Acadian Asset Management LLC / MRK
Acadian Asset Management LLC’s Merck & Co Inc Position
Does Acadian Asset Management LLC own Merck & Co Inc (MRK)? Yes — 4.20M shares worth $505M (+0.72% of its 13F portfolio) as of Q1 2026, up from 1.59M shares the prior filed quarter.
Position Value
$505M
Q1 2026
Shares
4.20M
% of Portfolio
+0.72%
Quarters Held
30
currently held
Position History MRK
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 4.20M | $505M | +0.72% |
| Q4 2025 | 1.59M | $168M | +0.28% |
| Q3 2025 | 2.20M | $185M | +0.32% |
| Q2 2025 | 4.18M | $331M | +0.68% |
| Q1 2025 | 2.59M | $233M | +0.66% |
| Q4 2024 | 566.7K | $56M | +0.16% |
| Q3 2024 | 706.0K | $80M | +0.25% |
| Q2 2024 | 549.5K | $68M | +0.21% |
| Q1 2024 | 164.9K | $22M | +0.08% |
| Q4 2023 | 80.3K | $9M | +0.03% |
| Q3 2023 | 352.7K | $36M | +0.15% |
| Q2 2023 | 917.5K | $106M | +0.44% |
| Q1 2023 | 1.07M | $113M | +0.50% |
| Q4 2022 | 1.18M | $131M | +0.64% |
| Q3 2022 | 622.3K | $54M | +0.29% |
| Q2 2022 | 711.3K | $65M | +0.33% |
| Q1 2022 | 1.04M | $86M | +0.35% |
| Q4 2021 | 2.01M | $154M | +0.57% |
| Q3 2021 | 1.94M | $146M | +0.56% |
| Q2 2021 | 1.32M | $103M | +0.39% |
| Q1 2021 | 2.41M | $185M | +0.72% |
| Q4 2020 | 1.72M | $141M | +0.54% |
| Q3 2020 | 1.34M | $111M | +0.47% |
| Q2 2020 | 1.66M | $128M | +0.55% |
| Q1 2020 | 799.9K | $62M | +0.35% |
| Q4 2019 | 296.8K | $27M | +0.12% |
| Q3 2019 | 344.9K | $29M | +0.12% |
| Q2 2019 | 170.7K | $14M | +0.07% |
| Q1 2019 | 408.8K | $34M | +0.15% |
| Q4 2018 | 886.2K | $68M | +0.34% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Acadian Asset Management LLC’s full portfolio or all institutional holders of MRK.