  | Repeating Group 948 | NoNested3PartyIDs |  |   | Repeating group below should contain unique combinations of Nested3PartyID, Nested3PartyIDSource, and Nested3PartyRole | Added FIX.4.4
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  | 949 | Nested3PartyID | ID |   | Used to identify source of Nested3PartyID. Required if Nested3PartyIDSource is specified. Required if NoNested3PartyIDs > 0. | Added FIX.4.4
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  | 950 | Nested3PartyIDSource | Src |   | Used to identify class source of Nested3PartyID value (e.g. BIC). Required if Nested3PartyID is specified. Required if NoNested3PartyIDs > 0. | Added FIX.4.4
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  | 951 | Nested3PartyRole | R |   | Identifies the type of Nested3PartyID (e.g. Executing Broker). Required if NoNested3PartyIDs > 0. | Added FIX.4.4
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  | 2382 | Nested3PartyRoleQualifier | Qual |   |  | Added EP179
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  | Component(-) | NstdPtys3SubGrp | Sub |   | Repeating group of Nested3Party sub-identifiers. | Added FIX.4.4
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  | 637 | LegLastPx | LastPx |   |  | Added EP150
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  | 686 | LegPriceType | PxTyp |   |  | Added EP150
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  | 675 | LegSettlCurrency | SettlCcy |   |  | Added EP150
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  | 2900 | LegSettlCurrencyCodeSource | SettlCcySrc |   |  | Added EP273
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  | 1689 | LegShortSaleExemptionReason | ShrtSaleExmptnRsn |   |  | Added EP150
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  | 1418 | LegLastQty | LastQty |   |  | Added EP150
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  | 1591 | LegQtyType | QtyTyp |   |  | Added EP150
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