AMREP, through its subsidiaries, is engaged in the real estate business. The company conducts its real estate business primarily in the City of Rio Rancho and certain adjoining areas of Sandoval County, NM. The company sells both developed and undeveloped lots to national, regional and local homebuilders, commercial and industrial property developers and others. The company also acquires land, focusing primarily in New Mexico, after completion of market research, soil tests, environmental studies and other engineering work, a review of zoning and other governmental requirements, discussions with homebuilders or other end-users of the property and financial analysis of the project and estimated development costs.

Hawthorn Bancshares is a bank holding company. The company owns all of the issued and outstanding capital stock of Union State Bancshares, Inc., which in turn owns all of the issued and outstanding capital stock of Hawthorn Bank. Hawthorn Bank is a service bank conducting a general banking and trust business, providing its customers checking and savings accounts, internet banking, debit cards, certificates of deposit, trust services, brokerage services, safety deposit boxes and a range of lending services, including commercial and industrial loans, single payment personal loans, installment loans and commercial and residential real estate loans.

Opko Health is a healthcare company. The company manages two segments: Diagnostics, which provides laboratory testing services utilized by healthcare providers in the detection, diagnosis, evaluation, monitoring, and treatment of diseases, including esoteric testing, molecular diagnostics, anatomical pathology, genetics, women's health and correctional healthcare; and Pharmaceutical, which includes Rayaldee for the treatment of secondary hyperparathyroidism in adults with chronic kidney disease (CKD) and vitamin D insufficiency, and Alpharen (Fermagate Tablets) for the treatment of hyperphosphatemia in CKD patients requiring regular hemodialysis.

PennantPark Investment is a closed-end, externally managed, non-diversified investment company. The company's objectives are to generate both current income and capital appreciation while seeking to preserve capital through debt and equity investments primarily made to United States middle-market companies in the form of first lien secured debt, second lien secured debt and subordinated debt and equity investments.

STAAR Surgical designs, develops, manufactures, and sells implantable lenses for the eye and delivery systems used to deliver the lenses into the eye. The company is a manufacturer of lenses used worldwide in corrective or refractive surgery. The company's principal products are implantable Collamer lenses (ICLs) used in refractive surgery and intraocular lenses (IOLs) used in cataract surgery. ICLs, consisting of the company's ICL family of products, including the Toric implantable Collamer lenses and EVO+ Visian ICL, are intraocular lenses used to correct refractive conditions. IOLs are prosthetic intraocular lenses used to restore vision that has been affected by cataracts.