Aon
1,225 hedge funds and large institutions have $69.2B invested in Aon in 2025 Q2 according to their latest regulatory filings, with 106 funds opening new positions, 430 increasing their positions, 471 reducing their positions, and 134 closing their positions.
5% more call options, than puts
Call options by funds: $164M | Put options by funds: $157M
0.33% more ownership
Funds ownership: 89.52% → 89.85% (+0.33%)
9% less repeat investments, than reductions
Existing positions increased: 430 | Existing positions reduced: 471
3% less funds holding
Funds holding: 1,267 → 1,225 (-42)
10% less capital invested
Capital invested by funds: $77B → $69.2B (-$7.74B)
21% less first-time investments, than exits
New positions opened: 106 | Existing positions closed: 134
33% less funds holding in top 10
Funds holding in top 10: 43 → 29 (-14)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$301M |
| 2 |
Morgan Stanley
New York
|
+$269M |
| 3 |
Two Sigma Advisers
New York
|
+$262M |
| 4 |
FCM
Farallon Capital Management
San Francisco,
California
|
+$226M |
| 5 |
Two Sigma Investments
New York
|
+$226M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DZ Bank
Frankfurt Am Main,
Germany
|
-$512M |
| 2 |
JP Morgan Chase
New York
|
-$347M |
| 3 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$319M |
| 4 |
Mackenzie Financial
Toronto Ontario,
Ontario, Canada
|
-$236M |
| 5 |
Boston Partners
Boston,
Massachusetts
|
-$232M |
AON Hedge Fund Activity: Q2 2025 in Review
1,225 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Aon (AON) for Q2 2025, worth a combined $69.2B — down 10% from $77B a quarter earlier.
Sellers outnumbered buyers: 134 funds closed out of AON and 106 opened new positions — a net loss of 28 holders — while 471 trimmed existing stakes and 430 added.
The largest buyer was BlackRock, adding an estimated $301M. The largest seller was DZ Bank, cutting an estimated $512M.
- 1,225 institutional investors held Aon (AON) as of Q2 2025, down from 1,267 in Q1 2025.
- Funds reported $69.2B of Aon stock for Q2 2025, down 10% quarter-over-quarter.
- 106 funds opened new Aon positions in Q2 2025 and 134 closed out, a net change of -28 holders.
- The largest Aon buyer in Q2 2025 was BlackRock, an estimated $301M added.
- The largest Aon seller in Q2 2025 was DZ Bank, an estimated $512M sold.
Based on aggregated 13F filings for Q2 2025.