| Quarter | Action | Shares change | Est. value change | Δ Own | Shares held | Filing date |
|---|---|---|---|---|---|---|
| Q1 2026 | Exited | −3.6M | −$1.2B | −100.0% | 0 | May 15, 2026 |
| Q4 2025 | Reduced | −497K | −$174M | −12.1% | 3.6M | Feb 17, 2026 |
No change · Q4 2023–Q3 2025 (8 quarters)
|
No change | – | – | – | 4.1M | – |
| Q3 2023 | Reduced | −235K | −$78M | −5.4% | 4.1M | Nov 16, 2023 |
| Q2 2023 | Unchanged | – | – | – | 4.3M | Aug 14, 2023 |
| Q1 2023 | Reduced | −61K | −$19M | −1.4% | 4.3M | May 15, 2023 |
No change · Q3 2021–Q4 2022 (6 quarters)
|
No change | – | – | – | 4.4M | – |
| Q2 2021 | Added | +300K | +$73M | +7.3% | 4.4M | Aug 16, 2021 |
| Q1 2021 | First covered | – | – | – | 4.1M | May 17, 2021 |
Not currently. Warren Buffett fully exited AON in Q1 2026, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.
Warren Buffett held AON since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.
Yes. Warren Buffett reduced and then fully exited AON by Q1 2026; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.
None as of the latest filing: Warren Buffett has exited AON. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.
Warren Buffett began building the AON position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.
13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.
