MARSHALL WACE, LLP's ownership history for REGN

MARSHALL WACE, LLP currently holds 478.6K shares with a market value of $369.4M. It started holding REGN on 2024-09-30. At its peak, it held 478.6K shares on 2025-12-31. Its highest holding value was $369.4M on 2025-12-31. At its lowest, it held 1.4K shares on 2025-03-31, with a value of $887.9K on 2025-03-31. In the recent 180 days, MARSHALL WACE, LLP has increased its shares by 238.6K. In the recent year, MARSHALL WACE, LLP has increased its shares by 351.2K.

It has also owned 1 contracts of calls, with the market value of the underlying securities totaling $77.2K on 2025-03-31. At its peak, it held 365 contracts of calls on 2025-03-31 and it owned calls with the market value of the underlying securities totaling $23.1M on 2025-03-31. At its lowest, it held 1 contracts of calls on 2025-12-31 and it owned calls with the market value of the underlying securities totaling $77.2K on 2025-12-31. In the recent 180 days, MARSHALL WACE, LLP has decreased its holdings by 364 contracts.

It has also owned 8 contracts of puts, with the market value of the underlying securities totaling $449.8K on 2025-09-30. At its peak, it held 8 contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $449.8K on 2025-09-30. At its lowest, it held 8 contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $449.8K on 2025-09-30.