I've noticed that L3 XT cross trade come up quite a bit lately...

I've noticed that L3 XT cross trade come up quite a bit lately with BRM.

Anyone know what the L3 bit is?
This was all I found.

L1 LATE TRADE ? Reason Code A; Genuine book squaring trades.
L2 LATE TRADE ? Reason Code B; Hedging trades.
L3 LATE TRADE ? Reason Code C; Order completion.
L4 LATE TRADE ? Reason Code D; Error rectification.
L5 LATE TRADE ? Reason Code E; Put through trades.

They took a nice size chunk on the close. Probably more Asian investors/associates?

Shame the sp isn't going up like it used to on down market days :/