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Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

FAST holding history

Fastenal Co 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.

FAST overviewAll 13F holders of FASTFull Q2 2026 holdings

Shares (Q2 2026)
1,973,383
Value
$94.8M
% of portfolio
0.1%
Quarters held
22
Since Q1 2021
Holdings of FAST by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,973,383$94.8M0.1%+912,738+86.1%AddedHolders
Q1 20261,060,645$49.2M<0.1%+423,359+66.4%AddedHolders
Q4 2025637,286$25.6M<0.1%+398,330+166.7%AddedHolders
Q3 2025238,956$11.7M<0.1%−1,535,094−86.5%ReducedHolders
Q2 20251,774,050$74.5M0.1%−4,071,114−69.6%ReducedConverted for a 2-for-1 splitHolders
Q1 20252,922,582$226.6M0.2%+2,587,766+772.9%AddedHolders
Q4 2024334,816$24.1M<0.1%+242,611+263.1%AddedHolders
Q3 202492,205$6.59M<0.1%−410,741−81.7%ReducedHolders
Q2 2024502,946$31.6M<0.1%+3,803+0.8%AddedHolders
Q1 2024499,143$38.5M<0.1%+404,800+429.1%AddedHolders
Q4 202394,343$6.11M<0.1%−357,365−79.1%ReducedHolders
Q3 2023451,708$24.7M<0.1%+350,644+347.0%AddedHolders
Q2 2023101,064$5.96M<0.1%−776,781−88.5%ReducedHolders
Q1 2023877,845$47.4M0.1%+572,602+187.6%AddedHolders
Q4 2022305,243$14.4M<0.1%−376,927−55.3%ReducedHolders
Q3 2022682,170$31.4M<0.1%+427,348+167.7%AddedHolders
Q2 2022254,822$12.7M<0.1%+225,952+782.7%AddedHolders
Q1 202228,870$1.72M<0.1%−93,641−76.4%ReducedHolders
Q4 2021122,511$7.85M<0.1%−21,178−14.7%ReducedHolders
Q3 2021143,689$7.42M<0.1%−1,992,193−93.3%ReducedHolders
Q2 20212,135,882$111.1M0.1%+2,026,367+1,850.3%AddedHolders
Q1 2021109,515$5.51M<0.1%––Holders

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