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First Manhattan Co

SEC CIK
0000728083
Latest filing
Aug 14, 2026

CMCSA holding history

Comcast Corp in every 13F filed by First Manhattan Co, 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 (Q2 2026)
1,072,332
Value
$26.3M
% of portfolio
0.1%
Quarters held
22
Since Q1 2021
Holdings of CMCSA by First Manhattan Co, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,072,332$26.3M0.1%−7,372−0.7%ReducedHolders
Q1 20261,079,704$31.0M0.1%−28,543−2.6%ReducedHolders
Q4 20251,108,247$33.1M0.1%−417,058−27.3%ReducedHolders
Q3 20251,525,305$47.9M0.1%−1,377,846−47.5%ReducedHolders
Q2 20252,903,151$103.6M0.3%−601,352−17.2%ReducedHolders
Q1 20253,504,503$129.3M0.4%−437,724−11.1%ReducedHolders
Q4 20243,942,227$148.4M0.4%−477,618−10.8%ReducedHolders
Q3 20244,419,845$184.6M0.5%+37,633+0.9%AddedHolders
Q2 20244,382,212$171.6M0.6%−68,756−1.5%ReducedHolders
Q1 20244,450,968$192.9M0.6%+20,796+0.5%AddedHolders
Q4 20234,430,172$194.1M0.7%−59,947−1.3%ReducedHolders
Q3 20234,490,119$198.6M0.7%−184,167−3.9%ReducedHolders
Q2 20234,674,286$193.7M0.7%−77,417−1.6%ReducedHolders
Q1 20234,751,703$179.6M0.7%−45,896−1.0%ReducedHolders
Q4 20224,797,599$167.3M0.6%+40,118+0.8%AddedHolders
Q3 20224,757,481$139.1M0.6%−587,780−11.0%ReducedHolders
Q2 20225,345,261$209.2M0.8%+247,462+4.9%AddedHolders
Q1 20225,097,799$238.7M0.8%+195,355+4.0%AddedHolders
Q4 20214,902,444$246.7M0.8%+354,519+7.8%AddedHolders
Q3 20214,547,925$254.4M0.9%+129,911+2.9%AddedHolders
Q2 20214,418,014$251.9M0.9%+253,030+6.1%AddedHolders
Q1 20214,164,984$225.4M1.0%––Holders

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