iRobot
IRBT
IRBT was delisted on the 19th of December, 2025.
220 hedge funds and large institutions have $1.11B invested in iRobot in 2023 Q1 according to their latest regulatory filings, with 26 funds opening new positions, 62 increasing their positions, 75 reducing their positions, and 48 closing their positions.
5.4% less ownership
Funds ownership: 97.78% → 92.38% (-5.4%)
10% less funds holding
Funds holding: 245 → 220 (-25)
11% less capital invested
Capital invested by funds: $1.25B → $1.11B (-$141M)
17% less repeat investments, than reductions
Existing positions increased: 62 | Existing positions reduced: 75
40% less funds holding in top 10
Funds holding in top 10: 5 → 3 (-2)
46% less first-time investments, than exits
New positions opened: 26 | Existing positions closed: 48
54% less call options, than puts
Call options by funds: $41.6M | Put options by funds: $90.2M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$10.2M |
| 2 |
Morgan Stanley
New York
|
+$9.37M |
| 3 |
Wellington Management Group
Boston,
Massachusetts
|
+$7.82M |
| 4 |
Renaissance Technologies
New York
|
+$7.73M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$6.45M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MF
Magnetar Financial
Evanston,
Illinois
|
-$28.1M |
| 2 |
WIC
Water Island Capital
New York
|
-$13.7M |
| 3 |
AllianceBernstein
Nashville,
Tennessee
|
-$8.44M |
| 4 |
WP
Woodline Partners
San Francisco,
California
|
-$7.6M |
| 5 |
NAM
Nexpoint Asset Management
Dallas,
Texas
|
-$6.7M |
IRBT Hedge Fund Activity: Q1 2023 in Review
220 of the 6,276 institutional investors tracked by Wall St. Rank reported a position in iRobot (IRBT) for Q1 2023, worth a combined $1.11B — down 11% from $1.25B a quarter earlier.
Sellers outnumbered buyers: 48 funds closed out of IRBT and 26 opened new positions — a net loss of 22 holders — while 75 trimmed existing stakes and 62 added.
The largest buyer was Millennium Management, adding an estimated $10.2M. The largest seller was Magnetar Financial, cutting an estimated $28.1M.
- 220 institutional investors held iRobot (IRBT) as of Q1 2023, down from 245 in Q4 2022.
- Funds reported $1.11B of iRobot stock for Q1 2023, down 11% quarter-over-quarter.
- 26 funds opened new iRobot positions in Q1 2023 and 48 closed out, a net change of -22 holders.
- The largest iRobot buyer in Q1 2023 was Millennium Management, an estimated $10.2M added.
- The largest iRobot seller in Q1 2023 was Magnetar Financial, an estimated $28.1M sold.
Based on aggregated 13F filings for Q1 2023.