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Note 4 - Investments

6 Months Ended

Jun. 30, 2025

Notes to Financial Statements

Investment Holdings [Text Block]

Note 4. Investments

The following table shows the Company’s investments as of June 30, 2025 and December 31, 2024:

		*June 30, 2025*								*December 31, 2024*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Investments
Debt		$	636,261			$	579,171			$	678,167			$	638,779
Warrants			15,565				21,629				15,956				18,277
Other			55,924				8,451				36,709				14,637
Equity			38,098				13,402				35,942				26,198
Total investments		$	745,848			$	622,653			$	766,774			$	697,891

The following table shows the Company’s investments by industry sector as of June 30, 2025 and December 31, 2024:

		*June 30, 2025*								*December 31, 2024*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Life Science
Biotechnology		$	120,283			$	84,043			$	118,221			$	97,562
Medical Device			239,170				209,087				213,564				205,634
Technology
Communications			517				3,532				11,711				14,763
Consumer-Related			65,352				25,066				74,421				36,667
Data Storage			417				330				417				350
Internet and Media			329				605				329				999
Networking			364				121				10,070				9,827
Semiconductors			—				—				45				—
Software			165,371				158,536				154,040				151,043
Sustainability
Alternative Energy			4,854				4,845				—				—
Energy Efficiency			9,934				9,828				9,818				9,712
Other Sustainability			30,449				23,008				66,151				66,079
Healthcare Information and Services
Diagnostics			17,350				9,940				16,704				13,701
Other			39,575				42,194				39,533				40,144
Software			51,883				51,518				51,750				51,410
Total investments		$	745,848			$	622,653			$	766,774			$	697,891