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Livermore
Livermore
ZHEN

Blair William & Co

SEC CIK
0000902367
Latest filing
Aug 11, 2026

IRTC holding history

iRhythm Holdings, Inc. in every 13F filed by Blair William & Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

IRTC overviewAll 13F holders of IRTCFull Q2 2026 holdings

Shares (Q2 2026)
524,690
Value
$62.4M
% of portfolio
0.2%
Quarters held
22
Since Q1 2021
Holdings of IRTC by Blair William & Co, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026524,690$62.4M0.2%−103,695−16.5%ReducedHolders
Q1 2026628,385$74.2M0.2%−90,412−12.6%ReducedHolders
Q4 2025718,797$127.5M0.3%−21,924−3.0%ReducedHolders
Q3 2025740,721$127.4M0.3%+1,390+0.2%AddedHolders
Q2 2025739,331$113.8M0.3%−50,668−6.4%ReducedHolders
Q1 2025789,999$82.7M0.2%+185,262+30.6%AddedHolders
Q4 2024604,737$54.5M0.2%−39,704−6.2%ReducedHolders
Q3 2024644,441$47.8M0.1%−154,639−19.4%ReducedHolders
Q2 2024799,080$86.0M0.3%−33,854−4.1%ReducedHolders
Q1 2024832,934$96.6M0.3%+27,842+3.5%AddedHolders
Q4 2023805,092$86.2M0.3%−306,325−27.6%ReducedHolders
Q3 20231,111,417$104.8M0.4%+68,983+6.6%AddedHolders
Q2 20231,042,434$108.7M0.4%+33,745+3.3%AddedHolders
Q1 20231,008,689$125.1M0.5%+95,737+10.5%AddedHolders
Q4 2022912,952$85.5M0.4%+89,871+10.9%AddedHolders
Q3 2022823,081$103.1M0.5%+144,685+21.3%AddedHolders
Q2 2022678,396$73.3M0.3%−12,767−1.8%ReducedHolders
Q1 2022691,163$108.8M0.4%−63,892−8.5%ReducedHolders
Q4 2021755,055$88.9M0.3%+64,831+9.4%AddedHolders
Q3 2021690,224$40.4M0.1%+55,540+8.8%AddedHolders
Q2 2021634,684$42.1M0.1%+136,521+27.4%AddedHolders
Q1 2021498,163$69.2M0.3%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.