IRHYTHM TECHNOLOGIES INC (IRTC) Institutional Ownership Changes & 13F Activity

IRHYTHM TECHNOLOGIES INC (IRTC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-50,10053,800$6,349,476
Q4 2025Renaissance Technologies LLCSell-17,500103,900$18,436,016
Q3 2025Renaissance Technologies LLCSell-19,800121,400$20,879,586
Q2 2025Renaissance Technologies LLCBuy119,100141,200$21,739,152
Q1 2025Renaissance Technologies LLCSell-50,70022,100$2,313,428
Q3 2023Renaissance Technologies LLCSell-10,70072,800$6,862
Q2 2023Renaissance Technologies LLCBuy73,90083,500$8,711
Q1 2023Renaissance Technologies LLCSell-92,2009,600$1,191
Q4 2022Renaissance Technologies LLCBuy85,400101,800$9,536
Q2 2022Renaissance Technologies LLCSell-2,30016,400$1,772
Q1 2022Renaissance Technologies LLCSell-223,40018,700$2,945
Q3 2021Renaissance Technologies LLCSell-93,500242,100$14,177
Q2 2021Renaissance Technologies LLCBuy193,100335,600$22,267
Q1 2021Renaissance Technologies LLCSell-35,000142,500$19,788
Q4 2019Renaissance Technologies LLCBuy90,100177,500$12,086
Q1 2019Renaissance Technologies LLCSell-110,20087,400$6,552
Q4 2018Renaissance Technologies LLCBuy17,500197,600$13,729
Q3 2018Renaissance Technologies LLCSell-225,200180,100$17,048
Q1 2018Renaissance Technologies LLCBuy161,000405,300$25,514
Q4 2017Renaissance Technologies LLCBuy41,800244,300$13,693
Q3 2017Renaissance Technologies LLCSell-72,300202,500$10,506
Q2 2017Renaissance Technologies LLCBuy187,600274,800$11,676
Q1 2017Renaissance Technologies LLCBuy87,20087,200$3,279

Frequently asked questions about IRTC activity

  • Which institutional owners are buying IRTC?

    Institutional owners buying IRTC 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 IRTC activity?

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

  • Is institutional interest in IRTC increasing?

    Institutional interest in IRTC 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.

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