Ticker · CUSIP 462726100

I8R

IROBOT CORP
···Share
Holders (tracked)
9
Combined shares
1,556,513
Combined value
$5.36M
Last close
Quarter
2025Q3
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
9122023Q42025Q3

SEC event timeline

13 events
  1. −31,272 shares · 2025Q4
    13F
  2. −253,800 shares · 2025Q4
    13F
  3. −568,257 shares · 2025Q4
    13F
  4. −225,968 shares · 2025Q4
    13F
  5. −64,540 shares · 2025Q4
    13F
  6. −116,676 shares · 2025Q4
    13F
  7. −33,700 shares · 2025Q4
    13F
  8. −187,288 shares · 2025Q3
    13F
  9. +229,151 shares · 2025Q3
    13F
  10. +20,600 shares · 2025Q3
    13F
  11. −112,097 shares · 2025Q3
    13F
  12. −461,912 shares · 2025Q3
    13F
  13. −2,500 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q3

13F transactions reported for the latest quarter, grouped by direction.
New positions0
Added to2
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2021Q4
19
$147.8M
2022Q1
18
$17.66B
2022Q2
16
$10.26B
2022Q3
14
$6.0M
2022Q4
15
$251.5M
2023Q1
15
$238.9M
2023Q2
13
$263.1M
2023Q3
14
$233.0M
2023Q4
12
$237.7M
2024Q1
12
$35.1M
2024Q2
12
$36.4M
2024Q3
12
$17.1M
2024Q4
12
$16.4M
2025Q1
10
$3.2M
2025Q2
10
$6.9M
2025Q3
9
$5.4M

Who owns I8R

9 super-investors · 2025Q3
Tracked stake
1.56M
shares
Combined value
$5M
% of shares outstanding
shares-out unknown
Quarter action mix
Added2Trim3Held4
#ManagerSharesValue
1Two Sigma Investments568.3K$2M
2D.E. Shaw & Co.253.8K$911K
3Izzy Englander
Millennium Mgmt
226.0K$811K
4Ken Griffin
Citadel Advisors
213.7K$767K
5Renaissance Technologies116.7K$419K
6Ken Griffin
Citadel Advisors
48.6K$174K
7Mario Gabelli
GAMCO
33.7K$121K
8Ken Griffin
Citadel Advisors
31.3K$112K
9T. Rowe Price64.5K$232

Recent moves

20 transactions
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