Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2025		Sep. 30, 2025
Assets
Investments, at fair value	$ 8,639,231	[1]	$ 8,769,389	[2]
Cash	58,445		0
Cash equivalents	25,865		11,935
Foreign currencies (cost of $9,406 and $11,685, respectively)	9,659		11,681
Restricted cash	32,148		7,107
Restricted cash equivalents	34,425		81,720
Interest receivable	72,129		68,031
Receivable for investments	6,701		7,273
Net unrealized appreciation on derivatives	11,110		12,129
Other assets	4,252		9,034
Total Assets	8,893,965		8,978,299
Liabilities
Debt	4,903,076		4,926,778
Less unamortized debt issuance costs	(23,849)		(26,005)
Debt less unamortized debt issuance costs	4,879,227		4,900,773
Net unrealized depreciation on derivatives	5,230		5,023
Interest payable	49,092		38,254
Management and income incentive fees payable	39,637		40,884
Accrued trustee fees	605		1,039
Accounts payable and other liabilities	11,020		9,759
Total Liabilities	4,984,811		4,995,732
Commitments and Contingencies (Note 8)
Net Assets
Preferred stock, par value $0.001 per share, 1,000,000 shares authorized, zero shares issued and outstanding as of December 31, 2025 and September 30, 2025	0		0
Common stock, par value $0.001 per share, 500,000,000 shares authorized, 263,384,785 and 266,008,083 shares issued and outstanding as of December 31, 2025 and September 30, 2025, respectively	263		266
Paid in capital in excess of par	3,995,213		4,031,117
Distributable earnings (losses)	(86,322)		(48,816)
Total Net Assets	3,909,154		3,982,567
Total Liabilities and Total Net Assets	$ 8,893,965		$ 8,978,299
Number of common shares outstanding (in shares)	263,384,785		266,008,083
Net asset value per common share (in dollars per share)	$ 14.84		$ 14.97
Common stock, shares authorized (in shares)	500,000,000		500,000,000
Non-controlled/non-affiliate company investments
Assets
Investments, at fair value	$ 8,338,531	[1]	$ 8,463,764	[2]
Non-controlled affiliate company investments
Assets
Investments, at fair value	290,019	[1],[3]	293,763	[2],[4]
Controlled affiliate company investments
Assets
Investments, at fair value	$ 10,681	[1],[5]	$ 11,862	[2],[6]

[1] The fair values of investments were valued using significant unobservable inputs, unless noted otherwise. See Note 6. The fair value of loan investments may include the impact of the unfunded commitment being valued below par.

[2] The fair values of investments were valued using significant unobservable inputs, unless noted otherwise. See Note 6. The fair value of loan investments may include the impact of the unfunded commitment being valued below par.

[3] As defined in the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns five percent or more of the portfolio company's voting securities (“non-controlled affiliate”). Transactions related to investments in non-controlled affiliates for the three months ended December 31, 2025 were as follows: Portfolio CompanyFair value as of September 30, 2025 Gross additions(a) Gross reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of December 31, 2025Interest, dividend and fee incomeAbita Brewing Co. LLC$5,216 $3,344 $(2,993)$(129)$— $5,438 $32 Bayside Opco, LLC33,986 304 (39)760 — 35,011 816 Benetech, Inc.2,089 — (52)30 — 2,067 — Chestnut Optical Midco, Inc.101,952 2,104 — (333)— 103,723 863 Elite Dental Partners LLC10,692 637 — (681)— 10,648 80 Fleet Farm Group LLC33,243 218 — (2,210)— 31,251 226 G & H Wire Company, Inc.6,070 68 (14)(1,156)— 4,968 75 IMPLUS Footcare, LLC23,769 446 — 561 — 24,776 326 Opening Day Borrower 111 LLC23,236 7,390 (6,033)(2,320)— 22,273 129 Reaction Biology Corporation7,259 296 — (419)— 7,136 90 SPF Borrower LLC37,469 83 (83)(1,241)— 36,228 736 Switchfly LLC8,782 4 — (2,286)— 6,500 5 Total Non-Controlled Affiliates$293,763 $14,894 $(9,214)$(9,424)$— $290,019 $3,378  (a) Gross additions could include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions could include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities.

[4] As defined in the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns five percent or more of the portfolio company's voting securities (“non-controlled affiliate”). Transactions related to investments in non-controlled affiliates for the year ended September 30, 2025 were as follows: Portfolio CompanyFair value as of September 30, 2024 Gross additions(a) Gross reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of September 30, 2025Interest, dividend and fee incomeAbita Brewing Co. LLC$6,000 $11,690 $(9,725)$(2,749)$— $5,216 $114 Bayside Opco, LLC29,127 1,165 (156)3,850 — 33,986 3,263 Benetech, Inc.1,793 — (189)485 — 2,089 8  Chestnut Optical Midco, Inc.(c) 93,864 3,717 — 4,371 — 101,952 3,440 Elite Dental Partners LLC11,696 1,145 — (2,149)— 10,692 223 Fleet Farm Group LLC— 32,523 — 720 — 33,243 416 G & H Wire Company, Inc.— 6,657 — (587)— 6,070 251 IMPLUS Footcare, LLC— 23,769 — — — 23,769 238 Opening Day Borrower 111 LLC24,936 12,900 (8,225)(6,375)— 23,236 303 Reaction Biology Corporation— 10,426 (1,684)(1,483)— 7,259 182 SPF Borrower LLC36,653 620 (328)524 — 37,469 2,994 Switchfly LLC7,313 2,547 (1,427)349 — 8,782 26 Total Non-Controlled Affiliates$211,382 $107,159 $(21,734)$(3,044)$— $293,763 $11,458  (a) Gross additions could include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions could include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities. (c) Formerly known as Imperial Optical Midco Inc.

[5] As defined in the 1940 Act, the Company is deemed to be both an “affiliated person” of and “control” this portfolio company as the Company owns more than 25% of the portfolio company's outstanding voting securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement) (“controlled affiliate”). Transactions related to investments in controlled affiliates for the three months ended December 31, 2025 were as follows: Portfolio CompanyFair value as of September 30, 2025 Gross additions(a) Gross reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of December 31, 2025Interest, dividend and fee incomeMMan Acquisition Co.$11,862 $133 $— $(1,314)$— $10,681 $136 Total Controlled Affiliates$11,862 $133 $— $(1,314)$— $10,681 $136  (a) Gross additions could include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions could include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities.

[6] As defined in the 1940 Act, the Company is deemed to be both an “affiliated person” of and “control” this portfolio company as the Company owns more than 25% of the portfolio company's outstanding voting securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement) (“controlled affiliate”). Transactions related to investments in controlled affiliates for the year ended September 30, 2025 were as follows: Portfolio CompanyFair value as of September 30, 2024 Gross additions(a) Gross reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of September 30, 2025Interest, dividend and fee incomeMMan Acquisition Co.$12,205 $490 $— $(833)$— $11,862 $510 Total Controlled Affiliates$12,205 $490 $— $(833)$— $11,862 $510  (a) Gross additions could include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions could include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities.