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 (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Artisan Partners Limited Partnership, Rtw Investments, Lp, Millennium Management Llc, Blair William & Co/Il, and Holocene Advisors, Lp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Ensign Peak Advisors, Inc | Buy | +8,046 | +31.1% | 33,939 | $6.02M | Q4 2025 | Aug 18, 2026 |
| Algert Global Llc | Sell | -43,521 | -54.6% | 36,209 | $6.42M | Q4 2025 | Aug 11, 2026 |
| Hsbc Holdings Plc | Buy | +17,024 | — | 17,024 | $3.05M | Q4 2025 | Mar 06, 2026 |
| Midfirst Bank | Buy | +1,326 | — | 1,326 | $235.28K | Q4 2025 | Feb 25, 2026 |
| Bell Investment Advisors, Inc | Buy | +13 | — | 13 | $2.31K | Q4 2025 | Feb 24, 2026 |
| Sunbelt Securities, Inc. | Buy | +4 | — | 4 | $710.00 | Q4 2025 | Feb 20, 2026 |
| Corient Private Wealth Llc | Buy | +1,764 | — | 1,764 | $313.08K | Q4 2025 | Feb 19, 2026 |
| Mackenzie Financial Corp | Buy | +347,304 | — | 347,304 | $61.90M | Q4 2025 | Feb 18, 2026 |
| Raymond James Financial Inc | Buy | +153,806 | — | 153,806 | $27.43M | Q4 2025 | Feb 18, 2026 |
| Vident Advisory, Llc | Buy | +2,292 | — | 2,292 | $406.69K | Q4 2025 | Feb 18, 2026 |
| Newedge Advisors, Llc | Buy | +10 | — | 10 | $1.77K | Q4 2025 | Feb 18, 2026 |
| Artisan Partners Limited Partnership | Buy | +1,511,992 | — | 1,511,992 | $268.29M | Q4 2025 | Feb 17, 2026 |
| Rtw Investments, Lp | Buy | +1,181,990 | — | 1,181,990 | $209.73M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +826,376 | — | 826,376 | $146.63M | Q4 2025 | Feb 17, 2026 |
| Blair William & Co/Il | Buy | +718,797 | — | 718,797 | $127.54M | Q4 2025 | Feb 17, 2026 |
| Holocene Advisors, Lp | Buy | +683,568 | — | 683,568 | $121.29M | Q4 2025 | Feb 17, 2026 |
| Fmr Llc | Buy | +628,766 | — | 628,766 | $111.57M | Q4 2025 | Feb 17, 2026 |
| Price T Rowe Associates Inc | Buy | +502,120 | — | 502,120 | $89.10M | Q4 2025 | Feb 17, 2026 |
| Wellington Management Group Llp | Buy | +408,256 | — | 408,256 | $72.44M | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +360,669 | — | 360,669 | $64.00M | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +354,770 | — | 354,770 | $62.95M | Q4 2025 | Feb 17, 2026 |
| Fred Alger Management, Llc | Buy | +310,582 | — | 310,582 | $55.11M | Q4 2025 | Feb 17, 2026 |
| Polar Capital Holdings Plc | Buy | +308,100 | — | 308,100 | $54.67M | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +279,070 | — | 279,070 | $49.52M | Q4 2025 | Feb 17, 2026 |
| Driehaus Capital Management Llc | Buy | +267,968 | — | 267,968 | $47.55M | Q4 2025 | Feb 17, 2026 |
| Rock Springs Capital Management Lp | Buy | +235,000 | — | 235,000 | $41.70M | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | Buy | +219,468 | — | 219,468 | $38.94M | Q4 2025 | Feb 17, 2026 |
| Braidwell Lp | Buy | +217,345 | — | 217,345 | $38.57M | Q4 2025 | Feb 17, 2026 |
| Balyasny Asset Management L.P. | Buy | +167,274 | — | 167,274 | $29.68M | Q4 2025 | Feb 17, 2026 |
| First Light Asset Management, Llc | Buy | +153,871 | — | 153,871 | $27.30M | Q4 2025 | Feb 17, 2026 |
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.
Related IRTC Institutional Insights
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