Mario Gabelli's CMCSA Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 402,928 shares of Comcast Corporation (CMCSA) worth $12.04 M, representing 0.12% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Mario Gabelli has maintained a long-term strategic position in CMCSA, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2015, adding 1.87 M shares. Largest reduction occurred in Q2 2018, reducing 444,690 shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's Comcast Corporation (CMCSA) Holding Value Over Time
Track share changes against reported price movement
Quarterly Comcast Corporation (CMCSA) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -14,383 | Reduce 3.45% | 402,928 | $29.89 |
| Q3 2025 | -21,325 | Reduce 4.86% | 417,311 | $31.42 |
| Q2 2025 | -21,101 | Reduce 4.59% | 438,636 | $35.69 |
| Q1 2025 | -47,191 | Reduce 9.31% | 459,737 | $36.90 |
| Q4 2024 | -13,778 | Reduce 2.65% | 506,928 | $37.53 |
| Q3 2024 | +1,073 | Add 0.21% | 520,706 | $41.77 |
| Q2 2024 | -81,174 | Reduce 13.51% | 519,633 | $39.16 |
| Q1 2024 | -10,980 | Reduce 1.79% | 600,807 | $43.35 |
| Q4 2023 | -11,654 | Reduce 1.87% | 611,787 | $43.85 |
| Q3 2023 | -167,468 | Reduce 21.17% | 623,441 | $44.34 |
| Q2 2023 | -51,831 | Reduce 6.15% | 790,909 | $41.55 |
| Q1 2023 | -160,692 | Reduce 16.01% | 842,740 | $37.91 |
| Q4 2022 | -23,686 | Reduce 2.31% | 1 M | $34.97 |
| Q3 2022 | -55,302 | Reduce 5.11% | 1.03 M | $29.33 |
| Q2 2022 | +352 | Add 0.03% | 1.08 M | $39.24 |
| Q1 2022 | -11,221 | Reduce 1.03% | 1.08 M | $46.82 |
| Q4 2021 | -18,555 | Reduce 1.67% | 1.09 M | $50.33 |
| Q3 2021 | -53,180 | Reduce 4.56% | 1.11 M | $55.93 |
| Q2 2021 | +2,375 | Add 0.20% | 1.17 M | $57.02 |
| Q1 2021 | +53,679 | Add 4.84% | 1.16 M | $54.11 |
| Q4 2020 | -33,986 | Reduce 2.97% | 1.11 M | $52.40 |
| Q3 2020 | -59,337 | Reduce 4.94% | 1.14 M | $46.26 |
| Q2 2020 | -72,026 | Reduce 5.65% | 1.2 M | $38.98 |
| Q1 2020 | -137,383 | Reduce 9.73% | 1.27 M | $34.38 |
| Q4 2019 | +57,954 | Add 4.28% | 1.41 M | $44.97 |
| Q3 2019 | -21,570 | Reduce 1.57% | 1.35 M | $45.08 |
| Q2 2019 | +15,455 | Add 1.14% | 1.38 M | $42.28 |
| Q1 2019 | -37,167 | Reduce 2.66% | 1.36 M | $39.98 |
| Q4 2018 | -17,909 | Reduce 1.27% | 1.4 M | $34.05 |
| Q3 2018 | +51,852 | Add 3.80% | 1.41 M | $35.41 |
| Q2 2018 | -444,690 | Reduce 24.60% | 1.36 M | $32.81 |
| Q1 2018 | -2,103 | Reduce 0.12% | 1.81 M | $34.17 |
| Q4 2017 | -63,199 | Reduce 3.37% | 1.81 M | $40.05 |
| Q3 2017 | +8,414 | Add 0.45% | 1.87 M | $38.48 |
| Q2 2017 | +139,543 | Add 8.09% | 1.86 M | $38.92 |
| Q1 2017 | -10,334 | Reduce 0.60% | 1.73 M | $37.59 |
| Q4 2016 | -102,870 | Reduce 5.60% | 1.74 M | $34.53 |
| Q3 2016 | -229,436 | Reduce 11.10% | 1.84 M | $33.17 |
| Q2 2016 | -167,664 | Reduce 7.50% | 2.07 M | $32.60 |
| Q1 2016 | +133,930 | Add 6.37% | 2.24 M | $30.54 |
| Q4 2015 | +1.87 M | Add 812.59% | 2.1 M | $28.22 |
| Q3 2015 | -1,954 | Reduce 0.84% | 230,278 | $28.44 |
| Q2 2015 | -1,402 | Reduce 0.60% | 232,232 | $30.07 |
| Q1 2015 | -29,456 | Reduce 11.20% | 233,634 | $28.24 |
| Q4 2014 | -24,638 | Reduce 8.56% | 263,090 | $29.01 |
| Q3 2014 | -1,936 | Reduce 0.67% | 287,728 | $26.89 |
| Q2 2014 | +21,310 | Add 7.94% | 289,664 | $26.84 |
| Q1 2014 | -171,218 | Reduce 38.95% | 268,354 | $25.02 |
| Q4 2013 | -4,188 | Reduce 0.94% | 439,572 | $25.98 |
| Q3 2013 | -17,162 | Reduce 3.72% | 443,760 | $22.56 |
| Q2 2013 | +460,922 | Add 0.00% | 460,922 | $20.88 |
Mario Gabelli's Comcast Corporation Investment FAQs
Mario Gabelli first purchased Comcast Corporation (CMCSA) in Q2 2013, acquiring 460,922 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held Comcast Corporation (CMCSA) for 51 quarters since Q2 2013.
Mario Gabelli's largest addition to Comcast Corporation (CMCSA) was in Q4 2015, adding 2,101,496 shares worth $59.29 M.
According to the latest 13F filing for Q4 2025, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 402,928 shares of Comcast Corporation (CMCSA), valued at approximately $12.04 M.
As of the Q4 2025 filing, Comcast Corporation (CMCSA) represents approximately 0.12% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in Comcast Corporation (CMCSA) was 2,235,426 shares, as reported at the end of Q1 2016.