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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

MKSI holding history

MKS 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.

MKSI overviewAll 13F holders of MKSIFull Q2 2026 holdings

Shares (Q2 2026)
697,670
Value
$310.3M
% of portfolio
0.2%
Quarters held
19
Since Q1 2021
Holdings of MKSI by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026697,670$310.3M0.2%−249,362−26.3%ReducedHolders
Q1 2026947,032$217.6M0.2%+489,159+106.8%AddedHolders
Q4 2025457,873$73.2M<0.1%+316,715+224.4%AddedHolders
Q3 2025141,158$17.5M<0.1%−4,880−3.3%ReducedHolders
Q2 2025146,038$14.5M<0.1%+146,038NewHolders
Q1 20250$00.0%−37,120−100.0%Sold outHolders
Q4 202437,120$3.87M<0.1%−64,463−63.5%ReducedHolders
Q3 2024101,583$11.0M<0.1%+53,275+110.3%AddedHolders
Q2 202448,308$6.31M<0.1%+48,308NewHolders
Q1 20240$00.0%−27,638−100.0%Sold outHolders
Q4 202327,638$2.84M<0.1%+22,299+417.7%AddedHolders
Q3 20235,339$462.0K<0.1%−93,789−94.6%ReducedHolders
Q2 202399,128$10.7M<0.1%+45,535+85.0%AddedHolders
Q1 202353,593$4.75M<0.1%+52,259+3,917.5%AddedHolders
Q4 20221,334$113.0K<0.1%−5,344−80.0%ReducedHolders
Q3 20226,678$552.0K<0.1%−167,699−96.2%ReducedHolders
Q2 2022174,377$17.9M<0.1%+174,377NewHolders
Q1 20220$00.0%−20,233−100.0%Sold outHolders
Q4 202120,233$3.52M<0.1%−18,021−47.1%ReducedHolders
Q3 202138,254$5.77M<0.1%−19,949−34.3%ReducedHolders
Q2 202158,203$10.4M<0.1%+44,030+310.7%AddedHolders
Q1 202114,173$2.63M<0.1%––Holders

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