Insider Trading for CMCSA
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired4.6M
Past 100 transactions
Shares Disposed5.3M
Past 100 transactions
Net Position-667.9K
Overall insider sentiment: bearish
Recent Activity (30 Days)
Acquisitions: 0 shares
Dispositions: 518.0K shares
Net: -518.0K shares
Insiders have been net sellers recently, which could indicate concerns about current valuation or short-term outlook.
Quarterly Activity (3 Months)
Acquisitions: 2.3M shares
Dispositions: 2.8M shares
Net: -516.0K shares
Insiders have been net sellers over the quarter, which institutional investors may view as a cautionary signal.
Key Insider Activity: Dec 31, 2024 to Sep 2, 2025
ROBERTS BRIAN L
ExecutiveChief Executive Officer
-906.9K shares
10 transactions
Cavanagh Michael J
ExecutivePresident
+174.2K shares
18 transactions
Reid Thomas J.
ExecutiveCorporate Officer
+26.1K shares
11 transactions
Murdock Daniel C.
ExecutiveVice President
+59.7K shares
20 transactions
Armstrong Jason
ExecutiveChief Financial Officer
-10.6K shares
12 transactions
Transaction Details
Show Less| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 2, 2025 | ROBERTS BRIAN L | EChief Executive Officer | I-Discretionary | 474.1K | $0.00 | $0.00 | 294.6K | View |
| Aug 20, 2025 | BREEN EDWARD D | DDirector | Gift | 43.9K | $0.00 | $0.00 | 15.4K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 809.8K | $42.52 | $34,431,633.00 | 809.8K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 524.1K | $54.45 | $28,536,156.00 | 524.1K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 480.4K | $40.47 | $19,441,788.00 | 480.4K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 430.4K | $46.39 | $19,967,276.58 | 430.4K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 430.4K | $46.39 | $19,967,276.58 | 286.9K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 809.8K | $42.52 | $34,431,633.00 | 269.9K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 524.1K | $54.45 | $28,536,156.00 | 131.0K | View |
| Aug 5, 2025 | Cavanagh Michael J | EPresident | Gift | 480.4K | $40.47 | $19,441,788.00 | 120.1K | View |
| Jun 30, 2025 | NOVAK DAVID C | DDirector | Award/Grant | 946 | $0.00 | $0.00 | 379.3K | View |
| Jun 30, 2025 | Honickman Jeffrey A | DDirector | Award/Grant | 1.2K | $0.00 | $0.00 | 235.0K | View |
| Jun 30, 2025 | BREEN EDWARD D | DDirector | Award/Grant | 561 | $0.00 | $0.00 | 59.3K | View |
| Jun 30, 2025 | Brady Louise F. | DDirector | Award/Grant | 946 | $0.00 | $0.00 | 18.3K | View |
| Jun 30, 2025 | Baltimore Thomas J Jr | DDirector | Award/Grant | 946 | $0.00 | $0.00 | 24.3K | View |
| Jun 19, 2025 | Murdock Daniel C. | EVice President | Exercise | 6.8K | $0.00 | $0.00 | 50.6K | View |
| Jun 19, 2025 | Murdock Daniel C. | EVice President | Payment In Kind | 2.7K | $34.26 | $92,022.36 | 47.9K | View |
| Jun 19, 2025 | Murdock Daniel C. | EVice President | Exercise | 6.8K | $0.00 | $0.00 | 41.9K | View |
| Jun 5, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 9.5K | $0.00 | $0.00 | 43.1K | View |
| Jun 5, 2025 | Armstrong Jason | EChief Financial Officer | Payment In Kind | 4.0K | $34.22 | $137,975.04 | 39.1K | View |
| Jun 5, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 9.5K | $0.00 | $0.00 | 29.6K | View |
| May 22, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 15.5K | $0.00 | $0.00 | 63.6K | View |
| May 22, 2025 | Khoury Jennifer | ECorporate Officer | Payment In Kind | 7.2K | $34.59 | $247,733.58 | 56.4K | View |
| May 22, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 15.5K | $0.00 | $0.00 | 9.2K | View |
| May 14, 2025 | BREEN EDWARD D | DDirector | Gift | 43.9K | $0.00 | $0.00 | 58.7K | View |
| May 6, 2025 | Cavanagh Michael J | EPresident | Gift | 171.0K | $0.00 | $0.00 | 171.0K | View |
| May 6, 2025 | Cavanagh Michael J | EPresident | Gift | 171.0K | $0.00 | $0.00 | 38.6K | View |
| Apr 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 3.9K | $0.00 | $0.00 | 48.7K | View |
| Apr 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 3.9K | $0.00 | $0.00 | 44.7K | View |
| Apr 1, 2025 | Murdock Daniel C. | EVice President | Payment In Kind | 1.5K | $36.72 | $55,740.96 | 43.1K | View |
| Mar 31, 2025 | NOVAK DAVID C | DDirector | Award/Grant | 915 | $0.00 | $0.00 | 377.7K | View |
| Mar 31, 2025 | Honickman Jeffrey A | DDirector | Award/Grant | 1.2K | $0.00 | $0.00 | 230.9K | View |
| Mar 31, 2025 | BREEN EDWARD D | DDirector | Award/Grant | 543 | $0.00 | $0.00 | 14.9K | View |
| Mar 31, 2025 | Brady Louise F. | DDirector | Award/Grant | 915 | $0.00 | $0.00 | 17.2K | View |
| Mar 31, 2025 | Baltimore Thomas J Jr | DDirector | Award/Grant | 915 | $0.00 | $0.00 | 23.1K | View |
| Mar 17, 2025 | BREEN EDWARD D | DDirector | Gift | 55.3K | $0.00 | $0.00 | 14.3K | View |
| Mar 7, 2025 | BREEN EDWARD D | DDirector | Gift | 43.1K | $0.00 | $0.00 | 69.6K | View |
| Mar 6, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Exercise | 907.6K | $29.73 | $26,978,410.00 | 7.3M | View |
| Mar 6, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Payment In Kind | 818.5K | $35.76 | $29,264,680.89 | 6.5M | View |
| Mar 6, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Exercise | 907.6K | $29.73 | $26,978,410.00 | 0 | View |
| Mar 3, 2025 | Murdock Daniel C. | EVice President | Award/Grant | 25.0K | $0.00 | $0.00 | 52.6K | View |
| Mar 3, 2025 | Murdock Daniel C. | EVice President | Award/Grant | 41.6K | $35.98 | $1,497,127.80 | 41.6K | View |
| Mar 2, 2025 | Reid Thomas J. | ECorporate Officer | Exercise | 21.2K | $0.00 | $0.00 | 134.4K | View |
| Mar 2, 2025 | Reid Thomas J. | ECorporate Officer | Payment In Kind | 11.7K | $35.88 | $419,867.76 | 122.7K | View |
| Mar 2, 2025 | Reid Thomas J. | ECorporate Officer | Exercise | 21.2K | $0.00 | $0.00 | 42.9K | View |
| Mar 2, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 5.2K | $0.00 | $0.00 | 49.7K | View |
| Mar 2, 2025 | Khoury Jennifer | ECorporate Officer | Payment In Kind | 1.6K | $35.88 | $57,838.56 | 48.1K | View |
| Mar 2, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 5.2K | $0.00 | $0.00 | 24.7K | View |
| Mar 2, 2025 | Murdock Daniel C. | EVice President | Exercise | 4.2K | $0.00 | $0.00 | 41.8K | View |
| Mar 2, 2025 | Murdock Daniel C. | EVice President | Payment In Kind | 1.0K | $35.88 | $37,064.04 | 40.8K | View |
| Mar 2, 2025 | Murdock Daniel C. | EVice President | Exercise | 4.2K | $0.00 | $0.00 | 27.5K | View |
| Mar 2, 2025 | Cavanagh Michael J | EPresident | Exercise | 82.9K | $0.00 | $0.00 | 280.7K | View |
| Mar 2, 2025 | Cavanagh Michael J | EPresident | Exercise | 82.9K | $0.00 | $0.00 | 250.1K | View |
| Mar 2, 2025 | Cavanagh Michael J | EPresident | Payment In Kind | 40.4K | $35.88 | $1,450,449.00 | 209.6K | View |
| Mar 2, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Exercise | 6.4K | $0.00 | $0.00 | 6.4M | View |
| Mar 2, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Payment In Kind | 6.4K | $35.88 | $230,062.56 | 6.4M | View |
| Mar 2, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Exercise | 6.4K | $0.00 | $0.00 | 14.0K | View |
| Mar 1, 2025 | Reid Thomas J. | ECorporate Officer | Exercise | 92.5K | $0.00 | $0.00 | 162.3K | View |
| Mar 1, 2025 | Reid Thomas J. | ECorporate Officer | Payment In Kind | 49.1K | $35.88 | $1,760,165.16 | 113.2K | View |
| Mar 1, 2025 | Reid Thomas J. | ECorporate Officer | Exercise | 92.5K | $0.00 | $0.00 | 0 | View |
| Mar 1, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 1.5K | $0.00 | $0.00 | 45.8K | View |
| Mar 1, 2025 | Khoury Jennifer | ECorporate Officer | Payment In Kind | 474 | $35.88 | $17,007.12 | 45.4K | View |
| Mar 1, 2025 | Khoury Jennifer | ECorporate Officer | Payment In Kind | 809 | $35.88 | $29,026.92 | 44.6K | View |
| Mar 1, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 2.6K | $0.00 | $0.00 | 44.3K | View |
| Mar 1, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 1.5K | $0.00 | $0.00 | 32.4K | View |
| Mar 1, 2025 | Khoury Jennifer | ECorporate Officer | Exercise | 2.6K | $0.00 | $0.00 | 29.9K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 1.4K | $0.00 | $0.00 | 39.3K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Payment In Kind | 410 | $35.88 | $14,710.80 | 38.9K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Payment In Kind | 523 | $35.88 | $18,765.24 | 38.3K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 2.2K | $0.00 | $0.00 | 37.9K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Payment In Kind | 732 | $35.88 | $26,264.16 | 37.6K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 1.4K | $0.00 | $0.00 | 36.9K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 3.0K | $0.00 | $0.00 | 35.7K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 2.2K | $0.00 | $0.00 | 34.8K | View |
| Mar 1, 2025 | Murdock Daniel C. | EVice President | Exercise | 3.0K | $0.00 | $0.00 | 31.8K | View |
| Mar 1, 2025 | Cavanagh Michael J | EPresident | Exercise | 31.4K | $0.00 | $0.00 | 363.6K | View |
| Mar 1, 2025 | Cavanagh Michael J | EPresident | Exercise | 31.4K | $0.00 | $0.00 | 198.6K | View |
| Mar 1, 2025 | Cavanagh Michael J | EPresident | Payment In Kind | 31.4K | $35.88 | $1,126,919.04 | 167.2K | View |
| Mar 1, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 2.1K | $0.00 | $0.00 | 43.4K | View |
| Mar 1, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 4.3K | $0.00 | $0.00 | 39.1K | View |
| Mar 1, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 2.1K | $0.00 | $0.00 | 35.9K | View |
| Mar 1, 2025 | Armstrong Jason | EChief Financial Officer | Payment In Kind | 958 | $35.88 | $34,373.04 | 34.9K | View |
| Mar 1, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 4.3K | $0.00 | $0.00 | 33.8K | View |
| Mar 1, 2025 | Armstrong Jason | EChief Financial Officer | Payment In Kind | 2.0K | $35.88 | $71,544.72 | 32.9K | View |
| Mar 1, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Exercise | 36.2K | $0.00 | $0.00 | 6.5M | View |
| Mar 1, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Exercise | 36.2K | $0.00 | $0.00 | 768.7K | View |
| Feb 25, 2025 | Reid Thomas J. | ECorporate Officer | Award/Grant | 92.5K | $0.00 | $0.00 | 92.5K | View |
| Feb 25, 2025 | Cavanagh Michael J | EPresident | Award/Grant | 292.2K | $0.00 | $0.00 | 395.0K | View |
| Feb 25, 2025 | ROBERTS BRIAN L | EChief Executive Officer | Award/Grant | 392.1K | $0.00 | $0.00 | 804.9K | View |
| Jan 14, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 7.7K | $0.00 | $0.00 | 45.5K | View |
| Jan 14, 2025 | Armstrong Jason | EChief Financial Officer | Exercise | 7.7K | $0.00 | $0.00 | 33.1K | View |
| Jan 14, 2025 | Armstrong Jason | EChief Financial Officer | Payment In Kind | 3.6K | $36.38 | $130,240.40 | 29.5K | View |
| Jan 2, 2025 | Reid Thomas J. | ECorporate Officer | Exercise | 11.7K | $0.00 | $0.00 | 73.8K | View |
| Jan 2, 2025 | Reid Thomas J. | ECorporate Officer | Payment In Kind | 3.9K | $37.42 | $147,547.06 | 69.8K | View |
| Jan 2, 2025 | Reid Thomas J. | ECorporate Officer | Exercise | 11.7K | $0.00 | $0.00 | 64.1K | View |
| Jan 2, 2025 | Reid Thomas J. | ECorporate Officer | I-Discretionary | 1.7K | $0.00 | $0.00 | 1.7K | View |
| Jan 2, 2025 | Cavanagh Michael J | EPresident | I-Discretionary | 46.2K | $0.00 | $0.00 | 388.5K | View |
| Dec 31, 2024 | NOVAK DAVID C | DDirector | Award/Grant | 900 | $0.00 | $0.00 | 375.7K | View |
| Dec 31, 2024 | NAKAHARA ASUKA | DDirector | Award/Grant | 900 | $0.00 | $0.00 | 51.3K | View |
| Dec 31, 2024 | Lucas Wonya Y | DDirector | Award/Grant | 900 | $0.00 | $0.00 | 12.0K | View |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net sellers of CMCSA stock, though this may be part of planned diversification.