Biogen MA Inc. (CIK 0001810387)

Latest company ownership

Role: 10% Owner
Shares held
17,652,466
Last filed at
Sep 28, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2021Q4 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Sep 26, 2023 Sep 28, 2023 BIOGEN INC. 10% Owner Sell 17.5 -6,000,000 -25.37% $3M
Aug 29, 2022 Aug 31, 2022 BIOGEN INC. 10% Owner Sell 17.5 -500,000 -2.07% $2.7M
Dec 28, 2021 Dec 30, 2021 BIOGEN INC. 10% Owner Sell 51.3 -2,764 -0.01% $23.5K
Dec 23, 2021 Dec 28, 2021 BIOGEN INC. 10% Owner Sell 37.5 -81,787 -0.34% $699.7K
Dec 9, 2021 Dec 10, 2021 BIOGEN INC. 10% Owner Sell 47.5 -23,660 -0.10% $202.5K
Dec 7, 2021 Dec 9, 2021 BIOGEN INC. 10% Owner Sell 27.5 -127,992 -0.52% $1.1M
Dec 1, 2021 Dec 3, 2021 BIOGEN INC. 10% Owner Sell 51.3 -2,604 -0.01% $22.2K
Nov 26, 2021 Nov 30, 2021 BIOGEN INC. 10% Owner Sell 47.5 -28,884 -0.12% $248.4K