Jason Armstrong, CFO of Comcast Corp (CMCSA), made one open market sale of shares in the last year, totaling $142,617 with the most recent on March 5, 2026. This ranks 9,048th among 11,678 insiders by sale value, well below the average of $8.6 million across 6.37 transactions. No open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 5, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 69003 | $31.75 | 98,902.5830 | 3,595,000,000 | 41.10% | 0.00% |
| March 5, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 73497 | $28.38 | 172,399.5830 | 3,595,000,000 | 74.31% | 0.00% |
| March 5, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | S | Class A Common Stock | 4494 | $31.74 | 167,905.5830 | 3,595,000,000 | 2.61% | 0.00% |
| March 5, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Option to Purchase | 73497 | $28.38 | 0.0000 | 3,595,000,000 | 100.00% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 2099 | $30.96 | 144,650.5830 | 3,595,000,000 | 1.43% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 2688 | $30.96 | 141,962.5830 | 3,595,000,000 | 1.86% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 43060 | $30.96 | 98,902.5830 | 3,595,000,000 | 30.33% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 4540 | $0.00 | 18,504.0000 | 3,595,000,000 | 19.70% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 5813 | $0.00 | 12,691.0000 | 3,595,000,000 | 31.41% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 93142 | $0.00 | 0.0000 | 3,595,000,000 | 100.00% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 93142 | $0.00 | 136,396.5830 | 3,595,000,000 | 215.33% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 5813 | $0.00 | 142,209.5830 | 3,595,000,000 | 4.26% | 0.00% |
| March 1, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 4540 | $0.00 | 146,749.5830 | 3,595,000,000 | 3.19% | 0.00% |
| Feb. 24, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | A | Restricted Stock Units | 93142 | $0.00 | 93,142.0000 | 3,595,000,000 | 9999.99% | 0.00% |
| Jan. 20, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 8150 | $0.00 | 23,044.0000 | 3,595,000,000 | 26.13% | 0.00% |
| Jan. 20, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 3950 | $28.42 | 43,254.5830 | 3,595,000,000 | 8.37% | 0.00% |
| Jan. 20, 2026 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 8150 | $0.00 | 47,204.5830 | 3,595,000,000 | 20.87% | 0.00% |
| June 5, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 9504 | $0.00 | 43,086.5830 | 3,778,302,017 | 28.30% | 0.00% |
| June 5, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 9504 | $0.00 | 29,624.0000 | 3,778,302,017 | 24.29% | 0.00% |
| June 5, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 4032 | $34.22 | 39,054.5830 | 3,778,302,017 | 9.36% | 0.00% |
| March 1, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 958 | $35.88 | 34,908.4910 | 3,778,302,017 | 2.67% | 0.00% |
| March 1, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 2070 | $0.00 | 35,866.4910 | 3,778,302,017 | 6.12% | 0.00% |
| March 1, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 4312 | $0.00 | 33,796.4910 | 3,778,302,017 | 14.62% | 0.00% |
| March 1, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 1994 | $35.88 | 32,914.4910 | 3,778,302,017 | 5.71% | 0.00% |
| March 1, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 2070 | $0.00 | 43,440.0000 | 3,778,302,017 | 4.55% | 0.00% |
| March 1, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 4312 | $0.00 | 39,128.0000 | 3,778,302,017 | 9.93% | 0.00% |
| Jan. 14, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 7740 | $0.00 | 45,510.0000 | 3,778,302,017 | 14.54% | 0.00% |
| Jan. 14, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 7740 | $0.00 | 33,064.4910 | 3,778,302,017 | 30.56% | 0.00% |
| Jan. 14, 2025 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 3580 | $36.38 | 29,484.4910 | 3,778,302,017 | 10.83% | 0.00% |
| Nov. 6, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | S | Class A Common Stock | 10000 | $44.86 | 93,524.4910 | 3,969,317,931 | 9.66% | 0.00% |
| Nov. 6, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | S | Class A Common Stock | 13248 | $44.83 | 80,276.4910 | 3,969,317,931 | 14.17% | 0.00% |
| Nov. 6, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 54952 | $44.86 | 25,324.4910 | 3,969,317,931 | 68.45% | 0.00% |
| Nov. 6, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Option to Purchase | 68200 | $29.73 | 0.0000 | 3,969,317,931 | 100.00% | 0.00% |
| Nov. 6, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 68200 | $29.73 | 103,524.4910 | 3,969,317,931 | 193.07% | 0.00% |
| June 5, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 3564 | $0.00 | 53,250.0000 | 3,969,317,931 | 6.27% | 0.00% |
| June 5, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 1512 | $39.14 | 35,324.4910 | 3,969,317,931 | 4.10% | 0.00% |
| June 5, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 3564 | $0.00 | 36,836.4910 | 3,969,317,931 | 10.71% | 0.00% |
| March 15, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 6440 | $0.00 | 35,432.0160 | 3,969,317,931 | 22.21% | 0.00% |
| March 15, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 6440 | $0.00 | 56,814.0000 | 3,969,317,931 | 10.18% | 0.00% |
| March 15, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 2732 | $42.77 | 32,700.0160 | 3,969,317,931 | 7.71% | 0.00% |
| March 1, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 875 | $42.80 | 30,814.0160 | 3,969,317,931 | 2.76% | 0.00% |
| March 1, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | A | Option to Purchase | 223920 | $0.00 | 223,920.0000 | 3,969,317,931 | 9999.99% | 0.01% |
| March 1, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 2070 | $0.00 | 67,566.0000 | 3,969,317,931 | 2.97% | 0.00% |
| March 1, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 4312 | $0.00 | 63,254.0000 | 3,969,317,931 | 6.38% | 0.00% |
| March 1, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 4312 | $0.00 | 29,619.0160 | 3,969,317,931 | 17.04% | 0.00% |
| March 1, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 2070 | $0.00 | 31,689.0160 | 3,969,317,931 | 6.99% | 0.00% |
| March 1, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 1822 | $42.80 | 28,992.0160 | 3,969,317,931 | 5.91% | 0.00% |
| Feb. 15, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 5296 | $0.00 | 69,636.0000 | 3,969,317,931 | 7.07% | 0.00% |
| Feb. 15, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 2247 | $41.80 | 25,307.0160 | 3,969,317,931 | 8.15% | 0.00% |
| Feb. 15, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 5296 | $0.00 | 27,554.0160 | 3,969,317,931 | 23.79% | 0.00% |
| Jan. 14, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 3159 | $42.99 | 22,258.0160 | 3,969,317,931 | 12.43% | 0.00% |
| Jan. 14, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 7740 | $0.00 | 25,417.0160 | 3,969,317,931 | 43.79% | 0.00% |
| Jan. 14, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 7740 | $0.00 | 74,932.0000 | 3,969,317,931 | 9.36% | 0.00% |
| Jan. 4, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 5592 | $0.00 | 20,050.0160 | 3,969,317,931 | 38.68% | 0.00% |
| Jan. 4, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 2373 | $42.63 | 17,677.0160 | 3,969,317,931 | 11.84% | 0.00% |
| Jan. 4, 2024 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Restricted Stock Units | 5592 | $0.00 | 82,672.0000 | 3,969,317,931 | 6.34% | 0.00% |
| Nov. 20, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Option to Purchase | 27200 | $0.00 | 117,200.0000 | 4,211,000,000 | 18.84% | 0.00% |
| Nov. 20, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | M | Class A Common Stock | 27200 | $25.00 | 76,849.8280 | 4,211,000,000 | 54.78% | 0.00% |
| Nov. 20, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | S | Class A Common Stock | 6471 | $42.60 | 70,378.8280 | 4,211,000,000 | 8.42% | 0.00% |
| Nov. 20, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | F | Class A Common Stock | 20729 | $42.61 | 49,649.8280 | 4,211,000,000 | 29.45% | 0.00% |
| Nov. 20, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO | S | Class A Common Stock | 35192 | $42.63 | 14,458.0160 | 4,211,000,000 | 70.88% | 0.00% |
| June 5, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 1512 | $39.79 | 49,649.8280 | 4,211,000,000 | 2.96% | 0.00% |
| June 5, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 3564 | $0.00 | 51,161.8280 | 4,211,000,000 | 7.49% | 0.00% |
| June 5, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 3564 | $0.00 | 88,264.0000 | 4,211,000,000 | 3.88% | 0.00% |
| April 1, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 1997 | $37.91 | 46,895.0000 | 4,211,000,000 | 4.08% | 0.00% |
| April 1, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 4312 | $0.00 | 48,892.0000 | 4,211,000,000 | 9.67% | 0.00% |
| April 1, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 4312 | $0.00 | 91,828.0000 | 4,211,000,000 | 4.49% | 0.00% |
| March 16, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 5600 | $0.00 | 96,140.0000 | 4,211,000,000 | 5.50% | 0.00% |
| March 15, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 2415 | $0.00 | 101,740.0000 | 4,211,000,000 | 2.32% | 0.00% |
| March 16, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 2376 | $36.24 | 44,580.0000 | 4,211,000,000 | 5.06% | 0.00% |
| March 16, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 5600 | $0.00 | 46,956.0000 | 4,211,000,000 | 13.54% | 0.00% |
| March 15, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 1025 | $35.89 | 41,356.0000 | 4,211,000,000 | 2.42% | 0.00% |
| March 15, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 2415 | $0.00 | 42,381.0000 | 4,211,000,000 | 6.04% | 0.00% |
| March 1, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 2070 | $0.00 | 120,462.0000 | 4,211,000,000 | 1.69% | 0.00% |
| March 1, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | A | Option to Purchase | 240100 | $0.00 | 240,100.0000 | 4,211,000,000 | 9999.99% | 0.01% |
| March 2, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 6918 | $36.95 | 39,966.0000 | 4,211,000,000 | 14.76% | 0.00% |
| March 2, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 16307 | $0.00 | 46,884.0000 | 4,211,000,000 | 53.33% | 0.00% |
| March 1, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 879 | $36.63 | 30,577.0000 | 4,211,000,000 | 2.79% | 0.00% |
| March 2, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 16307 | $0.00 | 104,155.0000 | 4,211,000,000 | 13.54% | 0.00% |
| March 1, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 2070 | $0.00 | 31,456.0000 | 4,211,000,000 | 7.04% | 0.00% |
| Feb. 15, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 843 | $39.42 | 29,386.0000 | 4,211,000,000 | 2.79% | 0.00% |
| Feb. 14, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 3284 | $39.06 | 28,243.0000 | 4,211,000,000 | 10.42% | 0.00% |
| Feb. 14, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 7740 | $0.00 | 31,527.0000 | 4,211,000,000 | 32.54% | 0.00% |
| Feb. 15, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 1986 | $0.00 | 122,532.0000 | 4,211,000,000 | 1.59% | 0.00% |
| Feb. 14, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 7740 | $0.00 | 124,518.0000 | 4,211,000,000 | 5.85% | 0.00% |
| Feb. 15, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 1986 | $0.00 | 30,229.0000 | 4,211,000,000 | 7.03% | 0.00% |
| Jan. 4, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Restricted Stock Units | 2097 | $0.00 | 132,258.0000 | 4,211,000,000 | 1.56% | 0.00% |
| Jan. 4, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | F | Class A Common Stock | 971 | $36.59 | 23,787.0000 | 4,211,000,000 | 3.92% | 0.00% |
| Jan. 4, 2023 | COMCAST CORP | $CCZ | Armstrong Jason | CFO & Treasurer | M | Class A Common Stock | 2097 | $0.00 | 24,758.0000 | 4,211,000,000 | 9.25% | 0.00% |