https://en.wikipedia.org/wiki/Custodian_bank"The definition of...

https://en.wikipedia.org/wiki/Custodian_bank

"The definition of 'shareholder' is generally upheld by corporate law rather than securities law. One role of custodians (which may or may not be enforced by securities regulation) is to facilitate theexercise of share ownership rights, for example and processing dividends and other payments, corporate actions, the proceeds of a stock split or a reverse stock split, the ability to vote in the company's annual general meeting (AGM), information and reports sent from the company and so forth. The extent to which such services are offered are a function of the client agreement together with relevant market rules, regulations and laws."