N.Y. Comp. Codes R. & Regs. tit. 3, § 322.6
(b) Control means any person, or group of persons acting in concert, directly or indirectly:
(c) A controlling influence shall be presumed to exist when any person, or group of persons acting in concert, directly or indirectly:
(3) owns, controls or holds with power to vote, 25 percent or more of the voting stock or 40 percent or more of any class of stock of the company and is subject to one of the control factors in subparagraphs (i) through (viii) of this paragraph:
For purposes of this Part: