SHS CL A
AON
AON PLC
Holdings as of 2025-09-30Filed 2025-11-14Updated 2026-10-22
View original evidence ↗Viewing holdings for 2025 Q3. View latest quarter →
Investors holding2
New positions1
Increased0
Decreased0
Exited0
Holdings by investor
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| Investor | Portfolio weight | Shares | Shares Δ | Change | Filed | Evidence |
|---|---|---|---|---|---|---|
| Viking GlobalViking Global | 1.31%+1.3 pp | 1,414,618 | — | New | 2025-11-14 | SEC filing |
| Warren Buffett / successorsBerkshire Hathaway | 0.55%-0.0 pp | 4,100,000 | 0.0% | Unchanged | 2025-11-14 | SEC filing |
Ownership over time
All 20 quarters
| Quarter | Investors holding |
|---|---|
| 2026 Q2 | 2 |
| 2026 Q1 | 2 |
| 2025 Q4 | 2 |
| 2025 Q3 | 2 |
| 2025 Q2 | 1 |
| 2025 Q1 | 1 |
| 2024 Q4 | 2 |
| 2024 Q3 | 2 |
| 2024 Q2 | 1 |
| 2024 Q1 | 1 |
| 2023 Q4 | 1 |
| 2023 Q3 | 1 |
| 2023 Q2 | 1 |
| 2023 Q1 | 1 |
| 2022 Q4 | 1 |
| 2022 Q3 | 1 |
| 2022 Q2 | 2 |
| 2022 Q1 | 2 |
| 2021 Q4 | 2 |
| 2021 Q3 | 1 |
Original sources
Public commentary is shown only when a dated, verified original is available.
Berkshire HathawayOfficial SEC filing
Viking GlobalOfficial SEC filing
Advanced · SEC data & downloads
CUSIP G0403H108 · SHS CL A
Original information table · XML/data
Original information table · XML/data
Viking Global · 13F-HR · SEC filing · TXT
Berkshire Hathaway · 13F-HR · SEC filing · TXT
Download full history CSV · all candidate groups