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Southeastern Asset Management (Longleaf)

Superinvestor

Southeastern Asset Management Inc

SEC CIK
0000807985
Manager
Mason Hawkins
Style
Value
Latest filing
Aug 14, 2026

CMCSA holding history

Comcast Corp in every 13F filed by Southeastern Asset Management (Longleaf), including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CMCSA overviewAll 13F holders of CMCSAFull Q2 2026 holdings

Shares (Q1 2023)
0
Sold out in Q1 2023
Value
$0
% of portfolio
0.0%
Quarters held
8
Since Q1 2021
Holdings of CMCSA by Southeastern Asset Management (Longleaf), by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q1 20230$00.0%−9,531−100.0%Sold outHolders
Q4 20229,531$333.3K<0.1%00.0%UnchangedHolders
Q3 20229,531$280.0K<0.1%00.0%UnchangedHolders
Q2 20229,531$374.0K<0.1%00.0%UnchangedHolders
Q1 20229,531$446.0K<0.1%00.0%UnchangedHolders
Q4 20219,531$480.0K<0.1%−2,494,386−99.6%ReducedHolders
Q3 20212,503,917$140.0M2.7%−2,145,199−46.1%ReducedHolders
Q2 20214,649,116$265.1M5.3%−3,861−0.1%ReducedHolders
Q1 20214,652,977$251.8M5.4%––Holders

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