Arthur J. Gallagher & Co
1,299 hedge funds and large institutions have $60.6B invested in Arthur J. Gallagher & Co in 2025 Q4 according to their latest regulatory filings, with 158 funds opening new positions, 394 increasing their positions, 566 reducing their positions, and 173 closing their positions.
33% more call options, than puts
Call options by funds: $146M | Put options by funds: $109M
3.31% more ownership
Funds ownership: 87.89% → 91.2% (+3.3%)
9% less first-time investments, than exits
New positions opened: 158 | Existing positions closed: 173
3% less funds holding
Funds holding: 1,341 → 1,299 (-42)
13% less capital invested
Capital invested by funds: $69.7B → $60.6B (-$9.12B)
30% less repeat investments, than reductions
Existing positions increased: 394 | Existing positions reduced: 566
31% less funds holding in top 10
Funds holding in top 10: 26 → 18 (-8)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$861M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$683M |
| 3 |
Viking Global Investors
Stamford,
Connecticut
|
+$276M |
| 4 |
Dodge & Cox
San Francisco,
California
|
+$233M |
| 5 |
Capital World Investors
Los Angeles,
California
|
+$220M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$317M |
| 2 |
Capital International Investors
Los Angeles,
California
|
-$242M |
| 3 |
Sands Capital Management
Arlington,
Virginia
|
-$225M |
| 4 |
Morgan Stanley
New York
|
-$215M |
| 5 |
DZ Bank
Frankfurt Am Main,
Germany
|
-$206M |
AJG Hedge Fund Activity: Q4 2025 in Review
1,299 institutional investors reported a position in Arthur J. Gallagher & Co (AJG) for Q4 2025, worth a combined $60.6B — down 13% from $69.7B a quarter earlier.
Sellers outnumbered buyers: 173 funds closed out of AJG and 158 opened new positions — a net loss of 15 holders — while 566 trimmed existing stakes and 394 added.
The largest buyer was T. Rowe Price Investment Management, adding an estimated $861M. The largest seller was Massachusetts Financial Services, cutting an estimated $317M.
- 1,299 institutional investors held Arthur J. Gallagher & Co (AJG) as of Q4 2025, down from 1,341 in Q3 2025.
- Funds reported $60.6B of Arthur J. Gallagher & Co stock for Q4 2025, down 13% quarter-over-quarter.
- 158 funds opened new Arthur J. Gallagher & Co positions in Q4 2025 and 173 closed out, a net change of -15 holders.
- The largest Arthur J. Gallagher & Co buyer in Q4 2025 was T. Rowe Price Investment Management, an estimated $861M added.
- The largest Arthur J. Gallagher & Co seller in Q4 2025 was Massachusetts Financial Services, an estimated $317M sold.
Based on aggregated 13F filings for Q4 2025.