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Note 4 - Investments

12 Months Ended

Dec. 31, 2024

Notes to Financial Statements

Investment Holdings [Text Block]

Note 4. Investments

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

		*December 31, 2024*								*December 31, 2023*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Investments
Debt		$	678,167			$	638,779			$	721,231			$	670,172
Warrants			15,956				18,277				16,526				24,594
Other			36,709				14,637				6,982				6,430
Equity			35,942				26,198				14,443				7,889
Total investments		$	766,774			$	697,891			$	759,182			$	709,085

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

		*December 31, 2024*								*December 31, 2023*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Life Science
Biotechnology		$	118,221			$	97,562			$	145,544			$	117,781
Medical Device			213,564				205,634				147,064				145,019
Technology
Communications			11,711				14,763				19,192				22,188
Consumer-Related			74,421				36,667				105,669				101,327
Data Storage			417				350				417				418
Internet and Media			329				999				329				1,582
Networking			10,070				9,827				5,451				5,297
Power Management			—				—				1,585				2,700
Semiconductors			45				—				45				—
Software			154,040				151,043				164,133				160,749
Sustainability
Energy Efficiency			9,818				9,712				111				13
Other Sustainability			66,151				66,079				98,906				80,370
Healthcare Information and Services
Diagnostics			16,704				13,701				19,735				19,701
Other			39,533				40,144				102				1,366
Software			51,750				51,410				50,899				50,574
Total investments		$	766,774			$	697,891			$	759,182			$	709,085