SEC 13F Intelligence

Thompson Siegel & Walmsley LLC / CSGP

Thompson Siegel & Walmsley LLC’s Costar Group Inc Position

Does Thompson Siegel & Walmsley LLC own Costar Group Inc (CSGP)? Yes — 615.3K shares worth $25M (+0.44% of its 13F portfolio) as of Q1 2026, up from 3.0K shares the prior filed quarter.

Position Value
$25M
Q1 2026
Shares
615.3K
% of Portfolio
+0.44%
Quarters Held
8
currently held

Position History CSGP

Reported value by quarter
Q4 ’18: $506,000Q4 ’18Q4 ’21: $237,000Q4 ’21Q1 ’22: $599,000Q1 ’22Q3 ’22: $139,000Q3 ’22Q4 ’22: $386,000Q4 ’22Q1 ’23: $275,000Q1 ’23Q2 ’23: $267,000Q2 ’23Q1 ’26: $25MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026615.3K$25M+0.44%
Q2 20233.0K$267,0000.00%
Q1 20234.0K$275,0000.00%
Q4 20225.0K$386,000+0.01%
Q3 20222.0K$139,0000.00%
Q1 20229.0K$599,000+0.01%
Q4 20213.0K$237,0000.00%
Q4 20181.5K$506,000+0.01%

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 CSGP.