Comcast Corporation (CMCSA) Insider Trading
Over the last 6 months, 1574 institutions increased and 1833 reduced their position (13F).
Insider Activity
Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Nov
Feb
Mar
Context3-month price -18%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 2, 2026 | Brady Louise F.director | Grant | 1,375 | — |
| Jul 2, 2026 | Smith Gordondirector | Grant | 1,375 | — |
| Jul 2, 2026 | BREEN EDWARD Ddirector | Grant | 815 | — |
| Jul 2, 2026 | Baltimore Thomas J Jrdirector | Grant | 1,375 | — |
| Jul 2, 2026 | Honickman Jeffrey Adirector | Grant | 1,783 | — |
| Apr 3, 2026 | Murdock Daniel C.officer: EVP & Chief Accounting Officer | Tax | 2,073 | $27.93 |
| Apr 3, 2026 | Murdock Daniel C.officer: EVP & Chief Accounting Officer | Option | 5,268 | — |
| Apr 2, 2026 | Smith Gordondirector | Grant | 1,176 | — |
| Apr 2, 2026 | Baltimore Thomas J Jrdirector | Grant | 1,176 | — |
| Apr 2, 2026 | Honickman Jeffrey Adirector | Grant | 1,524 | — |
| Apr 2, 2026 | Brady Louise F.director | Grant | 1,176 | — |
| Apr 2, 2026 | BREEN EDWARD Ddirector | Grant | 697 | — |
| Mar 6, 2026 | Armstrong Jasonofficer: CFO | Option | 73,497 | $28.38 |
| Mar 6, 2026 | Armstrong Jasonofficer: CFO | Sell | 4,494 | $31.73 |
| Mar 6, 2026 | Armstrong Jasonofficer: CFO | Tax | 69,003 | $31.75 |
| Feb 26, 2026 | Khoury Jenniferofficer: Chief Communications Officer | Grant | 27,946 | — |
| Feb 26, 2026 | Armstrong Jasonofficer: CFO | Grant | 93,142 | — |
| Feb 26, 2026 | ROBERTS BRIAN Ldirector, officer: Chairman of Board & Co-CEO | Grant | 428,438 | — |
| Feb 26, 2026 | Reid Thomas J.officer: Chief Legal Officer, Secretary | Grant | 93,142 | — |
| Feb 26, 2026 | Cavanagh Michael Jdirector, officer: Co-CEO | Grant | 325,987 | — |
| Feb 13, 2026 | Cavanagh Michael Jdirector, officer: Co-CEO | Sell | 57,947 | $32.66 |
| Feb 13, 2026 | Cavanagh Michael Jdirector, officer: Co-CEO | Option | 441,743 | $28.38 |
| Feb 13, 2026 | Cavanagh Michael Jdirector, officer: Co-CEO | Tax | 383,796 | $32.66 |
| Feb 13, 2026 | Cavanagh Michael Jdirector, officer: Co-CEO | Tax | 294,495 | $32.66 |
| Feb 13, 2026 | ROBERTS BRIAN Ldirector, officer: Chairman of Board & Co-CEO | Tax | 907,653 | $32.70 |
| Feb 13, 2026 | Cavanagh Michael Jdirector, officer: Co-CEO | Option | 294,495 | $28.38 |
| Feb 13, 2026 | ROBERTS BRIAN Ldirector, officer: Chairman of Board & Co-CEO | Option | 984,320 | $28.38 |
| Feb 5, 2026 | Smith Gordondirector | Grant | 7,869 | — |
| Feb 4, 2026 | NAKAHARA ASUKAdirector | Sell | 8,275 | $29.70 |
| Feb 3, 2026 | Murdock Daniel C.officer: EVP & Chief Accounting Officer | Grant | 57,452 | — |
Source: CMCSA SEC Form 4 filings, latest Jul 2, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CMCSA positions over the last 6 months (SEC Form 13F).
Increased
1574
New positions
434
Reduced
1833
Sold out
464
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD GROUP INC | Increased | 369.3M | Jan 29, 2026 |
| BLACKROCK, INC. | Reduced | 315.8M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 315.0M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 233.2M | May 15, 2026 |
| STATE STREET CORP | Increased | 186.8M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 182.7M | May 15, 2026 |
| CAPITAL WORLD INVESTORS | Increased | 182.1M | May 13, 2026 |
| CAPITAL WORLD INVESTORS | Increased | 140.3M | Feb 11, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 121.6M | May 15, 2026 |
| DODGE & COX | Increased | 113.1M | May 14, 2026 |
| DODGE & COX | Increased | 113.0M | Feb 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 89.9M | Feb 9, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Increased | 89.6M | May 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 88.1M | May 15, 2026 |
| NORGES BANK | New Position | 83.6M | Feb 10, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.