SEC 13F Intelligence

Thompson Siegel & Walmsley LLC / ECVT

Thompson Siegel & Walmsley LLC’s Ecovyst Inc Position

Does Thompson Siegel & Walmsley LLC own Ecovyst Inc (ECVT)? Not currently — the last reported position was 1.37M shares worth $13M in Q4 2025; the fund’s latest 13F (Q1 2026) no longer reports it.

Position Value
$13M
Q4 2025
Shares
1.37M
% of Portfolio
+0.22%
Quarters Held
12
position exited

Position History ECVT

Reported value by quarter
Q1 ’23: $8MQ1 ’23Q2 ’23: $15MQ3 ’23: $16MQ3 ’23Q4 ’23: $15MQ1 ’24: $16MQ1 ’24Q2 ’24: $16MQ3 ’24: $15MQ3 ’24Q4 ’24: $16MQ1 ’25: $12MQ1 ’25Q2 ’25: $12MQ3 ’25: $13MQ3 ’25Q4 ’25: $13Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q4 20251.37M$13M+0.22%
Q3 20251.52M$13M+0.22%
Q2 20251.52M$12M+0.21%
Q1 20251.92M$12M+0.20%
Q4 20242.10M$16M+0.25%
Q3 20242.19M$15M+0.22%
Q2 20241.73M$16M+0.25%
Q1 20241.44M$16M+0.25%
Q4 20231.54M$15M+0.24%
Q3 20231.65M$16M+0.27%
Q2 20231.30M$15M+0.24%
Q1 2023747.6K$8M+0.13%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Thompson Siegel & Walmsley LLC’s full portfolio or all institutional holders of ECVT.