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Note 4 - Investments

3 Months Ended

Mar. 31, 2024

Notes to Financial Statements

Investment Holdings [Text Block]

Note 4. Investments

The following table shows the Company’s investments as of March 31, 2024 and December 31, 2023:

		*March 31, 2024*								*December 31, 2023*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Investments
Debt		$	719,500			$	670,773			$	721,231			$	670,172
Warrants			16,636				23,928				16,526				24,594
Other			13,844				9,192				6,982				6,430
Equity			15,193				7,223				14,443				7,889
Total investments		$	765,173			$	711,116			$	759,182			$	709,085

The following table shows the Company’s investments by industry sector as of March 31, 2024 and December 31, 2023:

		*March 31, 2024*								*December 31, 2023*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Life Science
Biotechnology		$	142,108			$	124,741			$	145,544			$	117,781
Medical Device			164,060				161,155				147,064				145,019
Technology
Communications			17,327				20,185				19,192				22,188
Consumer-Related			105,165				99,876				105,669				101,327
Data Storage			416				426				417				418
Internet and Media			328				1,592				329				1,582
Networking			3,231				3,091				5,451				5,297
Power Management			1,585				2,700				1,585				2,700
Semiconductors			45				—				45				—
Software			159,094				154,908				164,133				160,749
Sustainability
Energy Efficiency			111				8				111				13
Other Sustainability			100,854				71,060				98,906				80,370
Healthcare Information and Services
Diagnostics			19,759				19,729				19,735				19,701
Other			102				949				102				1,366
Software			50,988				50,696				50,899				50,574
Total investments		$	765,173			$	711,116			$	759,182			$	709,085