Note 4 - Investments

12 Months Ended

Dec. 31, 2025

Notes to Financial Statements

Investment Holdings [Text Block]

Note 4. Investments

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

		*December 31, 2025*								*December 31, 2024*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Investments
Debt		$	602,488			$	596,025			$	678,167			$	638,779
Warrants			14,868				16,648				15,956				18,277
Other			45,258				3,444				36,709				14,637
Equity			42,655				31,127				35,942				26,198
Total investments		$	705,269			$	647,244			$	766,774			$	697,891

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

		*December 31, 2025*								*December 31, 2024*
		*Cost*				*Fair Value*				*Cost*				*Fair Value*
		(In thousands)
Life Science
Biotechnology		$	94,280			$	61,829			$	118,221			$	97,562
Medical Device			227,893				222,485				213,564				205,634
Technology
Communications			522				3,142				11,711				14,763
Consumer-Related			31,204				21,846				74,421				36,667
Data Storage			417				230				417				350
Internet and Media			329				151				329				999
Networking			364				—				10,070				9,827
Semiconductors			—				—				45				—
Software			199,608				190,911				154,040				151,043
Sustainability
Alternative Energy			4,914				4,905				—				—
Energy Efficiency			125				9				9,818				9,712
Other Sustainability			50,321				49,315				66,151				66,079
Healthcare Information and Services
Diagnostics			11,553				11,369				16,704				13,701
Other			38,668				34,508				39,533				40,144
Software			45,071				46,544				51,750				51,410
Total investments		$	705,269			$	647,244			$	766,774			$	697,891