iRhythm Holdings, Inc.
IRTC- Exchange
- Nasdaq
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001388658
In the last 90 days, iRhythm Holdings, Inc. insiders filed 0 open-market purchases and 11 sales; 303 institutions reported holding it in 13F filings for Q2 2026, worth $4.24B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in iRhythm Holdings, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 303
- +3 vs. Q1 2026
- Shares held
- 35.6M
- +115.1K (+0.3%) vs. Q1 2026
- Total value
- $4.24B
- +$46.2M (+1.1%) vs. Q1 2026
- New holders
- 44
- 120 more added
- Sold out
- 41
- 91 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IRTC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 303 | $4.24B |
| Q1 2026 | 305 | $4.19B |
| Q4 2025 | 335 | $6.24B |
| Q3 2025 | 338 | $5.97B |
| Q2 2025 | 304 | $5.44B |
| Q1 2025 | 256 | $3.77B |
| Q4 2024 | 227 | $3.09B |
| Q3 2024 | 242 | $2.55B |
| Q2 2024 | 228 | $3.82B |
| Q1 2024 | 253 | $4.00B |
| Q4 2023 | 222 | $3.53B |
| Q3 2023 | 224 | $3.12B |
| Q2 2023 | 203 | $3.47B |
| Q1 2023 | 209 | $4.18B |
| Q4 2022 | 208 | $2.92B |
| Q3 2022 | 233 | $3.81B |
| Q2 2022 | 242 | $3.28B |
| Q1 2022 | 222 | $4.78B |
| Q4 2021 | 213 | $3.43B |
| Q3 2021 | 186 | $1.64B |
| Q2 2021 | 183 | $1.93B |
| Q1 2021 | 217 | $4.33B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Brevan Howard Capital Management LP | 23,847 | $2.84M | 0.04% | +7,060+42.1% | Added |
| Nomura Asset Management International Inc. | 24,721 | $2.94M | 0.00% | +3,483+16.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 25,532 | $3.04M | 0.00% | +2,259+9.7% | Added |
| Sectoral Asset Management Inc | 26,070 | $3.10M | 2.16% | +26,070 | New |
| EFG International AG | 28,913 | $3.44M | 0.06% | −547−1.9% | Reduced |
| Vanguard Asset Management, Ltd | 30,320 | $3.61M | 0.00% | +1,675+5.8% | Added |
| Engineers Gate Manager LP | 30,418 | $3.62M | 0.05% | −18,851−38.3% | Reduced |
| Sirios Capital Management L P | 34,455 | $4.10M | 0.50% | −289−0.8% | Reduced |
| Renaissance Technologies LLC | 38,500 | $4.58M | 0.01% | −15,300−28.4% | Reduced |
| Rhumbline Advisers | 42,028 | $5.00M | 0.00% | +2,606+6.6% | Added |
| Alliancebernstein L.P. | 42,595 | $5.03M | 0.00% | +6,296+17.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 42,314 | $5.03M | 0.01% | −32−0.1% | Reduced |
| Man Group plc | 43,362 | $5.16M | 0.01% | −44,848−50.8% | Reduced |
| California State Teachers Retirement System | 44,067 | $5.24M | 0.00% | +6,743+18.1% | Added |
| Price T Rowe Associates Inc | 44,239 | $5.26M | 0.00% | +8,552+24.0% | Added |
| State of Wisconsin Investment Board | 44,699 | $5.32M | 0.01% | −3,351−7.0% | Reduced |
| Wells Fargo & Company | 47,903 | $5.70M | 0.00% | +21,005+78.1% | Added |
| Canada Pension Plan Investment Board | 48,700 | $5.79M | 0.00% | −10,100−17.2% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 49,120 | $5.84M | 0.09% | −26,841−35.3% | Reduced |
| HealthInvest Partners AB | 54,102 | $6.44M | 1.73% | +31,780+142.4% | Added |
| Verition Fund Management LLC | 55,987 | $6.66M | 0.05% | +21,422+62.0% | Added |
| Amundi | 56,534 | $6.72M | 0.00% | +6,959+14.0% | Added |
| Principal Financial Group Inc | 59,733 | $7.11M | 0.00% | +6,257+11.7% | Added |
| Neuberger Berman Group LLC | 63,343 | $7.53M | 0.01% | +61,503+3,342.6% | Added |
| Swiss National Bank | 64,800 | $7.71M | 0.00% | +1,100+1.7% | Added |
| PFM Health Sciences, LP | 65,196 | $7.76M | 0.67% | +65,196 | New |
| Legal & General Group Plc | 65,304 | $7.77M | 0.00% | +13,735+26.6% | Added |
| Parkman Healthcare Partners LLC | 67,267 | $8.00M | 0.82% | +27,142+67.6% | Added |
| Jennison Associates LLC | 67,924 | $8.08M | 0.00% | −69,116−50.4% | Reduced |
| Squarepoint Ops LLC | 71,862 | $8.55M | 0.02% | +65,698+1,065.8% | Added |
| Peregrine Capital Management LLC | 75,724 | $9.01M | 0.29% | +9,849+15.0% | Added |
| UBS Group AG | 77,665 | $9.24M | 0.00% | −14,238−15.5% | Reduced |
| C WorldWide Group Holding A/S | 80,000 | $9.52M | 0.23% | 00.0% | Unchanged |
| Granahan Investment Management Inc | 83,903 | $9.98M | 0.36% | −12,119−12.6% | Reduced |
| Silvercrest Asset Management Group LLC | 85,830 | $10.2M | 0.07% | +24,149+39.2% | Added |
| Wellington Management Group LLP | 88,257 | $10.5M | 0.00% | −2,203−2.4% | Reduced |
| Integral Health Asset Management, LLC | 90,000 | $10.7M | 0.44% | +90,000 | New |
| New York State Common Retirement Fund | 92,993 | $11.1M | 0.01% | −9,601−9.4% | Reduced |
| Federated Hermes, Inc. | 95,871 | $11.4M | 0.02% | −53,588−35.9% | Reduced |
| Citadel Advisors LLC | 95,931 | $11.4M | 0.01% | −17,669−15.6% | Reduced |
| Trexquant Investment LP | 96,268 | $11.5M | 0.07% | −15,043−13.5% | Reduced |
| Champlain Investment Partners, LLC | 97,015 | $11.5M | 0.30% | +97,015 | New |
| WCM Investment Management, LLC | 107,000 | $12.7M | 0.02% | −1,078−1.0% | Reduced |
| USS Investment Management Ltd | 106,957 | $12.7M | 0.05% | +106,957 | New |
| Segall Bryant & Hamill, LLC | 107,467 | $12.8M | 0.15% | +7,671+7.7% | Added |
| Nuveen, LLC | 113,918 | $13.6M | 0.00% | +2,186+2.0% | Added |
| Bank of New York Mellon Corp | 118,768 | $14.1M | 0.00% | +10,979+10.2% | Added |
| Frontier Capital Management Co LLC | 132,475 | $15.8M | 0.15% | +64,021+93.5% | Added |
| Raymond James Financial Inc | 135,265 | $16.1M | 0.00% | −9,858−6.8% | Reduced |
| TimesSquare Capital Management, LLC | 137,311 | $16.3M | 0.24% | +46,659+51.5% | Added |
| Morgan Stanley | 147,998 | $17.6M | 0.00% | −89,801−37.8% | Reduced |
| Norges Bank | 148,072 | $17.6M | 0.00% | +148,072 | New |
| Schonfeld Strategic Advisors LLC | 152,062 | $18.1M | 0.10% | +63,929+72.5% | Added |
| Prosight Management, LP | 165,500 | $19.7M | 3.39% | +155,500+1,555.0% | Added |
| Massachusetts Financial Services Co | 165,998 | $19.7M | 0.01% | −639−0.4% | Reduced |
| First Light Asset Management, LLC | 167,092 | $19.9M | 1.21% | −1,024−0.6% | Reduced |
| SEI Investments Co | 178,765 | $21.3M | 0.02% | −20,139−10.1% | Reduced |
| Bamco Inc | 181,430 | $21.6M | 0.03% | −2,470−1.3% | Reduced |
| Next Century Growth Investors LLC | 187,064 | $22.3M | 1.18% | +17,758+10.5% | Added |
| Barclays PLC | 191,798 | $22.8M | 0.01% | +3,453+1.8% | Added |
| Ophir Asset Management Pty Ltd | 201,491 | $24.0M | 1.97% | −134,316−40.0% | Reduced |
| Oberweis Asset Management Inc | 202,004 | $24.0M | 0.50% | +46,000+29.5% | Added |
| Fred Alger Management, LLC | 220,789 | $26.3M | 0.09% | −59,251−21.2% | Reduced |
| Perceptive Advisors LLC | 223,766 | $26.6M | 0.41% | +118,740+113.1% | Added |
| Vanguard Fiduciary Trust Co | 235,963 | $28.1M | 0.01% | +12,264+5.5% | Added |
| Deutsche Bank AG | 238,193 | $28.3M | 0.01% | +22,435+10.4% | Added |
| Citigroup Inc | 249,404 | $29.7M | 0.01% | +17,281+7.4% | Added |
| Rock Springs Capital Management LP | 269,650 | $32.1M | 1.57% | +7,900+3.0% | Added |
| Qube Research & Technologies Ltd | 271,624 | $32.3M | 0.04% | +44,740+19.7% | Added |
| Point72 Asset Management, L.P. | 273,162 | $32.5M | 0.05% | −326,243−54.4% | Reduced |
| Jane Street Group, LLC | 275,262 | $32.7M | 0.02% | +162,398+143.9% | Added |
| Westfield Capital Management Co LP | 288,924 | $34.4M | 0.11% | +288,924 | New |
| Ameriprise Financial Inc | 292,513 | $34.8M | 0.01% | +55,727+23.5% | Added |
| Charles Schwab Investment Management Inc | 298,301 | $35.5M | 0.00% | +16,404+5.8% | Added |
| Northern Trust Corp | 307,995 | $36.6M | 0.00% | +22,909+8.0% | Added |
| Allspring Global Investments Holdings, LLC | 300,057 | $37.4M | 0.06% | −167,056−35.8% | Reduced |
| Capital Research Global Investors | 335,209 | $39.9M | 0.01% | −174,381−34.2% | Reduced |
| Loomis Sayles & Co L P | 347,959 | $41.4M | 0.05% | −19,935−5.4% | Reduced |
| Goldman Sachs Group Inc | 362,346 | $43.1M | 0.00% | +13,783+4.0% | Added |
| Schroder Investment Management Group | 448,259 | $53.1M | 0.04% | +200,513+80.9% | Added |
| Arrowstreet Capital, Limited Partnership | 450,865 | $53.6M | 0.02% | −132,014−22.6% | Reduced |
| Polar Capital Holdings Plc | 458,089 | $54.5M | 0.15% | +36,477+8.7% | Added |
| Bank of America Corp | 465,719 | $55.4M | 0.00% | +33,180+7.7% | Added |
| Blair William & Co | 524,690 | $62.4M | 0.16% | −103,695−16.5% | Reduced |
| Manufacturers Life Insurance Company, The | 561,251 | $66.8M | 0.05% | +170,674+43.7% | Added |
| D. E. Shaw & Co., Inc. | 629,686 | $74.9M | 0.05% | +75,420+13.6% | Added |
| Braidwell LP | 654,262 | $77.8M | 2.88% | +44,070+7.2% | Added |
| Fuller & Thaler Asset Management, Inc. | 685,496 | $81.5M | 0.22% | +10,798+1.6% | Added |
| Stephens Investment Management Group LLC | 693,437 | $82.5M | 0.88% | +131,907+23.5% | Added |
| JPMorgan Chase & Co | 766,216 | $90.9M | 0.01% | +51,320+7.2% | Added |
| Holocene Advisors, LP | 783,636 | $93.2M | 0.21% | −465,022−37.2% | Reduced |
| State Street Corp | 856,517 | $101.9M | 0.00% | +68,215+8.7% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 866,528 | $103.1M | 0.10% | +104,466+13.7% | Added |
| Eventide Asset Management, LLC | 880,338 | $104.7M | 1.40% | +119,513+15.7% | Added |
| Geode Capital Management, LLC | 881,899 | $104.9M | 0.01% | +64,789+7.9% | Added |
| UBS Asset Management Americas Inc | 944,517 | $112.4M | 0.02% | −102,935−9.8% | Reduced |
| FMR LLC | 1,191,982 | $141.8M | 0.01% | −169,937−12.5% | Reduced |
| Millennium Management LLC | 1,406,454 | $167.3M | 0.11% | −201,560−12.5% | Reduced |
| Vanguard Capital Management LLC | 1,463,211 | $174.0M | 0.00% | +17,501+1.2% | Added |
| Artisan Partners Limited Partnership | 1,660,307 | $197.5M | 0.32% | +209,400+14.4% | Added |