In sociology and anthropology, an action group or task group is a group of people joined temporarily to accomplish some task or take part in some organized collective action. As the members of the action group are brought together on a single occasion and then disband, they cannot be regarded as constituting a full-fledged social group, for which they would need to interact recurrently in accordance with their social identities. In shareholder context Action Groups are often formed by many shareholders when they disagree with actions by the Board of Directors of a Public Company or the Government like the forced Nationalisation of Northern Rock, Railtrack with 49,000 members. Action groups are co-ordinated by private investors in shareholder associations or their legal representatives in court. Institutional investors often find loose alliances with private investor lead shareholder association actions groups useful in applying mass political pressure or to publicly embarrass Directors at Annual general meetings into making changes. The largest established shareholder action group associations are Sveriges Aktiesparares Riksförbund (the Swedish Shareholders' Association) part of the Euroshareholders group in the UK ShareSoc and UKSA (UK Shareholder Association),. American Shareholders Association, Australian Shareholders Association, and Japan Sōkaiya also have action groups. In Latin American context In Cuba and elsewhere in Latin America, the word "action group" () was given to violent activists who gathered together to perform violent guerrilla activities e.g. (see Antonio Guiteras, Fidel Castro, Emilio Tro, Lauro Blanco, and Rolando Masferrer when young university students) . Commonly regarded as gang-related killing there were said to have been 200 of these killings in the Grau administration alone. (Martin, Lionel. The Early Fidel: Roots of Castro's Communism. 1978. Lyle Stuart, Secaucus New Jersey; 1st ed, p. 25). . In Nigeria References External links Student sets up action group to lobby for 360p Telegraph, 16 October 2001 Defeat for Railtrack shareholders BBC News, 14 October 2005 49,000-strong Railtrack Private Shareholders Action Group Guardian, 15 October 2005, "Railtrack shareholders lose court battle for compensation" Roger Lawson of the UK Shareholders Association said that there was a 'good chance' that they would appeal the decision. ShareSoc the UK Individual Shareholder Association UKISS UK Shareholders Association UKSA American Shareholders Association Dutch Shareholders Association Euroshareholders Sociological terminology Anthropology