California State Teachers Retirement System / MRK
California State Teachers Retirement System’s Merck & Co Inc Position
Does California State Teachers Retirement System own Merck & Co Inc (MRK)? Yes — 3.84M shares worth $461M (+0.49% of its 13F portfolio) as of Q1 2026, down from 3.95M shares the prior filed quarter.
Position Value
$461M
Q1 2026
Shares
3.84M
% of Portfolio
+0.49%
Quarters Held
30
currently held
Position History MRK
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 3.84M | $461M | +0.49% |
| Q4 2025 | 3.95M | $415M | +0.42% |
| Q3 2025 | 4.06M | $341M | +0.35% |
| Q2 2025 | 4.06M | $322M | +0.36% |
| Q1 2025 | 4.04M | $363M | +0.45% |
| Q4 2024 | 4.08M | $405M | +0.59% |
| Q3 2024 | 4.13M | $470M | +0.66% |
| Q2 2024 | 4.14M | $513M | +0.75% |
| Q1 2024 | 4.12M | $544M | +0.69% |
| Q4 2023 | 4.09M | $446M | +0.62% |
| Q3 2023 | 4.05M | $417M | +0.64% |
| Q2 2023 | 4.21M | $486M | +0.69% |
| Q1 2023 | 4.29M | $457M | +0.68% |
| Q4 2022 | 4.33M | $481M | +0.76% |
| Q3 2022 | 4.27M | $368M | +0.62% |
| Q2 2022 | 4.42M | $403M | +0.64% |
| Q1 2022 | 4.42M | $363M | +0.48% |
| Q4 2021 | 4.68M | $359M | +0.42% |
| Q3 2021 | 4.65M | $349M | +0.45% |
| Q2 2021 | 4.60M | $358M | +0.45% |
| Q1 2021 | 5.01M | $386M | +0.51% |
| Q4 2020 | 5.06M | $414M | +0.58% |
| Q3 2020 | 5.11M | $424M | +0.68% |
| Q2 2020 | 5.17M | $400M | +0.70% |
| Q1 2020 | 5.30M | $408M | +0.88% |
| Q4 2019 | 5.27M | $480M | +0.82% |
| Q3 2019 | 4.81M | $405M | +0.79% |
| Q2 2019 | 4.76M | $399M | +0.79% |
| Q1 2019 | 4.82M | $401M | +0.82% |
| Q4 2018 | 4.81M | $368M | +0.84% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See California State Teachers Retirement System’s full portfolio or all institutional holders of MRK.