13F

Stock

Biogen Inc.

BIIB · held by 7 managers

Reported value

$230.5M

Holders

7

+0 new · −0 exited

Holders’ est. mark

−$20.6M

Price effect on 7 books still in the name

Largest holder

$113.7M

Employees Provident Fund Board

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Employees Provident Fund Board442.4K$113.7M−$8MAdded$31.8M
BARCLAYS PLC395.7K$101.7M−$11MCut−$65.7M
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main34.6K$8.9M−$924.1KCut−$560.4K
Swiss Life Asset Management Ltd16.3K$4.18M−$457.4KCut−$1.86M
Leonteq Securities AG6.49K$1.67M−$137.4KAdded$261.3K
Marex Group plc1.24K$319.5K−$19.9KAdded$116.4K
CHESAPEAKE ASSET MANAGEMENT LLC50$12.8K−$1.39KCut−$1.39K

Positions as of Q3 2023. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.