $ 828,693 | [4],[5],[6]
Common Stock, par value | $ 0.001 |  | $ 0.001 |
Common Stock, shares authorized | 100,000,000 |  | 100,000,000 |
Common Stock, shares issued | 25,265,808 |  | 24,727,788 |
Common Stock, shares outstanding | 25,265,808 |  | 24,727,788 |
Control Investments |  |  |  |
Investments at cost | $ 6,832 |  | $ 17,915 |
Affiliate Investments |  |  |  |
Investments at cost | 55,747 |  | 55,804 |
Non-control/Non-affiliate Investments |  |  |  |
Investments at cost | $ 832,589 |  | $ 754,974 |
[1] | (a) See Note 3 to the consolidated financial statements for portfolio composition by geographic location.
[2] | (b) Equity ownership may be held in shares or units of companies related to the portfolio companies.
[3] | (c) All debt investments are income producing, unless otherwise indicated. Equity investments are non-income producing unless otherwise noted.
[4] | (a) See Note 3 to the consolidated financial statements for portfolio composition by geographic location.
[5] | (b) Equity ownership may be held in shares or units of companies related to the portfolio companies.
[6] | (c) All debt investments are income producing, unless otherwise indicated. Equity investments are non-income producing unless otherwise noted.

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