Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CMCSA held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 315.0M | $9.04B | -0.3% | 8.644% | 0.16% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 233.2M | $6.69B | — | 6.399% | 0.17% |
| 3 | STATE STREET CORP | 182.7M | $5.25B | -2.2% | 5.015% | 0.18% |
| 4 | Capital World Investors | 182.1M | $5.23B | +29.8% | 4.998% | 0.71% |
| 5 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 121.6M | $3.49B | +212.3% | 3.336% | 0.53% |
| 6 | DODGE & COX | 113.1M | $3.25B | +0.1% | 3.104% | 1.78% |
| 7 | Capital Research Global Investors | 89.6M | $2.57B | +60.9% | 2.458% | 0.40% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 88.1M | $2.52B | -2.0% | 2.418% | 0.16% |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | 76.7M | $2.20B | — | 2.105% | 0.12% |
| 10 | FMR LLC | 60.6M | $1.74B | -9.7% | 1.663% | 0.09% |
| 11 | Invesco Ltd. | 44.5M | $1.28B | +2.7% | 1.221% | 0.20% |
| 12 | GOLDMAN SACHS GROUP INC | 43.3M | $1.24B | -7.4% | 1.190% | 0.14% |
| 13 | MORGAN STANLEY | 42.9M | $1.23B | +3.2% | 1.178% | 0.07% |
| 14 | AMERIPRISE FINANCIAL INC | 42.4M | $1.22B | +11.2% | 1.165% | 0.28% |
| 15 | BANK OF AMERICA CORP /DE/ | 40.9M | $1.17B | +10.2% | 1.121% | 0.09% |
| 16 | First Eagle Investment Management, LLC | 37.8M | $1.08B | +4.5% | 1.037% | 1.44% |
| 17 | EAGLE CAPITAL MANAGEMENT LLC | 37.6M | $1.08B | -5.9% | 1.031% | 3.62% |
| 18 | NORTHERN TRUST CORP | 36.4M | $1.04B | +0.9% | 0.998% | 0.14% |
| 19 | FRANKLIN RESOURCES INC | 31.6M | $908.3M | +28.4% | 0.868% | 0.22% |
| 20 | UBS ASSET MANAGEMENT AMERICAS INC | 31.2M | $896.0M | +10.6% | 0.856% | 0.19% |
| 21 | DIMENSIONAL FUND ADVISORS LP | 29.5M | $845.9M | +1.8% | 0.808% | 0.18% |
| 22 | Bank of New York Mellon Corp | 27.2M | $782.2M | -0.7% | 0.748% | 0.14% |
| 23 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 26.8M | $769.4M | -3.5% | 0.736% | 2.38% |
| 24 | HARRIS ASSOCIATES L P | 26.4M | $759.3M | -3.7% | 0.726% | 1.01% |
| 25 | Legal & General Group Plc | 24.4M | $699.7M | +1.6% | 0.669% | 0.16% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in CMCSA — a direct measure of their conviction.
Filings activity in CMCSA during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,988 | 1.6% | 94.54% | 4.94 pp | $84.40B | 5.0% |
| Q4 2025 | 2,021 | 2.5% | 99.48% | 2.64 pp | $88.82B | 2.6% |
| Q3 2025 | 2,072 | 6.6% | 102.12% | 18.73 pp | $91.17B | 16% |
| Q2 2025 | 2,219 | 2.3% | 120.85% | +0.06 pp | $107.89B | +0.1% |
| Q1 2025 | 2,271 | 2.8% | 120.79% | 6.43 pp | $107.83B | 5.1% |
| Q4 2024 | 2,336 | +2.9% | 127.22% | 15.86 pp | $113.58B | 11% |
| Q3 2024 | 2,271 | +1.2% | 143.08% | 9.20 pp | $127.73B | 6.0% |
| Q2 2024 | 2,243 | — | 152.28% | — | $135.95B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying CMCSA stock.
Based on Q1 2026 13F filings, institutional ownership of Comcast Corporation stands at 94.5%, held across 1,988 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of CMCSA, with approximately 314,985,765 shares worth $9.04B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of CMCSA.
Our composite Smart Money Score for CMCSA is 18 out of 100 (Heavy Distribution). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
221 institutions opened new positions in CMCSA during Q1 2026, while 254 fully exited. 620 added to existing positions and 1,138 trimmed.
CMCSA institutional ownership fell by 4.94 percentage points quarter-over-quarter, with a net change of -33 holders.
The top 10 institutions account for 49.7% of all reported 13F value in CMCSA, and the top 25 account for 67.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Comcast Corporation (CMCSA) Institutional Ownership