A statement of beneficial ownership of common stock by certain persons

Annual report which provides a comprehensive overview of the company for the past year

Report of unscheduled material events or corporate event

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

Report of unscheduled material events or corporate event

Report of unscheduled material events or corporate event

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

Amendment to a previously filed 8-A12B

Securities offered to employees pursuant to employee benefit plans

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