A statement of beneficial ownership of common stock by certain persons

Report of unscheduled material events or corporate event

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

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

Report of unscheduled material events or corporate event

An annual report of employee stock purchase, savings and similar plans

Non-management revised preliminary proxy soliciting materials

Preliminary proxy statement containing contested solicitations

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

Amendment to a previously filed 8-A12B