A statement of beneficial ownership of common stock by certain persons

Report of unscheduled material events or corporate event

Securities offered to employees pursuant to employee benefit plans

Securities offered to employees pursuant to employee benefit plans

Simplified registration form

Official notification to shareholders of matters to be brought to a vote ("Proxy")

Quarterly report which provides a continuing view of a company's financial position

Form of prospectus reflecting facts events constituting substantive change from last form

Proxy soliciting materials. Revised preliminary material

A preliminary proxy statement providing notification matters to be brought to a vote