New position
New position: 4.85%
Baupost Group opened a new position at 4.85% of the portfolio, buying 769,000 shares.
Estimated quarter price range
Price estimate unavailable.
+769,000 Shares
n/a
Back to 13F signals
Unclassified
AON PLC
Current managers
2
Company market cap
Unavailable
No reliable live market-cap source is available for this company.
Estimated quarter price range
Latest four quarters with available market data.
0
Q1 2026Price estimate unavailable.
Q4 2025Price estimate unavailable.
Q3 2025Price estimate unavailable.
Q2 2025Price estimate unavailable.
Price estimate unavailable.
Latest 13F signals for this stock
Counts show how tracked institutions changed this company in their latest available filings.
3
New position
1
Increased
1
Reduced
0
Exited
1
Who holds it and what changed this quarter
Portfolio weight and share-count changes are shown for every tracked manager with a current or prior-quarter position.
SEC05/14/2026
Exited
Exited: 0.46%
Berkshire Hathaway exited a position that was 0.46% of the portfolio, selling 3,602,995 shares.
Estimated quarter price range
Price estimate unavailable.
-3,602,995 Shares
Current: 0 Shares
-100.00%
Increased
0.02% -> 0.03%
Bridgewater Associates added 6,851 shares; portfolio weight moved from 0.02% to 0.03%.
Estimated quarter price range
Price estimate unavailable.
+6,851 Shares
+51.25%
SEC source transparency
Signals are derived from SEC EDGAR 13F information tables. Search aliases, tickers, themes, and company mappings help discovery but do not replace the original filing.
Data source
SEC EDGAR
Source filings
16
Latest reporting quarter
2026Q1
Four-quarter trend
Each line is one tracked manager’s portfolio weight. Labels identify the manager directly.
Historical and source details
Market values, quarterly totals, and original CUSIP rows are available below without obscuring current actions.
Quarterly holdings details
| Quarter | Current managers | Combined holding value | Total shares | Manager details |
|---|---|---|---|---|
| Q2 2025 | 1 | $1,462,716,000 | 4,100,000 | Berkshire Hathaway New position - 4,100,000 Shares |
| Q3 2025 | 2 | $1,464,012,289 | 4,105,705 | Berkshire Hathaway Unchanged - 4,100,000 Shares Bridgewater Associates New position - 5,705 Shares |
| Q4 2025 | 2 | $1,276,142,176 | 3,616,363 | Berkshire Hathaway Reduced - 3,602,995 Shares Bridgewater Associates Increased - 13,368 Shares |
| Q1 2026 | 2 | $254,744,289 | 789,219 | Berkshire Hathaway Exited - 0 Shares Bridgewater Associates Increased - 20,219 Shares Baupost Group New position - 769,000 Shares |
Data source
Holdings facts come from SEC 13F information tables. Tickers, company aliases, and themes are used only for search and normalized display, not as a holdings source.