In any derivative suit instituted by a stockholder of a corporation, it shall be averred in the complaint that the plaintiff was a stockholder of the corporation at the time of the transaction of which such stockholder complains or that such stockholder’s stock thereafter devolved upon such stockholder by operation of law.
Del. Code tit. 8, § 327
Stockholder’s derivative action; allegation of stock ownership
8 Del
Official source: Delaware Code Online. Reproduced from public-domain Delaware statutes; confirm against the official source for the current text. Not legal advice.