1. Investment firms which execute transactions in financial instruments shall report complete and accurate details of such transactions to the competent authority as quickly as possible, and no later than the close of the following working day.
The competent authorities shall, in accordance with Article 85 of Directive 2014/65/EU, establish the necessary arrangements in order to ensure that the following competent authorities also receive that information:
(a) the competent authority of the most relevant market in terms of liquidity for those financial instruments;
(b) the competent authorities responsible for the supervision of the transmitting investment firms;
(c) the competent authorities responsible for the supervision of the branches which have been part of the transaction; and
(d) the competent authority responsible for the supervision of the trading venues used.
The competent authority referred to in the first subparagraph shall without undue delay make available to ESMA any in
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