Berkshire Hathaway Class B
BRK.B
4,560 hedge funds and large institutions have $468B invested in Berkshire Hathaway Class B in 2025 Q1 according to their latest regulatory filings, with 226 funds opening new positions, 1,903 increasing their positions, 1,805 reducing their positions, and 107 closing their positions.
111% more first-time investments, than exits
New positions opened: 226 | Existing positions closed: 107
52% more call options, than puts
Call options by funds: $11.1B | Put options by funds: $7.32B
27% more funds holding in top 10
Funds holding in top 10: 732 → 932 (+200)
19% more capital invested
Capital invested by funds: $395B → $468B (+$73.4B)
5% more repeat investments, than reductions
Existing positions increased: 1,903 | Existing positions reduced: 1,805
1% more funds holding
Funds holding: 4,518 → 4,560 (+42)
0% less ownership
Funds ownership: 65.74% → 65.74% (-0%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$1.98B |
| 2 |
Vanguard Group
Malvern,
Pennsylvania
|
+$1.25B |
| 3 |
JP Morgan Chase
New York
|
+$814M |
| 4 |
Geode Capital Management
Boston,
Massachusetts
|
+$684M |
| 5 |
BlackRock
New York
|
+$563M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$1.28B |
| 2 |
Gates Foundation Trust
Kirkland,
Washington
|
-$1.21B |
| 3 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$570M |
| 4 |
AIS
AM Investment Strategies
Chattanooga,
Tennessee
|
-$497M |
| 5 |
Flossbach Von Storch
Cologne,
Germany
|
-$439M |
BRK.B Hedge Fund Activity: Q1 2025 in Review
4,560 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Berkshire Hathaway Class B (BRK.B) for Q1 2025, worth a combined $468B — up 19% from $395B a quarter earlier.
Buyers outnumbered sellers: 226 funds opened new BRK.B positions and 107 closed out — a net gain of 119 holders — while 1,903 added to existing stakes and 1,805 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $1.98B. The largest seller was Assenagon Asset Management, cutting an estimated $1.28B.
- 4,560 institutional investors held Berkshire Hathaway Class B (BRK.B) as of Q1 2025, up from 4,518 in Q4 2024.
- Funds reported $468B of Berkshire Hathaway Class B stock for Q1 2025, up 19% quarter-over-quarter.
- 226 funds opened new Berkshire Hathaway Class B positions in Q1 2025 and 107 closed out, a net change of +119 holders.
- The largest Berkshire Hathaway Class B buyer in Q1 2025 was Fidelity Investments, an estimated $1.98B added.
- The largest Berkshire Hathaway Class B seller in Q1 2025 was Assenagon Asset Management, an estimated $1.28B sold.
Based on aggregated 13F filings for Q1 2025.