Explanation
In many jurisdictions, it is a requirement to report certain information regarding STRs to senior management and/or the board of directors. This information may be limited to the number of reports filed, the dollar amounts involved and significant trends as observed by compliance personnel. In some cases, if the activity presents a significant or potentially ongoing risk to the institution, the leaders of the institution should be made aware so that high-level decisions can be made regarding potential changes to systems, staffing, products, services or particular relationships maintained by the institution.
Banks are required by the SAR regulations of their federal banking agency to notify the board of directors or an appropriate board committee that SARs have been filed. However, the regulations do not mandate a particular notification format and banks should have flexibility in structuring their format. Therefore, banks may, but are not required to, provide actual copies of SARs to the board of directors or a board committee.
Alternatively, banks may opt to provide summaries, tables of SARs filed for specific violation types, or other forms of notification. Regardless of the notification format used by the bank, management should provide sufficient information on its SAR filings to the board of directors or an appropriate committee in order to fulfill its fiduciary duties, while being mindful of the confidential nature of the SAR.
https://bsaaml.ffiec.gov/manual/AssessingComplianceWithBSARegulatoryRequirements/0

Explanation/Reference: http://pubdocs.worldbank.org/en/834721427730119379/AML-Module-2.pdf