Del. Code tit. 6, §§ 18-1206

Members of a statutory public benefit limited liability company or assignees of limited liability company interests in a statutory public benefit limited liability company owning individually or collectively, as of the date of instituting such derivative suit, at least 2% of the then-current percentage or other interest in the profits of the limited liability company or, in the case of a limited liability company with limited liability company interests listed on a national securities exchange, the lesser of such percentage or limited liability company interests of at least $2,000,000 in market value, may maintain a derivative lawsuit to enforce the requirements set forth in § 18-1204(a) of this title.