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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

SPOK holding history

Spok Holdings, 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.

SPOK overviewAll 13F holders of SPOKFull Q2 2026 holdings

Shares (Q2 2026)
183,447
Value
$1.88M
% of portfolio
<0.1%
Quarters held
21
Since Q1 2021
Holdings of SPOK by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026183,447$1.88M<0.1%+165,672+932.1%AddedHolders
Q1 202617,775$193.7K<0.1%−31,917−64.2%ReducedHolders
Q4 202549,692$655.4K<0.1%+26,335+112.7%AddedHolders
Q3 202523,357$402.9K<0.1%−42,060−64.3%ReducedHolders
Q2 202565,417$1.16M<0.1%−88,903−57.6%ReducedHolders
Q1 2025154,320$2.54M<0.1%+123,508+400.8%AddedHolders
Q4 202430,812$494.5K<0.1%−51,645−62.6%ReducedHolders
Q3 202482,457$1.24M<0.1%+82,457NewHolders
Q2 20240$00.0%−80,075−100.0%Sold outHolders
Q1 202480,075$1.28M<0.1%+40,062+100.1%AddedHolders
Q4 202340,013$619.4K<0.1%+39,902+35,947.7%AddedHolders
Q3 2023111$1.58K<0.1%−16,796−99.3%ReducedHolders
Q2 202316,907$224.7K<0.1%−1,649−8.9%ReducedHolders
Q1 202318,556$188.0K<0.1%−21,789−54.0%ReducedHolders
Q4 202240,345$330.4K<0.1%+21,159+110.3%AddedHolders
Q3 202219,186$147.0K<0.1%−22,031−53.5%ReducedHolders
Q2 202241,217$259.0K<0.1%+1,369+3.4%AddedHolders
Q1 202239,848$318.0K<0.1%−30,979−43.7%ReducedHolders
Q4 202170,827$661.0K<0.1%−16,710−19.1%ReducedHolders
Q3 202187,537$895.0K<0.1%+2,424+2.8%AddedHolders
Q2 202185,113$819.0K<0.1%+62,816+281.7%AddedHolders
Q1 202122,297$233.0K<0.1%––Holders

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