John Osterweis - AltaRock Partners
Period: Q1 2026
Portfolio date: 31 Mar 2026
No. of stocks: 8
Portfolio value: $4,126,337,614
Holding/activity history for Berkshire Hathaway CL B (BRK.B)
| Period |
Shares |
% of Portfolio |
Activity |
% Change to Portfolio |
Reported Price |
Value |
Filing |
| 2016 Q3 |
0 |
0.00 |
Sell 100.00%
|
8.30 |
|
|
SEC |
| 2016 Q2 |
315,375 |
8.30 |
Buy
|
8.30 |
$144.79 |
$45,663,000 |
SEC |