First Pacific Advisors, LP — COMCAST CORP NEW CMCSA: Quarterly 13F Position History
First Pacific Advisors, LP has reported COMCAST CORP NEW (CMCSA) on 33 13F-HR filings in Pactolio's tracked window, first appearing in Q4 2017. As of Q1 2026, the position is sized at 8,592,563 shares ($246.7M market value, 3.46% of the equity book). Quarter-over-quarter share count change: + 192,732 (+2.3%) .
- 8,592,563Shares Held (Latest Filing)
- $246.7MReported Market Value (Latest Filing)
- 3.46%Portfolio Weight (% of 13F Equity Book)
- +192,732Quarter-over-Quarter Share Change
- -$4.4MQuarter-over-Quarter Value Change
- 12,496,285Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 33 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 8,592,563 | +192,732 | +2.3% | $246.7M | 3.46% | $28.71 |
| Q4 2025 | 8,399,831 | 2,838,897 | -25.3% | $251.1M | 3.31% | $29.89 |
| Q3 2025 | 11,238,728 | +147,169 | +1.3% | $353.1M | 4.88% | $31.42 |
| Q2 2025 | 11,091,559 | +134,919 | +1.2% | $395.9M | 5.66% | $35.69 |
| Q1 2025 | 10,956,640 | +88,177 | +0.8% | $404.3M | 6.48% | $36.90 |
| Q4 2024 | 10,868,463 | +62,829 | +0.6% | $407.9M | 5.83% | $37.53 |
| Q3 2024 | 10,805,634 | 12,375 | -0.1% | $451.4M | 6.27% | $41.77 |
| Q2 2024 | 10,818,009 | +219,894 | +2.1% | $423.6M | 5.73% | $39.16 |
| Q1 2024 | 10,598,115 | +36,874 | +0.3% | $459.4M | 6.44% | $43.35 |
| Q4 2023 | 10,561,241 | +143,373 | +1.4% | $463.1M | 6.94% | $43.85 |
| Q3 2023 | 10,417,868 | 176,487 | -1.7% | $461.9M | 7.24% | $44.34 |
| Q2 2023 | 10,594,355 | 377,781 | -3.4% | $440.2M | 6.43% | $41.55 |
| Q1 2023 | 10,972,136 | 246,203 | -2.2% | $416.0M | 6.46% | $37.91 |
| Q4 2022 | 11,218,339 | 139,948 | -1.2% | $392.3M | 6.01% | $34.97 |
| Q3 2022 | 11,358,287 | +87,523 | +0.8% | $333.1M | 5.29% | $29.33 |
| Q2 2022 | 11,270,764 | +272,776 | +2.5% | $442.3M | 6.55% | $39.24 |
| Q1 2022 | 10,997,988 | +329,984 | +3.1% | $514.9M | 6.63% | $46.82 |
| Q4 2021 | 10,668,004 | +1,475,742 | +16.1% | $536.9M | 6.66% | $50.33 |
| Q3 2021 | 9,192,262 | 241,366 | -2.6% | $514.1M | 6.67% | $55.93 |
| Q2 2021 | 9,433,628 | 75,835 | -0.8% | $537.9M | 6.75% | $57.02 |
| Q1 2021 | 9,509,463 | 359,707 | -3.6% | $514.6M | 6.99% | $54.11 |
| Q4 2020 | 9,869,170 | 712,820 | -6.7% | $517.1M | 6.66% | $52.40 |
| Q3 2020 | 10,581,990 | 1,200,336 | -10.2% | $489.5M | 7.00% | $46.26 |
| Q2 2020 | 11,782,326 | 585,166 | -4.7% | $459.3M | 6.37% | $38.98 |
| Q1 2020 | 12,367,492 | +1,960,434 | +18.8% | $425.2M | 6.15% | $34.38 |
| Q4 2019 | 10,407,058 | 96,971 | -0.9% | $468.0M | 4.56% | $44.97 |
| Q3 2019 | 10,504,029 | 1,075,043 | -9.3% | $473.5M | 4.56% | $45.08 |
| Q2 2019 | 11,579,072 | 917,213 | -7.3% | $489.6M | 4.29% | $42.28 |
| Q4 2018 | 12,496,285 | +296,521 | +2.4% | $425.5M | 4.06% | $34.05 |
| Q3 2018 | 12,199,764 | +590,059 | +5.1% | $432.0M | 3.13% | $35.41 |
| Q2 2018 | 11,609,705 | +11,575,705 | +34046.2% | $380.9M | 2.74% | $32.81 |
| Q1 2018 | 34,000 | 11,000 | -24.4% | $1.2M | 0.01% | $34.18 |
| Q4 2017 | 45,000 | — | — | $1.8M | 0.01% | $40.04 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did First Pacific Advisors, LP first disclose a CMCSA position in 13F-HR filings?
First Pacific Advisors, LP first reported COMCAST CORP NEW (CMCSA) on its 13F-HR filing for the period ending 2017-12-31 (Q4 2017). The position has appeared on 33 reported quarters within Pactolio's tracked window.
What was First Pacific Advisors, LP's most recent quarter-over-quarter share-count change in CMCSA?
Between Q4 2025 and Q1 2026, First Pacific Advisors, LP added 192,732 shares of CMCSA (+2.3%), bringing the total reported position to 8,592,563 shares at a market value of $246.7M.
Does the implied price-per-share represent First Pacific Advisors, LP's cost basis in CMCSA?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.