Quick Takeaways
- CMCSA - COMCAST CORP has 23 insiders with reported activity on this page.
- Net insider value flow over the last year: -$2,280,934.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Ownership
- Insider Trading
- Financials
- Holders: CMCSA, CCZ
Insider Transactions Reported by 23 Insiders of COMCAST CORP
- Symbol
- CMCSA on Nasdaq, CCZ on NYSE
- Location
- Philadelphia, PA
What Changed
- Buy value: ; sell value: $2,280,933.
- Net share flow: -70,716.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$2,280,934.
Buys
$0
Shares: 0
Insiders: 0
Sells
$2,280,934
Shares: 70,716
Insiders: 3
Net
-$2,280,934
Shares: -70,716
Insiders: -3
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 70,716 | $0 | $2,280,934 | -$2,280,934 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
COMCAST CORP executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Brian L. Roberts | Chairman of Board & Co-CEO, Director | $696,266,708 | Mixed | 01 Mar 2026 | ||
| David N. Watson | CEO - Comcast Cable | $49,748,186 | Mixed | 14 Apr 2022 | ||
| Michael J. Cavanagh | Co-CEO, Director | $32,800,274 | -$1,892,549 | -5.5% | Mixed | 01 Mar 2026 |
| Jeff Shell | CEO - NBCUniversal | $20,821,784 | Mixed | 20 Dec 2022 | ||
| Adam Louis Miller | Chief Administrative Officer | $12,528,568 | Mixed | 01 Mar 2022 | ||
| David C. Novak | Director | $11,458,778 | Mixed | 20 Nov 2025 | ||
| Jeffrey A. Honickman | Director | $8,450,889 | Mixed | 31 Mar 2026 | ||
| Dana Strong | CEO - Sky | $7,365,508 | Mixed | 11 Oct 2022 | ||
| Thomas J. Reid | Chief Legal Officer, Secretary | $7,127,419 | Mixed | 01 Mar 2026 | ||
| Daniel C. Murdock | EVP & Chief Accounting Officer | $4,783,736 | Mixed | 03 Apr 2026 | ||
| Jason Armstrong | Cfo | $4,506,487 | -$142,617 | -3.1% | Mixed | 05 Mar 2026 |
| Gerald L. Hassell | Director | $2,900,269 | Mixed | 31 Mar 2024 | ||
| Jennifer Khoury | Chief Communications Officer | $2,783,568 | Mixed | 17 Mar 2026 | ||
| Asuka Nakahara | Director | $1,721,343 | -$245,768 | -12% | Filing P/S | 03 Feb 2026 |
| Madeline S. Bell | Director | $1,711,493 | Mixed | 20 Jan 2026 | ||
| Edward D. Breen | Director | $1,689,450 | Mixed | 31 Mar 2026 | ||
| Kenneth J. Bacon | Director | $1,222,322 | Mixed | 20 Nov 2025 | ||
| Thomas J. Baltimore Jr. | Director | $1,181,267 | Mixed | 31 Mar 2026 | ||
| Maritza Gomez Montiel | Director | $1,067,761 | Mixed | 31 Mar 2024 | ||
| Louise F. Brady | Director | $976,891 | Mixed | 31 Mar 2026 | ||
| Naomi M. Bergman | Director | $888,944 | Mixed | 30 Jun 2022 | ||
| Wonya Y. Lucas | Director | $561,296 | Mixed | 20 Nov 2025 | ||
| Gordon Smith | Director | $270,355 | Mixed | 31 Mar 2026 |
Top shareholders of COMCAST CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
10%
|
369,311,219
|
$11,038,712,337 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
8.6%
|
315,783,631
|
$9,438,772,737 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
13D/G
|
Company · STATE STREET CORPORATION |
5.1%
from 13D/G
|
186,805,081
|
$5,583,603,871 | — | 31 Dec 2025 | |
| Capital World Investors |
13F
|
Company |
3.8%
|
140,343,399
|
$4,194,929,124 | — | 31 Dec 2025 | |
| DODGE & COX |
13F
|
Company |
3.1%
|
112,967,514
|
$3,376,598,993 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.5%
|
89,913,362
|
$2,680,747,373 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
2.3%
|
83,594,032
|
$2,498,625,616 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
1.8%
|
67,086,562
|
$2,005,217,325 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.7%
|
63,377,145
|
$1,894,342,918 | — | 31 Dec 2025 | |
| Capital Research Global Investors |
13F
|
Company |
1.5%
|
55,664,933
|
$1,663,824,962 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
1.2%
|
43,332,228
|
$1,295,200,306 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.1%
|
41,615,239
|
$1,243,879,569 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.1%
|
41,087,238
|
$1,228,097,554 | — | 31 Dec 2025 | |
| EAGLE CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.1%
|
39,910,299
|
$1,192,918,837 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.1%
|
38,916,854
|
$1,163,224,937 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
1%
|
38,160,898
|
$1,140,654,127 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1%
|
37,081,687
|
$1,108,371,620 | — | 31 Dec 2025 | |
| First Eagle Investment Management, LLC |
13F
|
Company |
0.99%
|
36,171,945
|
$1,081,179,447 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.98%
|
36,037,654
|
$1,077,165,478 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.79%
|
28,954,211
|
$865,461,348 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.77%
|
28,217,107
|
$843,409,329 | — | 31 Dec 2025 | |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.76%
|
27,768,597
|
$830,003,364 | — | 31 Dec 2025 | |
| HARRIS ASSOCIATES L P |
13F
|
Company |
0.75%
|
27,458,428
|
$820,732,405 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.75%
|
27,446,578
|
$820,378,224 | — | 31 Dec 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
0.67%
|
24,646,533
|
$736,684,829 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.66%
|
23,999,625
|
$717,348,792 | — | 31 Dec 2025 | |
| Brian L. Roberts |
3/4/5
|
Chairman of Board & Co-CEO, Director |
—
mixed-class rows
|
22,334,718
mixed-class rows
|
$696,266,708 | — | 01 Mar 2026 | |
| Nuveen, LLC |
13F
|
Company |
0.52%
|
19,164,944
|
$572,840,180 | — | 31 Dec 2025 | |
| Clearbridge Investments, LLC |
13F
|
Company |
0.5%
|
18,488,681
|
$552,374,562 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.43%
|
15,848,606
|
$473,714,833 | — | 31 Dec 2025 | |
| Pacer Advisors, Inc. |
13F
|
Company |
0.43%
|
15,677,870
|
$468,611,534 | — | 31 Dec 2025 | |
| Capital International Investors |
13F
|
Company |
0.42%
|
15,284,483
|
$456,872,337 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.42%
|
15,204,835
|
$454,493,409 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.39%
|
14,389,631
|
$430,106,072 | — | 31 Dec 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
0.39%
|
14,383,901
|
$429,934,801 | — | 31 Dec 2025 | |
| Amundi |
13F
|
Individual |
0.39%
|
14,175,517
|
$423,707,509 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.38%
|
14,000,498
|
$418,474,870 | — | 31 Dec 2025 | |
| LSV ASSET MANAGEMENT |
13F
|
Company |
0.38%
|
13,808,535
|
$412,737,000 | — | 31 Dec 2025 | |
| HSBC HOLDINGS PLC |
13F
|
Company |
0.38%
|
13,797,091
|
$404,414,034 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.37%
|
13,375,888
|
$399,805,290 | — | 31 Dec 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.36%
|
13,193,236
|
$394,346,000 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.35%
|
12,961,247
|
$387,411,670 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.35%
|
12,861,233
|
$384,424,000 | — | 31 Dec 2025 | |
| Allianz Asset Management GmbH |
13F
|
Company |
0.34%
|
12,538,285
|
$352,986,607 | — | 31 Dec 2025 | |
| CANADA PENSION PLAN INVESTMENT BOARD |
13F
|
Company |
0.32%
|
11,646,730
|
$348,120,760 | — | 31 Dec 2025 | |
| Rothschild & Co Wealth Management UK Ltd |
13F
|
Company |
0.31%
|
11,422,930
|
$341,431,378 | — | 31 Dec 2025 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.32%
|
11,729,109
|
$328,437,337 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.29%
|
10,712,220
|
$319,920,466 | — | 31 Dec 2025 | |
| Beutel, Goodman & Co Ltd. |
13F
|
Company |
0.29%
|
10,478,547
|
$313,203,000 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.28%
|
10,363,940
|
$309,778,164 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for COMCAST CORP
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Daniel C. Murdock | CMCSA | Class A Common Stock | Tax liability | -3.22% | -2,073 | 62,362 | 03 Apr 2026 | Direct | ||
| Daniel C. Murdock | CMCSA | Class A Common Stock | Options Exercise | 8.9% | 5,268 | 64,435 | 03 Apr 2026 | Direct | ||
| Daniel C. Murdock | CMCSA | Restricted Stock Units | Options Exercise | -9.84% | -5,268 | 48,290 | 03 Apr 2026 | Direct | ||
| Gordon Smith | CMCSA | Class A Common Stock | Award | 14.9% | 1,176 | 9,045 | 31 Mar 2026 | Direct | ||
| Jeffrey A. Honickman | CMCSA | Class A Common Stock | Award | 0.58% | 1,524 | 262,583 | 31 Mar 2026 | Direct | ||
| Edward D. Breen | CMCSA | Class A Common Stock | Award | 1.25% | 697 | 56,522 | 31 Mar 2026 | Direct | ||
| Louise F. Brady | CMCSA | Class A Common Stock | Award | 3.73% | 1,176 | 32,683 | 31 Mar 2026 | Direct | ||
| Thomas J. Baltimore Jr. | CMCSA | Class A Common Stock | Award | 3.11% | 1,176 | 39,043 | 31 Mar 2026 | Direct | ||
| Jennifer Khoury | CMCSA | Class A Common Stock | Tax liability | -14.8% | -10,514 | 60,538 | 17 Mar 2026 | Direct | ||
| Jennifer Khoury | CMCSA | Class A Common Stock | Options Exercise | 18.1% | 10,867 | 71,052 | 17 Mar 2026 | Direct | ||
| Jennifer Khoury | CMCSA | Option to Purchase | Options Exercise | -100% | -10,867 | 0 | 17 Mar 2026 | Direct | ||
| Edward D. Breen | CMCSA | Class A Common Stock | Gift | 116.2% | 30,000 | 55,825 | 17 Mar 2026 | Direct | ||
| Jason Armstrong | CMCSA | Class A Common Stock | Tax liability | -41.1% | -69,003 | 98,903 | 05 Mar 2026 | Direct | ||
| Jason Armstrong | CMCSA | Class A Common Stock | Sale | -2.61% | $142,617 | $31.74 | -4,494 | 167,906 | 05 Mar 2026 | Direct |
| Jason Armstrong | CMCSA | Class A Common Stock | Options Exercise | 74.3% | 73,497 | 172,400 | 05 Mar 2026 | Direct | ||
| Jason Armstrong | CMCSA | Option to Purchase | Options Exercise | -100% | -73,497 | 0 | 05 Mar 2026 | Direct | ||
| Brian L. Roberts | CMCSA | Class A Common Stock | Tax liability | -0.77% | -45,578 | 5,893,393 | 01 Mar 2026 | Direct | ||
| Brian L. Roberts | CMCSA | Class A Common Stock | Options Exercise | 0.77% | 45,578 | 5,938,971 | 01 Mar 2026 | Direct | ||
| Brian L. Roberts | CMCSA | Restricted Stock Units | Options Exercise | -10.6% | -45,578 | 382,860 | 01 Mar 2026 | Direct | ||
| Michael J. Cavanagh | CMCSA | Class A Common Stock | Tax liability | -47.5% | -34,980 | 38,633 | 01 Mar 2026 | Direct | ||
| Michael J. Cavanagh | CMCSA | Class A Common Stock | Options Exercise | 90.5% | 34,980 | 73,613 | 01 Mar 2026 | Direct | ||
| Michael J. Cavanagh | CMCSA | Restricted Stock Units | Options Exercise | -10.7% | -34,980 | 291,007 | 01 Mar 2026 | Direct | ||
| Jennifer Khoury | CMCSA | Class A Common Stock | Tax liability | -9.2% | -6,100 | 60,185 | 01 Mar 2026 | Direct | ||
| Jennifer Khoury | CMCSA | Class A Common Stock | Options Exercise | 17.5% | 9,851 | 66,285 | 01 Mar 2026 | Direct | ||
| Jennifer Khoury | CMCSA | Restricted Stock Units | Options Exercise | -78.3% | -9,851 | 2,724 | 01 Mar 2026 | Direct | ||
| Jason Armstrong | CMCSA | Class A Common Stock | Tax liability | -32.6% | -47,847 | 98,903 | 01 Mar 2026 | Direct | ||
| Jason Armstrong | CMCSA | Class A Common Stock | Options Exercise | 239.3% | 103,495 | 146,750 | 01 Mar 2026 | Direct | ||
| Jason Armstrong | CMCSA | Restricted Stock Units | Options Exercise | -100% | -103,495 | 0 | 01 Mar 2026 | Direct | ||
| Daniel C. Murdock | CMCSA | Class A Common Stock | Tax liability | -5.25% | -3,280 | 59,167 | 01 Mar 2026 | Direct | ||
| Daniel C. Murdock | CMCSA | Class A Common Stock | Options Exercise | 27.2% | 13,368 | 62,447 | 01 Mar 2026 | Direct | ||
| Daniel C. Murdock | CMCSA | Restricted Stock Units | Options Exercise | -20% | -13,368 | 53,558 | 01 Mar 2026 | Direct | ||
| Thomas J. Reid | CMCSA | Class A Common Stock | Tax liability | -21.8% | -48,665 | 174,809 | 01 Mar 2026 | Direct | ||
| Thomas J. Reid | CMCSA | Class A Common Stock | Options Exercise | 71.5% | 93,142 | 223,474 | 01 Mar 2026 | Direct | ||
| Thomas J. Reid | CMCSA | Restricted Stock Units | Options Exercise | -100% | -93,142 | 0 | 01 Mar 2026 | Direct | ||
| Jennifer Khoury | CMCSA | Restricted Stock Units | Award | 27,946 | 27,946 | 24 Feb 2026 | Direct | |||
| Thomas J. Reid | CMCSA | Restricted Stock Units | Award | 93,142 | 93,142 | 24 Feb 2026 | Direct | |||
| Jason Armstrong | CMCSA | Restricted Stock Units | Award | 93,142 | 93,142 | 24 Feb 2026 | Direct | |||
| Michael J. Cavanagh | CMCSA | Restricted Stock Units | Award | 325,987 | 325,987 | 24 Feb 2026 | Direct | |||
| Brian L. Roberts | CMCSA | Restricted Stock Units | Award | 428,438 | 428,438 | 24 Feb 2026 | Direct | |||
| Brian L. Roberts | CMCSA | Class A Common Stock | Tax liability | -13.4% | -907,653 | 5,893,393 | 11 Feb 2026 | Direct | ||
| Brian L. Roberts | CMCSA | Class A Common Stock | Options Exercise | 16.9% | 984,320 | 6,801,046 | 11 Feb 2026 | Direct | ||
| Brian L. Roberts | CMCSA | Option to Purchase | Options Exercise | -100% | -984,320 | 0 | 11 Feb 2026 | Direct | ||
| Michael J. Cavanagh | CMCSA | Class A Common Stock | Tax liability | -61.7% | -383,796 | 238,540 | 11 Feb 2026 | By Trust | ||
| Michael J. Cavanagh | CMCSA | Class A Common Stock | Sale | -8.52% | $1,892,549 | $32.66 | -57,947 | 622,336 | 11 Feb 2026 | By Trust |
| Michael J. Cavanagh | CMCSA | Class A Common Stock | Options Exercise | 185.2% | 441,743 | 680,283 | 11 Feb 2026 | By Trust | ||
| Michael J. Cavanagh | CMCSA | Class A Common Stock | Tax liability | -88.4% | -294,495 | 38,633 | 11 Feb 2026 | Direct | ||
| Michael J. Cavanagh | CMCSA | Class A Common Stock | Options Exercise | 762.3% | 294,495 | 333,128 | 11 Feb 2026 | Direct | ||
| Michael J. Cavanagh | CMCSA | Option to Purchase | Options Exercise | -100% | -441,743 | 0 | 11 Feb 2026 | By Trust | ||
| Michael J. Cavanagh | CMCSA | Option to Purchase | Options Exercise | -100% | -294,495 | 0 | 11 Feb 2026 | Direct | ||
| Gordon Smith | CMCSA | Class A Common Stock | Award | 7,869 | 7,869 | 04 Feb 2026 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.