155 hedge funds and large institutions have $611M invested in iRobot in 2015 Q3 according to their latest regulatory filings, with 15 funds opening new positions, 57 increasing their positions, 51 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
155
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$9.75M
Puts
$6.6M
Net Calls
Net Calls Change

Top Buyers

1 +$18.7M
2 +$11.6M
3 +$8.23M
4
UOC
UBS O'Connor
Illinois
+$4.47M
5
Morgan Stanley
Morgan Stanley
New York
+$3.7M

Top Sellers

1 -$13.8M
2 -$12.2M
3 -$4.62M
4
WI
WBI Investments
New Jersey
-$3.78M
5
Comerica Bank
Comerica Bank
Texas
-$3.35M
Name Holding Trade Value Shares
Change
Change in
Stake
76
$741K
77
$729K
78
$719K
79
$712K
80
$682K
81
$647K
82
$640K
83
$638K
84
$616K
85
$604K
86
$579K
87
$578K
88
$563K
89
$552K
90
$523K
91
$498K
92
$496K
93
$475K
94
$458K
95
$445K
96
$419K
97
$412K
98
$385K
99
$381K
100
$376K