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Livermore
Livermore
ZHEN

D. E. Shaw & Co., Inc.

SEC CIK
0001009207
Latest filing
Aug 14, 2026

IRWD holding history

Ironwood Pharmaceuticals 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.

IRWD overviewAll 13F holders of IRWDFull Q2 2026 holdings

Shares (Q2 2026)
122,907
Value
$517.4K
% of portfolio
<0.1%
Quarters held
22
Since Q1 2021
Holdings of IRWD by D. E. Shaw & Co., Inc., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026122,907$517.4K<0.1%+74,969+156.4%AddedHolders
Q1 202647,938$168.3K<0.1%−69,508−59.2%ReducedHolders
Q4 2025117,446$395.8K<0.1%−254,824−68.5%ReducedHolders
Q3 2025372,270$487.7K<0.1%−1,297,369−77.7%ReducedHolders
Q2 20251,669,639$1.20M<0.1%+1,559,915+1,421.7%AddedHolders
Q1 2025109,724$161.3K<0.1%+41,971+61.9%AddedHolders
Q4 202467,753$300.1K<0.1%−176,928−72.3%ReducedHolders
Q3 2024244,681$1.01M<0.1%−140,268−36.4%ReducedHolders
Q2 2024384,949$2.51M<0.1%+96,296+33.4%AddedHolders
Q1 2024288,653$2.51M<0.1%+59,623+26.0%AddedHolders
Q4 2023229,030$2.62M<0.1%−207,233−47.5%ReducedHolders
Q3 2023436,263$4.20M<0.1%−482,735−52.5%ReducedHolders
Q2 2023918,998$9.78M<0.1%+118,275+14.8%AddedHolders
Q1 2023800,723$8.42M<0.1%+173,337+27.6%AddedHolders
Q4 2022627,386$7.77M<0.1%+69,952+12.5%AddedHolders
Q3 2022557,434$5.78M<0.1%−193,995−25.8%ReducedHolders
Q2 2022751,429$8.66M<0.1%−434,953−36.7%ReducedHolders
Q1 20221,186,382$14.9M<0.1%+302,288+34.2%AddedHolders
Q4 2021884,094$10.3M<0.1%−441,333−33.3%ReducedHolders
Q3 20211,325,427$17.3M<0.1%+341,189+34.7%AddedHolders
Q2 2021984,238$12.7M<0.1%−536,802−35.3%ReducedHolders
Q1 20211,521,040$17.0M<0.1%––Holders

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