iRobot
IRBT
IRBT was delisted on the 19th of December, 2025.
155 hedge funds and large institutions have $616M 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.
48% more call options, than puts
Call options by funds: $9.75M | Put options by funds: $6.6M
12% more repeat investments, than reductions
Existing positions increased: 57 | Existing positions reduced: 51
3.66% more ownership
Funds ownership: 69.22% → 72.88% (+3.7%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
6% less funds holding
Funds holding: 165 → 155 (-10)
7% less capital invested
Capital invested by funds: $659M → $616M (-$43.3M)
40% less first-time investments, than exits
New positions opened: 15 | Existing positions closed: 25
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$19.5M |
| 2 |
Lazard Asset Management
New York
|
+$12.1M |
| 3 |
UOC
UBS O'Connor
Chicago,
Illinois
|
+$9.33M |
| 4 |
RMCP
Red Mountain Capital Partners
Los Angeles,
California
|
+$8.59M |
| 5 |
Morgan Stanley
New York
|
+$3.86M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GIM
Granahan Investment Management
Waltham,
Massachusetts
|
-$13.8M |
| 2 |
TAM
THB Asset Management
Norwalk,
Connecticut
|
-$12.7M |
| 3 |
Baillie Gifford & Co
Edinburgh,
United Kingdom
|
-$4.82M |
| 4 |
WI
WBI Investments
Red Bank,
New Jersey
|
-$3.78M |
| 5 |
Comerica Bank
Dallas,
Texas
|
-$3.5M |
IRBT Hedge Fund Activity: Q3 2015 in Review
155 of the 3,590 institutional investors tracked by Wall St. Rank reported a position in iRobot (IRBT) for Q3 2015, worth a combined $616M — down 6.6% from $659M a quarter earlier.
Sellers outnumbered buyers: 25 funds closed out of IRBT and 15 opened new positions — a net loss of 10 holders — while 51 trimmed existing stakes and 57 added.
The largest buyer was Wellington Management Group, adding an estimated $19.5M. The largest seller was Granahan Investment Management, exiting entirely with an estimated $13.8M sold.
- 155 institutional investors held iRobot (IRBT) as of Q3 2015, down from 165 in Q2 2015.
- Funds reported $616M of iRobot stock for Q3 2015, down 6.6% quarter-over-quarter.
- 15 funds opened new iRobot positions in Q3 2015 and 25 closed out, a net change of -10 holders.
- The largest iRobot buyer in Q3 2015 was Wellington Management Group, an estimated $19.5M added.
- The largest iRobot seller in Q3 2015 was Granahan Investment Management, an estimated $13.8M sold.
Based on aggregated 13F filings for Q3 2015.