| Tag | Field Name | Req'd | Comments | |
|---|---|---|---|---|
| 539 | NoNestedPartyIDs | N | Repeating group below should contain unique combinations of NestedPartyID, NestedPartyIDSource, and NestedPartyRole | |
| 524 | NestedPartyID | N | Used to identify source of NestedPartyID. Required if NestedPartyIDSource is specified. Required if NoNestedPartyIDs > 0. |
| 525 | NestedPartyIDSource | N | Used to identify class source of NestedPartyID value (e.g. BIC). Required if NestedPartyID is specified. Required if NoNestedPartyIDs > 0. |
| 538 | NestedPartyRole | N | Identifies the type of NestedPartyID (e.g. Executing Broker). Required if NoNestedPartyIDs > 0. |
| 545 | NestedPartySubID | N | Sub-identifier (e.g. Clearing Acct for NestedPartyID=Clearing Firm) if applicable |