Rule 10b- investment & finance definition

An SEC rule that prohibits firms engaged in a primary or secondary distribution from soliciting orders for the security in distribution by any means other than by the prospectus.

An SEC rule that prohibits the tendering of stock by means of a short sale. See also short tender.

An SEC rule that prohibits brokers, dealers, issuers, or underwriters participating in a securities distribution from purchasing the securities before they have been offered to the public.

An SEC rule that limits the use of stabilizing bids by underwriters of a new security issue.

An SEC rule that prohibits market manipulation during a rights offering.