Sellers:

http://www.tf2outpost.com/trade/27357543 - looking for offers, reserved one at 4 ref, current offer of 9 ref

http://www.tf2outpost.com/trade/27348769 - looking for offers, no b/o

http://www.tf2outpost.com/trade/27326923 - got offered 1 key and would have accepted it, but the item actually got bought from this trade

http://www.tf2outpost.com/trade/27365998 - 1 key

http://www.tf2outpost.com/trade/27328890 - looking for offers, got offered 12 ref

http://www.tf2outpost.com/trade/27374464 - looking for "bp.tf price"

http://www.tf2outpost.com/trade/27374448- 1 key

http://www.tf2outpost.com/trade/27330912- got offered 13, 14 ref and A Brotherhood of arms for the pullover plus 3 ref

http://www.tf2outpost.com/trade/27357942 - got offered 15 ref

http://www.tf2outpost.com/trade/27348125 - looking for offers, got offered 10 ref

http://www.tf2outpost.com/trade/27332112- taking offers

http://www.tf2outpost.com/trade/27371369- taking offers

http://www.tf2outpost.com/trade/27365494- selling for 1 key

http://www.tf2outpost.com/trade/27361306- looking to sell in bunch

http://www.tf2outpost.com/trade/27356364- looking for offers

http://www.tf2outpost.com/trade/27335539- looking for offers

http://www.tf2outpost.com/trade/27375715 - I'm also selling it for 1 key

http://backpack.tf/classifieds?item=Prehistoric+Pullover&quality=6&tradable=1&craftable=1 one seller at 14 ref, multiple buyers for 9-10 ref

Sales:

http://www.tf2outpost.com/trade/27364575 - sold 2 for 1 key each http://backpack.tf/item/4261324729 / http://backpack.tf/item/4261330962

http://www.tf2outpost.com/trade/27364568 - sold it for 1 key