0001513363 2025-11-06 2025-11-06 false 0001513363 FIDUS INVESTMENT Corp 8-K 2025-11-06 MD 814-00861 27-5017321 1603 Orrington Avenue Suite 1005 Evanston IL 60201 847 859-3940 false false false false Common Stock, par value $0.001 per share FDUS NASDAQ false