Русско-англо-русский юридический словарь

A controlling block of shares is not necessarily a block that is presumed to be controlling (more than 25 percent) under section 2(a)(9) of the 1940 Act. It may represent the block that results in control or controlling influence. (The Regulation of Money Managers: Mutual Funds and Advisers, Volume 3)

The acquirer thus has an incentive to obtain board approval (or control of the board, through a proxy contest), prior to acquiring a controlling block of shares. (Bloomberg Law)

Not all shareholders are alike and share the same goals—at one extreme, the interests of small (minority) investors are often in conflict with large shareholders (including those holding a controlling block of shares and institutional investors) at the other. (Oregon State University)