(IRBT) Stock Institutional Trading Activity


(IRBT) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Disciplined Growth Investors, ARK Invest, Fairfax Financial Holdings, and Tiger Global Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2025Renaissance Technologies LLCSell-461,912116,676$418,867
Q2 2025Renaissance Technologies LLCBuy292,112578,588$1,810,980
Q1 2025Renaissance Technologies LLCSell-288,700286,476$773,485
Q4 2024Renaissance Technologies LLCBuy177,876575,176$4,457,614
Q3 2024Renaissance Technologies LLCBuy308,497397,300$3,452,537
Q1 2024Renaissance Technologies LLCBuy13,70388,803$778
Q4 2023Renaissance Technologies LLCBuy44,50075,100$2,906
Q3 2023Renaissance Technologies LLCSell-52,00030,600$1,160
Q3 2023Disciplined Growth InvestorsSell-2,739337,709$12,799,171
Q2 2023Renaissance Technologies LLCSell-92,00082,600$3,738
Q2 2023Disciplined Growth InvestorsBuy1,932340,448$15,405,272
Q1 2023Renaissance Technologies LLCBuy57,400174,600$7,620
Q1 2023Disciplined Growth InvestorsSell-1,253338,516$14,772,838
Q4 2022Disciplined Growth InvestorsBuy7,654339,769$16,353,082
Q3 2022Renaissance Technologies LLCBuy39,500117,200$6,602
Q3 2022Disciplined Growth InvestorsSell-15,697332,115$18,708
Q2 2022Renaissance Technologies LLCSell-71,30077,700$2,855
Q2 2022Disciplined Growth InvestorsBuy902347,812$12,782
Q1 2022Renaissance Technologies LLCBuy103,200149,000$9,447
Q1 2022Disciplined Growth InvestorsBuy6,786346,910$21,994
Q4 2021ARK InvestBuy2,9472,947$194
Q4 2021Renaissance Technologies LLCSell-76,57645,800$3,017
Q4 2021Disciplined Growth InvestorsSell-4,259340,124$22,407
Q2 2021Disciplined Growth InvestorsBuy111,688344,383$32,162
Q1 2021Renaissance Technologies LLCBuy87,576122,376$14,952
Q1 2021Disciplined Growth InvestorsSell-66,764232,695$28,431
Q4 2020Renaissance Technologies LLCSell-147,80034,800$2,794
Q4 2020Disciplined Growth InvestorsSell-19,340299,459$24,044
Q3 2020Disciplined Growth InvestorsSell-1,192318,799$24,197
Q2 2020Fairfax Financial HoldingsSell-4,50015,000$1,258

Frequently asked questions about IRBT activity

  • Which institutional owners are buying IRBT?

    Institutional owners buying IRBT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IRBT activity?

    "Buy" means an investor increased their reported position in IRBT compared to the prior reporting period. This reflects growing exposure to IRBT rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IRBT increasing?

    Institutional interest in IRBT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.