13F · MOODYS CORP
MCO institutional ownership and 13F activity
Track MCO institutional ownership through SEC 13F filings, including top shareholders, reported positions, portfolio weights, buys, sells, and quarterly holding trends.
Historical filing data, not live positions.Snapshot generated Sep 12, 2026 from SEC EDGAR 13F-HR information tables. 13F reports can arrive up to 45 days after quarter-end and omit many asset types.
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MCO Institutional Ownership Snapshot
See how many institutions reported MCO, their combined market value, ownership concentration, and latest position changes.
Active holders1
Reported value$11.2B
Top 5 concentration100.0%
New holders0
Reduced holders0
Exited holders0
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MCO Ownership Takeaways
Highlights from the latest MCO 13F filings, including the largest holder, biggest increase, largest reduction, and ownership concentration.
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Who Owns MCO? Institutional Holders
Compare 1 current and exited MCO positions by manager, shares, reported market value, portfolio weight, and quarter-over-quarter change.
| Manager | Shares | Reported value | Portfolio weight | Share change | Status |
|---|---|---|---|---|---|
| Warren Buffett / Berkshire HathawayJun 30, 2026 · CIK 0001067983 | 24.7M | $11.2B | 3.73% | 0.0% | Unchanged |
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MCO Institutional Buying and Selling
See which institutions opened, increased, reduced, or exited MCO positions compared with their previous 13F filing.
New 0
No holders in this category.
Increased 0
No holders in this category.
Reduced 0
No holders in this category.
Exited 0
No holders in this category.
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Types of Institutional Holders
Compare concentrated funds, diversified managers, and broad portfolios that reported MCO. Categories are based on portfolio breadth, not SEC classifications.
Concentrated managers1
tracked holders06
MCO Institutional Ownership by Quarter
Follow reported MCO holders, shares, and market value across recent quarters. The institutions included may vary by filing period.
Q2 20261 holders
$11.2B24.7M sharesQ1 20261 holders
$10.8B24.7M sharesQ4 20252 holders
$12.6B24.7M sharesQ3 20251 holders
$11.8B24.7M sharesQ2 20251 holders
$12.4B24.7M shares| Quarter | Holders | Reported value | Shares | New | Exits |
|---|---|---|---|---|---|
| Jun 30, 2026 | 1 | $11.2B | 24.7M | 0 | 0 |
| Mar 31, 2026 | 1 | $10.8B | 24.7M | 0 | 1 |
| Dec 31, 2025 | 2 | $12.6B | 24.7M | 1 | 0 |
| Sep 30, 2025 | 1 | $11.8B | 24.7M | 0 | 0 |
| Jun 30, 2025 | 1 | $12.4B | 24.7M | 0 | 0 |
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Stocks Held by Similar Institutions
Discover other stocks reported by institutions that also hold MCO, and compare holder counts, market value, and concentration.
3 tracked rowsAAPLAPPLE INC · $66.3B1 tracked rowsAXPAMERICAN EXPRESS CO · $51.3B8 tracked rowsGOOGLALPHABET INC · $32.6B2 tracked rowsKOCOCA COLA CO · $32.5B1 tracked rowsBACBANK OF AMER CORP · $27.5B1 tracked rowsCVXCHEVRON CORPORATION · $14B1 tracked rowsOXYOCCIDENTAL PETE CORP · $12.9B2 tracked rowsCBCHUBB LIMITED · $11.7B
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Common Questions About MCO
Who is the largest tracked institutional holder of MCO?
Berkshire Hathaway is the largest active holder in the current MCO sample, reporting $11.2B. The MCO holder table ranks every matched manager.
Which institution increased its MCO position the most?
No tracked institution reported an increase or new MCO position in the current cycle.
Which institution reduced or exited MCO most significantly?
No tracked institution reported a reduction or exit in MCO during the current cycle.
Did new holders enter or existing holders exit MCO?
0 new holders entered and 0 holders fully exited in the current filing cycle. Counts reflect the SEC 13F filings currently included on BasisPilot.
How concentrated is tracked ownership in MCO?
The five largest tracked holders account for 100.0% of aggregate reported MCO value. This is concentration within the tracked sample, not the entire market.
How has tracked ownership in MCO changed across four quarters?
From the oldest comparable quarter to the latest, aggregate reported MCO value among tracked managers decreased by 9.7%. Manager coverage can vary by quarter.
What company evidence should be checked alongside MCO's 13F changes?
Review MOODYS CORP's latest earnings, SEC filings, guidance, capital allocation, and material company events. Delayed 13F data alone cannot confirm that a manager still holds the same position today.
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Sources and Methodology
Source: SEC EDGAR Form 13F-HR information tables. Positions are grouped by investment manager and ticker, then compared with the prior available filing. 13F data is delayed, historical, and does not represent a manager's complete or current portfolio.