D. E. Shaw & Co., Inc.'s ownership history for MRK

D. E. Shaw & Co., Inc. currently holds 3.5M shares with a market value of $291.1M. It started holding MRK on 2024-12-31. At its peak, it held 10.4M shares on 2025-06-30. Its highest holding value was $835.8M on 2025-03-31. At its lowest, it held 3.5M shares on 2025-09-30, with a value of $291.1M on 2025-09-30. In the recent 180 days, D. E. Shaw & Co., Inc. has decreased its shares by 5.8M.

It has also owned 11.3K contracts of calls, with the market value of the underlying securities totaling $94.7M on 2024-12-31. At its peak, it held 11.3K contracts of calls on 2025-09-30 and it owned calls with the market value of the underlying securities totaling $94.7M on 2025-09-30. At its lowest, it held 3.0K contracts of calls on 2025-03-31 and it owned calls with the market value of the underlying securities totaling $26.5M on 2025-03-31. In the recent 180 days, D. E. Shaw & Co., Inc. has increased its holdings by 8.3K contracts.

It has also owned 9.1K contracts of puts, with the market value of the underlying securities totaling $76.8M on 2024-12-31. At its peak, it held 9.1K contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $76.8M on 2025-09-30. At its lowest, it held 5.2K contracts of puts on 2025-03-31 and it owned puts with the market value of the underlying securities totaling $46.8M on 2025-03-31. In the recent 180 days, D. E. Shaw & Co., Inc. has increased its holdings by 3.9K contracts.