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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

IRM holding history

Iron Mountain Inc in every 13F filed by Citadel Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

IRM overviewAll 13F holders of IRMFull Q2 2026 holdings

Shares (Q2 2026)
343,168
Value
$43.3M
% of portfolio
<0.1%
Quarters held
20
Since Q1 2021
Holdings of IRM by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026343,168$43.3M<0.1%−31,786−8.5%ReducedHolders
Q1 2026374,954$38.3M<0.1%−744,417−66.5%ReducedHolders
Q4 20251,119,371$92.9M0.1%+1,058,080+1,726.3%AddedHolders
Q3 202561,291$6.25M<0.1%−78,500−56.2%ReducedHolders
Q2 2025139,791$14.3M<0.1%−1,112,001−88.8%ReducedHolders
Q1 20251,251,792$107.7M0.1%+647,452+107.1%AddedHolders
Q4 2024604,340$63.5M0.1%+538,470+817.5%AddedHolders
Q3 202465,870$7.83M<0.1%+65,870NewHolders
Q2 20240$00.0%−1,271,739−100.0%Sold outHolders
Q1 20241,271,739$102.0M0.1%−711,113−35.9%ReducedHolders
Q4 20231,982,852$138.8M0.1%+167,956+9.3%AddedHolders
Q3 20231,814,896$107.9M0.1%+1,198,132+194.3%AddedHolders
Q2 2023616,764$35.0M<0.1%+402,227+187.5%AddedHolders
Q1 2023214,537$11.4M<0.1%−216,776−50.3%ReducedHolders
Q4 2022431,313$21.5M<0.1%+242,403+128.3%AddedHolders
Q3 2022188,910$8.31M<0.1%−54,421−22.4%ReducedHolders
Q2 2022243,331$11.8M<0.1%+63,873+35.6%AddedHolders
Q1 2022179,458$9.94M<0.1%+179,458NewHolders
Q4 20210$00.0%−45,263−100.0%Sold outHolders
Q3 202145,263$1.97M<0.1%−129,312−74.1%ReducedHolders
Q2 2021174,575$7.39M<0.1%+146,017+511.3%AddedHolders
Q1 202128,558$1.06M<0.1%––Holders

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