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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, 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.

Institutional holdersQ1 2026: 305 institutions
Q1 2021: 217 institutionsQ2 2021: 183 institutionsQ3 2021: 186 institutionsQ4 2021: 213 institutionsQ1 2022: 222 institutionsQ2 2022: 242 institutionsQ3 2022: 233 institutionsQ4 2022: 208 institutionsQ1 2023: 209 institutionsQ2 2023: 203 institutionsQ3 2023: 224 institutionsQ4 2023: 222 institutionsQ1 2024: 253 institutionsQ2 2024: 228 institutionsQ3 2024: 242 institutionsQ4 2024: 227 institutionsQ1 2025: 256 institutionsQ2 2025: 304 institutionsQ3 2025: 338 institutionsQ4 2025: 335 institutionsQ1 2026: 305 institutionsQ2 2026: 303 institutions
Value heldQ1 2026: $4.19B
Q1 2021: $4.33BQ2 2021: $1.93BQ3 2021: $1.64BQ4 2021: $3.43BQ1 2022: $4.78BQ2 2022: $3.28BQ3 2022: $3.81BQ4 2022: $2.92BQ1 2023: $4.18BQ2 2023: $3.47BQ3 2023: $3.12BQ4 2023: $3.53BQ1 2024: $4.00BQ2 2024: $3.82BQ3 2024: $2.55BQ4 2024: $3.09BQ1 2025: $3.77BQ2 2025: $5.44BQ3 2025: $5.97BQ4 2025: $6.24BQ1 2026: $4.19BQ2 2026: $4.24B
Institutions holding IRTC and their total value by quarter
QuarterHoldersValue
Q2 2026303$4.24B
Q1 2026305$4.19B
Q4 2025335$6.24B
Q3 2025338$5.97B
Q2 2025304$5.44B
Q1 2025256$3.77B
Q4 2024227$3.09B
Q3 2024242$2.55B
Q2 2024228$3.82B
Q1 2024253$4.00B
Q4 2023222$3.53B
Q3 2023224$3.12B
Q2 2023203$3.47B
Q1 2023209$4.18B
Q4 2022208$2.92B
Q3 2022233$3.81B
Q2 2022242$3.28B
Q1 2022222$4.78B
Q4 2021213$3.43B
Q3 2021186$1.64B
Q2 2021183$1.93B
Q1 2021217$4.33B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc.; share changes are against Q4 2025.

Institutions holding IRTC in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Allianz Asset Management GmbH1,900$224.2K0.00%−600−24.0%Reduced
Quadrant Capital Group LLC1,940$229.0K0.01%00.0%Unchanged
Gsa Capital Partners LLP1,939$229.0K0.01%+1,939New
State of Alaska, Department of Revenue2,002$236.0K0.00%00.0%Unchanged
Frank, Rimerman Advisors LLC2,045$241.4K0.02%00.0%Unchanged
Swiss Life Asset Management Ltd2,139$252.4K0.00%+678+46.4%Added
Axq Capital, LP2,172$256.3K0.03%+2,172New
Virtus ETF Advisers LLC2,201$259.8K0.12%+2,201New
Acadian Asset Management LLC2,407$284.0K0.00%−1,627−40.3%Reduced
Bessemer Group Inc2,432$286.0K0.00%−319,552−99.2%Reduced
Capstone Investment Advisors, LLC2,535$299.2K0.00%+2,535New
Ameritas Investment Partners, Inc.2,589$305.6K0.01%00.0%Unchanged
Everence Capital Management Inc2,590$306.0K0.02%00.0%Unchanged
Vise Technologies, Inc.1,727$306.4K0.01%00.0%Unchanged
Two Sigma Securities, LLC2,701$318.8K0.04%+2,701New
Truist Financial Corp2,709$319.7K0.00%−888−24.7%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.2,798$330.2K0.00%+48+1.7%Added
Bayforest Capital Ltd2,859$337.4K0.38%−36−1.2%Reduced
JustInvest LLC2,977$351.3K0.00%+505+20.4%Added
Tower Research Capital LLC (TRC)3,000$354.1K0.01%+1,994+198.2%Added
Xponance, Inc.3,001$354.2K0.00%+468+18.5%Added
Teacher Retirement System of Texas3,028$357.4K0.00%+3,028New
Blueshift Asset Management, LLC3,063$361.5K0.11%+3,063New
Stephens Inc3,085$364.1K0.00%+319+11.5%Added
Morris Retirement Advisors, LLC3,210$378.9K0.15%+441+15.9%Added
IMA Wealth, Inc.3,230$381.2K0.04%00.0%Unchanged
Ancora Advisors, LLC3,230$381.2K0.01%00.0%Unchanged
Los Angeles Capital Management LLC3,235$381.8K0.00%+393+13.8%Added
Public Employees Retirement Association of Colorado3,405$402.0K0.00%00.0%Unchanged
Vident Advisory, LLC3,535$417.2K0.00%+1,243+54.2%Added
LPL Financial LLC3,685$434.9K0.00%+410+12.5%Added
Great West Life Assurance Co3,724$441.0K0.00%+12+0.3%Added
Cim Investment Mangement Inc4,491$530.0K0.14%−1,011−18.4%Reduced
Headlands Technologies LLC4,581$540.6K0.06%−2,104−31.5%Reduced
ProShare Advisors LLC4,737$559.1K0.00%−1,207−20.3%Reduced
Bridgefront Capital, LLC4,893$577.5K0.14%+4,893New
Virginia Retirement Systems Et Al5,050$596.0K0.00%+200+4.1%Added
Inceptionr LLC5,420$639.7K0.15%+1,993+58.2%Added
Voya Investment Management LLC5,492$648.2K0.00%−3,980−42.0%Reduced
Pictet Asset Management Holding SA5,492$648.2K0.00%+580+11.8%Added
Fox Run Management, L.L.C.5,767$658.6K0.12%+1,334+30.1%Added
CIBC Bancorp USA Inc.5,777$681.8K0.00%+5,777New
SG Americas Securities, LLC5,870$693.0K0.00%−5,335−47.6%Reduced
Values First Advisors, Inc.5,937$700.6K0.37%+172+3.0%Added
Squarepoint Ops LLC6,164$727.5K0.00%−87,544−93.4%Reduced
Jones Financial Companies LLLP6,234$736.2K0.00%+5,967+2,234.8%Added
Captrust Financial Advisors6,270$740.0K0.00%+467+8.0%Added
Exchange Traded Concepts, LLC6,876$811.5K0.01%+2,020+41.6%Added
KLP Kapitalforvaltning AS7,100$837.9K0.00%+200+2.9%Added
Pinnacle Financial Partners, Inc.7,129$841.4K0.01%−16−0.2%Reduced
Hennion & Walsh Asset Management, Inc.7,903$932.7K0.03%−217−2.7%Reduced
Cinctive Capital Management LP7,957$939.1K0.06%+2,983+60.0%Added
Vanguard Investments Australia, Ltd.7,989$942.9K0.00%+7,989New
Adage Capital Partners GP, L.L.C.8,289$978.3K0.00%−116,711−93.4%Reduced
State Board of Administration of Florida Retirement System8,578$1.01M0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey8,649$1.02M0.01%00.0%Unchanged
Allstate Corp8,739$1.03M0.01%+8,739New
Arizona State Retirement System8,850$1.04M0.01%−227−2.5%Reduced
Ascent Group, LLC9,306$1.10M0.04%−281−2.9%Reduced
Prosight Management, LP10,000$1.18M0.19%+10,000New
Intech Investment Management LLC10,105$1.19M0.01%−5,147−33.7%Reduced
Abn Amro Investment Solutions10,139$1.20M0.02%−62−0.6%Reduced
Handelsbanken Fonder AB10,439$1.23M0.00%00.0%Unchanged
WoodTrust Financial Corp10,520$1.24M0.16%+450+4.5%Added
Entropy Technologies, LP10,652$1.26M0.06%+3,963+59.2%Added
B. Metzler seel. Sohn & Co. AG11,119$1.31M0.01%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)11,388$1.34M0.00%+2,339+25.8%Added
Algert Global LLC11,453$1.35M0.02%−24,756−68.4%Reduced
Royal Bank of Canada11,731$1.38M0.00%−254−2.1%Reduced
Vanguard Global Advisers, LLC13,158$1.55M0.00%+13,158New
RE Advisers Corp13,300$1.57M0.04%−14,100−51.5%Reduced
Landscape Capital Management, L.L.C.13,626$1.61M0.10%+13,626New
Janus Henderson Group PLC13,856$1.64M0.00%00.0%Unchanged
State of New Jersey Common Pension Fund D14,155$1.67M0.01%+1,443+11.4%Added
CI Private Wealth, LLC15,344$1.81M0.00%+15,344New
Universal- Beteiligungs- und Servicegesellschaft mbH15,429$1.82M0.00%−23,105−60.0%Reduced
Fifth Third Bancorp15,452$1.82M0.00%+15,362+17,068.9%Added
Harbor Capital Advisors, Inc.15,661$1.85M0.15%+7,055+82.0%Added
Creative Planning15,841$1.87M0.00%+1,691+12.0%Added
Russell Investments Group, Ltd.16,083$1.90M0.00%−13,936−46.4%Reduced
Congress Asset Management Co16,461$1.94M0.01%+16,461New
Brevan Howard Capital Management LP16,787$1.98M0.02%+11,812+237.4%Added
Prudential Financial Inc17,112$2.02M0.00%−23,312−57.7%Reduced
MetLife Investment Management17,423$2.06M0.01%−440−2.5%Reduced
Trillium Asset Management, LLC16,719$2.14M0.07%+16,719New
Quantinno Capital Management LP18,621$2.20M0.00%+17,158+1,172.8%Added
Future Fund LLC18,878$2.23M0.78%+4,101+27.8%Added
One Capital Management, LLC18,883$2.23M0.06%+4,106+27.8%Added
XTX Topco Ltd19,534$2.31M0.04%+14,718+305.6%Added
BNP Paribas Arbitrage, SA19,993$2.36M0.00%−53,658−72.9%Reduced
Mutual of America Capital Management LLC21,097$2.49M0.03%−54−0.3%Reduced
Nomura Asset Management International Inc.21,238$2.51M0.00%−18,509−46.6%Reduced
Kampmann Melissa S.22,010$2.60M2.08%−610−2.7%Reduced
Victory Capital Management Inc22,172$2.62M0.00%−21,043−48.7%Reduced
Mirae Asset Global ETFs Holdings Ltd.23,273$2.75M0.00%−2,530−9.8%Reduced
Susquehanna International Group, LLP24,151$2.85M0.00%+19,392+407.5%Added
Banque Pictet & Cie SA24,815$2.93M0.03%−2,296−8.5%Reduced
Wells Fargo & Company26,898$3.17M0.00%−18,388−40.6%Reduced
Castleark Management LLC27,193$3.21M0.11%−23,000−45.8%Reduced
Vanguard Asset Management, Ltd28,645$3.38M0.00%+28,645New