Who owns MCO
1,328 institutions reported holding MCO for 2026Q1, together 90% of the company, fewer than the 1,382 a quarter earlier.
1,328
Institutions reporting a position · as of 2026Q1 · down from 1,382 the quarter before
- Shares held by institutions
- 160.2M
Shares held by institutions · 90% of the company · long US equity positions only, as reported on Form 13F
- Reported value
- $69.8B
Reported value · at 2026-03-31 prices, not today's
- Top 5 holders
- 42%
Top 5 holders · of the whole company, between five filers
Details›
- Reporting quarter2026-03-31
- 2026Q1
- Quarters on record
- 52
- New positions
- 134
- Positions exited
- 197
- Added to
- 442
- Reduced
- 441
- Top 10 holdersof the company
- 51%
| Quarter | Filers | Shares | Reported value |
|---|---|---|---|
| 2026Q1 | 1,328 | 160.2M | $69.8B |
| 2025Q4 | 1,382 | 161.9M | $82.6B |
| 2025Q3 | 1,313 | 160.5M | $76.5B |
| 2025Q2 | 1,323 | 164.2M | $82.3B |
| 2025Q1 | 1,284 | 165.0M | $76.8B |
| 2024Q4 | 1,275 | 164.2M | $77.7B |
| 2024Q3 | 1,187 | 163.6M | $77.2B |
| 2024Q2 | 1,142 | 165.7M | $69.7B |
| 2024Q1 | 1,111 | 165.4M | $65.0B |
| 2023Q4 | 1,085 | 167.7M | $65.5B |
| 2023Q3 | 1,018 | 168.0M | $53.1B |
| 2023Q2 | 1,004 | 167.4M | $58.1B |
| 2023Q1 | 945 | 169.7M | $52.0B |
| 2022Q4 | 952 | 170.0M | $47.4B |
| 2022Q3 | 925 | 168.3M | $40.8B |
| 2022Q2 | 940 | 168.4M | $45.8B |
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Berkshire Hathaway Inc | 24.7M | 14% | $10.8B |
| VANGUARD GROUP INC | 15.4M | 8.7% | $6.70B |
| TCI FUND MANAGEMENT LTD | 14.3M | 8.1% | $6.25B |
| BlackRock Inc. | 13.1M | 7.4% | $5.73B |
| STATE STREET CORP | 7.1M | 4.0% | $3.11B |
| FMR LLC | 5.0M | 2.8% | $2.18B |
| GEODE CAPITAL MANAGEMENT LLC | 4.1M | 2.3% | $1.78B |
| Fiera Capital Corp | 2.4M | 1.3% | $1.03B |
| PineStone Asset Management Inc. | 2.3M | 1.3% | $1.03B |
| Bank of New York Mellon Corp | 2.3M | 1.3% | $1.02B |
SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.
reading the register…
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