CMCSA — COMCAST CORP
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Dividends
Measured signals that fired on CMCSA
| date | signal | measured base rate |
|---|---|---|
| 2026-08-14 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-28 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-24 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-29 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-04 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-04-27 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-17 | BREEN EDWARD D Director | Gift | 62.4K | 0.00 | 0 |
| 2026-08-05 | ROBERTS BRIAN L Chairman of Board & Co-CEO | Gift | 204.1K | 0.00 | 0 |
| 2026-06-30 | Honickman Jeffrey A Director | Grant or award | 1.8K | 0.00 | 0 |
| 2026-06-30 | Brady Louise F. Director | Grant or award | 1.4K | 0.00 | 0 |
| 2026-06-30 | BREEN EDWARD D Director | Grant or award | 815 | 0.00 | 0 |
| 2026-06-30 | Smith Gordon Director | Grant or award | 1.4K | 0.00 | 0 |
| 2026-06-30 | Baltimore Thomas J Jr Director | Grant or award | 1.4K | 0.00 | 0 |
| 2026-05-19 | ROBERTS BRIAN L Chairman of Board & Co-CEO | Gift | 202.5K | 0.00 | 0 |
| 2026-05-11 | BREEN EDWARD D Director | Gift | 32.4K | 0.00 | 0 |
| 2026-04-03 | Murdock Daniel C. EVP & Chief Accounting Officer | Shares withheld for tax | 2.1K | 27.93 | 57.9K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 9.0B | 315.0M |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.7B | 233.2M |
| STATE STREET CORP | 5.2B | 182.7M |
| Capital World Investors | 5.2B | 182.1M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.5B | 121.6M |
| Dodge & Cox | 3.2B | 113.1M |
| Capital Research Global Investors | 2.6B | 89.6M |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5B | 88.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.2B | 76.7M |
| JPMORGAN CHASE & CO | 1.8B | 63.2M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-18 | 2026-08-17 | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-08-12 | — | on EDGAR ↗ |
| EFFECT | 2026-08-07 | — | on EDGAR ↗ |
| 424B3 | 2026-08-07 | — | on EDGAR ↗ |
| 4 | 2026-08-06 | 2026-08-05 | on EDGAR ↗ |
| S-4 | 2026-07-30 | — | on EDGAR ↗ |
| 10-Q | 2026-07-23 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-07-23 | 2026-07-23 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Others in Communications
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