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; 304 institutions reported holding it in 13F filings for Q2 2026, worth $4.24B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in iRhythm Holdings, Inc. as of Mar 31, 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
- 305
- −24 vs. Q4 2025
- Shares held
- 35.5M
- +3.74M (+11.8%) vs. Q4 2025
- Total value
- $4.19B
- −$1.45B (−25.6%) vs. Q4 2025
- New holders
- 45
- 112 more added
- Sold out
- 69
- 105 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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 | 304 | $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, Q1 2026
Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Envestnet Asset Management Inc | 32,134 | $3.79M | 0.00% | +8,930+38.5% | Added |
| KCM Capital Inc | 30,000 | $3.54M | 0.66% | −7,000−18.9% | Reduced |
| Ensign Peak Advisors, Inc | 29,957 | $3.54M | 0.01% | −3,982−11.7% | Reduced |
| EFG International AG | 29,460 | $3.48M | 0.07% | +2,817+10.6% | Added |
| Hussman Strategic Advisors, Inc. | 29,400 | $3.47M | 0.75% | +14,700+100.0% | Added |
| Vanguard Asset Management, Ltd | 28,645 | $3.38M | 0.00% | +28,645 | New |
| Castleark Management LLC | 27,193 | $3.21M | 0.11% | −23,000−45.8% | Reduced |
| Wells Fargo & Company | 26,898 | $3.17M | 0.00% | −18,388−40.6% | Reduced |
| Banque Pictet & Cie SA | 24,815 | $2.93M | 0.03% | −2,296−8.5% | Reduced |
| Susquehanna International Group, LLP | 24,151 | $2.85M | 0.00% | +19,392+407.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 23,273 | $2.75M | 0.00% | −2,530−9.8% | Reduced |
| Victory Capital Management Inc | 22,172 | $2.62M | 0.00% | −21,043−48.7% | Reduced |
| Kampmann Melissa S. | 22,010 | $2.60M | 2.08% | −610−2.7% | Reduced |
| Nomura Asset Management International Inc. | 21,238 | $2.51M | 0.00% | −18,509−46.6% | Reduced |
| Mutual of America Capital Management LLC | 21,097 | $2.49M | 0.03% | −54−0.3% | Reduced |
| BNP Paribas Arbitrage, SA | 19,993 | $2.36M | 0.00% | −53,658−72.9% | Reduced |
| XTX Topco Ltd | 19,534 | $2.31M | 0.04% | +14,718+305.6% | Added |
| One Capital Management, LLC | 18,883 | $2.23M | 0.06% | +4,106+27.8% | Added |
| Future Fund LLC | 18,878 | $2.23M | 0.78% | +4,101+27.8% | Added |
| Quantinno Capital Management LP | 18,621 | $2.20M | 0.00% | +17,158+1,172.8% | Added |
| Trillium Asset Management, LLC | 16,719 | $2.14M | 0.07% | +16,719 | New |
| MetLife Investment Management | 17,423 | $2.06M | 0.01% | −440−2.5% | Reduced |
| Prudential Financial Inc | 17,112 | $2.02M | 0.00% | −23,312−57.7% | Reduced |
| Brevan Howard Capital Management LP | 16,787 | $1.98M | 0.02% | +11,812+237.4% | Added |
| Congress Asset Management Co | 16,461 | $1.94M | 0.01% | +16,461 | New |
| Russell Investments Group, Ltd. | 16,083 | $1.90M | 0.00% | −13,936−46.4% | Reduced |
| Creative Planning | 15,841 | $1.87M | 0.00% | +1,691+12.0% | Added |
| Harbor Capital Advisors, Inc. | 15,661 | $1.85M | 0.15% | +7,055+82.0% | Added |
| Fifth Third Bancorp | 15,452 | $1.82M | 0.00% | +15,362+17,068.9% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 15,429 | $1.82M | 0.00% | −23,105−60.0% | Reduced |
| CI Private Wealth, LLC | 15,344 | $1.81M | 0.00% | +15,344 | New |
| State of New Jersey Common Pension Fund D | 14,155 | $1.67M | 0.01% | +1,443+11.4% | Added |
| Janus Henderson Group PLC | 13,856 | $1.64M | 0.00% | 00.0% | Unchanged |
| Landscape Capital Management, L.L.C. | 13,626 | $1.61M | 0.10% | +13,626 | New |
| RE Advisers Corp | 13,300 | $1.57M | 0.04% | −14,100−51.5% | Reduced |
| Vanguard Global Advisers, LLC | 13,158 | $1.55M | 0.00% | +13,158 | New |
| Royal Bank of Canada | 11,731 | $1.38M | 0.00% | −254−2.1% | Reduced |
| Algert Global LLC | 11,453 | $1.35M | 0.02% | −24,756−68.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 11,388 | $1.34M | 0.00% | +2,339+25.8% | Added |
| B. Metzler seel. Sohn & Co. AG | 11,119 | $1.31M | 0.01% | 00.0% | Unchanged |
| Entropy Technologies, LP | 10,652 | $1.26M | 0.06% | +3,963+59.2% | Added |
| WoodTrust Financial Corp | 10,520 | $1.24M | 0.16% | +450+4.5% | Added |
| Handelsbanken Fonder AB | 10,439 | $1.23M | 0.00% | 00.0% | Unchanged |
| Abn Amro Investment Solutions | 10,139 | $1.20M | 0.02% | −62−0.6% | Reduced |
| Intech Investment Management LLC | 10,105 | $1.19M | 0.01% | −5,147−33.7% | Reduced |
| Prosight Management, LP | 10,000 | $1.18M | 0.19% | +10,000 | New |
| Ascent Group, LLC | 9,306 | $1.10M | 0.04% | −281−2.9% | Reduced |
| Arizona State Retirement System | 8,850 | $1.04M | 0.01% | −227−2.5% | Reduced |
| Allstate Corp | 8,739 | $1.03M | 0.01% | +8,739 | New |
| Police & Firemen's Retirement System of New Jersey | 8,649 | $1.02M | 0.01% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 8,578 | $1.01M | 0.00% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 8,289 | $978.3K | 0.00% | −116,711−93.4% | Reduced |
| Vanguard Investments Australia, Ltd. | 7,989 | $942.9K | 0.00% | +7,989 | New |
| Cinctive Capital Management LP | 7,957 | $939.1K | 0.06% | +2,983+60.0% | Added |
| Hennion & Walsh Asset Management, Inc. | 7,903 | $932.7K | 0.03% | −217−2.7% | Reduced |
| Pinnacle Financial Partners, Inc. | 7,129 | $841.4K | 0.01% | −16−0.2% | Reduced |
| KLP Kapitalforvaltning AS | 7,100 | $837.9K | 0.00% | +200+2.9% | Added |
| Exchange Traded Concepts, LLC | 6,876 | $811.5K | 0.01% | +2,020+41.6% | Added |
| Captrust Financial Advisors | 6,270 | $740.0K | 0.00% | +467+8.0% | Added |
| Jones Financial Companies LLLP | 6,234 | $736.2K | 0.00% | +5,967+2,234.8% | Added |
| Squarepoint Ops LLC | 6,164 | $727.5K | 0.00% | −87,544−93.4% | Reduced |
| Values First Advisors, Inc. | 5,937 | $700.6K | 0.37% | +172+3.0% | Added |
| SG Americas Securities, LLC | 5,870 | $693.0K | 0.00% | −5,335−47.6% | Reduced |
| CIBC Bancorp USA Inc. | 5,777 | $681.8K | 0.00% | +5,777 | New |
| Fox Run Management, L.L.C. | 5,767 | $658.6K | 0.12% | +1,334+30.1% | Added |
| Voya Investment Management LLC | 5,492 | $648.2K | 0.00% | −3,980−42.0% | Reduced |
| Pictet Asset Management Holding SA | 5,492 | $648.2K | 0.00% | +580+11.8% | Added |
| Inceptionr LLC | 5,420 | $639.7K | 0.15% | +1,993+58.2% | Added |
| Virginia Retirement Systems Et Al | 5,050 | $596.0K | 0.00% | +200+4.1% | Added |
| Bridgefront Capital, LLC | 4,893 | $577.5K | 0.14% | +4,893 | New |
| ProShare Advisors LLC | 4,737 | $559.1K | 0.00% | −1,207−20.3% | Reduced |
| Headlands Technologies LLC | 4,581 | $540.6K | 0.06% | −2,104−31.5% | Reduced |
| Cim Investment Mangement Inc | 4,491 | $530.0K | 0.14% | −1,011−18.4% | Reduced |
| Great West Life Assurance Co | 3,724 | $441.0K | 0.00% | +12+0.3% | Added |
| LPL Financial LLC | 3,685 | $434.9K | 0.00% | +410+12.5% | Added |
| Vident Advisory, LLC | 3,535 | $417.2K | 0.00% | +1,243+54.2% | Added |
| Public Employees Retirement Association of Colorado | 3,405 | $402.0K | 0.00% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 3,235 | $381.8K | 0.00% | +393+13.8% | Added |
| Ancora Advisors, LLC | 3,230 | $381.2K | 0.01% | 00.0% | Unchanged |
| IMA Wealth, Inc. | 3,230 | $381.2K | 0.04% | 00.0% | Unchanged |
| Morris Retirement Advisors, LLC | 3,210 | $378.9K | 0.15% | +441+15.9% | Added |
| Stephens Inc | 3,085 | $364.1K | 0.00% | +319+11.5% | Added |
| Blueshift Asset Management, LLC | 3,063 | $361.5K | 0.11% | +3,063 | New |
| Teacher Retirement System of Texas | 3,028 | $357.4K | 0.00% | +3,028 | New |
| Xponance, Inc. | 3,001 | $354.2K | 0.00% | +468+18.5% | Added |
| Tower Research Capital LLC (TRC) | 3,000 | $354.1K | 0.01% | +1,994+198.2% | Added |
| JustInvest LLC | 2,977 | $351.3K | 0.00% | +505+20.4% | Added |
| Bayforest Capital Ltd | 2,859 | $337.4K | 0.38% | −36−1.2% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 2,798 | $330.2K | 0.00% | +48+1.7% | Added |
| Truist Financial Corp | 2,709 | $319.7K | 0.00% | −888−24.7% | Reduced |
| Two Sigma Securities, LLC | 2,701 | $318.8K | 0.04% | +2,701 | New |
| Vise Technologies, Inc. | 1,727 | $306.4K | 0.01% | 00.0% | Unchanged |
| Everence Capital Management Inc | 2,590 | $306.0K | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,589 | $305.6K | 0.01% | 00.0% | Unchanged |
| Capstone Investment Advisors, LLC | 2,535 | $299.2K | 0.00% | +2,535 | New |
| Bessemer Group Inc | 2,432 | $286.0K | 0.00% | −319,552−99.2% | Reduced |
| Acadian Asset Management LLC | 2,407 | $284.0K | 0.00% | −1,627−40.3% | Reduced |
| Virtus ETF Advisers LLC | 2,201 | $259.8K | 0.12% | +2,201 | New |
| Axq Capital, LP | 2,172 | $256.3K | 0.03% | +2,172 | New |
| Swiss Life Asset Management Ltd | 2,139 | $252.4K | 0.00% | +678+46.4% | Added |