Security record · archived quarter
CMCSA
Comcast Corporation · Communication Services · Telecommunications Services
28Tracked holders
+1Δ holders
1.49BShares held
$53.29BReported value
+1New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +3.7% ·
share flow -0.7% ·
net new positions +3.6%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 180 | -1 | 2.54B | $62.47B | +5 | −6 |
| Q1 2026 | 184 | +1 | 2.60B | $74.53B | +3 | −3 |
| Q4 2025 | 182 | +1 | 2.70B | $80.48B | +3 | −1 |
| Q3 2025 | 29 | -1 | 1.64B | $51.58B | — | −2 |
| Q2 2025 | 28 | +1 | 1.49B | $53.29B | +1 | — |
| Q1 2025 | 24 | 0 | 726.44M | $26.79B | +1 | −1 |
| Q4 2024 | 24 | -1 | 717.85M | $26.93B | — | −1 |
| Q3 2024 | 24 | +3 | 516.43M | $21.56B | +3 | — |
| Q2 2024 | 21 | — | 475.29M | $18.60B | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 369.44M | — | $13.19B | 0.2% | n/c | 1 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 369.44M | — | $13.19B | 0.2% | n/c | 1 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 369.44M | — | $13.19B | 0.2% | n/c | 1 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 369.44M | — | $13.19B | 0.2% | n/c | 1 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 369.44M | — | $13.19B | 0.2% | n/c | 1 | SEC ↗ |
| 6 | The Vanguard Group ✦ (passive) | 369.44M | — | $13.19B | 0.2% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 25 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 26 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 27 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 28 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 29 | BlackRock ✦ (passive) | 302.04M | — | $10.78B | 0.2% | n/c | 1 | SEC ↗ |
| 30 | State Street Global Advisors ✦ (passive) | 172.77M | +2.5% | $6.17B | 0.2% | ▲ Add | 3 | SEC ↗ |
| 31 | Capital World Investors ✦ | 128.81M | -12.9% | $4.60B | 0.7% | ▼ Trim | 5 | SEC ↗ |
| 32 | Dodge & Cox ✦ | 111.27M | +18.1% | $3.97B | 2.2% | ▲ Add | 5 | SEC ↗ |
| 33 | Fidelity (FMR) ✦ | 105.68M | — | $3.77B | 0.2% | n/c | 1 | SEC ↗ |
| 34 | Fidelity (FMR) ✦ | 105.68M | — | $3.77B | 0.2% | n/c | 1 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 105.68M | — | $3.77B | 0.2% | n/c | 1 | SEC ↗ |
| 36 | Fidelity (FMR) ✦ | 105.68M | — | $3.77B | 0.2% | n/c | 1 | SEC ↗ |
| 37 | Fidelity (FMR) ✦ | 105.68M | — | $3.77B | 0.2% | n/c | 1 | SEC ↗ |
| 38 | Fidelity (FMR) ✦ | 105.68M | — | $3.77B | 0.2% | n/c | 1 | SEC ↗ |
| 39 | Norges Bank ✦ (passive) | 98.86M | -10.1% | $3.53B | 0.4% | ▼ Trim | 5 | SEC ↗ |
| 40 | Geode Capital Management ✦ (passive) | 86.97M | -0.3% | $3.09B | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 41 | Geode Capital Management ✦ (passive) | 86.97M | -0.3% | $3.09B | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 42 | T. Rowe Price ✦ | 35.33M | +12.5% | $1.26B | 0.1% | ▲ Add | 5 | SEC ↗ |
| 43 | T. Rowe Price ✦ | 35.33M | +12.5% | $1.26B | 0.1% | ▲ Add | 5 | SEC ↗ |
| 44 | Arrowstreet Capital ✦ | 24.35M | -3.0% | $869.07M | 0.6% | ▼ Trim | 5 | SEC ↗ |
| 45 | Harris Associates (Oakmark) ✦ | 21.40M | +3.9% | $763.85M | 1.2% | ▲ Add | 5 | SEC ↗ |
| 46 | Harris Associates (Oakmark) ✦ | 21.40M | +3.9% | $763.85M | 1.2% | ▲ Add | 5 | SEC ↗ |
| 47 | Bridgewater Associates ✦ | 8.71M | +71.2% | $310.79M | 1.3% | ▲ Add | 5 | SEC ↗ |
| 48 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 49 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 50 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 51 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 52 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 53 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 54 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 7.35M | -50.1% | $260.50M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 56 | Millennium Management ✦ | 5.51M | +182.3% | $196.55M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 57 | Point72 Asset Management ✦ | 4.19M | +3.6% | $149.48M | 0.4% | ▲ Add | 5 | SEC ↗ |
| 58 | Adage Capital Partners ✦ | 2.96M | -8.6% | $105.68M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 59 | Wellington Management ✦ | 2.33M | +43.0% | $83.13M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 60 | Wellington Management ✦ | 2.33M | +43.0% | $83.13M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 61 | Wellington Management ✦ | 2.33M | +43.0% | $83.13M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 62 | Markel Group ✦ | 961.88K | 0.0% | $34.33M | 0.3% | Held | 5 | SEC ↗ |
| 63 | Markel Group ✦ | 961.88K | 0.0% | $34.33M | 0.3% | Held | 5 | SEC ↗ |
| 64 | Renaissance Technologies ✦ | 911.45K | New | $32.53M | 0.0% | New | 1 | SEC ↗ |
| 65 | D. E. Shaw & Co. ✦ | 807.69K | +2.3% | $28.83M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 66 | D. E. Shaw & Co. ✦ | 807.69K | +2.3% | $28.83M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 67 | Gotham Asset Management ✦ | 790.17K | +58.8% | $28.20M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 68 | Marshall Wace ✦ | 462.51K | +154.6% | $16.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 69 | Marshall Wace ✦ | 462.51K | +154.6% | $16.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Two Sigma Investments ✦ | 450.23K | -90.8% | $16.07M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 71 | GAMCO Investors ✦ | 438.64K | -4.6% | $15.65M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 72 | Citadel Advisors ✦ | 438.56K | -83.3% | $15.65M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 73 | Citadel Advisors ✦ | 438.56K | -83.3% | $15.65M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 74 | PRIMECAP Management ✦ | 211.30K | -26.8% | $7.54M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 75 | Fisher Asset Management ✦ | 60.62K | -14.2% | $2.16M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 76 | Tweedy, Browne ✦ | 31.56K | -2.4% | $1.13M | 0.1% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Renaissance Technologies | $32.53M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 2,026 holders, 2.99B shares, $83.02B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Aug 12
SC 13G/A — Capital World Investors
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2025 ·
Methodology ·
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