Tracked funds
11Unique WSM-tracked managers; table rows may include common shares and optionsMCO
Ticker case file
MCO
MOODYS CORP
$448.39-1.15%NYQ
Politicians active
2Recent transactions disclosed via House Clerk / Senate eFD13F notional
$13.5B2026-03-31Top conviction
4.1%max % across any fund's portfolioThis page is the WSM tracked universe, not market-wide ownership. 13F rows are quarterly snapshots, about 45 days delayed; PTR rows are event-based public disclosures.
13F filing
Funds holding this ticker
| Manager | 13F value | Conviction | Class | Option | Reported | SEC filing |
|---|---|---|---|---|---|---|
| Berkshire Hathaway Inc.Other | $10.8B | 4.1% | SH | — | 2026-03-31 | SEC filing |
| FMR LLCOther | $2.2B | 0.11% | SH | — | 2026-03-31 | SEC filing |
| Baillie Gifford & CoOther | $333.4M | 0.34% | SH | — | 2026-03-31 | SEC filing |
| Renaissance Technologies LLCOther | $48.9M | 0.08% | SH | — | 2026-03-31 | SEC filing |
| Citadel Advisors LLCHedge | $39.1M | 0.01% | SH | PUT | 2026-03-31 | SEC filing |
| Citadel Advisors LLCOther | $35.6M | 0.01% | SH | — | 2026-03-31 | SEC filing |
| Citadel Advisors LLCOther | $35.6M | 0.01% | SH | CALL | 2026-03-31 | SEC filing |
| Two Sigma Investments, LPOther | $30.7M | 0.02% | SH | — | 2026-03-31 | SEC filing |
| Point72 Asset Management, L.P.Other | $10.4M | 0.01% | SH | — | 2026-03-31 | SEC filing |
| Millennium Management LLCHedge | $8.8M | 0.00% | SH | PUT | 2026-03-31 | SEC filing |
| Loomis, Sayles & Company, L.P.Other | $8.7M | 0.01% | SH | — | 2026-03-31 | SEC filing |
| Jennison Associates LLCOther | $4.1M | 0.00% | SH | — | 2026-03-31 | SEC filing |
| Millennium Management LLCOther | $4.1M | 0.00% | SH | — | 2026-03-31 | SEC filing |
| Millennium Management LLCOther | $3.2M | 0.00% | SH | CALL | 2026-03-31 | SEC filing |
| Balyasny Asset Management L.P.Other | $1.1M | 0.00% | SH | — | 2026-03-31 | SEC filing |
Politician
Politician PTR activity
| Public date | Politician | Action | Owner | Amount range | Filing |
|---|---|---|---|---|---|
| 2025-10-10 | Valerie Hoyle HouseholdD · OR-04 | Sale | Self | $1K–$15K | 20032211 |
| 2025-05-16 | Dan Newhouse HouseholdR · WA-04 | Sale (Partial) | Self | $1K–$15K | 20030292 |
Combined activity
13F filings + PTR transactions, newest first
- 13F filing2026-05-15Berkshire Hathaway Inc. · $10.8B↗
- 13F filing2026-05-15FMR LLC · $2.2B↗
- 13F filing2026-05-15Citadel Advisors LLC · $39.1M↗
- 13F filing2026-05-15Citadel Advisors LLC · $35.6M↗
- 13F filing2026-05-15Citadel Advisors LLC · $35.6M↗
- 13F filing2026-05-15Two Sigma Investments, LP · $30.7M↗
- 13F filing2026-05-15Point72 Asset Management, L.P. · $10.4M↗
- 13F filing2026-05-15Millennium Management LLC · $8.8M↗
- 13F filing2026-05-15Millennium Management LLC · $4.1M↗
- 13F filing2026-05-15Millennium Management LLC · $3.2M↗
- 13F filing2026-05-15Balyasny Asset Management L.P. · $1.1M↗
- 13F filing2026-05-14Renaissance Technologies LLC · $48.9M↗
- 13F filing2026-05-14Loomis, Sayles & Company, L.P. · $8.7M↗
- 13F filing2026-05-08Baillie Gifford & Co · $333.4M↗
- 13F filing2026-05-06Jennison Associates LLC · $4.1M↗
- PTR2025-10-10Valerie Hoyle Household · Sale · $1K–$15K↗
- PTR2025-05-16Dan Newhouse Household · Sale (Partial) · $1K–$15K↗
Often co-held with