Thompson Siegel & Walmsley LLC / MRK
Thompson Siegel & Walmsley LLC’s Merck & Co Inc Position
Does Thompson Siegel & Walmsley LLC own Merck & Co Inc (MRK)? Yes — 274.7K shares worth $33M (+0.58% of its 13F portfolio) as of Q1 2026, down from 301.9K shares the prior filed quarter.
Position Value
$33M
Q1 2026
Shares
274.7K
% of Portfolio
+0.58%
Quarters Held
30
currently held
Position History MRK
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 274.7K | $33M | +0.58% |
| Q4 2025 | 301.9K | $32M | +0.53% |
| Q3 2025 | 302.4K | $25M | +0.41% |
| Q2 2025 | 285.3K | $23M | +0.38% |
| Q1 2025 | 272.4K | $24M | +0.41% |
| Q4 2024 | 246.4K | $25M | +0.38% |
| Q3 2024 | 248.1K | $28M | +0.42% |
| Q2 2024 | 249.2K | $31M | +0.49% |
| Q1 2024 | 250.6K | $33M | +0.51% |
| Q4 2023 | 254.5K | $28M | +0.45% |
| Q3 2023 | 259.9K | $27M | +0.44% |
| Q2 2023 | 259.3K | $30M | +0.48% |
| Q1 2023 | 265.5K | $28M | +0.46% |
| Q4 2022 | 271.1K | $30M | +0.49% |
| Q3 2022 | 298.5K | $26M | +0.44% |
| Q2 2022 | 300.3K | $27M | +0.44% |
| Q1 2022 | 372.7K | $31M | +0.44% |
| Q4 2021 | 326.7K | $25M | +0.34% |
| Q3 2021 | 323.0K | $24M | +0.35% |
| Q2 2021 | 321.0K | $25M | +0.34% |
| Q1 2021 | 304.5K | $23M | +0.33% |
| Q4 2020 | 227.9K | $19M | +0.30% |
| Q3 2020 | 207.4K | $17M | +0.33% |
| Q2 2020 | 183.3K | $14M | +0.29% |
| Q1 2020 | 131.3K | $10M | +0.24% |
| Q4 2019 | 127.2K | $12M | +0.18% |
| Q3 2019 | 116.8K | $10M | +0.16% |
| Q2 2019 | 118.1K | $10M | +0.14% |
| Q1 2019 | 117.9K | $10M | +0.14% |
| Q4 2018 | 118.2K | $9M | +0.14% |
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 MRK.