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Livermore
Livermore
ZHEN

Millennium Management LLC

SEC CIK
0001273087
Latest filing
Aug 14, 2026

CCOI holding history

Cogent Communications Holdings, Inc. in every 13F filed by Millennium Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CCOI overviewAll 13F holders of CCOIFull Q2 2026 holdings

Shares (Q2 2026)
119,138
Value
$1.65M
% of portfolio
<0.1%
Quarters held
19
Since Q1 2021
Holdings of CCOI by Millennium Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026119,138$1.65M<0.1%−109,258−47.8%ReducedHolders
Q1 2026228,396$4.30M<0.1%+189,613+488.9%AddedHolders
Q4 202538,783$836.2K<0.1%−40,956−51.4%ReducedHolders
Q3 202579,739$3.06M<0.1%+58,700+279.0%AddedHolders
Q2 202521,039$1.01M<0.1%−14,660−41.1%ReducedHolders
Q1 202535,699$2.19M<0.1%+31,171+688.4%AddedHolders
Q4 20244,528$349.0K<0.1%−8,863−66.2%ReducedHolders
Q3 202413,391$1.02M<0.1%+13,391NewHolders
Q2 20240$00.0%−21,252−100.0%Sold outHolders
Q1 202421,252$1.39M<0.1%+15,433+265.2%AddedHolders
Q4 20235,819$442.6K<0.1%−19,718−77.2%ReducedHolders
Q3 202325,537$1.58M<0.1%+5,272+26.0%AddedHolders
Q2 202320,265$1.36M<0.1%+14,077+227.5%AddedHolders
Q1 20236,188$394.0K<0.1%−15,457−71.4%ReducedHolders
Q4 202221,645$1.24M<0.1%−363−1.6%ReducedHolders
Q3 202222,008$1.15M<0.1%+22,008NewHolders
Q2 20220$00.0%−3,583−100.0%Sold outHolders
Q1 20223,583$238.0K<0.1%+3,583NewHolders
Q4 20210$00.0%−141,910−100.0%Sold outHolders
Q3 2021141,910$10.1M<0.1%+64,387+83.1%AddedHolders
Q2 202177,523$5.96M<0.1%−7,099−8.4%ReducedHolders
Q1 202184,622$5.82M<0.1%––Holders

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