Security record
IRTC
iRhythm Technologies, Inc. · Healthcare · Medical - Devices
104Tracked holders
-6Δ holders
23.67MShares held
$2.82BReported value
+4New positions
−9Exits
Momentum inputs (comparable managers):
holder breadth -5.5% ·
share flow -6.9% ·
net new positions -4.8%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 104 | -6 | 23.67M | $2.82B | +4 | −9 |
| Q1 2026 | 112 | +1 | 25.32M | $2.99B | +11 | −11 |
| Q4 2025 | 110 | -1 | 25.32M | $4.49B | +2 | −2 |
| Q3 2025 | 21 | +1 | 12.24M | $2.10B | +1 | — |
| Q2 2025 | 17 | +4 | 9.71M | $1.50B | +4 | — |
| Q1 2025 | 10 | +1 | 2.81M | $294.19M | +2 | −1 |
| Q4 2024 | 9 | -1 | 2.41M | $217.31M | +2 | −3 |
| Q3 2024 | 9 | +1 | 1.67M | $124.10M | +2 | −1 |
| Q2 2024 | 8 | — | 2.43M | $261.78M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 2.99M | +8.9% | $355.15M | 0.0% | ▲ Add | 5 | SEC ↗ ×16 |
| 2 | Artisan Partners Limited Partnership | 1.66M | +14.4% | $197.49M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 3 | Vanguard Capital Management Llc | 1.46M | +1.2% | $174.05M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Millennium Management ✦ | 1.41M | -12.5% | $167.30M | 0.1% | ▼ Trim | 9 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 1.19M | -12.5% | $141.79M | 0.0% | ▼ Trim | 5 | SEC ↗ ×4 |
| 6 | UBS AM, a distinct business unit of… | 944.52K | -9.8% | $112.35M | 0.0% | ▼ Trim | 3 | SEC ↗ ×9 |
| 7 | Geode Capital Management ✦ (passive) | 881.90K | +7.9% | $104.92M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 8 | BNP Paribas Asset Management… | 866.53K | +13.7% | $103.07M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 9 | State Street Global Advisors ✦ (passive) | 856.52K | +8.7% | $101.88M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 10 | Holocene Advisors, LP | 783.64K | -37.2% | $93.21M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 11 | JPMorgan Chase ✦ | 766.22K | +7.2% | $90.92M | 0.0% | ▲ Add | 4 | SEC ↗ ×6 |
| 12 | D. E. Shaw & Co. ✦ | 629.69K | +13.6% | $74.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | Manufacturers Life Insurance… | 561.25K | +43.7% | $66.76M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 14 | Blair William & Co/Il | 524.69K | -16.5% | $62.41M | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 15 | Bank Of America Corp /De/ | 465.72K | +7.7% | $55.40M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 16 | Arrowstreet Capital ✦ | 450.87K | -22.6% | $53.63M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 17 | Schroder Investment Management Group | 448.26K | +80.9% | $53.08M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | Goldman Sachs Group ✦ | 362.35K | +4.0% | $43.10M | 0.0% | ▲ Add | 4 | SEC ↗ ×4 |
| 19 | Loomis Sayles & Co L P | 347.96K | -5.4% | $41.39M | 0.1% | ▼ Trim | 3 | SEC ↗ ×2 |
| 20 | Capital Research Global Investors | 335.21K | -34.2% | $39.87M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | Allspring Global Investments… | 300.06K | -35.8% | $37.37M | 0.1% | ▼ Trim | 3 | SEC ↗ ×3 |
| 22 | Northern Trust Corp | 308.00K | +8.0% | $36.64M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 23 | Charles Schwab Investment… | 298.30K | +5.8% | $35.48M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 24 | Ameriprise Financial Inc | 292.51K | +23.5% | $34.79M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 25 | Jane Street Group, Llc | 275.26K | +143.9% | $32.74M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 26 | Point72 Asset Management ✦ | 273.16K | -54.4% | $32.49M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 27 | Qube Research & Technologies Ltd | 271.62K | +19.7% | $32.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 28 | Citigroup Inc | 249.40K | +7.4% | $29.67M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 29 | Deutsche Bank Ag\ | 238.19K | +10.4% | $28.33M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 30 | Barclays Plc | 191.80K | +1.8% | $22.81M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 31 | Bamco Inc /Ny/ | 181.43K | -1.3% | $21.58M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Sei Investments Co | 178.76K | -10.1% | $21.26M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 33 | Massachusetts Financial Services Co… | 166.00K | -0.4% | $19.75M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 34 | Norges Bank ✦ (passive) | 148.07K | New | $17.61M | 0.0% | New | 1 | SEC ↗ |
| 35 | Morgan Stanley ✦ | 148.00K | -37.8% | $17.60M | 0.0% | ▼ Trim | 4 | SEC ↗ ×7 |
| 36 | Raymond James Financial Inc | 135.26K | -6.8% | $16.09M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 37 | Bank of New York Mellon Corp | 118.77K | +10.2% | $14.13M | 0.0% | ▲ Add | 3 | SEC ↗ ×10 |
| 38 | Nuveen, LLC | 113.92K | +2.0% | $13.55M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 39 | Wcm Investment Management, Llc | 107.00K | -1.0% | $12.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 40 | Citadel Advisors ✦ | 95.93K | -15.6% | $11.41M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 41 | Federated Hermes, Inc. | 95.87K | -35.9% | $11.40M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 42 | New York State Common Retirement… | 92.99K | -9.4% | $11.06M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 43 | Wellington Management ✦ | 88.26K | -2.4% | $10.50M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 44 | UBS Group AG | 77.67K | -15.5% | $9.24M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 45 | Squarepoint Ops LLC | 71.86K | +1065.8% | $8.55M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Jennison Associates Llc | 67.92K | -50.4% | $8.08M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 47 | Legal & General Group Plc | 65.30K | +26.6% | $7.77M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 48 | Swiss National Bank | 64.80K | +1.7% | $7.71M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 49 | Neuberger Berman Group LLC | 63.34K | +3342.6% | $7.53M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 50 | Principal Financial Group Inc | 59.73K | +11.7% | $7.11M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 51 | Amundi | 56.53K | +14.0% | $6.72M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 52 | Canada Pension Plan Investment Board | 48.70K | -17.2% | $5.79M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Wells Fargo & Company/Mn | 47.90K | +78.1% | $5.70M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 54 | State Of Wisconsin Investment Board | 44.70K | -7.0% | $5.32M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Assenagon Asset Management S.A. | 44.32K | -83.6% | $5.27M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 56 | T. Rowe Price ✦ | 44.24K | +24.0% | $5.26M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 57 | Man Group plc | 43.36K | -50.8% | $5.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Connor, Clark & Lunn Investment… | 42.31K | -0.1% | $5.03M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | Alliancebernstein L.P. | 42.59K | +17.3% | $5.03M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Rhumbline Advisers | 42.03K | +6.6% | $5.00M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Renaissance Technologies ✦ | 38.50K | -28.4% | $4.58M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 62 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 25.53K | +9.7% | $3.04M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Nomura Asset Management… | 24.72K | +16.4% | $2.94M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Russell Investments Group, Ltd. | 22.99K | +43.0% | $2.73M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 65 | Invesco Ltd. | 22.15K | -92.5% | $2.63M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 66 | Victory Capital Management Inc | 21.46K | -3.2% | $2.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 67 | Franklin Resources Inc | 21.05K | -82.7% | $2.50M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 68 | Hrt Financial Lp | 19.92K | +1024.3% | $2.37M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Susquehanna International Group, Llp | 18.02K | -25.4% | $2.14M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | AQR Capital Management ✦ | 17.68K | -48.9% | $2.10M | 0.0% | ▼ Trim | 7 | SEC ↗ ×6 |
| 71 | Envestnet Asset Management Inc | 16.47K | -48.8% | $1.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Royal Bank Of Canada | 15.60K | +33.0% | $1.85M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 73 | Fifth Third Bancorp | 14.98K | -3.1% | $1.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Universal- Beteiligungs- und… | 13.80K | -10.5% | $1.64M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | Zurcher Kantonalbank (Zurich… | 12.92K | +13.5% | $1.54M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 76 | Bnp Paribas Financial Markets | 12.92K | -35.4% | $1.54M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 77 | First Trust Advisors Lp | 12.73K | -73.2% | $1.51M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 78 | Prudential Financial Inc | 11.91K | -30.4% | $1.42M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 79 | State Board Of Administration Of… | 9.96K | +16.1% | $1.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | Creative Planning | 9.57K | -39.6% | $1.14M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 81 | Captrust Financial Advisors | 7.80K | +24.4% | $927,929 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 82 | Jones Financial Companies Lllp | 6.90K | +10.6% | $819,865 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 83 | Voya Investment Management Llc | 6.28K | +14.3% | $746,768 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Balyasny Asset Management L.P. | 5.56K | -97.1% | $661,719 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Pictet Asset Management Holding SA | 5.49K | 0.0% | $653,273 | 0.0% | Held | 3 | SEC ↗ |
| 86 | Quantinno Capital Management LP | 5.36K | -71.2% | $637,096 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 87 | CIBC Bancorp USA Inc. | 5.33K | -7.8% | $633,409 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 88 | Mitsubishi UFJ Asset Management… | 4.60K | +64.5% | $547,646 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 89 | ProShare Advisors LLC | 4.50K | -4.9% | $535,869 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 90 | Hsbc Holdings Plc | 4.47K | New | $527,706 | 0.0% | New | 1 | SEC ↗ ×2 |
| 91 | LPL Financial LLC | 3.58K | -2.9% | $425,722 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 92 | Mitsubishi UFJ Trust & Banking Corp | 3.57K | New | $424,770 | 0.0% | New | 1 | SEC ↗ |
| 93 | Pnc Financial Services Group, Inc. | 3.50K | +136.4% | $416,206 | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 94 | Capstone Investment Advisors, Llc | 2.56K | +0.9% | $304,393 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Ensign Peak Advisors, Inc | 2.44K | -91.8% | $290,595 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Rockefeller Capital Management L.P. | 1.65K | +31.1% | $195,673 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 97 | Osaic Holdings, Inc. | 1.50K | -2.5% | $177,916 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 98 | Assetmark, Inc | 1.15K | +40.2% | $136,911 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 99 | Us Bancorp \De\ | 918 | -6.4% | $109,196 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 100 | Simplex Trading, Llc | 450 | +147.2% | $53,527 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $17.61M | 0.0% |
| Hsbc Holdings Plc | $527,706 | 0.0% |
| Mitsubishi UFJ Trust &… | $424,770 | 0.0% |
Exited
| Mackenzie Financial Corp | $43.84M | was 0.1% |
| Two Sigma Investments | $6.21M | was 0.0% |
| Corient Private Wealth LP | $1.81M | was 0.0% |
| Adage Capital Partners | $978,268 | was 0.0% |
| Truist Financial Corp | $319,716 | was 0.0% |
| Allianz Asset Management GmbH | $224,238 | was 0.0% |
| Walleye Trading LLC | $96,894 | was 0.0% |
| LMR Partners LLP | $54,643 | was 0.0% |
| Northwestern Mutual Wealth… | $8,497 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 300 holders, 34.72M shares, $4.07B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 10
Blackford Quentin S.
Officer, Director · 26.86K sh · $3.35M
Aug 10
Murphy Patrick Michael
Officer · 7.09K sh · $884,156
Aug 10
Patterson Chad
Officer · 7.09K sh · $884,170
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A — RTW INVESTMENTS, LP
Aug 13
SC 13G — Artisan Partners Limited Partnership
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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