13F

Stock

Biogen Inc.

BIIB · held by 7 managers

Reported value

$266.4M

Holders

7

+0 new · −0 exited

Holders’ est. mark

$5.4M

Price effect on 7 books still in the name

Largest holder

$167.4M

BARCLAYS PLC

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BARCLAYS PLC587.8K$167.4M$3.12MAdded$40.1M
Employees Provident Fund Board287.5K$81.9M$1.96MCut−$14M
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main33.2K$9.46M$164.5KAdded$2.75M
Swiss Life Asset Management Ltd21.2K$6.04M$146.2KCut−$5.01M
Leonteq Securities AG4.93K$1.41M$1.86KAdded$1.33M
Marex Group plc713$203.1K$4.86KCut−$117.2K
CHESAPEAKE ASSET MANAGEMENT LLC50$14.2K$341Added$341

Positions as of Q2 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.