5,500,000 Shares NIGHTHAWK RADIOLOGY HOLDINGS, INC. COMMON STOCK (PAR VALUE $0.001 PER SHARE) UNDERWRITING AGREEMENTNightHawk Radiology Holdings Inc • October 27th, 2006 • Services-misc health & allied services, nec • New York
Company FiledOctober 27th, 2006 Industry JurisdictionCertain shareholders of NightHawk Radiology Holdings, Inc., a Delaware corporation (the “Company”), named in Schedule I hereto (the “Selling Shareholders”), propose to sell to the several Underwriters named in Schedule II hereto (the “Underwriters”), an aggregate of 5,500,000 shares (the “Firm Shares”) of the Company’s Common Stock, par value $0.001 per share, (the “Common Stock”), each Selling Shareholder selling the amount set forth opposite such Selling Shareholder’s name in Schedule I hereto.