iRhythm Holdings, Inc. (IRTC) — Institutional Holders, Q2 2026 (page 2)
334 institutional investment managers reported a IRTC position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 101 to 200. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
IRTC 13F holders ranked 101–200 of 334
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 101 | Susquehanna Portfolio Strategies#101 · 49,120 sh | 49,120 | $5.8M | 0.09% | -35.3% |
| 102 | CANADA PENSION PLAN INVESTMENT BOARD#102 · 48,700 sh | 48,700 | $5.8M | <0.01% | -17.2% |
| 103 | Calamos Advisors#103 · 5,000,000 sh | 5,000,000 | $5.5M | 0.02% | 0.0% |
| 104 | NINE MASTS CAPITAL Ltd#104 · 5,000 sh | 5,000 | $5.5M | 0.55% | New |
| 105 | Invesco Ltd.#105 · 2,497,146 sh | 2,497,146 | $5.3M | <0.01% | -33.8% |
| 106 | PRICE T ROWE ASSOCIATES#106 · 44,239 sh | 44,239 | $5.3M | <0.01% | +24.0% |
| 107 | SSI INVESTMENT MANAGEMENT#107 · 4,636,000 sh | 4,636,000 | $5.1M | 0.30% | 0.0% |
| 108 | Connor, Clark & Lunn Investment Management Ltd.#108 · 42,314 sh | 42,314 | $5.0M | <0.01% | -0.1% |
| 109 | ALLIANCEBERNSTEIN L.P.#109 · 42,595 sh | 42,595 | $5.0M | <0.01% | +17.3% |
| 110 | RHUMBLINE ADVISERS#110 · 42,028 sh | 42,028 | $5.0M | <0.01% | +6.6% |
| 111 | RENAISSANCE TECHNOLOGIES#111 · 38,500 sh | 38,500 | $4.6M | <0.01% | -28.4% |
| 112 | SIRIOS CAPITAL MANAGEMENT L P#112 · 34,455 sh | 34,455 | $4.1M | 0.50% | -0.8% |
| 113 | SHENKMAN CAPITAL MANAGEMENT#113 · 3,574,000 sh | 3,574,000 | $4.0M | 0.56% | -10.7% |
| 114 | Engineers Gate Manager#114 · 30,418 sh | 30,418 | $3.6M | 0.05% | -38.3% |
| 115 | VANGUARD ASSET MANAGEMENT, Ltd#115 · 30,320 sh | 30,320 | $3.6M | <0.01% | +5.8% |
| 116 | EFG International AG#116 · 28,913 sh | 28,913 | $3.4M | 0.06% | -1.9% |
| 117 | SECTORAL ASSET MANAGEMENT#117 · 26,070 sh | 26,070 | $3.1M | 2.16% | New |
| 118 | MIRAE ASSET GLOBAL ETFS Ltd.#118 · 25,532 sh | 25,532 | $3.0M | <0.01% | +9.7% |
| 119 | NOMURA ASSET MANAGEMENT INTERNATIONAL#119 · 24,721 sh | 24,721 | $2.9M | <0.01% | +16.4% |
| 120 | Brevan Howard Capital Management#120 · 23,847 sh | 23,847 | $2.8M | 0.02% | +42.1% |
| 121 | Russell Investments Group, Ltd.#121 · 22,992 sh | 22,992 | $2.7M | <0.01% | +43.0% |
| 122 | XTX Topco Ltd#122 · 22,619 sh | 22,619 | $2.7M | 0.03% | +15.8% |
| 123 | Assenagon Asset Management S.A.#123 · 22,161 sh | 22,161 | $2.6M | — | -91.8% |
| 124 | Campbell & Investment Adviser#124 · 22,024 sh | 22,024 | $2.6M | 0.14% | -46.0% |
| 125 | BANQUE PICTET & CIE SA#125 · 21,841 sh | 21,841 | $2.6M | — | -12.0% |
| 126 | VICTORY CAPITAL MANAGEMENT#126 · 21,460 sh | 21,460 | $2.6M | <0.01% | -3.2% |
| 127 | SG Americas Securities#127 · 22,904 sh | 22,904 | $2.6M | <0.01% | +290.2% |
| 128 | Zurcher Kantonalbank (Zurich Cantonalbank)#128 · 912,922 sh | 912,922 | $2.5M | <0.01% | +121.9% |
| 129 | FRANKLIN RESOURCES#129 · 21,053 sh | 21,053 | $2.5M | <0.01% | -82.7% |
| 130 | Kampmann Melissa S.#130 · 21,012 sh | 21,012 | $2.5M | 1.89% | -4.5% |
| 131 | Future Fund#131 · 20,078 sh | 20,078 | $2.4M | 0.68% | +6.4% |
| 132 | MUTUAL OF AMERICA CAPITAL MANAGEMENT#132 · 20,067 sh | 20,067 | $2.4M | — | -4.9% |
| 133 | HRT FINANCIAL#133 · 19,922 sh | 19,922 | $2.4M | <0.01% | +1024.3% |
| 134 | MetLife Investment Management#134 · 19,281 sh | 19,281 | $2.3M | 0.01% | +10.7% |
| 135 | One Capital Management#135 · 18,883 sh | 18,883 | $2.2M | 0.06% | 0.0% |
| 136 | TRILLIUM ASSET MANAGEMENT#136 · 18,437 sh | 18,437 | $2.2M | 0.07% | +10.3% |
| 137 | TORONTO DOMINION BANK#137 · 2,000,002 sh | 2,000,002 | $2.2M | <0.01% | New |
| 138 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#138 · 18,015 sh | 18,015 | $2.1M | <0.01% | -25.4% |
| 139 | AQR CAPITAL MANAGEMENT#139 · 17,681 sh | 17,681 | $2.1M | <0.01% | -48.9% |
| 140 | HARBOR CAPITAL ADVISORS#140 · 17,164 sh | 17,164 | $2.0M | — | +9.6% |
| 141 | ENVESTNET ASSET MANAGEMENT#141 · 16,469 sh | 16,469 | $2.0M | <0.01% | -48.7% |
| 142 | VIRGINIA RETIREMENT SYSTEMS ET Al#142 · 16,300 sh | 16,300 | $1.9M | <0.01% | +222.8% |
| 143 | OPPENHEIMER#143 · 15,900 sh | 15,900 | $1.9M | — | New |
| 144 | ROYAL BANK OF CANADA#144 · 15,600 sh | 15,600 | $1.9M | <0.01% | +5.9% |
| 145 | FIFTH THIRD BANCORP#145 · 14,977 sh | 14,977 | $1.8M | <0.01% | -3.1% |
| 146 | BALYASNY ASSET MANAGEMENT L.P.#146 · 1,005,563 sh | 1,005,563 | $1.8M | <0.01% | -68.5% |
| 147 | Entropy Technologies#147 · 14,022 sh | 14,022 | $1.7M | 0.07% | +31.6% |
| 148 | Jupiter Topco#148 · 13,856 sh | 13,856 | $1.6M | <0.01% | — |
| 149 | Jain Global#149 · 13,314 sh | 13,314 | $1.6M | <0.01% | -99.9% |
| 150 | RWC Asset Management LLP#150 · 1,402,000 sh | 1,402,000 | $1.5M | — | -4.8% |
| 151 | Vanguard Global Advisers#151 · 12,933 sh | 12,933 | $1.5M | <0.01% | -1.7% |
| 152 | BNP PARIBAS FINANCIAL MARKETS#152 · 12,916 sh | 12,916 | $1.5M | <0.01% | -35.4% |
| 153 | FIRST ADVISORS#153 · 12,735 sh | 12,735 | $1.5M | <0.01% | -73.2% |
| 154 | Handelsbanken Fonder AB#154 · 12,239 sh | 12,239 | $1.5M | <0.01% | +17.2% |
| 155 | WoodTrust Financial#155 · 12,020 sh | 12,020 | $1.4M | — | +14.3% |
| 156 | PRUDENTIAL FINANCIAL#156 · 11,907 sh | 11,907 | $1.4M | <0.01% | -30.4% |
| 157 | LOS ANGELES CAPITAL MANAGEMENT#157 · 11,742 sh | 11,742 | $1.4M | <0.01% | +263.0% |
| 158 | ABN AMRO INVESTMENT SOLUTIONS#158 · 11,500 sh | 11,500 | $1.4M | — | +13.4% |
| 159 | State of New Jersey Common Pension Fund D#159 · 11,120 sh | 11,120 | $1.3M | <0.01% | -21.4% |
| 160 | B. Metzler seel. Sohn & AG#160 · 11,119 sh | 11,119 | $1.3M | 0.01% | 0.0% |
| 161 | CAPITAL FUND MANAGEMENT S.A.#161 · 10,594 sh | 10,594 | $1.3M | <0.01% | New |
| 162 | FORA Capital#162 · 10,297 sh | 10,297 | $1.2M | 0.08% | New |
| 163 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#163 · 9,957 sh | 9,957 | $1.2M | <0.01% | +16.1% |
| 164 | Police & Firemen's Retirement System of New Jersey#164 · 9,771 sh | 9,771 | $1.2M | <0.01% | +13.0% |
| 165 | Creative Planning#165 · 9,571 sh | 9,571 | $1.1M | <0.01% | -39.6% |
| 166 | Arizona State Retirement System#166 · 8,917 sh | 8,917 | $1.1M | <0.01% | +0.8% |
| 167 | Ascent Group#167 · 8,771 sh | 8,771 | $1.0M | 0.03% | -5.7% |
| 168 | ALLSTATE#168 · 8,684 sh | 8,684 | $1.0M | 0.01% | -0.6% |
| 169 | INTECH INVESTMENT MANAGEMENT#169 · 8,414 sh | 8,414 | $1.0M | <0.01% | -16.7% |
| 170 | Vanguard Investments Australia, Ltd.#170 · 8,409 sh | 8,409 | $1.0M | <0.01% | +5.3% |
| 171 | FOX RUN MANAGEMENT, L.L.C.#171 · 8,401 sh | 8,401 | $999.3K | 0.17% | +45.7% |
| 172 | EXCHANGE TRADED CONCEPTS#172 · 8,317 sh | 8,317 | $989.3K | <0.01% | +21.0% |
| 173 | Bridgefront Capital#173 · 8,009 sh | 8,009 | $952.7K | 0.25% | +63.7% |
| 174 | CAPTRUST FINANCIAL ADVISORS#174 · 7,801 sh | 7,801 | $927.9K | <0.01% | +24.4% |
| 175 | Cinctive Capital Management#175 · 7,467 sh | 7,467 | $888.2K | 0.03% | -6.2% |
| 176 | Pinnacle Financial Partners#176 · 7,149 sh | 7,149 | $850.4K | <0.01% | +0.3% |
| 177 | KLP KAPITALFORVALTNING AS#177 · 7,100 sh | 7,100 | $844.5K | <0.01% | 0.0% |
| 178 | JONES FINANCIAL COMPANIES LLLP#178 · 6,896 sh | 6,896 | $819.9K | <0.01% | +10.6% |
| 179 | VOYA INVESTMENT MANAGEMENT#179 · 6,278 sh | 6,278 | $746.8K | <0.01% | +14.3% |
| 180 | LANDSCAPE CAPITAL MANAGEMENT, L.L.C.#180 · 6,116 sh | 6,116 | $727.5K | 0.05% | -55.1% |
| 181 | Values First Advisors#181 · 6,110 sh | 6,110 | $726.8K | — | +2.9% |
| 182 | Pictet Asset Management Holding SA#182 · 5,492 sh | 5,492 | $653.3K | <0.01% | 0.0% |
| 183 | Quantinno Capital Management#183 · 5,356 sh | 5,356 | $637.1K | <0.01% | -71.2% |
| 184 | CIBC Bancorp USA#184 · 5,325 sh | 5,325 | $633.4K | <0.01% | -7.8% |
| 185 | OSSIAM#185 · 5,300 sh | 5,300 | $630.4K | <0.01% | New |
| 186 | Headlands Technologies#186 · 4,886 sh | 4,886 | $581.2K | 0.06% | +6.7% |
| 187 | CIM INVESTMENT MANAGEMENT#187 · 4,824 sh | 4,824 | $573.8K | 0.14% | +7.4% |
| 188 | Mitsubishi UFJ Asset Management , Ltd.#188 · 4,604 sh | 4,604 | $547.6K | <0.01% | +64.5% |
| 189 | ProShare Advisors#189 · 4,505 sh | 4,505 | $535.9K | <0.01% | -4.9% |
| 190 | HSBC PLC#190 · 4,473 sh | 4,473 | $527.7K | <0.01% | New |
| 191 | ALGERT GLOBAL#191 · 4,413 sh | 4,413 | $524.9K | <0.01% | -61.5% |
| 192 | Kohlberg Kravis Roberts & L.P.#192 · 450,000 sh | 450,000 | $495.7K | <0.01% | 0.0% |
| 193 | GREAT WEST LIFE ASSURANCE#193 · 3,803 sh | 3,803 | $451.0K | <0.01% | +2.1% |
| 194 | LPL Financial#194 · 3,579 sh | 3,579 | $425.7K | <0.01% | -2.9% |
| 195 | Mitsubishi UFJ & Banking#195 · 3,571 sh | 3,571 | $424.8K | <0.01% | New |
| 196 | STEPHENS#196 · 23,372 sh | 23,372 | $423.0K | <0.01% | -3.0% |
| 197 | Hennion & Walsh Asset Management#197 · 3,521 sh | 3,521 | $418.8K | — | -55.4% |
| 198 | Harbour Capital Advisors#198 · 3,605 sh | 3,605 | $418.6K | — | New |
| 199 | PNC FINANCIAL SERVICES GROUP#199 · 3,499 sh | 3,499 | $416.2K | <0.01% | +136.4% |
| 200 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#200 · 3,405 sh | 3,405 | $405.0K | <0.01% | 0.0% |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.