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Livermore
Livermore
ZHEN

D. E. Shaw & Co., Inc.

SEC CIK
0001009207
Latest filing
Aug 14, 2026

IRTC holding history

iRhythm Holdings, Inc. in every 13F filed by D. E. Shaw & Co., Inc., 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)
629,686
Value
$74.9M
% of portfolio
<0.1%
Quarters held
19
Since Q1 2021
Holdings of IRTC by D. E. Shaw & Co., Inc., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026629,686$74.9M<0.1%+75,420+13.6%AddedHolders
Q1 2026554,266$65.4M0.1%+193,597+53.7%AddedHolders
Q4 2025360,669$64.0M<0.1%+23,544+7.0%AddedHolders
Q3 2025337,125$58.0M<0.1%+89,289+36.0%AddedHolders
Q2 2025247,836$38.2M<0.1%+247,836NewHolders
Q4 20240$00.0%−12,853−100.0%Sold outHolders
Q3 202412,853$954.2K<0.1%+12,853NewHolders
Q2 20240$00.0%−2,000−100.0%Sold outHolders
Q1 20242,000$232.0K<0.1%−11,740−85.4%ReducedHolders
Q4 202313,740$1.47M<0.1%−95,140−87.4%ReducedHolders
Q3 2023108,880$10.3M<0.1%+4,059+3.9%AddedHolders
Q2 2023104,821$10.9M<0.1%+62,259+146.3%AddedHolders
Q1 202342,562$5.28M<0.1%−12,969−23.4%ReducedHolders
Q4 202255,531$5.20M<0.1%+13,590+32.4%AddedHolders
Q3 202241,941$5.25M<0.1%−5,323−11.3%ReducedHolders
Q2 202247,264$5.11M<0.1%−31,221−39.8%ReducedHolders
Q1 202278,485$12.4M<0.1%−44,837−36.4%ReducedHolders
Q4 2021123,322$14.5M<0.1%−51,584−29.5%ReducedHolders
Q3 2021174,906$10.2M<0.1%+142,646+442.2%AddedHolders
Q2 202132,260$2.14M<0.1%+30,232+1,490.7%AddedHolders
Q1 20212,028$282.0K<0.1%––Holders

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