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Livermore
Livermore
ZHEN

Comcast Corp

CMCSA
Exchange
Nasdaq
Industry
Cable & Other Pay Television Services
SEC CIK
0001166691

No open-market purchases or sales by Comcast Corp insiders were filed in the last 90 days; 1,902 institutions reported holding it in 13F filings for Q2 2026, worth $77.1B in total; 5 superinvestors hold it, including Harris Associates (Oakmark) and Gardner Russo & Quinn.

Other share classesCCZ

Superinvestors holding CMCSA, Q2 2026

5 superinvestors report holding Comcast Corp on Form 13F, worth $283.8M in total. Weight is Comcast Corp's share of each 13F portfolio; actions compare shares with Q1 2026.

See all superinvestors
Superinvestors holding CMCSA in Q2 2026
Superinvestor% of portfolioSharesValuevs. previous quarter
Harris Associates (Oakmark)Bill Nygren0.2%7,173,464$176.1MReduced−72.9%
Gardner Russo & QuinnTom Russo0.6%2,193,660$53.9MReduced−2.6%
Greenlight CapitalDavid Einhorn0.8%1,345,780$33.0MNew
Markel GroupTom Gayner0.1%802,074$19.7MReduced−16.6%
Weitz Investment ManagementWally Weitz0.1%47,000$1.15MUnchanged

Moves by quarter

Superinvestors that opened, added to, trimmed or sold out of CMCSA each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.

  1. Q2 2026

    5 superinvestors holding at quarter end

    New
    Greenlight Capital
    Reduced
    Harris Associates (Oakmark) (−72.9%), Gardner Russo & Quinn (−2.6%), Markel Group (−16.6%)
    Sold out
    Soros Fund Management

  2. Q1 2026

    5 superinvestors holding at quarter end

    Reduced
    Harris Associates (Oakmark) (−3.7%), Gardner Russo & Quinn (−2.0%), Weitz Investment Management (−44.7%), Soros Fund Management (−80.4%)

  3. Q4 2025

    5 superinvestors holding at quarter end

    New
    Soros Fund Management
    Added
    Harris Associates (Oakmark) (+24.5%)
    Reduced
    Gardner Russo & Quinn (−5.9%), Weitz Investment Management (−81.2%)

  4. Q3 2025

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+3.1%)
    Reduced
    Gardner Russo & Quinn (−4.4%)

  5. Q2 2025

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+3.9%)
    Reduced
    Gardner Russo & Quinn (−2.2%)

  6. Q1 2025

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+0.5%), Weitz Investment Management (+375.3%)
    Reduced
    Gardner Russo & Quinn (−6.0%)
    Sold out
    Viking Global Investors

  7. Q4 2024

    5 superinvestors holding at quarter end

    Added
    Viking Global Investors (+540.8%)
    Reduced
    Harris Associates (Oakmark) (−4.4%), Gardner Russo & Quinn (−6.3%), Markel Group (−11.0%)

  8. Q3 2024

    5 superinvestors holding at quarter end

    New
    Viking Global Investors
    Reduced
    Harris Associates (Oakmark) (−0.4%), Gardner Russo & Quinn (−3.1%)

  9. Q2 2024

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+4.3%), Markel Group (+0.8%), Weitz Investment Management (+42.9%)
    Reduced
    Gardner Russo & Quinn (−1.0%)

  10. Q1 2024

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+9.3%), Markel Group (+1.1%), Weitz Investment Management (+2.9%)
    Reduced
    Gardner Russo & Quinn (−6.1%)

  11. Q4 2023

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+10.9%)
    Reduced
    Gardner Russo & Quinn (−6.6%)

  12. Q3 2023

    4 superinvestors holding at quarter end

    Added
    Markel Group (+0.1%)
    Reduced
    Harris Associates (Oakmark) (−2.4%), Gardner Russo & Quinn (−2.4%)

  13. Q2 2023

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+6.4%), Markel Group (+5.4%)
    Reduced
    Gardner Russo & Quinn (−4.0%)

  14. Q1 2023

    4 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+1.9%), Markel Group (+8.1%)
    Reduced
    Gardner Russo & Quinn (−1.3%)
    Sold out
    Southeastern Asset Management (Longleaf)

  15. Q4 2022

    5 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+12.7%), Markel Group (+12.5%)
    Reduced
    Gardner Russo & Quinn (−4.3%)

  16. Q3 2022

    5 superinvestors holding at quarter end

    Added
    Markel Group (+14.1%)
    Reduced
    Harris Associates (Oakmark) (−11.7%), Gardner Russo & Quinn (−15.6%), Weitz Investment Management (−87.4%)

  17. Q2 2022

    5 superinvestors holding at quarter end

    Added
    Harris Associates (Oakmark) (+4.2%), Markel Group (+15.0%)
    Reduced
    Gardner Russo & Quinn (−3.2%), Weitz Investment Management (−4.3%)
    Sold out
    Viking Global Investors

  18. Q1 2022

    6 superinvestors holding at quarter end

    Added
    Markel Group (+18.5%)
    Reduced
    Harris Associates (Oakmark) (−5.4%), Viking Global Investors (−0.9%), Gardner Russo & Quinn (−3.1%), Weitz Investment Management (−4.4%)
    Sold out
    Trian Fund Management, Third Point

  19. Q4 2021

    8 superinvestors holding at quarter end

    New
    Third Point
    Added
    Viking Global Investors (+39.7%), Weitz Investment Management (+0.5%), Markel Group (+0.8%)
    Reduced
    Harris Associates (Oakmark) (−5.1%), Gardner Russo & Quinn (−3.0%), Southeastern Asset Management (Longleaf) (−99.6%)

  20. Q3 2021

    7 superinvestors holding at quarter end

    New
    Viking Global Investors
    Reduced
    Trian Fund Management (−3.9%), Harris Associates (Oakmark) (−3.5%), Gardner Russo & Quinn (−3.2%), Southeastern Asset Management (Longleaf) (−46.1%)
    Sold out
    Maverick Capital

  21. Q2 2021

    7 superinvestors holding at quarter end

    Added
    Trian Fund Management (+4.7%), Harris Associates (Oakmark) (+0.9%), Markel Group (+0.5%), Maverick Capital (+1,886.7%)
    Reduced
    Gardner Russo & Quinn (−3.0%), Southeastern Asset Management (Longleaf) (−0.1%), Weitz Investment Management (−8.2%)