457 U.S. 147 (1982) Cited 5,846 times 33 Legal Analyses
Holding that named plaintiff must prove “much more than the validity of his own claim”; the individual plaintiff must show that “the individual's claim and the class claims will share common questions of law or fact and that the individual's claim will be typical of the class claims,” explicitly referencing the “commonality” and “typicality” requirements of Rule 23
Holding that "[t]he controversy involved in this case is undoubtedly still live" in a putative securities class action because "[t]he classes which the plaintiffs seek to represent contain at least some number of persons who sold securities during the periods at issue"
Explaining that if an allegation was not previously discussed with the counselor, and the agent provides a satisfactory explanation for this omission, the "administrative judge shall refer the allegation to the agency for further counseling" before consolidating the allegation with the class complaint