Thomas Gayner - Markel Group Inc.
Period: Q1 2026
Portfolio date: 31 Mar 2026
No. of stocks: 129
Portfolio value: $11,938,885,174
Holding/activity history for Sigma Aldrich (SIAL)
| Period |
Shares |
% of Portfolio |
Activity |
% Change to Portfolio |
Reported Price |
Value |
Filing |
| 2014 Q4 |
0 |
0.00 |
Sell 100.00%
|
0.07 |
|
|
SEC |
| 2014 Q3 |
18,000 |
0.07 |
Add 200.00%
|
0.05 |
$136.00 |
$2,448,000 |
SEC |
| 2014 Q2 |
6,000 |
0.02 |
Buy
|
0.02 |
$101.50 |
$609,000 |
SEC |