Aon
1,259 hedge funds and large institutions have $60.6B invested in Aon in 2026 Q1 according to their latest regulatory filings, with 141 funds opening new positions, 484 increasing their positions, 415 reducing their positions, and 144 closing their positions.
41% more call options, than puts
Call options by funds: $97.2M | Put options by funds: $68.9M
17% more repeat investments, than reductions
Existing positions increased: 484 | Existing positions reduced: 415
12% more funds holding in top 10
Funds holding in top 10: 26 → 29 (+3)
0.39% less ownership
Funds ownership: 87.96% → 87.57% (-0.39%)
2% less first-time investments, than exits
New positions opened: 141 | Existing positions closed: 144
2% less funds holding
Funds holding: 1,282 → 1,259 (-23)
9% less capital invested
Capital invested by funds: $66.7B → $60.6B (-$6.06B)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JP Morgan Chase
New York
|
+$814M |
| 2 |
Morgan Stanley
New York
|
+$267M |
| 3 |
BG
Baupost Group
Boston,
Massachusetts
|
+$256M |
| 4 |
WANY
Wealthspire Advisors (New York)
New York
|
+$236M |
| 5 |
Mitsubishi UFJ Asset Management
Tokyo,
Japan
|
+$234M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Berkshire Hathaway
Omaha,
Nebraska
|
-$1.27B |
| 2 |
Eagle Capital Management (New York)
New York
|
-$600M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
-$272M |
| 4 |
Capital World Investors
Los Angeles,
California
|
-$258M |
| 5 |
Millennium Management
New York
|
-$205M |
AON Hedge Fund Activity: Q1 2026 in Review
1,259 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in Aon (AON) for Q1 2026, worth a combined $60.6B — down 9.1% from $66.7B a quarter earlier.
Sellers outnumbered buyers: 144 funds closed out of AON and 141 opened new positions — a net loss of 3 holders — while 415 trimmed existing stakes and 484 added.
The largest buyer was JP Morgan Chase, adding an estimated $814M. The largest seller was Berkshire Hathaway, exiting entirely with an estimated $1.27B sold.
- 1,259 institutional investors held Aon (AON) as of Q1 2026, down from 1,282 in Q4 2025.
- Funds reported $60.6B of Aon stock for Q1 2026, down 9.1% quarter-over-quarter.
- 141 funds opened new Aon positions in Q1 2026 and 144 closed out, a net change of -3 holders.
- The largest Aon buyer in Q1 2026 was JP Morgan Chase, an estimated $814M added.
- The largest Aon seller in Q1 2026 was Berkshire Hathaway, an estimated $1.27B sold.
Based on aggregated 13F filings for Q1 2026.