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 | 8.82 | 313,212,228 | -0.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.55 | 232,645,894 | -0.2 | 06/30/2026 |
| State Street Corp | 5.49 | 195,059,449 | +6.7 | 06/30/2026 |
| Charles Schwab Investment Management Inc | 3.75 | 133,095,082 | +9.5 | 06/30/2026 |
| Amvescap Plc. | 3.52 | 125,126,243 | +4.4 | 06/30/2026 |
| Capital Research Global Investors | 3.27 | 116,113,743 | +29.6 | 06/30/2026 |
| Dodge & Cox | 3.26 | 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 | 3.16 | 112,338,705 | -0.8 | 09/30/2026 |
| Schwab US Dividend Equity ETF™ | 2.84 | 100,681,670 | +0.2 | 10/30/2026 |
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 | 134,256,467 $ | Sep 2, 2026 | direct |
| Honickman Jeffrey A | Director | 278,627 | 6,937,815 $ | Sep 30, 2026 | direct |
| Baltimore Thomas J Jr | Director | 43,379 | 1,080,138 $ | Sep 30, 2026 | direct |
| Brady Louise F. | Director | 36,810 | 916,561 $ | Sep 30, 2026 | direct |
| Breen Edward D | Director | 28,257 | 703,606 $ | Sep 30, 2026 | direct |
| Smith Gordon | Director | 12,221 | 304,309 $ | Sep 30, 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 30, 2026 | Smith Gordon | Director | Other | 1,552 | 0.00 | – |
| Sep 30, 2026 | Honickman Jeffrey A | Director | Other | 2,011 | 0.00 | – |
| Sep 30, 2026 | Breen Edward D | Director | Other | 920 | 0.00 | – |
| Sep 30, 2026 | Brady Louise F. | Director | Other | 1,552 | 0.00 | – |
| Sep 30, 2026 | Baltimore Thomas J Jr | Director | Other | 1,552 | 0.00 | – |
| 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: November 4, 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.