Irrespective of whether an exemption from reporting was granted or not, DLT MTFs/TSS have an obligation under Article 12 of RTS 24 to maintain an individual transaction identification code for each transaction resulting from the full or partial execution of an order. As described in Field 3 of RTS 22, this number should be disseminated to both the buying and the selling parties regardless of whether such parties are investment firms or natural persons. Therefore Field 3 of RTS 22 must be populated also in case the entity executing the transaction is a natural person.

[DLT Transaction Reporting Q&A 5]