Galaxy... GXY... Chart..., page-1745

I researched it further as I doubted myself (correctly). Sorry for giving you the wrong information.
Here is what I found:
Put Throughs – a Crossing that results in the Cash Market Products the subject of the transaction being sold by a nominee that holds those Cash Market Products on behalf of a Funds Manager to another nominee that holds those Cash Market Products on behalf of the same Funds Manager."

@GCar Thanks for that, slow connection at work.