20250306 08405400 1.0 TRUE Blocks Company Interest Polygon layer which contains the Overall Parents of the Local Companies. Note that a Shareholder may be directly involved in the Participating Group as well as a company in which it has shares. This layer includes only valid blocks for all block types. The layer is 'stacked', that is, it contains multiple features per block, with each feature describing the interests of the Overall Parents of the Local Companies.