The Nets were active during the trade deadline but did not make any big moves. With that said the Nets shipped out Bojan Bogdanovic and Chris McCullough. The link above has all the details on the trade.
Marcus Thornton rejoined the Nets as part of the trade with Washington. The Nets did not keep Thornton long. Almost immediately after the trade, the Nets released him.
The Nets managed to pick up K.J. McDaniels for nothing from the Rockets. The Rockets essentially made the move just to clear some cap room.