Comcast Corporation — SEC Form 4 Filings
SEC Form 4 Data
Track insider buying and selling activity for Comcast Corporation (CMCSA). Data sourced from SEC EDGAR Form 4 filings and analyzed by StoxPulse AI for significance.
13
$2.4M total
7
$5.2M total
1.9x
Bullish Signal
20
Form 4 transactions
Buy − Sell value
Sale · Mar 5, 2026
ROBERTS · Sale
Comcast Corporation insiders filed 20 Form 4 transactions in the period analyzed: 13 purchases totaling $2.4M and 7 sales totaling $5.2M. That puts the buy-to-sell ratio at 1.86, which we read as bullish on a directional basis.
The most active filer was ROBERTS BRIAN L with 3 transactions in this window. 16 of the 20 filings are flagged as routine — typically 10b5-1 scheduled trades rather than discretionary signals.
Form 4 filings are point-in-time disclosures and do not constitute investment advice. Routine sales under pre-arranged 10b5-1 plans should not be read as bearish.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| ROBERTS BRIAN L | Chairman of Board & Co-CEO | Sale | 202,500 | $0.00 | $0.00 | 2026-05-19 |
| BREEN EDWARD D | Director | Buy | 32,440 | $0.00 | $0.00 | 2026-05-11 |
| Murdock Daniel C. | EVP & Chief Accounting Officer | Buy | 5,268 | $0.00 | $0.00 | 2026-04-03 |
| Murdock Daniel C. | EVP & Chief Accounting Officer | Sale | 2,073 | $27.93 | $58K | 2026-04-03 |
| Smith Gordon | Director | Buy | 1,176 | $0.00 | $0.00 | 2026-03-31 |
| Honickman Jeffrey A | Director | Buy | 1,524 | $0.00 | $0.00 | 2026-03-31 |
| BREEN EDWARD D | Director | Buy | 697 | $0.00 | $0.00 | 2026-03-31 |
| Brady Louise F. | Director | Buy | 1,176 | $0.00 | $0.00 | 2026-03-31 |
| Baltimore Thomas J Jr | Director | Buy | 1,176 | $0.00 | $0.00 | 2026-03-31 |
| Khoury Jennifer | Chief Communications Officer | Buy | 10,867 | $28.38 | $308K | 2026-03-17 |
| Khoury Jennifer | Chief Communications Officer | Sale | 10,514 | $30.08 | $316K | 2026-03-17 |
| BREEN EDWARD D | Director | Buy | 30,000 | $0.00 | $0.00 | 2026-03-17 |
| Armstrong Jason | CFO | Buy | 73,497 | $28.38 | $2.1M | 2026-03-05 |
| Armstrong Jason | CFO | Sale | 4,494 | $31.73 | $143K | 2026-03-05 |
| Armstrong Jason | CFO | Sale | 69,003 | $31.75 | $2.2M | 2026-03-05 |
| ROBERTS BRIAN L | Chairman of Board & Co-CEO | Buy | 45,578 | $0.00 | $0.00 | 2026-03-01 |
| ROBERTS BRIAN L | Chairman of Board & Co-CEO | Sale | 45,578 | $30.96 | $1.4M | 2026-03-01 |
| Cavanagh Michael J | Co-CEO | Buy | 34,980 | $0.00 | $0.00 | 2026-03-01 |
| Cavanagh Michael J | Co-CEO | Sale | 34,980 | $30.96 | $1.1M | 2026-03-01 |
| Khoury Jennifer | Chief Communications Officer | Buy | 4,254 | $0.00 | $0.00 | 2026-03-01 |
Insider trading data for Comcast Corporation (CMCSA) is sourced directly from SEC Form 4 filings on the EDGAR database. Corporate insiders — including directors, officers, and shareholders owning more than 10% of the company — are legally required to report their transactions within two business days.
Insider purchases are often considered a bullish signal because executives are using their own money to buy shares, suggesting they believe the stock is undervalued. Insider sales, on the other hand, are more nuanced — they can reflect routine diversification plans (known as 10b5-1 plans), tax obligations, or genuine concerns about the company's outlook.
StoxPulse's AI system analyzes each CMCSA insider transaction to determine whether it appears routine or notable. We track the buy/sell ratio, total transaction values, and patterns over time to provide a clear picture of insider sentiment for Comcast Corporation.
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Disclaimer: Insider trading data for Comcast Corporation (CMCSA) is sourced from SEC Form 4 filings and is provided for informational purposes only. Insider transactions should not be the sole basis for investment decisions. Always consult a qualified financial advisor.
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