Significant beneficial owner identification: reporting companies must obtain BEN 1 declarations and serve BEN 4 notices to large non individual members. Reporting companies must identify any individual who is a significant beneficial owner and obtain a declaration in Form BEN-1; where a non individual member holds not less than a threshold of ten percent of shares, voting rights, or rights to dividends, the company must serve a notice seeking ownership information in Form BEN-4 under the prescribed information gathering procedure.