MARSHALL WACE, LLP's ownership history for PFE

MARSHALL WACE, LLP currently holds 16.1M shares with a market value of $451.6M. It started holding PFE on 2024-09-30. At its peak, it held 16.1M shares on 2026-03-31. Its highest holding value was $451.6M on 2026-03-31. At its lowest, it held 447.9K shares on 2025-06-30, with a value of $10.9M on 2025-06-30. In the recent 180 days, MARSHALL WACE, LLP has increased its shares by 9.1M. In the recent year, MARSHALL WACE, LLP has increased its shares by 2.0M.

It has also owned 5.0K contracts of puts, with the market value of the underlying securities totaling $14.0M on 2025-09-30. At its peak, it held 18.0K contracts of puts on 2025-12-31 and it owned puts with the market value of the underlying securities totaling $44.8M on 2025-12-31. At its lowest, it held 5.0K contracts of puts on 2026-03-31 and it owned puts with the market value of the underlying securities totaling $14.0M on 2026-03-31. In the recent 180 days, MARSHALL WACE, LLP has decreased its holdings by 1.8K contracts.