The report noted that since the compiling of data in 2001, the number of both City and United season ticket holders had risen; expansion of United's ground and City's move to the City of Manchester Stadium have caused season ticket sales to increase further. Man City also has a very notable rivalry with that of Liverpool F.C. In the late 1980s, City fans started a craze of bringing inflatable objects to matches, primarily oversized bananas. One disputed explanation for the craze is that in a match against West Bromwich Albion chants from fans calling for the introduction of Imre Varadi as a substitute mutated into "Imre Banana". Terraces packed with inflatable-waving supporters became a frequent sight in the 1988–89 season as the craze spread to other clubs (inflatable fish were seen at Grimsby Town), with the phenomenon reaching a peak at City's match at Stoke City on 26 December 1988, a match declared by fanzines as a fancy dress party. In 2010, City supporters adopted an exuberant dance, dubbed The Poznań, from fans of Polish club Lech Poznań. The holding company of Manchester City F.C., Manchester City Limited, is a private limited company, with approximately 54 million shares in issue. The club has been in private hands since 2007, when the major shareholders agreed to sell their holdings to UK Sports Investments Limited (UKSIL), a company controlled by former Thailand prime minister Thaksin Shinawatra. UKSIL then made a formal offer to buy the shares held by several thousand small shareholders. Prior to the Thaksin takeover, the club was listed on the specialist independent equity market PLUS (formerly OFEX), where it had been listed since 1995. On 6 July 2007, having acquired 75% of the shares, Thaksin de-listed the club and re-registered it as a private company. By August UKSIL had acquired over 90% of the shares, and exercised its rights under the Companies Act to "squeeze out" the remaining shareholders, and acquire the entire shareholding. Thaksin Shinawatra became chairman of the club and two of Thaksin's children, Pintongta and Oak Chinnawat also became directors. Former chairman John Wardle stayed on the board for a year, but resigned in July 2008 following Nike executive Garry Cook's appointment as executive chairman in May. The club made a pre-tax loss of £11m in the year ending 31 May 2007, the final year for which accounts were published as a public company.