Comcast Corp
Ownership
Ownership Structure
Who owns Comcast Corp (CMCSA)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.2% of the shares are freely tradable; institutional investors hold 93.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.88 | 314,985,765 | -0.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.57 | 233,154,772 | +0.0 | 03/31/2026 |
| State Street Corp | 5.15 | 182,735,113 | -2.2 | 03/31/2026 |
| Charles Schwab Investment Management Inc | 3.43 | 121,558,654 | +212.4 | 03/31/2026 |
| Amvescap Plc. | 3.38 | 119,801,906 | -4.1 | 03/31/2026 |
| Capital Research Global Investors | 3.27 | 116,113,743 | +29.6 | 06/30/2026 |
| Dodge & Cox | 3.27 | 115,903,125 | +2.5 | 06/30/2026 |
| Capital World Investors | 2.95 | 104,629,299 | -42.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.20 | 113,445,404 | +0.3 | 07/31/2026 |
| Schwab US Dividend Equity ETF™ | 2.74 | 97,312,321 | +0.3 | 08/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Roberts Brian L | Chairman of Board & Co-CEO | 5,391,826 | 122,394,450 $ | Sep 2, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 2, 2026 | Roberts Brian L | Chairman of Board & Co-CEO | Other | 101,900 | 0.00 | – |
| Aug 5, 2026 | Roberts Brian L | Chairman of Board & Co-CEO | Other | 204,100 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.