Richard Pzena - Pzena Investment Management
Period: Q1 2026
Portfolio date: 31 Mar 2026
No. of stocks: 158
Portfolio value: $30,796,447,662
Holding/activity history for MKS Instruments (MKSI)
| Period |
Shares |
% of Portfolio |
Activity |
% Change to Portfolio |
Reported Price |
Value |
Filing |
| 2024 Q4 |
0 |
0.00 |
Sell 100.00%
|
<0.01 |
|
|
SEC |
| 2024 Q3 |
3,323 |
<0.01 |
Buy
|
<0.01 |
$108.71 |
$361,243 |
SEC |