ValuationViz

CMCSA fund manager activity

COMCAST CORP-CLASS A · US. Reported by 38 tracked fund managers in their 13F filings, Q1 2012 to Q3 2026.

Q3 2026

ManagerActivitySharesValue% of portfolioFiled
David Katz - Matrix Asset AdvisorsAdded1,017,294$22,136,3111.82%Oct 13, 2026

Q2 2026

ManagerActivitySharesValue% of portfolioFiled
Glenn Greenberg - Brave Warrior AdvisorsNo change31,094$763,3580.02%Aug 14, 2026
Dodge & Cox FundsAdded115,903,125$2,845,421,7191.49%Aug 13, 2026
First Eagle Investment ManagementAdded38,172,985$937,146,7751.54%Aug 24, 2026
First Pacific AdvisorsAdded8,676,664$213,012,1012.67%Aug 14, 2026
Ken Fisher - Fisher Asset ManagementAdded37,078$910,2830.00%Aug 4, 2026
Jeremy Grantham - GMOTrimmed1,719,869$42,222,7840.10%Aug 13, 2026
Thomas Russo - Gardner Russo & QuinnTrimmed2,193,660$53,854,3500.60%Aug 13, 2026
Joel Greenblatt - Gotham Asset ManagementTrimmed658,069$16,155,5940.04%Aug 14, 2026
David Einhorn - Greenlight CapitalNew1,345,780$33,038,8990.85%Aug 14, 2026
Hillman Capital ManagementAdded100,843$2,475,6961.79%Aug 14, 2026
Kahn Brothers GroupSold out——0.00%Aug 17, 2026
Thomas Gayner - Markel GroupTrimmed802,074$19,690,9170.15%Jul 31, 2026
David Katz - Matrix Asset AdvisorsAdded991,213$24,334,2721.98%Jul 15, 2026
Bill Nygren - Oakmark FundsTrimmed7,173,464$176,108,5420.23%Aug 14, 2026
Torray FundsAdded863,372$21,195,7832.86%Jul 30, 2026
Tweedy BrowneTrimmed31,330$769,1520.06%Aug 7, 2026
Wallace Weitz - Weitz Investment ManagementNo change47,000$1,153,8500.08%Aug 12, 2026
Yacktman Asset ManagementAdded1,170,500$28,735,7750.36%Aug 11, 2026

Older quarters